CN114150416A - Optical fiber fabric with function of photocatalytic degradation of antibiotics and dye wastewater and preparation method thereof - Google Patents
Optical fiber fabric with function of photocatalytic degradation of antibiotics and dye wastewater and preparation method thereof Download PDFInfo
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- CN114150416A CN114150416A CN202111247664.4A CN202111247664A CN114150416A CN 114150416 A CN114150416 A CN 114150416A CN 202111247664 A CN202111247664 A CN 202111247664A CN 114150416 A CN114150416 A CN 114150416A
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- photocatalytic
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- 239000004744 fabric Substances 0.000 title claims abstract description 121
- 239000013307 optical fiber Substances 0.000 title claims abstract description 93
- 239000003242 anti bacterial agent Substances 0.000 title claims abstract description 36
- 229940088710 antibiotic agent Drugs 0.000 title claims abstract description 36
- 238000013033 photocatalytic degradation reaction Methods 0.000 title claims abstract description 20
- 239000002351 wastewater Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000011941 photocatalyst Substances 0.000 claims abstract description 55
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- 239000000975 dye Substances 0.000 claims abstract description 34
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- 238000006731 degradation reaction Methods 0.000 claims abstract description 13
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- 238000009941 weaving Methods 0.000 claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 42
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 17
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 15
- 239000004745 nonwoven fabric Substances 0.000 claims description 14
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 14
- 229910002915 BiVO4 Inorganic materials 0.000 claims description 9
- 238000007641 inkjet printing Methods 0.000 claims description 6
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- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
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- 238000002835 absorbance Methods 0.000 description 12
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- OGJPXUAPXNRGGI-UHFFFAOYSA-N norfloxacin Chemical compound C1=C2N(CC)C=C(C(O)=O)C(=O)C2=CC(F)=C1N1CCNCC1 OGJPXUAPXNRGGI-UHFFFAOYSA-N 0.000 description 11
- 229960001180 norfloxacin Drugs 0.000 description 11
- 229960002180 tetracycline Drugs 0.000 description 11
- 235000019364 tetracycline Nutrition 0.000 description 11
- 229930101283 tetracycline Natural products 0.000 description 11
- 150000003522 tetracyclines Chemical class 0.000 description 11
- 239000004100 Oxytetracycline Substances 0.000 description 10
- IWVCMVBTMGNXQD-PXOLEDIWSA-N oxytetracycline Chemical compound C1=CC=C2[C@](O)(C)[C@H]3[C@H](O)[C@H]4[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-PXOLEDIWSA-N 0.000 description 10
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- 235000019366 oxytetracycline Nutrition 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- IWVCMVBTMGNXQD-UHFFFAOYSA-N terramycin dehydrate Natural products C1=CC=C2C(O)(C)C3C(O)C4C(N(C)C)C(O)=C(C(N)=O)C(=O)C4(O)C(O)=C3C(=O)C2=C1O IWVCMVBTMGNXQD-UHFFFAOYSA-N 0.000 description 10
- 230000003115 biocidal effect Effects 0.000 description 9
- 229910052724 xenon Inorganic materials 0.000 description 8
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 8
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 6
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- 238000007146 photocatalysis Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- KIPLYOUQVMMOHB-MXWBXKMOSA-L [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O Chemical compound [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O KIPLYOUQVMMOHB-MXWBXKMOSA-L 0.000 description 1
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- 238000004043 dyeing Methods 0.000 description 1
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- 229940063650 terramycin Drugs 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/547—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads with optical functions other than colour, e.g. comprising light-emitting fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/30—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/47—Oxides or hydroxides of elements of Groups 5 or 15 of the Periodic Table; Vanadates; Niobates; Tantalates; Arsenates; Antimonates; Bismuthates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention relates to an optical fiber fabric with functions of photocatalytic degradation of antibiotics and dye wastewater and a preparation method thereof. Or weaving the end face luminous fiber with common yarns, and carrying out chemical or physical fixed-point treatment on a specific position to prepare the side fixed-point luminous fabric. And (3) loading a photocatalyst at the luminous position of the fabric to prepare the non-fixed-point or fixed-point photocatalytic fabric. The side fixed-point light-emitting optical fiber is utilized to lead the photocatalyst to carry out fixed-point photocatalytic degradation on antibiotics or dyes in the water body. The invention can solve the problems that the traditional photocatalyst is easy to cause secondary pollution to water and has low catalytic performance caused by poor dispersibility; the degradation of water antibiotics/dyes in a dark environment can be realized; the optical fibers in the fabric containing different photocatalysts are respectively connected with different light sources, so that simultaneous degradation of multiple antibiotics/dyes can be realized, the photocatalytic efficiency is greatly improved, and the application prospect is wide.
Description
Technical Field
The invention belongs to the field of wastewater treatment, and particularly relates to an optical fiber fabric with a function of photocatalytic degradation of antibiotics and dye wastewater and a preparation method thereof.
Background
With the increasing economic activity of human beings, the development of industrial production and the prosperity of social economy, a large amount of industrial wastewater and urban domestic sewage are discharged into a water body while a large amount of energy is consumed, and the water pollution is increasingly serious. Antibiotics are drugs that are widely used in human disease prevention, treatment of bacterial infections, and aquaculture and animal husbandry, but are mostly discharged into the aqueous environment in the form of raw drugs or metabolites during use. Antibiotics in aqueous environments can drive the emergence of antibiotic-resistant bacteria and the accumulation of antibiotic-resistant genes, thereby adversely affecting aquatic life and human health. In addition, in the discharge of various industrial wastewater, the printing and dyeing wastewater is difficult to treat due to large discharge amount, high alkalinity, thick color and large amount of toxic substances which are difficult to degrade, the degradability of the substances is poor, the biological activity is strong, and part of links of the biological chain of an ecosystem can be corroded due to long-term exposure. Therefore, the method has very important research significance for treating the antibiotic and dye wastewater with high efficiency, convenience and low cost.
The photocatalytic water purification treatment technology is a novel technology, can utilize solar energy at room temperature, and can remove organic pollutants which are difficult to degrade in water bodies in an environment-friendly, efficient and rapid manner. Although a large number of photocatalytic materials have been reported for the degradation of antibiotics and dyes in water, these materials have the following problems: (1) the powder is directly used for wastewater treatment, so that not only is secondary pollution of water easily caused (the water is difficult to separate after being treated), but also the catalyst powder is easy to agglomerate, and the poor dispersibility can directly reduce the photocatalytic performance; (2) the photocatalyst can only play a role in photocatalysis under the strong light irradiation of an external light source, so the photocatalyst cannot be applied in dark environment (a sewer, the water bottom or a cloudy day); (3) only 1-2 specific antibiotics or dyes can be degraded in a photocatalytic manner, and actual water samples usually contain a plurality of different types of antibiotics and dyes, so that the actual requirements cannot be met.
Disclosure of Invention
The invention aims to solve the technical problem of providing an optical fiber fabric with the function of photocatalytic degradation of antibiotics and dye wastewater and a preparation method thereof.
The technical scheme for solving the technical problems is as follows:
by containing Bi radicals and TiO2The yarns of the base series of photocatalysts and the finished side light-emitting optical fibers are mixed and woven according to requirements to prepare the non-fixed-point photocatalytic fabric; or common yarns and finished side-face luminescent fibers are mixed and woven according to requirements to prepare the fiber fabric, and then the outer surface of the fiber fabric is loaded with Bi base and TiO2Preparing a non-fixed-point photocatalytic fabric with a side surface emitting light by using a base series of photocatalysts; or by using a compound containing a Bi group and TiO2The base series photocatalyst yarns and the end face luminous fibers are mixed and woven according to requirements to prepare an optical fiber fabric, and a specific position of the optical fiber fabric is treated by a physical or chemical fixed-point treatment method to realize fixed-point side light emission and prepare a fixed-point photocatalytic fabric; or the common yarns and the end face luminous fibers are mixed and woven according to the requirements to prepare the optical fiber fabric through physical or physical weavingThe chemical fixed-point treatment method is used for treating the specific position of the optical fiber fabric to realize the fixed-point luminescence of the side surface, and Bi base and TiO are loaded on the treated fabric2Preparing fixed-point photocatalytic fabrics by using a base series of photocatalysts; or in the presence of Bi radicals and TiO2The non-woven fabric surface of the base series photocatalyst is uniformly fixed with finished side surface luminous fibers or side surface fixed point luminous fibers obtained by the end surface luminous fibers through physical or chemical fixed point treatment, and non-fixed point or fixed point photocatalytic non-woven fabric is prepared.
Further, the Bi-based photocatalyst adopts any one or more of TiO2/Bi2O3, BiVO4/BiOCl, GO/BiOCl, Bi2WO6/BiOCl, Bi3O4Cl/BiOCl, Fe3O4/BiOBr and Au/CdS/BiOCl, and the Bi-based photocatalyst is used for degrading antibiotics; TiO22TiO is adopted as a series of photocatalysts2、Mn-TiO2And Ag6Si2O7/TiO2Any one or more of, TiO2A series of photocatalysts are used for degrading dyes.
Furthermore, when a chemical fixed-point treatment method is adopted, the end face light-emitting optical fiber or the fabric to be treated is subjected to fixed-point corrosion by using a printing, ink-jet printing, spraying or coating method to obtain the side face fixed-point light-emitting optical fiber or the fabric.
Further, when a physical fixed-point processing method is adopted, the position to be processed of the end face light-emitting optical fiber or the fabric is processed by laser or mechanically polished, and the side face fixed-point light-emitting optical fiber or the fabric is obtained.
Further, the compound contains Bi group and TiO2The yarn of the base series photocatalyst is a common yarn which is subjected to after-treatment and loaded with the photocatalyst or a yarn spun by chemical fibers prepared by adding the photocatalyst in the spinning process.
Further, containing Bi groups and TiO2The non-woven fabric of the base series photocatalyst is prepared by carrying out post-treatment on common non-woven fabric to load the photocatalyst or carrying out non-woven processing on photocatalytic fibers.
Furthermore, the photocatalytic optical fiber fabric contains yarns containing the same or different types of photocatalysts, and light of specific types or wavelengths is introduced into different photocatalyst positions, so that the photocatalytic optical fiber fabric is used for broad-spectrum degradation of different antibiotics and dyes.
Further, the mixed weaving according to requirements refers to weaving, so that the finished side light-emitting optical fiber or end light-emitting optical fiber and the photocatalytic yarn are arranged at intervals, adjacent to or contacted with each other.
The optical fiber fabric with the function of photocatalytic degradation of antibiotics and dye wastewater is prepared by the method.
The invention has the beneficial effects that: the invention prepares the fiber with the side surface luminous at fixed point by carrying out fixed point treatment on the end surface luminous fiber by methods such as chemical corrosion, laser treatment or mechanical polishing, and the like, and weaves the fiber with the yarn loaded with the photocatalyst to prepare the fabric with photocatalytic performance. When a specific light source is switched on, the excellent light conduction function and the side light emitting characteristic of the optical fiber are utilized, so that the photocatalyst can perform fixed-point photocatalytic degradation on antibiotics and dyes in the water body. Compared with the traditional photocatalytic degradation material, the functional fabric has the following advantages: (1) the problems that the traditional photocatalyst is easy to cause secondary pollution to water and has low catalytic performance due to poor dispersibility are solved; (2) the degradation of water antibiotics and dyes in dark environment can be realized; (3) the fabric can load different types of photocatalysts, and when the optical fibers are respectively connected with different light sources, simultaneous degradation of multiple antibiotics and dyes can be realized, so that the photocatalytic efficiency of the material is greatly improved, and the fabric has a wider practical application prospect.
Description of the drawings
Fig. 1 is a schematic view of a woven photocatalytic fabric.
The components denoted by the reference numerals in the drawings have the following meanings:
221. an optical fiber; 222. a yarn containing a photocatalyst; 223. a plain yarn; 224. fixed point light-emitting position
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The first embodiment is as follows: the photocatalyst is TiO2/Bi2O3Efficient degradation of tetracycline under visible light conditions
(1) Preparation of Supported photocatalystsAgent TiO2/Bi2O3The weft yarns of (1).
(2) Weaving of fabrics
Designing the fabric texture as plain weave on a loom, drafting with cotton yarn, and arranging the end face light-emitting optical fiber and the TiO-containing fiber2/Bi2O3The yarns are woven in at intervals, and optical fibers need to be left on one side of the fabric for a certain length to extend out of the fabric, so that the end face luminous optical fiber fabric is obtained.
(3) Treatment of optical fibers
And (3) physically polishing the position to be processed of the end face luminous optical fiber fabric to etch the end face luminous optical fiber at the fixed point position, and preparing the side face fixed point luminous optical fiber fabric, namely the fixed point photocatalytic fabric.
(4) Visible light photocatalytic degradation of tetracycline
Under dark conditions, a photocatalytic fabric of dimensions 10cm by 10cm was placed in a beaker containing 1000mL of a 25mg/L tetracycline solution. A250W incandescent lamp is selected as a light source, the two sides of the optical fiber in the fabric are connected with the light source, the distance between the light source and the optical fiber is 15cm, and the solution is continuously stirred. And (4) timing illumination, taking 30mL of samples every 20min, putting the samples into a centrifuge, centrifuging to take supernatant and measuring absorbance. The residual rate of tetracycline is calculated as: eta ═ C/C0×100％＝A/A0X 100%. Wherein: c and C0Respectively represents the mass concentration/(mg. L) of the tetracycline at the time t and the initial tetracycline-1) (ii) a A and A0The absorbance at time t and initial tetracycline, respectively, are indicated. The result shows that the fabric has a tetracycline removal rate of 92.45% after being exposed to visible light for 3 hours in the dark.
Example two: the photocatalyst is BiVO4/BiOCl, and norfloxacin is efficiently degraded under a 150W xenon lamp.
(1) Preparation of BiVO4Weft yarns of/BiOCl.
(2) Weaving of fabric
Designing the fabric weave as plain weave on a loom, drafting with cotton yarn, and arranging the end face luminous fiber and the fiber containing BiVO as shown in figure 14the/BiOCl yarns are woven in at intervals, and the end face light-emitting optical fibers are required to be left at one side of the fabricAnd a certain length of the fiber fabric extends out of the fabric to obtain the fiber fabric with a luminous end face.
(3) Treatment of optical fibers
And coating a chemical reagent on the position to be treated of the optical fiber fabric with a luminous end face at a fixed point, and not coating optical fibers on other positions, so that the luminous end face optical fibers at the coated position are etched to obtain the luminous optical fiber fabric with the side face at the fixed point, namely the fixed-point photocatalytic fabric.
(4) Degradation of norfloxacin by visible light photocatalysis
Under dark conditions, photocatalytic fabrics of dimensions 10cm × 10cm were placed in a beaker containing 1000mL of a 25mg/L norfloxacin solution. A150W xenon lamp is selected as a light source, the light source is introduced into two sides of an optical fiber in the fabric, and the solution is continuously stirred. And (4) timing illumination, taking 30mL of samples every 20min, putting the samples into a centrifuge for centrifugation, taking supernatant and measuring absorbance. The residual rate of norfloxacin is calculated by the formula: eta ═ C/C0×100％＝A/A0X 100%. Wherein: c and C0Respectively represents the mass concentration/(mg. L) of norfloxacin at the time t and the initial time-1) (ii) a A and A0The absorbance at time t and initial norfloxacin are expressed separately. The result shows that the removal rate of norfloxacin of the fabric after being exposed to visible light for 3 hours in the dark is 95.18%.
Example three: the photocatalyst is a GO/BiOCl composite material, and can efficiently degrade oxytetracycline under a 300W xenon lamp
(1) And preparing GO/BiOCl loaded yarns.
(2) Weaving of fabrics
The fabric is designed into a rib weave, the end face luminous optical fiber and the yarn containing the photocatalyst GO/BiOCl are arranged at intervals to prepare the rib weave, and the end face luminous optical fiber fabric is obtained.
(3) Treatment of optical fibers
And printing a chemical reagent loaded on the position to be processed of the end face luminous optical fiber fabric by using a screen, etching the end face luminous optical fiber at the position loaded with the chemical reagent, and preparing the side face fixed point luminous optical fiber fabric, namely the fixed point photocatalytic fabric.
(4) Visible light photocatalytic degradation of oxytetracycline
Shearing a rib fabric with a certain size, removing fibers from two sides, leaving a certain length of optical fibers extending out of the fabric, and putting the photocatalytic fabric into a beaker filled with 1000mL of 25mg/L oxytetracycline solution under dark conditions, wherein the area of the non-removed part is 10cm multiplied by 10 cm. A300W xenon lamp is selected as a light source, the light source is introduced into two sides of an optical fiber in the fabric, the distance between the light source and the optical fiber is 15cm, and the solution is continuously stirred. And (4) timing illumination, taking 30mL of samples every 20min, putting the samples into a centrifuge for centrifugation, taking supernatant and measuring absorbance. The formula for calculating the residual rate of the oxytetracycline is as follows: eta ═ C/C0×100％＝A/A0X 100%. Wherein: c and C0Respectively represents the mass concentration/(mg. L) of the original oxytetracycline at the time t-1) (ii) a A and A0The absorbance at time t and the initial oxytetracycline level are indicated, respectively. The result shows that the removal rate of the terramycin of the fabric after 3 hours of visible light passing through the fabric in the dark is 92.46%.
Example four: after yarns and optical fibers with different loads are made into fabrics, a plurality of antibiotics in a water body are degraded simultaneously
(1) Weaving of fabrics
Different photocatalysts (TiO) are loaded2/Bi2O3、BiVO4/BiOCl and GO/BiOCl) with end face light emitting fibers. Designing the fabric weave to be plain weave on a loom, drafting with cotton yarn, as shown in figure 1, and arranging the end face luminous fiber and the fiber containing TiO2/Bi2O3、BiVO4The yarns of the/BiOCl and GO/BiOCl photocatalysts are woven in a segmented mode at intervals, and optical fibers need to be left at one side of the fabric for a certain length to extend out of the fabric, so that the optical fiber fabric with the luminous end face is obtained.
(2) Treatment of optical fibers
And (3) ink-jet printing chemical reagents on the position to be processed of the end face luminous optical fiber fabric, etching the end face luminous optical fiber at the ink-jet printing position, and preparing the side face fixed-point luminous optical fiber fabric, namely the fixed-point photocatalytic fabric.
(3) Simultaneous degradation of multiple antibiotics in water
Under dark condition, taking a photocatalytic fabric with the size of 10cm multiplied by 10cm, and placing the photocatalytic fabric into the photocatalytic fabric1000mL of a beaker containing a mixed solution of tetracycline, norfloxacin and oxytetracycline, each at a mass concentration of 25 mg/L. The optical fibers loaded with different catalysts respectively select corresponding light sources (the photocatalyst is TiO)2/Bi2O3Selecting a 250W incandescent lamp as a light source; BiVO4BiOCl, using a 150W xenon lamp as a light source; GO/BiOCl, 300W xenon lamp as light source), connecting the optical fiber in the fabric with the light source, the distance between the light source and the light source is 15cm, and continuously stirring the solution. And (4) timing illumination, taking 30mL of samples every 20min, putting the samples into a centrifuge, centrifuging to take supernatant and measuring absorbance. The residual rate of each antibiotic is calculated by the following formula: eta ═ C/C0×100％＝A/A0X 100%. Wherein: c and C0Respectively represents the mass concentration/(mg. L) of the initial antibiotic at the time t-1) (ii) a A and A0Respectively, the absorbance at time t and the initial antibiotic. The result shows that after visible light is introduced into the fabric for 3 hours in the dark, the removal rates of tetracycline, norfloxacin and oxytetracycline are respectively 84.20%, 85.17% and 81.42%, that is to say, the functional fabric can simultaneously realize the high-efficiency degradation of multiple antibiotics.
Example five: the photocatalyst is nano anatase TiO2Efficiently degrading methylene blue dye under a 300W ultraviolet lamp;
(1) preparation of photocatalytic fibers
Preparing the photocatalytic master batch: drying nano anatase TiO2Mixing with PET slice to obtain nanometer anatase TiO2Master batch, nano anatase TiO2TiO in mother particle2The content of (A) is 20%;
preparing the photocatalytic fiber: taking 96 parts of PET granules and nano anatase TiO24 parts of master batch are uniformly mixed to obtain a mixture. And (3) sending the mixture to a dryer for pre-crystallization and drying, wherein the pre-crystallization temperature is controlled at 160 ℃, the drying temperature is 175 ℃, and the water content is reduced to 0.01% after drying. The dried mixture is continuously fed into a hopper of a screw extruder by hot air. The melt is melted and extruded by a screw extruder to form a melt, the melt is extruded by a spinneret plate after passing through a metering pump, the temperature of each area of the screw is controlled to be 290-plus-300 ℃ during spinning, and the temperature of a spinning box body is controlled to be 260-plus-285 ℃. Spinning machineCooling, bundling, oiling, intermittently bundling, two-stage stretching, heat setting, and cutting to obtain 38mm nanometer anatase TiO-containing material2The PET staple fiber of (1). The temperature of circular blowing is 30 +/-2 ℃, the humidity of cooling air is 70-80%, the spinning speed is 1700m/min, the first-stage drawing temperature is 80 ℃, the second-stage drawing temperature is 160 ℃, and the total drawing multiple is 4.0.
(2) Preparation of photocatalytic non-woven fabric
Will contain nano anatase TiO2The PET short fiber and the low-melting-point fiber are mixed according to the weight ratio of 80:20, are subjected to opening, carding and lapping, are compounded with the unwound finished side-face luminescent fiber for lapping, and are sent to a drying room for heat treatment at 120 ℃ for 5min to prepare the PET short fiber containing nano anatase TiO2Photocatalyst non-woven fabric.
(3) Ultraviolet photocatalytic methylene dye wastewater
Under dark conditions, a 10cm × 10cm photocatalytic nonwoven fabric was placed in a beaker containing 1000mL of a 25mg/L methylene blue solution. And (3) selecting a 300W ultraviolet lamp light source, connecting the two sides of the optical fibers in the non-woven fabric with the light source, and continuously stirring the solution. And (4) timing illumination, taking 30mL of samples every 20min, putting the samples into a centrifuge, centrifuging to take supernatant and measuring absorbance. The residual rate of the dye methylene blue is calculated by the following formula: eta ═ C/C0×100％＝A/A0X 100%. Wherein: c and C0Respectively represents the t time and the mass concentration/(mg. L) of the initial dye-1) (ii) a A and A0Respectively, the absorbance at time t and the initial dye. The result shows that the removal rate of the methylene blue dye of the non-woven fabric after the non-woven fabric is introduced with ultraviolet light for 3 hours in the dark is 85.12 percent.
Example six: after yarns loaded with different catalysts and optical fibers are woven into fabrics, a plurality of antibiotics and dyes in a water body are degraded simultaneously
(1) Weaving of fabrics
Different photocatalysts (TiO) are loaded2/Bi2O3、BiVO4/BiOCl, GO/BiOCl and TiO2) The yarns are woven with the end face light-emitting optical fibers in sequence. The fabric weave is designed to be plain weave on a loom, and common yarns are usedThe thread 223 is woven into the fabric at intervals, as shown in fig. 1, with the end-face light-emitting optical fiber 221 and the yarn 222 containing the photocatalyst, leaving a certain length of the optical fiber on one side of the fabric to extend out of the fabric, to obtain an end-face light-emitting optical fiber fabric.
(2) Treatment of optical fibers
And ink-jet printing chemical reagents on the position to be processed of the end face luminous optical fiber fabric, so that the end face luminous optical fiber at the ink-jet printing position is etched to obtain the side face fixed-point luminous optical fiber fabric, namely the fixed-point photocatalytic fabric and the fixed-point luminous position 224.
(3) Simultaneous degradation of multiple antibiotics and dyes in water
Under dark conditions, a photocatalytic fabric with the size of 10cm multiplied by 10cm is put into a beaker filled with 1000mL of mixed solution with the mass concentration of 25mg/L of tetracycline, norfloxacin, oxytetracycline and methylene blue. The optical fibers loaded with different catalysts respectively select corresponding light sources (the photocatalyst is TiO)2/Bi2O3Selecting a 250W incandescent lamp as a light source; BiVO4BiOCl, using a 150W xenon lamp as a light source; GO/BiOCl, 300W xenon lamp as light source; TiO22And selecting a 300W ultraviolet lamp as a light source), connecting the two sides of the optical fiber in the fabric with the light source at a distance of 15cm, and continuously stirring the solution. And (4) timing illumination, taking 30mL samples every 20min, putting the samples into a centrifuge, centrifuging to take supernatant and measuring absorbance. The residual rate of each antibiotic is calculated by the following formula: eta ═ C/C0×100％＝A/A0X 100%. Wherein: c and C0Respectively represents the mass concentration/(mg. L) of the initial antibiotic at the time t-1) (ii) a A and A0Respectively, the absorbance at time t and the initial antibiotic. The result shows that after visible light is introduced into the fabric for 3 hours in the dark, the removal rates of tetracycline, norfloxacin, oxytetracycline and methylene blue are respectively 84.20%, 85.17%, 81.42% and 80.14%, namely the functional fabric can simultaneously realize the high-efficiency degradation of multiple antibiotics and dyes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The preparation method of the optical fiber fabric with the function of photocatalytic degradation of antibiotics and dye wastewater is characterized in that Bi-containing radical and TiO are utilized2The yarns of the base series of photocatalysts and the finished side light-emitting optical fibers are mixed and woven according to requirements to prepare the non-fixed-point photocatalytic fabric; or common yarns and finished side-face luminescent fibers are mixed and woven according to requirements to prepare the fiber fabric, and then the outer surface of the fiber fabric is loaded with Bi base and TiO2Preparing a non-fixed-point photocatalytic fabric with a side surface emitting light by using a base series of photocatalysts; or by using a compound containing a Bi group and TiO2The base series photocatalyst yarns and the end face luminous fibers are mixed and woven according to requirements to prepare an optical fiber fabric, and a specific position of the optical fiber fabric is treated by a physical or chemical fixed-point treatment method to realize fixed-point side light emission and prepare a fixed-point photocatalytic fabric; or common yarns and the end face luminous fibers are mixed and woven according to requirements to prepare the optical fiber fabric, the specific position of the optical fiber fabric is treated by a physical or chemical fixed-point treatment method to realize the fixed-point side light emission, and Bi base and TiO are loaded on the treated fabric2Preparing fixed-point photocatalytic fabrics by using a base series of photocatalysts; or in the presence of Bi radicals and TiO2The non-woven fabric surface of the base series photocatalyst is uniformly fixed with finished side surface luminous fibers or side surface fixed point luminous fibers obtained by the end surface luminous fibers through physical or chemical fixed point treatment, and non-fixed point or fixed point photocatalytic non-woven fabric is prepared.
2. The method for preparing optical fiber fabric with function of photocatalytic degradation of antibiotics and dye wastewater as claimed in claim 1, wherein the Bi-based photocatalyst is TiO2/Bi2O3、BiVO4/BiOCl、GO/BiOCl、Bi2WO6/BiOCl、Bi3O4Cl/BiOCl、Fe3O4Any one or more of/BiOBr and Au/CdS/BiOCl, wherein the Bi-based photocatalyst is used for degrading antibiotics; TiO22TiO is adopted as a series of photocatalysts2、Mn-TiO2And Ag6Si2O7/TiO2Any one or more of, TiO2A series of photocatalysts are used for degrading dyes. .
3. The method for preparing the optical fiber fabric with the function of photocatalytic degradation of antibiotics and dye wastewater according to claim 1, wherein when a chemical fixed-point treatment method is adopted, the end face light-emitting optical fiber or the fabric to be treated is subjected to fixed-point corrosion by using a printing, ink-jet printing, spraying or coating method to obtain the side face fixed-point light-emitting optical fiber or the fabric.
4. The preparation method of the optical fiber fabric with the function of photocatalytic degradation of antibiotics and dye wastewater according to claim 1, characterized in that when a physical fixed-point treatment method is adopted, the position to be treated of the end face light-emitting optical fiber or fabric is treated by laser or mechanically polished to obtain the side face fixed-point light-emitting optical fiber or fabric.
5. The method for preparing the optical fiber fabric with the function of photocatalytic degradation of antibiotics and dye wastewater according to claim 1, wherein the optical fiber fabric contains Bi groups and TiO groups2The yarn of the base series photocatalyst is a common yarn which is subjected to after-treatment and loaded with the photocatalyst or a yarn spun by chemical fibers prepared by adding the photocatalyst in the spinning process.
6. The method for preparing the optical fiber fabric with the function of photocatalytic degradation of antibiotics and dye wastewater according to claim 1, wherein the optical fiber fabric contains Bi groups and TiO groups2The non-woven fabric of the base series photocatalyst is prepared by carrying out post-treatment on common non-woven fabric to load the photocatalyst or carrying out non-woven processing on photocatalytic fibers.
7. The method for preparing an optical fiber fabric with the function of photocatalytic degradation of antibiotics and dye wastewater according to claim 1, wherein the photocatalytic optical fiber fabric contains yarns of the same or different types of photocatalysts, and light of specific types or wavelengths is introduced into different photocatalyst positions for broad-spectrum degradation of different antibiotics and dyes.
8. The method for preparing the optical fiber fabric with the functions of photocatalytic degradation of antibiotics and dye wastewater according to claim 1, wherein the mixed weaving according to the requirement is that the finished side light-emitting optical fiber or end light-emitting optical fiber and the photocatalytic yarn are arranged at intervals, adjacent or contacted during weaving.
9. Optical fiber fabric with photocatalytic degradation of antibiotics and dye wastewater, characterized by being prepared by the method of any one of claims 1-8.
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| US20100029157A1 (en) * | 2006-12-20 | 2010-02-04 | Brochier Technologies | Fabric web having photocatalysis-based pollution control properties |
| DE102009044926A1 (en) * | 2009-09-23 | 2011-03-31 | Schott Ag | Photocatalyst device, useful for photocatalytic decomposition of organic substances, comprises a light-guiding element and a photocatalytic substance (comprising e.g. nitrogen-doped titanium dioxide) arranged on the light-guiding element |
| CN110373787A (en) * | 2018-04-12 | 2019-10-25 | 江南大学 | A kind of fabric and preparation method thereof |
| FR3098811A1 (en) * | 2019-07-17 | 2021-01-22 | IFP Energies Nouvelles | PHOTORACTOR INCLUDING A PHOTOCATALYTIC TEXTILE PROVIDED WITH OPTICAL FIBERS |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100029157A1 (en) * | 2006-12-20 | 2010-02-04 | Brochier Technologies | Fabric web having photocatalysis-based pollution control properties |
| DE102009044926A1 (en) * | 2009-09-23 | 2011-03-31 | Schott Ag | Photocatalyst device, useful for photocatalytic decomposition of organic substances, comprises a light-guiding element and a photocatalytic substance (comprising e.g. nitrogen-doped titanium dioxide) arranged on the light-guiding element |
| CN110373787A (en) * | 2018-04-12 | 2019-10-25 | 江南大学 | A kind of fabric and preparation method thereof |
| FR3098811A1 (en) * | 2019-07-17 | 2021-01-22 | IFP Energies Nouvelles | PHOTORACTOR INCLUDING A PHOTOCATALYTIC TEXTILE PROVIDED WITH OPTICAL FIBERS |
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