CN105797705A - Preparation method of lightweight efficient load-type photocatalyst for air purifier - Google Patents
Preparation method of lightweight efficient load-type photocatalyst for air purifier Download PDFInfo
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- CN105797705A CN105797705A CN201410825774.8A CN201410825774A CN105797705A CN 105797705 A CN105797705 A CN 105797705A CN 201410825774 A CN201410825774 A CN 201410825774A CN 105797705 A CN105797705 A CN 105797705A
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Abstract
The present invention provides a preparation method of a lightweight efficient load-type photocatalyst for an air purifier. A lightweight carrier impregnates a photocatalyst hydrosol to prepare the lightweight load-type photocatalyst with high photocatalytic efficiency; and the preparation process is simple. The lightweight carrier is one of hollow glass beads, vitrified beads and zeolite; the photocatalyst hydrosol uses inexpensive industrial titanium salt as the main raw material, which is low in cost; and rare earth ions doping improves the photocatalytic performance of the nanometer titanium dioxide photocatalyst. The load-type photocatalyst can be applied to air purifier.
Description
Technical field
The invention belongs to photocatalyst material preparation field, the preparation method relating to a kind of efficient and light weight support type photocatalyst for air purifier.
Background technology
Nano-TiO2Photocatalysis technology has been applied to air purification field, has the advantages such as efficient, energy-saving and environmental protection, current nano-TiO2There are some problems, one is that light utilization efficiency is relatively low, due to TiO2Energy gap width, the ultraviolet that only energy is higher just can excite its photocatalytic activity, causes that light utilization efficiency is relatively low, adopts doping techniques can improve its light utilization efficiency；Two is current nano-TiO2Mostly photocatalyst is colloidal sol, adopts direct spraying technique to be sprayed on the photocatalysis parts of air cleaner, it is achieved photocatalysis effect, and the photocatalyst of other form is less, for instance solid type, support type etc..Loaded photocatalyst refers to nano-TiO2The composite photo-catalyst that photocatalyst is made on other carrier, can be applicable to be fabricated to solid photocatalysts assembly in air cleaner, compared to the photo-catalyst film of spraying application, its photocatalysis efficiency is higher, persistent period is longer, has good application prospect.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, the preparation method that a kind of efficient and light weight support type photocatalyst for air purifier is provided, this preparation method technique is simple, and the feature that the support type photocatalyst of preparation has lightweight, photocatalysis efficiency is high can be applicable to air purifier.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The preparation method of a kind of efficient and light weight support type photocatalyst for air purifier, it is characterised in that comprise the following steps:
(1) light carrier pretreatment: light carrier is added in the sodium hydrate aqueous solution of 0.2M concentration, ultrasonic 10min, impregnate 1h at 80 DEG C, filter, dry, stand-by；
(2) preparation of the efficiency light catalyst hydrosol: be dissolved in by titanyl sulfate in deionized water and prepare titanium salt aqueous solution, is dissolved in rare earth sulfate in deionized water and prepares rare earth ion aqueous solution；By titanium salt aqueous solution and rare earth ion aqueous solution, the ratio of its Rare Earth Ion and the amount of substance of titanium is 0.1～1:100, then in mixed solution, it is slowly added dropwise ammonia, forms muddy colloidal solution, through vacuum filtration, repeatedly washing and sucking filtration, obtain paste, therewith paste is re-dispersed in deionized water, is slowly added dropwise hydrogen peroxide wherein after high speed dispersion is uniform, obtains yellow muddiness suspension, eventually pass 110 DEG C of heat treatment 8h, obtain the efficiency light catalyst hydrosol；
(3) preparation of support type photocatalyst: light carrier is immersed in the efficiency light catalyst hydrosol, ultrasonic immersing 1min, filter, dry at 80 DEG C, then 2 ultrasonic immersing-filtration-drying operations are carried out again, finally move in Muffle furnace, with 400～600 DEG C at fire 4～8h, prepare support type photocatalyst.
Preferably, described light carrier is the one of hollow glass micropearl, glass bead, zeolite.
Preferably, described rare earth sulfate is one or both mixture of europium nitrate, Yttrium trinitrate, cerous nitrate, Lanthanum (III) nitrate.
Beneficial effects of the present invention has:
(1) preparation method that the invention provides a kind of support type photocatalyst, adopts the light carrier dipping efficiency light catalyst hydrosol, and preparation lightweight, the support type photocatalyst that photocatalysis efficiency is high, preparation method technique is simple；
(2) Photocatalyst water colloidal sol of the present invention adopts cheap industrial titanium salt to be primary raw material, less costly, and by rare earth ion doped, improves nano-TiO2The photocatalysis performance of photocatalyst；
(3) support type photocatalyst of the present invention can be applicable to air purifier.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
The preparation method of a kind of efficient and light weight support type photocatalyst for air purifier, comprises the following steps:
(1) light carrier pretreatment: hollow glass micropearl carrier is added in the sodium hydrate aqueous solution of 0.2M concentration, ultrasonic 10min, impregnate 1h at 80 DEG C, filter, dry, stand-by；
(2) preparation of the efficiency light catalyst hydrosol: be dissolved in by titanyl sulfate in deionized water and prepare titanium salt aqueous solution, is dissolved in europium sulfate in deionized water and prepares europium ion aqueous solution；By titanium salt aqueous solution and europium ion aqueous solution, wherein europium ion is 0.2:100 with the ratio of the amount of substance of titanium, then in mixed solution, it is slowly added dropwise ammonia, forms muddy colloidal solution, through vacuum filtration, repeatedly washing and sucking filtration, obtain paste, therewith paste is re-dispersed in deionized water, is slowly added dropwise hydrogen peroxide wherein after high speed dispersion is uniform, obtains yellow muddiness suspension, eventually pass 110 DEG C of heat treatment 8h, obtain the efficiency light catalyst hydrosol；
(3) preparation of support type photocatalyst: hollow glass micropearl carrier is immersed in the efficiency light catalyst hydrosol, ultrasonic immersing 1min, filter, dry at 80 DEG C, then 2 ultrasonic immersing-filtration-drying operations are carried out again, finally move in Muffle furnace, with 450 DEG C at fire 6.5h, prepare the support type photocatalyst being carrier with hollow glass micropearl.
Embodiment 2
The preparation method of a kind of efficient and light weight support type photocatalyst for air purifier, comprises the following steps:
(1) light carrier pretreatment: glass bead carrier is added in the sodium hydrate aqueous solution of 0.2M concentration, ultrasonic 10min, impregnate 1h at 80 DEG C, filter, dry, stand-by；
(2) preparation of the efficiency light catalyst hydrosol: be dissolved in by titanyl sulfate in deionized water and prepare titanium salt aqueous solution, is dissolved in Yttrium sesquisulfate in deionized water and prepares ruthenium ion aqueous solution；By titanium salt aqueous solution and ruthenium ion aqueous solution, wherein ruthenium ion is 0.5:100 with the ratio of the amount of substance of titanium, then in mixed solution, it is slowly added dropwise ammonia, forms muddy colloidal solution, through vacuum filtration, repeatedly washing and sucking filtration, obtain paste, therewith paste is re-dispersed in deionized water, is slowly added dropwise hydrogen peroxide wherein after high speed dispersion is uniform, obtains yellow muddiness suspension, eventually pass 110 DEG C of heat treatment 8h, obtain the efficiency light catalyst hydrosol；
(3) preparation of support type photocatalyst: glass bead carrier is immersed in the efficiency light catalyst hydrosol; ultrasonic immersing 1min; filter; dry at 80 DEG C; then 2 ultrasonic immersing-filtration-drying operations are carried out again; finally move in Muffle furnace, with 500 DEG C at fire 4h, prepare the support type photocatalyst being carrier with glass bead.
Embodiment 3
The preparation method of a kind of efficient and light weight support type photocatalyst for air purifier, comprises the following steps:
(1) light carrier pretreatment: Zeolite support is added in the sodium hydrate aqueous solution of 0.2M concentration, ultrasonic 10min, impregnate 1h at 80 DEG C, filter, dry, stand-by；
(2) preparation of the efficiency light catalyst hydrosol: be dissolved in by titanyl sulfate in deionized water and prepare titanium salt aqueous solution, is dissolved in cerous nitrate and Lanthanum (III) nitrate in deionized water and prepares rare earth ion aqueous solution；By titanium salt aqueous solution and rare earth ion aqueous solution, wherein cerium ion, lanthanum ion and the amount of substance of titanium ratio be 0.8:0.2:100, then in mixed solution, it is slowly added dropwise ammonia, form muddy colloidal solution, through vacuum filtration, repeatedly washing and sucking filtration, obtain paste, therewith paste is re-dispersed in deionized water, hydrogen peroxide it is slowly added dropwise wherein after high speed dispersion is uniform, obtain yellow muddiness suspension, eventually pass 110 DEG C of heat treatment 8h, obtain the efficiency light catalyst hydrosol；
(3) preparation of support type photocatalyst: Zeolite support is immersed in the efficiency light catalyst hydrosol, ultrasonic immersing 1min, filter, dry at 80 DEG C, then 2 ultrasonic immersing-filtration-drying operations are carried out again, finally move in Muffle furnace, with 600 DEG C at fire 8h, prepare the support type photocatalyst being carrier with zeolite.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equal replacement and improvement etc. made within the spirit and principles in the present invention, all should drop within protection scope of the present invention.
Claims (3)
1. the preparation method for the efficient and light weight support type photocatalyst of air purifier, it is characterised in that comprise the following steps:
(1) light carrier pretreatment: light carrier is added in the sodium hydrate aqueous solution of 0.2M concentration, ultrasonic 10min, impregnate 1h at 80 DEG C, filter, dry, stand-by；
(2) preparation of the efficiency light catalyst hydrosol: be dissolved in by titanyl sulfate in deionized water and prepare titanium salt aqueous solution, is dissolved in rare earth sulfate in deionized water and prepares rare earth ion aqueous solution；By titanium salt aqueous solution and rare earth ion aqueous solution, the ratio of its Rare Earth Ion and the amount of substance of titanium is 0.1～1:100, then in mixed solution, it is slowly added dropwise ammonia, forms muddy colloidal solution, through vacuum filtration, repeatedly washing and sucking filtration, obtain paste, therewith paste is re-dispersed in deionized water, is slowly added dropwise hydrogen peroxide wherein after high speed dispersion is uniform, obtains yellow muddiness suspension, eventually pass 110 DEG C of heat treatment 8h, obtain the efficiency light catalyst hydrosol；
(3) preparation of support type photocatalyst: light carrier is immersed in the efficiency light catalyst hydrosol, ultrasonic immersing 1min, filter, dry at 80 DEG C, then 2 ultrasonic immersing-filtration-drying operations are carried out again, finally move in Muffle furnace, with 400～600 DEG C at fire 4～8h, prepare support type photocatalyst.
2. the preparation method of the efficient and light weight support type photocatalyst for air purifier according to claim 1, it is characterised in that described light carrier is the one of hollow glass micropearl, glass bead, zeolite.
3. the preparation method of the efficient and light weight support type photocatalyst for air purifier according to claim 1, it is characterised in that described rare earth sulfate is one or both mixture of europium nitrate, Yttrium trinitrate, cerous nitrate, Lanthanum (III) nitrate.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107158965A (en) * | 2017-06-12 | 2017-09-15 | 四川建源节能科技有限公司 | A kind of air filting material |
| CN107694551A (en) * | 2017-11-10 | 2018-02-16 | 伦慧东 | The preparation technology of the inorganic microspheroidal particles of surface uniform location titanium dioxide |
| CN108201889A (en) * | 2016-12-17 | 2018-06-26 | 天津发洋环保科技有限公司 | It is a kind of using porous ceramics as the photocatalyst air purifying material of carrier |
| CN108201888A (en) * | 2016-12-17 | 2018-06-26 | 天津发洋环保科技有限公司 | A kind of preparation method of rare earth-doped titanium dioxide Photocatalyst water colloidal sol |
| CN109225181A (en) * | 2018-08-10 | 2019-01-18 | 江苏大学 | A kind of hollow boron glass microballoon@TiO2The preparation method and its usage of catalyst |
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| JP2014024041A (en) * | 2012-07-30 | 2014-02-06 | National Institute Of Advanced Industrial & Technology | METHOD FOR PRODUCING TiO2 COMPOSITE POROUS SILICA PHOTOCATALYST PARTICLE AND TiO2 COMPOSITE POROUS SILICA PHOTOCATALYST PARTICLE |
| CN103861578A (en) * | 2012-12-17 | 2014-06-18 | 天津发洋环保科技有限公司 | Rare earth doped nanometer TiO2 photocatalyst emulsion |
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Patent Citations (2)
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| JP2014024041A (en) * | 2012-07-30 | 2014-02-06 | National Institute Of Advanced Industrial & Technology | METHOD FOR PRODUCING TiO2 COMPOSITE POROUS SILICA PHOTOCATALYST PARTICLE AND TiO2 COMPOSITE POROUS SILICA PHOTOCATALYST PARTICLE |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108201889A (en) * | 2016-12-17 | 2018-06-26 | 天津发洋环保科技有限公司 | It is a kind of using porous ceramics as the photocatalyst air purifying material of carrier |
| CN108201888A (en) * | 2016-12-17 | 2018-06-26 | 天津发洋环保科技有限公司 | A kind of preparation method of rare earth-doped titanium dioxide Photocatalyst water colloidal sol |
| CN107158965A (en) * | 2017-06-12 | 2017-09-15 | 四川建源节能科技有限公司 | A kind of air filting material |
| CN107694551A (en) * | 2017-11-10 | 2018-02-16 | 伦慧东 | The preparation technology of the inorganic microspheroidal particles of surface uniform location titanium dioxide |
| CN107694551B (en) * | 2017-11-10 | 2020-06-30 | 伦慧东 | Preparation process of inorganic microsphere particles with uniformly positioned titanium dioxide on surface |
| CN109225181A (en) * | 2018-08-10 | 2019-01-18 | 江苏大学 | A kind of hollow boron glass microballoon@TiO2The preparation method and its usage of catalyst |
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