CN106391061A - Preparation method of high-performance BiOCl/BiOBr photocatalytic material - Google Patents

Preparation method of high-performance BiOCl/BiOBr photocatalytic material Download PDF

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Publication number
CN106391061A
CN106391061A CN201610834479.8A CN201610834479A CN106391061A CN 106391061 A CN106391061 A CN 106391061A CN 201610834479 A CN201610834479 A CN 201610834479A CN 106391061 A CN106391061 A CN 106391061A
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CN
China
Prior art keywords
solution
biocl
photocatalyst
biobr
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610834479.8A
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Chinese (zh)
Inventor
张淑娟
杨金凤
宋立民
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Tianjin University of Science and Technology
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Tianjin University of Science and Technology
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Application filed by Tianjin University of Science and Technology filed Critical Tianjin University of Science and Technology
Priority to CN201610834479.8A priority Critical patent/CN106391061A/en
Publication of CN106391061A publication Critical patent/CN106391061A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06Halogens; Compounds thereof
    • B01J35/39
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/10Photocatalysts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The invention relates to preparation of a BiOCl/BiOBr photocatalyst, and belongs to the field of inorganic photocatalytic materials. The BiOCl/BiOBr photocatalyst is prepared with CTAC and CTAB as experimental raw materials and by a microwave method. The photocatalyst is applied in organic pollutants in water. The prepared BiOCl/BiOBr composite photocatalyst has the photocatalytic activity in a relatively wide wavelength range, and has good industrial application prospects.

Description

A kind of preparation method of high-performance BiOCl/BiOBr catalysis material
Technical field
The present invention relates to a kind of photocatalyst.
The invention still further relates to the preparation method of above-mentioned catalyst.
The invention still further relates to photocatalysis degradation organic contaminant technical field.
Background technology
Since in recent years, environmental problem has become as the significant problem that the mankind are faced.With titanium dioxide as representative half Conductor catalysis material has the advantages that low cost, good stability, becomes the study hotspot of photocatalysis field, can be widely applied to Sewage disposal.But, the energy gap of titanium dioxide is larger, only utilizes the ultraviolet light in sunlight, and the most sun Light energy is all distributed in visible region.Therefore, how effectively to make full use of solar energy to curb environmental pollution increasingly by people Attention.In the preparation method of conductor photocatalysis material, it is employed in this area research current using hydro-thermal method Main method.But the method preparation time length and being easy in preparation process due to being heated inequality and producing impurity, defect etc.. Therefore, urgently seek a kind of simply time-consuming few photocatalyst preparation method.
Content of the invention
Present invention aims to the band gap of BiOCl photocatalyst proposes one kind not only can more fully utilize too Sun energy, and can solve the problem that the preparation method of problem of environmental pollution BiOCl/BiOBr composite photo-catalyst.
Meaning of the present invention is to provide a kind of efficient BiOCl/BiOBr photocatalyst, can keep good stablizing Property and higher catalysis activity, simultaneously preparation method simple, time-consuming less, low cost.
The preparation method of the BiOCl/BiOBr photocatalyst that the present invention provides is as follows:
A certain amount of hexadecyltrimethylammonium chloride (CTAC) is dissolved in ethylene glycol (solution 1);By a certain amount of ten Six alkyl trimethyl ammonium bromides (CTAB) are dissolved in ethylene glycol (solution 2);A certain amount of bismuth nitrate is dissolved in (solution in ethylene glycol 3);Then respectively solution 1 and solution 2 are slowly dropped in solution three, after continuing stirring a period of time, put into microwave reactor In 10 minutes power be 200W.After cooling, the pelleting centrifugation that will produce, uses distilled water and absolute ethanol washing, then successively 60 DEG C of vacuum drying obtain corresponding BiOCl/BiOBr photocatalyst.
Under visible radiation, the photocatalytic activity test concrete grammar of rhodamine B degradation and condition are as follows:
The Photocatalytic oxidation activity of catalyst is to carry out in homemade photo catalysis reactor.Reaction condition is:Room temperature is normal Pressure, 300W xenon lamp (λ > 420nm) is radiating light source, and reactant liquor is the rhodamine B aqueous solution of 200mL 20mg/L, and catalyst adds Entering amount is 0.2g.Blast oxygen in reactor bottom.Every 10min sample analysis under violent stirring, divided with ultraviolet-visible The conversion ratio of light photometric measurement rhodamine B.
Specific embodiments
Embodiment 1
0.32g CTAC is dissolved in 50mL ethylene glycol (solution 1);1.82g CTAB is dissolved in (solution in 50mL ethylene glycol 2);Cl/Br mol ratio is made to be 1: 5.Then respectively solution 1 and solution 2 are slowly dropped to the second two containing 2.91g bismuth nitrate Alcoholic solution, continues stirring 1 hour, and being then placed in 10min power in microwave reactor is 200W.After cooling, heavy by produce Form sediment and be centrifuged, use distilled water and absolute ethanol washing successively, then 60 DEG C of vacuum drying obtain corresponding catalyst.
Embodiment 2
It is 1: 1 that Cl/Br mol ratio in embodiment 1 is changed to Cl/Br mol ratio for 1: 5, and other conditions are constant.
Embodiment 3
It is 1: 2.5 that Cl/Br mol ratio in embodiment 1 is changed to Cl/Br mol ratio for 1: 5, and other conditions are constant.
Embodiment 4
It is 1: 7.5 that Cl/Br mol ratio in embodiment 1 is changed to Cl/Br mol ratio for 1: 5, and other conditions are constant.
Embodiment 5
It is 1: 10 that Cl/Br mol ratio in embodiment 1 is changed to Cl/Br mol ratio for 1: 5, and other conditions are constant.
It is pure that the medicine and reagent mentioned in embodiments above is analysis.
Photocatalyst obtained by the present invention can be carried on carrier, the invention is not restricted to embodiments above.

Claims (2)

1.BiOCl/BiOBr photocatalyst is it is characterised in that include following synthesis step:
A certain amount of hexadecyltrimethylammonium chloride (CTAC) is dissolved in ethylene glycol (solution 1), by a certain amount of hexadecane Base trimethylammonium bromide (CTAB) is dissolved in ethylene glycol (solution 2), and a certain amount of bismuth nitrate is dissolved in ethylene glycol (solution 3), Then respectively solution 1 and solution 2 are slowly dropped in solution three, after continuing stirring a period of time, put in microwave reactor 10 minutes power is 200W, after cooling, the pelleting centrifugation that will produce, use distilled water and absolute ethanol washing successively, then 60 DEG C vacuum drying obtains corresponding BiOCl/BiOBr photocatalyst.
2. three kinds of photocatalysts according to claim 1 are it is characterised in that being capable of rhodamine B degradation solution under the radiation of light.
CN201610834479.8A 2016-09-13 2016-09-13 Preparation method of high-performance BiOCl/BiOBr photocatalytic material Pending CN106391061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610834479.8A CN106391061A (en) 2016-09-13 2016-09-13 Preparation method of high-performance BiOCl/BiOBr photocatalytic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610834479.8A CN106391061A (en) 2016-09-13 2016-09-13 Preparation method of high-performance BiOCl/BiOBr photocatalytic material

Publications (1)

Publication Number Publication Date
CN106391061A true CN106391061A (en) 2017-02-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106966429A (en) * 2017-03-24 2017-07-21 许昌学院 A kind of preparation method of n-type optoelectronic thin film material
CN107021458A (en) * 2017-04-01 2017-08-08 河南师范大学 A kind of preparation method of black BiOBr dusty materials
CN109158116A (en) * 2018-07-24 2019-01-08 南昌航空大学 The method and its application in degradation antibiotic that one kettle way in-situ reducing prepares Bi/BiOBr/rGO photochemical catalyst
CN114870873A (en) * 2022-04-20 2022-08-09 南昌航空大学 Method for constructing surface defect photocatalytic material by ion exchange

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106966429A (en) * 2017-03-24 2017-07-21 许昌学院 A kind of preparation method of n-type optoelectronic thin film material
CN107021458A (en) * 2017-04-01 2017-08-08 河南师范大学 A kind of preparation method of black BiOBr dusty materials
CN107021458B (en) * 2017-04-01 2019-03-12 河南师范大学 A kind of preparation method of black BiOBr dusty material
CN109158116A (en) * 2018-07-24 2019-01-08 南昌航空大学 The method and its application in degradation antibiotic that one kettle way in-situ reducing prepares Bi/BiOBr/rGO photochemical catalyst
CN114870873A (en) * 2022-04-20 2022-08-09 南昌航空大学 Method for constructing surface defect photocatalytic material by ion exchange

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Application publication date: 20170215

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