CN110227502A - A kind of method that one step of room temperature prepares the colored hetero-junctions of bismuthyl chloride/bismuth sulfide nano - Google Patents

A kind of method that one step of room temperature prepares the colored hetero-junctions of bismuthyl chloride/bismuth sulfide nano Download PDF

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CN110227502A
CN110227502A CN201910501138.2A CN201910501138A CN110227502A CN 110227502 A CN110227502 A CN 110227502A CN 201910501138 A CN201910501138 A CN 201910501138A CN 110227502 A CN110227502 A CN 110227502A
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room temperature
bismuth
hetero
nano flower
biocl
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刘娟娟
邹世辉
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Hangzhou Dianzi University
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Hangzhou Dianzi University
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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
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/38Organic compounds containing nitrogen
    • 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

Abstract

The invention discloses a kind of one steps of room temperature to prepare bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method.BiOCl/Bi disclosed in this invention2S3The preparation process of nano flower heterojunction photocatalysis material has following good effect: 1. prepare BiOCl/Bi with simple one-step method2S3Nano flower hetero-junctions, preparation process are simple;2. preparation process carries out at 20~35 DEG C of room temperature, it is not necessarily to high-temperature solvent thermal process, mild condition is low for equipment requirements;3. not adding the disagreeableness alkaloids of environment in reaction system and using expensive template, economy is high;4. reaction process is substantially without side reaction, BiOCl/Bi2S3Production rate be maintained at 95% or more;5. the BiOCl/Bi of preparation2S3Nano flower heterojunction material photocatalytic activity with higher, potential is larger in terms of administering or repairing ecological environment.

Description

A kind of method that one step of room temperature prepares the colored hetero-junctions of bismuthyl chloride/bismuth sulfide nano
Technical field
The present invention relates to nano material preparation and solar energy photocatalytics and catalytic organism degradation field, and in particular to one Kind prepares novel bismuthyl chloride/bismuth sulfide nano flower heterojunction photocatalysis material method in 20~35 DEG C of conditions of room temperature in next step And its application.
Background technique
In recent years, hetero-junctions causes the interest of relevant industries with its excellent physical property and chemical activity.Wherein, chlorine Change oxygen bismuth/bismuth sulfide hetero-junctions since its excellent visible light catalytic performance receives everybody common concern.According to research reports, chlorine Change oxygen bismuth/bismuth sulfide hetero-junctions visible light activity is related to its pattern, and wherein 3D structure nano is flower-shaped can more easily separated photoproduction Its combined efficiency is effectively reduced in carrier, is greatly improved its effect in terms of photocatalysis reduces pollutant.But current chlorine Change oxygen bismuth/bismuth sulfide nano flower heterojunction photocatalyst to mostly use through the two-step method preparation in situ for etching BiOCl nano flower.And And the BiOCl nano flower prepared in advance, mostly use organic formwork method synthesize, template is expensive, high production cost without Conducive to large-scale production (Catalysis Communications, 2012,23,54-57;CrystEngComm,2010,12, 3875-3881).In addition, prepare bismuthyl chloride/bismuth sulfide nano flower hetero-junctions process is related to solvent-thermal method, reaction temperature more Height, process flow is long and complex, and the requirement to equipment is also higher, greatly limits bismuthyl chloride/bismuth sulfide nano flower hetero-junctions The application (Applied Surface Science, 2014,290,313-319) of photochemical catalyst.Secondly, to improve hetero-junctions Prepare yield, Many researchers during preparing bismuthyl chloride/bismuth sulfide nano and using up catalyst, using addition NaOH, KOH、K2CO3、NH3·H2The alkaline matters such as O adjust pH, but alkali is not environment friendly type substance, have strong corrosion to equipment Effect brings security risk (Catalysis Communications, 2012,26,204-208) to production.Therefore, ring is researched and developed Cleaning is protected, novel bismuthyl chloride/bismuth sulfide nano of good economy performance uses up the hot spot that catalyst preparation technology has become the field.
The present invention uses a kind of simple wet chemistry method, thio with soluble bismuth salt, sodium chloride or potassium chloride and five hydrations Sodium sulphate has prepared BiOCl/Bi as raw material, in 20~35 DEG C of conditions of room temperature in next step2S3Nano flower heterojunction structure.This Kind one step of room temperature prepares BiOCl/Bi2S3The method of nano flower hetero-junctions has not been reported both at home and abroad.And these BiOCl/Bi2S3It receives Popped rice hetero-junctions has preferable photocatalytic activity under visible light, and potential is huge in terms of administering or repairing ecological environment.This The BiOCl/Bi of kind method preparation2S3Nano flower heterojunction material is at low cost, synthesis condition is mild, easy to operate, technique is simple Single, instrument and equipment requires the features such as low, is conducive to large-scale production, has huge application value.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of simple normal temperature conditions to prepare in next step BiOCl/Bi2S3The method of nano flower heterojunction photocatalysis material.By using soluble bismuth salt, sodium chloride or potassium chloride and five Sodium thiosulfate is hydrated as raw material, under normal temperature conditions, a step has prepared BiOCl/Bi2S3Nano flower heterojunction photocatalysis Material, the reaction system are neither related to hot conditions, be not related to yet complicated reaction unit and valuableness organic formwork agent and Alkaline matter effectively reduces environmental pollution, has saved production cost, is a kind of preparation process of complete green, while again can Maintain high product yield.The preparation method has that at low cost, reaction condition is mild, instrument and equipment requires that low, yield is high, and easily In large-scale production many advantages, such as, have wide prospects for commercial application.
The specific technical solution of the present invention is as follows:
It is an object of the invention to overcome deficiency in the prior art, a kind of 20~35 DEG C of conditions next step of room temperature are provided Prepare BiOCl/Bi2S3The method of nano flower heterojunction photocatalysis material, its step are as follows:
Step (1) at 20~35 DEG C of room temperature, soluble bismuth salt is dissolved in solvent a, the concentration of bismuth element is made 80mM, 5~10min of ultrasound are completely dissolved to soluble bismuth salt, obtain clear solution A;
The soluble bismuth salt is one of five nitric hydrate bismuths, bismuth sulfate or bismuth chloride or a variety of arbitrary proportions Mixture, preferably five nitric hydrate bismuths;
The solvent a is the arbitrary proportion mixture of one or both of deionized water or ethylene glycol, preferably second Glycol;
Step (2) at 20~35 DEG C of room temperature, soluble chlorine salt dissolving is dissolved in solvent b, the concentration of chlorate is made 400mM, 5~10min of ultrasound to soluble chlorine salt dissolving are completely dissolved, and obtain clear solution B;
The soluble chlorine salt dissolving is one of KCl or NaCl or a variety of arbitrary proportion mixtures, preferably chlorination Potassium;
The solvent b is the arbitrary proportion mixture of one or both of deionized water or ethylene glycol, is preferably gone Ionized water;
At 20~35 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), is formed suspended Liquid C, wherein the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20~35 DEG C of room temperature, soluble hypo is dissolved in solvent c, is obtained transparent molten Liquid D, wherein the concentration of sodium thiosulfate is 0.25~1.0mol/L;
The solvent c is the arbitrary proportion mixture of one or both of deionized water or ethylene glycol, preferably go from Sub- water;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E, wherein outstanding The atomic ratio of Bi and S is 2:1~2:4 in turbid E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3~4 times, products therefrom is placed in 18 in 80~100 DEG C of baking ovens~for 24 hours, obtain dry solid powder.
Compared with prior art, the advantages of the present invention are as follows:
(1) BiOCl/Bi is prepared with simple one-step method2S3Nano flower hetero-junctions, preparation process are simple;
(2) preparation process can be completed at 20~35 DEG C of room temperature, be not necessarily to solvent thermal process, reaction condition is mild, to anti- It answers device requirement low and high income, industrially there is higher application prospect;
(3)BiOCl/Bi2S3Preparation process is simple, cleaning, pollution-free.Without expensive organic formwork agent and Organic solvent, reaction process extremely safe green;
The present invention passes through one step of wet chemistry method under normal temperature conditions and has prepared BiOCl/Bi2S3Nano flower hetero-junctions light is urged Change material.It can achieve following good effect: 1.BiOCl/Bi using the present invention2S3Nano flower heterojunction photocatalyst passes through one Footwork preparation, operating procedure are simple;2. preparation process carries out at 20~35 DEG C of room temperature, it is not necessarily to high-temperature solvent thermal process, condition Mildly, low for equipment requirements;3. the template of the disagreeableness alkaloids of environment and valuableness is not added in reaction system, it is economical Property it is high;4. reaction process is substantially without side reaction, BiOCl/Bi2S3Production rate be maintained at 95% or more;5. the BiOCl/ of preparation Bi2S3Nano flower heterojunction material photocatalytic activity with higher, potential is larger in terms of administering or repairing ecological environment.
Detailed description of the invention
Fig. 1 is the XRD spectrum of the flower hetero-junctions catalysis material of bismuthyl chloride/bismuth sulfide nano prepared by embodiment 1, in figure Show that bismuthyl chloride obtained/bismuth sulfide nano flower crystallinity is preferable, the not presence of miscellaneous peak substantially mainly shows BiOCl Diffracted signal.
Fig. 2 is BiOCl/Bi prepared by embodiment 12S3The common SEM image of catalysis material shows BiOCl/ in figure Bi2S3The microstructure of nano material is the nano flower-like of rule, a series of and nanometer sheets that it is about 13nm that nano flower, which is by thickness, Assemble.
Fig. 3 is BiOCl/Bi prepared by embodiment 12S3Catalysis material is under visible light to the degradation curve of rhodamine B. It can be seen from the figure that under visible light, BiOCl/Bi2S3Obvious to the degradation effect of rhodamine B, degradation rate connects in 15min Nearly 100%.
The BiOCl/Bi prepared with embodiment 2-122S3The degradation effect and embodiment 1 of nano flower heterojunction photocatalysis material It is essentially identical, the degradation rate in 50min is above 90%.
Fig. 4 is BiOCl/Bi prepared by embodiment 32S3XRD spectrum in catalysis material shows BiOCl/ obtained in figure Bi2S3Nano material crystallinity is preferable, substantially the not presence of miscellaneous peak, mainly shows the diffracted signal of BiOCl.
Fig. 5 is BiOCl/Bi prepared by embodiment 32S3The common SEM image of catalysis material shows BiOCl/ in figure Bi2S3The microstructure of nano material is the nano flower that the nanometer sheet of rule assembles.
Fig. 6 is BiOCl/Bi prepared by embodiment 52S3The XRD spectra of catalysis material shows BiOCl/ obtained in figure Bi2S3Nano material crystallinity is preferable, substantially the not presence of miscellaneous peak, mainly shows the diffracted signal of BiOCl.
Fig. 7 is BiOCl/Bi prepared by embodiment 52S3The common SEM image of catalysis material shows BiOCl/ in figure Bi2S3The microstructure of nano material is the nano flower that the nanometer sheet of rule assembles.
Fig. 8 is BiOCl/Bi prepared by embodiment 72S3The XRD spectrum of catalysis material shows BiOCl/ obtained in figure Bi2S3Nano material crystallinity is preferable, substantially the not presence of miscellaneous peak, mainly shows the diffracted signal of BiOCl.
Fig. 9 is BiOCl/Bi prepared by embodiment 72S3The common SEM image of catalysis material shows BiOCl/ in figure Bi2S3The microstructure of nano material is the nano flower-like that the nanometer sheet of rule assembles.
Figure 10 is BiOCl/Bi prepared by embodiment 92S3The XRD spectrum of catalysis material shows BiOCl/ obtained in figure Bi2S3Nano material crystallinity is preferable, substantially the not presence of miscellaneous peak, mainly shows the diffracted signal of BiOCl.
Figure 11 is BiOCl/Bi prepared by embodiment 92S3The common SEM image of catalysis material shows BiOCl/ in figure Bi2S3The microstructure of nano material is the nano flower-like that the nanometer sheet of rule assembles.
Figure 12 is BiOCl/Bi prepared by embodiment 112S3The XRD spectrum of catalysis material, in figure made from display BiOCl/Bi2S3Nano material crystallinity is preferable, substantially the not presence of miscellaneous peak, mainly shows the diffracted signal of BiOCl.
Figure 13 is BiOCl/Bi prepared by embodiment 112S3The XRD spectrum of catalysis material, in figure made from display BiOCl/Bi2S3The common SEM image of catalysis material shows BiOCl/Bi in figure2S3The microstructure of nano material is regular The nano flower-like that nanometer sheet assembles.
Specific embodiment
In order to make those skilled in the art better understand technical solution of the present invention, below applicant will be in conjunction with specific real Applying example and attached drawing, the present invention is described in further detail.It should be understood that these embodiments be merely to illustrate the present invention without For limiting the scope of the invention.In addition, it should also be understood that, after reading the content lectured of the present invention, those skilled in the art can be with The present invention is made various changes or modifications, such equivalent forms equally fall within model defined by the application the appended claims It encloses.
Embodiment 1
Step (1) at 20 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 20 DEG C of room temperature, 0.15g potassium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 5min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3 times, products therefrom is placed in 18h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material, as shown in Figure 1, Figure 2, Figure 3 shows.
Embodiment 2
Step (1) at 20 DEG C of room temperature, 0.706g bismuth sulfate is dissolved in ethylene glycol, the concentration 80mM of bismuth element is made, Ultrasonic 5min is completely dissolved to soluble bismuth salt, obtains clear solution A;
Step (2) at 20 DEG C of room temperature, 0.15g potassium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 7min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 4 times, products therefrom is placed in 100 DEG C of baking ovens for 24 hours, dry solid powder is obtained.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 3
Step (1) at 20 DEG C of room temperature, 0.631g bismuth chloride is dissolved in ethylene glycol, the concentration 80mM of bismuth element is made, Ultrasonic 5min is completely dissolved to soluble bismuth salt, obtains clear solution A;
Step (2) at 20 DEG C of room temperature, 0.15g potassium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 8min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 4 times, products therefrom is placed in 20h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material, as shown in Figure 4, Figure 5.
Embodiment 4
Step (1) at 20 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 20 DEG C of room temperature, 0.15g potassium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 5min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.492g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 1.0mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3 times, products therefrom is placed in 100 DEG C of baking ovens for 24 hours, dry solid powder is obtained.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 5
Step (1) at 35 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 35 DEG C of room temperature, 0.15g potassium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 5min are completely dissolved to soluble halide salt, obtain clear solution B;
At 35 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 35 DEG C of room temperature, 0.492g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 1.0mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3 times, products therefrom is placed in 18h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material, as shown in Figure 6, Figure 7.
Embodiment 6
Step (1) at 35 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 35 DEG C of room temperature, 0.15g potassium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 5min are completely dissolved to soluble halide salt, obtain clear solution B;
At 35 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 35 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3 times, products therefrom is placed in 18h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 7
Step (1) at 20 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 20 DEG C of room temperature, 0.117g sodium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 10min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 4 times, products therefrom is placed in 100 DEG C of baking ovens for 24 hours, dry solid powder is obtained.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material, as shown in Figure 8, Figure 9.
Embodiment 8
Step (1) at 20 DEG C of room temperature, 706g bismuth sulfate is dissolved in ethylene glycol, the concentration 80mM of bismuth element is made, and is surpassed Sound 5min is completely dissolved to soluble bismuth salt, obtains clear solution A;
Step (2) at 20 DEG C of room temperature, 0.117g sodium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 10min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 4 times, products therefrom is placed in 100 DEG C of baking ovens for 24 hours, dry solid powder is obtained.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 9
Step (1) at 20 DEG C of room temperature, 0.631g bismuth chloride is dissolved in ethylene glycol, the concentration 80mM of bismuth element is made, Ultrasonic 5min is completely dissolved to soluble bismuth salt, obtains clear solution A;
Step (2) at 20 DEG C of room temperature, 0.117g sodium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 10min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3 times, products therefrom is placed in 18h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material, as shown in Figure 10, Figure 11.
Embodiment 10
Step (1) at 20 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 20 DEG C of room temperature, 0.117g sodium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 5min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.492g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 1.0mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3 times, products therefrom is placed in 18h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 11
Step (1) at 35 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 35 DEG C of room temperature, 0.117g sodium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 10min are completely dissolved to soluble halide salt, obtain clear solution B;
At 35 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 35 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 4 times, products therefrom is placed in 18h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material, as shown in Figure 12 and Figure 13.
Embodiment 12
Step (1) at 35 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 35 DEG C of room temperature, 0.117g sodium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 5min are completely dissolved to soluble halide salt, obtain clear solution B;
At 35 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 35 DEG C of room temperature, 0.492g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 1.0mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3 times, products therefrom is placed in 20h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 13
Step (1) at 20 DEG C of room temperature, five nitric hydrate bismuth of 0.97g is dissolved in ethylene glycol, the concentration of bismuth element is made 80mM, ultrasonic 5min to soluble bismuth salt are completely dissolved, and obtain clear solution A;
Step (2) at 20 DEG C of room temperature, 0.15g potassium chloride is dissolved in deionized water, the concentration of potassium chloride is made 400mM, ultrasonic 10min are completely dissolved to soluble halide salt, obtain clear solution B;
At 20 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 20 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 4 times, products therefrom is placed in 18h in 100 DEG C of baking ovens, obtains dry solid powder.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 14
Step (1), at 25 DEG C of room temperature, by five nitric hydrate bismuth of 0.485g, 0.1765g bismuth sulfate, 0.15775g bismuth chloride It is dissolved in the mixed solution of water and ethylene glycol 1:1, keeps the concentration 80mM, ultrasonic 5min of bismuth element complete to soluble bismuth salt Dissolution, obtains clear solution A;
0.075g potassium chloride and 0.0585g sodium chloride at 25 DEG C of room temperature, are dissolved in deionized water and second two by step (2) In the mixed solution of alcohol 1:1, it is completely dissolved the concentration 400mM, ultrasonic 5min of chloride ion to soluble halide salt, obtains transparent Solution B;
At 25 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 25 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 4 times, products therefrom is placed in 100 DEG C of baking ovens for 24 hours, dry solid powder is obtained.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 15
Step (1), at 25 DEG C of room temperature, by five nitric hydrate bismuth of 0.2425g, 0.353g bismuth sulfate, 0.15775g bismuth chloride It is dissolved in the mixed solution of water and ethylene glycol 1:1, keeps the concentration 80mM, ultrasonic 5min of bismuth element complete to soluble bismuth salt Dissolution, obtains clear solution A;
0.075g potassium chloride and 0.0585g sodium chloride at 25 DEG C of room temperature, are dissolved in deionized water and second two by step (2) In the mixed solution of alcohol 2:1, it is completely dissolved the concentration 400mM, ultrasonic 5min of chloride ion to soluble halide salt, obtains transparent Solution B;
At 25 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 25 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 3 times, products therefrom is placed in 100 DEG C of baking ovens for 24 hours, dry solid powder is obtained.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 16
Step (1), at 25 DEG C of room temperature, by five nitric hydrate bismuth of 0.2425g, 0.353g bismuth sulfate, 0.15775g bismuth chloride It is dissolved in the mixed solution of water and ethylene glycol 1:1, keeps the concentration 80mM, ultrasonic 5min of bismuth element complete to soluble bismuth salt Dissolution, obtains clear solution A;
0.0375g potassium chloride and 0.08775g sodium chloride at 25 DEG C of room temperature, are dissolved in deionized water and second by step (2) In the mixed solution of glycol 1:1, it is completely dissolved the concentration 400mM, ultrasonic 10min of chloride ion to soluble halide salt, obtains Clear solution B;
At 25 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C, Wherein, the atomic ratio of Cl element and Bi element is 1:1 in suspension;
Step (4) at 25 DEG C of room temperature, 0.123g solubility hypo is dissolved in deionized water, is obtained Clear solution D, wherein the concentration of sodium thiosulfate is 0.25mol/L;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E.
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively After washing 4 times, products therefrom is placed in 100 DEG C of baking ovens for 24 hours, dry solid powder is obtained.Up to BiOCl/Bi2S3Nanometer Flower heterojunction photocatalysis material.
Embodiment 17:
Under the conditions of 20~35 DEG C of room temperature a kind of, by one step of wet chemistry method prepare bismuthyl chloride/bismuth sulfide nano spend it is heterogeneous Catalysis material is tied, catalytic degradation rhodamine B is used for:
Bismuthyl chloride prepared by 15mg embodiment 1-12/bismuth sulfide nano flower heterojunction photocatalysis material is accurately weighed respectively Material is added in the aqueous solution for the rhodamine B that 50mL concentration is 15mg/L, stirring 1h is protected from light after ultrasonic 10min, so as to rhodamine B Reach adsorption-desorption balance on the surface of catalysis material, is then simulated after the optical filtering of 400nm optical filter with 300W mercury lamp visible Light irradiation, carries out photocatalytic degradation experiment, the 2mL of interval sampling at regular intervals, be centrifugated out after catalyst upper layer is clear Liquid is analyzed at 553nm with concentration of the ultraviolet-uisible spectrophotometer to supernatant liquor.Luo Dan in photocatalytic degradation experiment The degradation rate of bright B=(concentration of initial rhodamine B-residual rhodamine B concentration) × 100%/initial rhodamine B concentration.
As a result see Fig. 3 and its Detailed description of the invention.
Above-described embodiment is not for limitation of the invention, and the present invention is not limited only to above-described embodiment, as long as meeting The present invention claims all belong to the scope of protection of the present invention.

Claims (10)

1. a kind of one step of room temperature prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, it is characterised in that: this method is specific Steps are as follows:
Step (1) at 20~35 DEG C of room temperature, soluble bismuth salt is dissolved in solvent a, the concentration 80mM of bismuth element is made, and is surpassed 5~10min of sound is completely dissolved to soluble bismuth salt, obtains clear solution A;
Step (2) at 20~35 DEG C of room temperature, soluble chlorine salt dissolving is dissolved in solvent b, the concentration 400mM of chlorate is made, 5~10min of ultrasound is completely dissolved to soluble chlorine salt dissolving, obtains clear solution B;
At 20~35 DEG C of room temperature, under agitation, B solution is added drop-wise in solution A dropwise for step (3), forms suspension C;
Step (4) at 20~35 DEG C of room temperature, soluble hypo is dissolved in solvent c, clear solution D is obtained;
Step (5) after mixture C is stirred 0.5h, solution D is added dropwise thereto, obtains suspended lotion E;
Step (6) after said mixture E is stirred 0.5h, is centrifuged, is successively washed with deionized water and dehydrated alcohol, respectively wash 3 After~4 times, products therefrom is placed in 18 in 80~100 DEG C of baking ovens~for 24 hours, obtain dry solid powder.
2. a kind of one step of room temperature as described in claim 1 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, special Sign is: soluble bismuth salt described in step (1) is one of five nitric hydrate bismuths, bismuth sulfate and bismuth chloride or a variety of timess Meaning scalemic thereof.
3. a kind of one step of room temperature as described in claim 1 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, special Sign is that solvent a described in step (1) is deionized water and/or ethylene glycol.
4. a kind of one step of room temperature as described in claim 1 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, special Sign be soluble chlorine salt dissolving described in step (2) be one of KCl or NaCl or a variety of arbitrary proportion mixtures, preferably Potassium chloride;
5. a kind of one step of room temperature as described in claim 1 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, special Sign is that solvent b described in step (2) is deionized water and/or ethylene glycol.
6. a kind of one step of room temperature as described in claim 1 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, special Sign is step (3), wherein the atomic ratio of Cl element and Bi element is 1:1 in suspension C.
7. a kind of one step of room temperature as described in claim 1 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, special Sign is step (4), wherein the concentration of sodium thiosulfate is 0.25~1.0mol/L.
8. a kind of one step of room temperature as described in claim 1 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, special Sign is that solvent c described in step (4) is the arbitrary proportion mixture of one or both of deionized water or ethylene glycol, excellent Select deionized water;
9. a kind of one step of room temperature as described in claim 1 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions method, special Sign is step (5), wherein the atomic ratio of Bi and S is 2:1~2:4 in suspension E.
10. one step of a kind of room temperature as described in any in claim 1-10 prepares bismuthyl chloride/bismuth sulfide nano flower hetero-junctions Method, it is characterised in that: BiOCl/Bi obtained2S3Nano flower heterojunction photocatalysis material is under visible light source or sunlight The application of catalytic degradation organic pollutant.
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