CN105854912A - A kind of BiPO4-WO3 composite photocatalyst and preparation method thereof - Google Patents

A kind of BiPO4-WO3 composite photocatalyst and preparation method thereof Download PDF

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CN105854912A
CN105854912A CN201610235972.8A CN201610235972A CN105854912A CN 105854912 A CN105854912 A CN 105854912A CN 201610235972 A CN201610235972 A CN 201610235972A CN 105854912 A CN105854912 A CN 105854912A
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composite photocatalyst
mixed solution
bipo
hydrothermal reaction
bismuth nitrate
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刘玉民
张鹏
吕华
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Henan Normal University
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J27/188—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum, tungsten or polonium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/39—Photocatalytic properties

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Abstract

The invention discloses a BiPO4-WO3 composite photocatalyst and a preparation method thereof, and belongs to the technical field of inorganic environment-friendly photocatalysis materials. According to the technical scheme, the preparation method of the BiPO4-WO3 composite photocatalyst comprises the steps that 1, sodium tungstate and sodium chloride are added into deionized water according to the molar ratio of 1:1, the pH value of the mixed solution is adjusted with hydrochloric acid to range from 0.5 to 1 and transferred into a hydrothermal reaction still, the hydrothermal reaction still is placed in a microwave digestion instrument, a microwave reaction is carried out for 10 min to 30 min at the temperature of 180 DEG C, cooling, washing and drying are carried out after the reaction is finished, and WO3 powder is obtained; 2, a bismuth nitrate water solution is prepared, sodium dihydrogen phosphate and the WO3 powder are added to form a mixed solution; 3, the mixed solution obtained in the step 2 is stirred for 1 h at room temperature and then transferred into the hydrothermal reaction still, the hydrothermal reaction still is placed in the microwave digestion instrument, a microwave reaction is carried out for 10 min to 30 min at the temperature of 180 DEG C, centrifugation, washing and drying are carried out after the reaction is finished, and the BiPO4-WO3 composite photocatalyst is prepared. According to the prepared BiPO4-WO3 composite photocatalyst, the utilization rate of sunlight and photocatalytic activity are effectively increased.

Description

一种BiPO4-WO3复合光催化剂及其制备方法A kind of BiPO4-WO3 composite photocatalyst and preparation method thereof

技术领域 technical field

本发明属于无机环保光催化材料技术领域，具体涉及一种BiPO4-WO3复合光催化剂及其制备方法。 The invention belongs to the technical field of inorganic environment-friendly photocatalytic materials, and in particular relates to a BiPO 4 -WO 3 composite photocatalyst and a preparation method thereof.

背景技术 Background technique

近年来，光催化氧化技术处理有机污染物由于具备能力强、效率高和无二次污染等优点，在环境研究领域得到学者们的广泛研究。光催化氧化技术主要利用产生具有高活性和高氧化性的羟基自由基，对有机污染物进行氧化去除，从而达到对污水进行有效处理的目的。 In recent years, photocatalytic oxidation technology has been widely studied by scholars in the field of environmental research due to its advantages of strong ability, high efficiency and no secondary pollution. Photocatalytic oxidation technology mainly utilizes the generation of highly active and highly oxidizing hydroxyl radicals to oxidize and remove organic pollutants, so as to achieve the purpose of effectively treating sewage.

在众多光催化剂中，BiPO4作为一种含氧酸盐，自被发现以来即因其卓越的光催化性能而备受关注。然而，由于它较宽的带隙值（3.83eV）决定了它只能吸收紫外光而导致光的利用率不高，其光生电子和空穴的快速复合，也大大降低了光催化效率，从而阻碍了其在工业上的应用。作为一种重要的n型可见光光催化剂，WO3由于其较窄的禁带宽度，吸引了相当大的关注。然而，目前尚没有相关文献关于BiPO4-WO3复合光催化剂的报道。 Among many photocatalysts, BiPO 4 , as an oxo acid salt, has attracted much attention for its excellent photocatalytic performance since its discovery. However, due to its wide bandgap value (3.83eV), it can only absorb ultraviolet light, resulting in low light utilization rate, and the rapid recombination of photogenerated electrons and holes also greatly reduces the photocatalytic efficiency, thus hampers its industrial application. As an important n-type visible-light photocatalyst, WO 3 has attracted considerable attention due to its narrow bandgap. However, there is no relevant literature report on BiPO 4 -WO 3 composite photocatalysts.

发明内容 Contents of the invention

本发明解决的技术问题是提供了一种光量子效率高、太阳能利用率高且光催化活性好的BiPO4-WO3复合光催化剂。 The technical problem solved by the invention is to provide a BiPO 4 -WO 3 composite photocatalyst with high photon quantum efficiency, high solar energy utilization rate and good photocatalytic activity.

本发明解决的另一个技术问题是提供了一种简单易行且方便操作的BiPO4-WO3复合光催化剂的制备方法。 Another technical problem solved by the present invention is to provide a simple and easy-to-operate BiPO 4 -WO 3 composite photocatalyst preparation method.

本发明为解决上述技术问题采用如下技术方案，一种BiPO4-WO3复合光催化剂的制备方法，其特征在于包括以下步骤：（1）将钨酸钠和氯化钠按摩尔比为1:1加入到去离子水中配成钨酸钠与氯化钠的混合溶液，搅拌30min后用盐酸调节混合溶液的pH值为0.5-1，继续搅拌30min后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应10-30min，待反应结束后经冷却、洗涤、干燥得到WO3粉末；（2）以硝酸铋和去离子水为原料配制硝酸铋水溶液，在搅拌条件下向硝酸铋水溶液中加入磷酸二氢钠和步骤（1）得到的WO3粉末形成混合溶液，其中所加磷酸二氢钠与硝酸铋的摩尔比为1:1，所加WO3粉末与硝酸铋的摩尔比为1-10:1；（3）在室温条件下将步骤（2）得到的混合溶液搅拌1h后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应10-30min，待反应结束冷却至常温后经离心、洗涤、干燥制得BiPO4-WO3复合光催化剂。 In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme, a preparation method of BiPO 4 -WO 3 composite photocatalyst, which is characterized in that it comprises the following steps: (1) Sodium tungstate and sodium chloride are made into a molar ratio of 1: 1. Add it into deionized water to make a mixed solution of sodium tungstate and sodium chloride. After stirring for 30 minutes, use hydrochloric acid to adjust the pH value of the mixed solution to 0.5-1. After continuing to stir for 30 minutes, transfer it to a hydrothermal reaction kettle, and then heat The reaction kettle was put into a microwave digestion apparatus and reacted with microwave at 180°C for 10-30min. After the reaction, it was cooled, washed and dried to obtain WO 3 powder; (2) Bismuth nitrate aqueous solution was prepared with bismuth nitrate and deionized water, Add sodium dihydrogen phosphate and the WO 3 powder obtained in step (1) to the bismuth nitrate aqueous solution under stirring to form a mixed solution, wherein the molar ratio of added sodium dihydrogen phosphate to bismuth nitrate is 1:1, and the added WO 3 powder The molar ratio to bismuth nitrate is 1-10:1; (3) Stir the mixed solution obtained in step (2) for 1 hour at room temperature, then transfer it to a hydrothermal reaction kettle, and then put the hydrothermal reaction kettle into a microwave digestion apparatus Microwave reaction at 180°C for 10-30min, and after the reaction was completed, cooled to room temperature, centrifuged, washed and dried to obtain BiPO 4 -WO 3 composite photocatalyst.

进一步优选，步骤（1）的钨酸钠与氯化钠的混合溶液中钨酸钠的摩尔浓度为0.05-0.2mol/L。 Further preferably, the molar concentration of sodium tungstate in the mixed solution of sodium tungstate and sodium chloride in step (1) is 0.05-0.2 mol/L.

进一步优选，步骤（2）的硝酸铋水溶液的摩尔浓度为0.1-0.5mol/L。 Further preferably, the molar concentration of the bismuth nitrate aqueous solution in step (2) is 0.1-0.5 mol/L.

本发明所述的BiPO4-WO3复合光催化剂，是按照上述方法制备得到的。 The BiPO 4 -WO 3 composite photocatalyst of the present invention is prepared according to the above method.

本发明与现有技术相比具有以下有益效果： Compared with the prior art, the present invention has the following beneficial effects:

1、本发明为了提高BiPO4的光谱响应范围，将其与具有理想带隙的WO3相复合，利用两种半导体之间的能级差能使光生载流子由一种半导体微粒的能级注入到另一种半导体的能级上，使电荷有效分离，有效提高了BiPO4的太阳能利用率和光量子效率； 1. In order to improve the spectral response range of BiPO 4 , the present invention combines it with WO 3 with an ideal band gap, and utilizes the energy level difference between the two semiconductors to inject photogenerated carriers from the energy level of a semiconductor particle To the energy level of another semiconductor, the charge is effectively separated, and the solar energy utilization rate and light quantum efficiency of BiPO 4 are effectively improved;

2、BiPO4光催化剂的导带电势ECB=0.44eV，价带电势EVB=4.27eV，而WO3光催化剂的导带电势ECB=0.41eV，价带电势EVB=3.18eV，在BiPO4-WO3复合半导体中，WO3的导带电势更负，光生电子容易从能级低的WO3导带迁移到能级高的BiPO4导带上，BiPO4的价带电势更正，光生空穴容易从能级高的BiPO4价带迁移到能级低的WO3价带上，从而提高光生电荷的分离效率，进而提高其光催化性能； 2. The conduction band potential E CB =0.44eV and the valence band potential E VB =4.27eV of the BiPO 4 photocatalyst, while the conduction band potential E CB =0.41eV and the valence band potential E VB =3.18eV of the WO 3 photocatalyst. In the BiPO 4 -WO 3 compound semiconductor, the conduction band potential of WO 3 is more negative, and the photogenerated electrons are easy to migrate from the low energy level WO 3 conduction band to the high energy level BiPO 4 conduction band, and the valence band potential of BiPO 4 is more positive. The photogenerated holes are easy to migrate from the high-energy BiPO 4 valence band to the low-energy WO 3 valence band, thereby improving the separation efficiency of photogenerated charges and improving its photocatalytic performance;

3、WO3禁带较窄，能有效拓展BiPO4光催化剂对可见光的利用率，进而有效提高太阳光的利用率和光催化活性。 3. The narrow bandgap of WO 3 can effectively expand the utilization rate of visible light of BiPO 4 photocatalyst, thereby effectively improving the utilization rate of sunlight and photocatalytic activity.

附图说明 Description of drawings

图1为300W汞灯照射下，本发明实施例2制得的BiPO4-WO3复合光催化剂和纯BiPO4光催剂对罗丹明B的降解对比曲线图（操作条件：催化剂的量：0.1g；罗丹明B的质量浓度：5mg/L）。 Fig. 1 is under the irradiation of 300W mercury lamp, BiPO 4 -WO 3 composite photocatalysts and pure BiPO 4 photocatalysts made in the embodiment of the present invention 2 are compared to the degradation curve of rhodamine B (operating conditions: the amount of catalyst: 0.1 g; mass concentration of rhodamine B: 5mg/L).

具体实施方式 detailed description

以下通过实施例对本发明的上述内容做进一步详细说明，但不应该将此理解为本发明上述主题的范围仅限于以下的实施例，凡基于本发明上述内容实现的技术均属于本发明的范围。 The above-mentioned contents of the present invention are described in further detail below through the embodiments, but this should not be interpreted as the scope of the above-mentioned themes of the present invention being limited to the following embodiments, and all technologies realized based on the above-mentioned contents of the present invention all belong to the scope of the present invention.

实施例1 Example 1

（1）将0.005 mol的钨酸钠和0.005 mol的氯化钠加入到去离子水中定容到100mL形成钨酸钠和氯化钠的混合溶液，搅拌30min后用盐酸调节混合溶液的pH值为0.5，继续搅拌30min后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应10min，待反应结束后经冷却、洗涤、干燥得到WO3粉末； (1) Add 0.005 mol of sodium tungstate and 0.005 mol of sodium chloride into deionized water and make up to 100mL to form a mixed solution of sodium tungstate and sodium chloride. After stirring for 30 minutes, adjust the pH value of the mixed solution with hydrochloric acid 0.5, continue to stir for 30 minutes, then transfer to a hydrothermal reaction kettle, then put the hydrothermal reaction kettle into a microwave digestion apparatus and react with microwaves at 180°C for 10 minutes, after the reaction is completed, cool, wash and dry to obtain WO 3 powder;

（2）配制摩尔浓度为0.1mol/L的硝酸铋水溶液100mL，在搅拌条件下向硝酸铋水溶液加入0.01mol的磷酸二氢钠和0.01mol步骤（1）得到的WO3粉末； (2) Prepare 100 mL of an aqueous solution of bismuth nitrate with a molar concentration of 0.1 mol/L, and add 0.01 mol of sodium dihydrogen phosphate and 0.01 mol of WO 3 powder obtained in step (1) to the aqueous solution of bismuth nitrate under stirring conditions;

（3）在室温条件下将步骤（1）得到的混合溶液搅拌1h后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应10min，待反应结束冷却至常温后经离心、洗涤、干燥制得具有高催化活性的BiPO4-WO3复合光催化剂。 (3) Stir the mixed solution obtained in step (1) for 1 hour at room temperature, then transfer it to a hydrothermal reaction kettle, then put the hydrothermal reaction kettle into a microwave digestion apparatus and react with microwaves at 180°C for 10 minutes, and cool to After centrifugation, washing and drying at room temperature, a BiPO 4 -WO 3 composite photocatalyst with high catalytic activity was obtained.

实施例2 Example 2

（1）将0.01mol的钨酸钠和0.01mol的氯化钠加入到去离子水中定容到100mL形成钨酸钠与氯化钠的混合溶液，搅拌30min后用盐酸调节混合溶液的pH值为0.8，继续搅拌30min后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应20min，待反应结束后经冷却、洗涤、干燥得到WO3粉末； (1) Add 0.01mol of sodium tungstate and 0.01mol of sodium chloride into deionized water and make up to 100mL to form a mixed solution of sodium tungstate and sodium chloride. After stirring for 30 minutes, adjust the pH of the mixed solution with hydrochloric acid 0.8, continue to stir for 30 minutes, then transfer to a hydrothermal reaction kettle, then put the hydrothermal reaction kettle into a microwave digestion apparatus and react with microwaves at 180°C for 20 minutes, after the reaction is completed, cool, wash and dry to obtain WO 3 powder;

（2）配制摩尔浓度为0.2mol/L的硝酸铋水溶液100mL，在搅拌条件下向硝酸铋水溶液加入0.02mol的磷酸二氢钠和0.1mol步骤（1）得到的WO3粉末； (2) Prepare 100 mL of bismuth nitrate aqueous solution with a molar concentration of 0.2 mol/L, and add 0.02 mol of sodium dihydrogen phosphate and 0.1 mol of WO 3 powder obtained in step (1) to the bismuth nitrate aqueous solution under stirring conditions;

（3）在室温条件下将步骤（2）得到的混合溶液搅拌1h后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应20min，待反应结束冷却至常温后经离心、洗涤、干燥制得具有高催化活性的BiPO4-WO3复合光催化剂。 (3) Stir the mixed solution obtained in step (2) for 1 hour at room temperature, then transfer it to a hydrothermal reaction kettle, then put the hydrothermal reaction kettle into a microwave digestion apparatus and react with microwaves at 180°C for 20 minutes, and cool to The BiPO 4 -WO 3 composite photocatalyst with high catalytic activity was prepared by centrifugation, washing and drying at room temperature.

图1是300W汞灯照射下，本实施例制得的BiPO4-WO3复合光催化剂和纯BiPO4光催剂对罗丹明B的降解对比曲线图，由图可知在模拟可见光的照射下，光照4h后，纯BiPO4光催化剂对罗丹明B的降解率为19%左右，而BiPO4-WO3复合光催化剂对罗丹明B的降解率可达到92%左右，表现出明显增强的光催化活性。 Fig. 1 is under the irradiation of 300W mercury lamp, the BiPO 4 -WO 3 composite photocatalysts and pure BiPO 4 photocatalysts prepared in the present embodiment compare the degradation curves of rhodamine B. It can be seen from the figure that under the irradiation of simulated visible light, After 4 hours of light irradiation, the degradation rate of rhodamine B by pure BiPO 4 photocatalyst was about 19%, while that of BiPO 4 -WO 3 composite photocatalyst could reach about 92%, showing a significantly enhanced photocatalytic active.

实施例3 Example 3

（1）将0.02mol的钨酸钠和0.02mol的氯化钠加入到去离子水中定容到100mL形成钨酸钠和氯化钠的混合溶液，搅拌30min后用盐酸调节混合溶液的pH值为1.0，继续搅拌30min后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应30min，待反应结束后经冷却、洗涤、干燥得到WO3粉末； (1) Add 0.02mol of sodium tungstate and 0.02mol of sodium chloride to deionized water and make up to 100mL to form a mixed solution of sodium tungstate and sodium chloride. After stirring for 30 minutes, adjust the pH value of the mixed solution with hydrochloric acid 1.0, continue to stir for 30 minutes, then transfer to a hydrothermal reaction kettle, then put the hydrothermal reaction kettle into a microwave digestion apparatus and react with microwave at 180°C for 30 minutes, after the reaction is completed, cool, wash and dry to obtain WO 3 powder;

（2）配制摩尔浓度为0.5mol/L的硝酸铋水溶液100mL，在搅拌条件下向硝酸铋水溶液加入0.05mol的磷酸二氢钠和0.5mol步骤（1）得到的WO3粉末； (2) Prepare 100 mL of bismuth nitrate aqueous solution with a molar concentration of 0.5 mol/L, and add 0.05 mol of sodium dihydrogen phosphate and 0.5 mol of WO 3 powder obtained in step (1) to the bismuth nitrate aqueous solution under stirring conditions;

（3）在室温条件下将步骤（2）得到的混合溶液搅拌1h后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应30min，待反应结束冷却至常温后经离心、洗涤、干燥制得具有高催化活性的BiPO4-WO3复合光催化剂。 (3) Stir the mixed solution obtained in step (2) for 1 hour at room temperature, then transfer it to a hydrothermal reaction kettle, then put the hydrothermal reaction kettle into a microwave digestion apparatus and react with microwaves at 180°C for 30 minutes, and cool to The BiPO 4 -WO 3 composite photocatalyst with high catalytic activity was prepared by centrifugation, washing and drying at room temperature.

以上实施例描述了本发明的基本原理、主要特征及优点，本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明原理的范围下，本发明还会有各种变化和改进，这些变化和改进均落入本发明保护的范围内。 The above embodiments have described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What are described in the above embodiments and description are only to illustrate the principles of the present invention. Without departing from the scope of the principle of the present invention, there will be various changes and improvements in the present invention, and these changes and improvements all fall within the protection scope of the present invention.

Claims (4)

1.一种BiPO4-WO3复合光催化剂的制备方法，其特征在于包括以下步骤：（1）将钨酸钠和氯化钠按摩尔比为1:1加入到去离子水中配成钨酸钠与氯化钠的混合溶液，搅拌30min后用盐酸调节混合溶液的pH值为0.5-1，继续搅拌30min后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应10-30min，待反应结束后经冷却、洗涤、干燥得到WO3粉末；（2）以硝酸铋和去离子水为原料配制硝酸铋水溶液，在搅拌条件下向硝酸铋水溶液中加入磷酸二氢钠和步骤（1）得到的WO3粉末形成混合溶液，其中所加磷酸二氢钠与硝酸铋的摩尔比为1:1，所加WO3粉末与硝酸铋的摩尔比为1-10:1；（3）在室温条件下将步骤（2）得到的混合溶液搅拌1h后转移至水热反应釜，然后将水热反应釜放入微波消解仪中于180℃微波反应10-30min，待反应结束冷却至常温后经离心、洗涤、干燥制得BiPO4-WO3复合光催化剂。 1. A preparation method of BiPO 4 -WO 3 composite photocatalyst, which is characterized in that it comprises the following steps: (1) adding sodium tungstate and sodium chloride into deionized water at a molar ratio of 1:1 to form tungstic acid The mixed solution of sodium and sodium chloride, after stirring for 30 minutes, adjust the pH value of the mixed solution to 0.5-1 with hydrochloric acid, continue to stir for 30 minutes, then transfer it to a hydrothermal reaction kettle, and then put the hydrothermal reaction kettle into a microwave digestion apparatus at 180 Microwave reaction at ℃ for 10-30 minutes, after the reaction is completed, it is cooled, washed and dried to obtain WO 3 powder; (2) Bismuth nitrate aqueous solution is prepared with bismuth nitrate and deionized water as raw materials, and phosphoric acid is added to the bismuth nitrate aqueous solution under stirring conditions Sodium dihydrogen and the WO 3 powder obtained in step (1) form a mixed solution, wherein the molar ratio of added sodium dihydrogen phosphate to bismuth nitrate is 1:1, and the molar ratio of added WO 3 powder to bismuth nitrate is 1-10 : 1; (3) Stir the mixed solution obtained in step (2) for 1 hour at room temperature, then transfer it to a hydrothermal reaction kettle, then put the hydrothermal reaction kettle into a microwave digestion apparatus and react with microwaves at 180°C for 10-30min, After the reaction was completed, the BiPO 4 -WO 3 composite photocatalyst was prepared by centrifuging, washing and drying after cooling to normal temperature. 2.根据权利要求1所述的BiPO4-WO3复合光催化剂的制备方法，其特征在于：步骤（1）的钨酸钠与氯化钠的混合溶液中钨酸钠的摩尔浓度为0.05-0.2mol/L。 2. The preparation method of BiPO 4 -WO 3 composite photocatalyst according to claim 1, characterized in that: the molar concentration of sodium tungstate in the mixed solution of sodium tungstate and sodium chloride in step (1) is 0.05- 0.2mol/L. 3. 根据权利要求1所述的BiPO4-WO3复合光催化剂的制备方法，其特征在于：步骤（2）的硝酸铋水溶液的摩尔浓度为0.1-0.5mol/L。 3. The preparation method of BiPO 4 -WO 3 composite photocatalyst according to claim 1, characterized in that: the molar concentration of the bismuth nitrate aqueous solution in step (2) is 0.1-0.5 mol/L. 4. 一种BiPO4-WO3复合光催化剂，其特征在于是按照权利要求1-3中任意一项所述的方法制备得到的。 4. A BiPO 4 -WO 3 composite photocatalyst, characterized in that it is prepared according to the method described in any one of claims 1-3.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106984346A (en) * 2017-03-30 2017-07-28 常州大学 A kind of preparation method of silver orthophosphate compound phosphoric acid bismuth photochemical catalyst
CN107597155A (en) * 2017-09-27 2018-01-19 大连民族大学 A kind of one pot process has visible light-responded photochemical catalyst BiPO4/WO3The preparation method of nanometer sheet
CN110743584A (en) * 2019-10-14 2020-02-04 东北大学秦皇岛分校 Preparation and application of a WO3 modified BiPO4 photocatalyst
CN112121830A (en) * 2020-09-18 2020-12-25 江苏大学 A kind of preparation method and application of silver phosphate/tungsten trioxide core-shell nanometer photocatalytic composite material
CN114392734A (en) * 2021-12-29 2022-04-26 北京工业大学 A kind of tungsten oxide composite material and its preparation method and application

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110130130A (en) * 2010-05-27 2011-12-05 금호석유화학 주식회사 Multicomponent Metal Oxide Catalyst Containing VaIPO4, Method for Preparing the Same, and Method for Preparing 1,3-butadiene Using the Same
CN104128194A (en) * 2014-07-25 2014-11-05 浙江工商大学 A p-n type Bi2O3/BiPO4 heterojunction visible light responsive photocatalytic thin film material and its preparation method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110130130A (en) * 2010-05-27 2011-12-05 금호석유화학 주식회사 Multicomponent Metal Oxide Catalyst Containing VaIPO4, Method for Preparing the Same, and Method for Preparing 1,3-butadiene Using the Same
CN104128194A (en) * 2014-07-25 2014-11-05 浙江工商大学 A p-n type Bi2O3/BiPO4 heterojunction visible light responsive photocatalytic thin film material and its preparation method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GUANGFANG LI等: "Microwave synthesis of BiPO4 nanostructures and their morphology-dependent photocatalytic performances", 《JOURNAL OF COLLOID AND INTERFACE SCIENCE》 *
张昭: "WO3/BiVO4复合光催化剂的制备及其可见光光催化性能研究", 《中国优秀硕士学位论文全文数据库（电子期刊）》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106984346A (en) * 2017-03-30 2017-07-28 常州大学 A kind of preparation method of silver orthophosphate compound phosphoric acid bismuth photochemical catalyst
CN107597155A (en) * 2017-09-27 2018-01-19 大连民族大学 A kind of one pot process has visible light-responded photochemical catalyst BiPO4/WO3The preparation method of nanometer sheet
CN110743584A (en) * 2019-10-14 2020-02-04 东北大学秦皇岛分校 Preparation and application of a WO3 modified BiPO4 photocatalyst
CN110743584B (en) * 2019-10-14 2022-03-29 东北大学秦皇岛分校 WO (WO)3Modified BiPO4Preparation method and application of photocatalyst
CN112121830A (en) * 2020-09-18 2020-12-25 江苏大学 A kind of preparation method and application of silver phosphate/tungsten trioxide core-shell nanometer photocatalytic composite material
CN114392734A (en) * 2021-12-29 2022-04-26 北京工业大学 A kind of tungsten oxide composite material and its preparation method and application
CN114392734B (en) * 2021-12-29 2024-01-30 北京工业大学 Tungsten oxide composite material and preparation method and application thereof

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