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发明公开
CN109046323A 一种可见光催化剂CQDs/Bi2WO6及其制备方法和应用 无效 - 驳回

一种可见光催化剂CQDs/Bi2WO6及其制备方法和应用
摘要：
本发明公开了一种可见光催化剂CQDs/Bi2WO6及其制备方法和应用，该可见光催化剂CQDs/Bi2WO6是由片状单元组成的不同形貌的巢状微球。制备方法为：将碳源加入到溶剂中，加热反应，反应结束后自然冷却到室温，经过离心，过滤，透析，冷冻干燥得到CQDs粉末；将Bi(NO3)3·5H2O加入到硝酸溶液中，再加入步骤1制备的CQDs粉末；将Na2WO4·2H2O加入到蒸馏水中，然后搅拌条件下将Na2WO4溶液滴加到Bi(NO3)3溶液中，加热反应，反应结束后自然冷却到室温，将产物洗涤数次，干燥，得到可见光催化剂CQDs/Bi2WO6。本发明制得的催化剂形状规整、分散性好，具有更高的选择性。
摘要（英）：

The invention discloses a visible-light-driven photocatalyst CQDs/Bi2WO6 and a preparation method and application thereof. The visible-light-driven photocatalyst CQDs/Bi2WO6 is in a form of nest-shaped microspheres which are composed of piece shaped units and have different shapes. The preparation method comprises the following steps: adding a carbon source to a solvent; performing a heating reaction; naturally cooling until room temperature is reached after the reaction is finished; centrifuging; filtering; analyzing; performing freeze drying to obtain CQDs powder; adding Bi(NO3)3.5H2O to a salpeter solution; then adding the CQDs powder prepared in step 1; adding Na2WO4.2H2O to distilled water; dropwise adding a Na2WO4 solution to a Bi(NO3)3 solution with stirring; performing a heating reaction; naturally cooling until room temperature is reached after the reaction is finished; washing a product for several times; and drying to obtain the visible-light-driven photocatalyst CQDs/ Bi2WO6. The prepared catalyst is regular in shape, high in dispersity and high in selectivity.

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