Ternary bismuth-based composite photocatalyst Bi/Bi4O5Br2/BiOI, and preparation method and application thereof

The invention provides a ternary bismuth-based composite photocatalyst Bi/Bi4O5Br2/BiOI, and a preparation method thereof, which relate to the technical field of semiconductor photocatalytic materials. The preparation method of the ternary bismuth-based composite photocatalyst Bi/Bi4O5Br2/BiOI compr...

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Hauptverfasser:	CHEN ZHOUYANG, WANG KELIANG, TU SHUNHENG, YUAN SUFEN, JIANG CHAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Zusammenfassung:	The invention provides a ternary bismuth-based composite photocatalyst Bi/Bi4O5Br2/BiOI, and a preparation method thereof, which relate to the technical field of semiconductor photocatalytic materials. The preparation method of the ternary bismuth-based composite photocatalyst Bi/Bi4O5Br2/BiOI comprises the steps of dissolving a bismuth-containing compound, iodate and bromine into ethylene glycol,adjusting a pH value of a solution to 8 to 10, and carrying out hydrothermal reaction. The method is simple in preparation process, low in cost, free of producing toxic and harmful byproducts, and easy for industrial production. The ternary bismuth-based composite photocatalyst Bi/Bi4O5Br2/BiOI is prepared by the preparation method. The catalyst has better visible light induction capability and pollutant degradation capability, and the utilization rate of solar energy is improved during a catalytic process. 本发明提供种三元铋基复合光催化剂Bi/BiOBr/BiOI及其制备方法，涉及半导体光催化材料技术领域。种三元铋基复合光催化剂Bi/BiOBr/BiOI的制备方法，包括：将含铋化合物与碘盐及溴盐溶解于乙二醇中，调节溶液的pH