Material with dual heterogeneous structure, preparation method and application thereof

Abstract

This application discloses material with dual heterogeneous structure, preparation method and application thereof. The material with dual heterogeneous structure is CdS/Bi2S3/ZnS composite material. With spherical Bi2S3 as the carrier, CdS particles and ZnS particles are uniformly dispersed on the surface of Bi2S3 to form a dual heterogeneous structure. The preparation method of the material with dual heterogeneous structure, comprising: dissolving Bi (NO3)3·5H2O in ethylene glycol solution to obtain Solution A; dissolving ZnCl2 in water to obtain solution B; dissolving CdCl2·2.5H2O in water to obtain solution C; mixing the solution A, B and C, and adding L-cysteine to the mixture. After hydrothermal reaction, washing and drying, CdS/Bi2S3/ZnS composite material is obtained. The material with dual heterogeneous structure can be applied in photocatalytic reduction of carbon dioxide, which selectively reduces carbon dioxide to CH4.

Dependencies are inferred from the claim text.