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Synthesis of CdS/m-TiO2 mesoporous spheres and their application in photocatalytic degradation of rhodamine B under visible light

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Abstract

CdS/m-TiO2 heteroarchitecture with CdS nanocrystals loaded on mesoporous TiO2(m-TiO2) spheres was successfully synthesized via sol-gel method followed by solvothermal treatment. The material with uniform diameter of ca. 750 nm possesses regular mesoporous structure and large specific surface area of 100.5 m2/g. When used to photodegradate Rhodamine B(RB) under visible light, the CdS/m-TiO2 heteroarchitecture exhibits improved photocatalytic performance in comparison with pure m-TiO2 or CdS. The excellent photocatalytic activity is closely related to the facilitated separation of electron-hole pairs derived from the CdS/m-TiO2 heterojunction and mesoporous structure with high specific surface area and adequately exposed active sites.

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Correspondence to Nan Li or Xiaotian Li.

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Supported the National Natural Science Foundation of China(Nos.21076094 and 21673097).

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Cui, S., Li, X., Li, Y. et al. Synthesis of CdS/m-TiO2 mesoporous spheres and their application in photocatalytic degradation of rhodamine B under visible light. Chem. Res. Chin. Univ. 33, 436–441 (2017). https://doi.org/10.1007/s40242-017-6377-6

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  • DOI: https://doi.org/10.1007/s40242-017-6377-6

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