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Highly improved visible-light-driven photocatalytic reduction of Cr (VI) over heterostructured CdS/Bi2MoO6 nanocomposite

TINGTING WU1, SHANSHAN LIU1, FANGFANG1, CHENGCAI HUANG1, XU ZHANG1,*

Affiliation

  1. Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, 150025, PR China

Abstract

Heterostructured CdS/Bi2MoO6 nanocomposite was prepared based on Bi2MoO6 framework assembled from nanoflakes through a two-step facile approach. Photocatalytic activity of the as-synthesized product toward Cr (VI) reduction was studied. The heterostructured CdS/Bi2MoO6 nanocomposite shows a much higher photocatalytic activity in the reduction of Cr (VI) to Cr (III) than pure Bi2MoO6, and the reduction ratio of Cr (VI) can reach 94.6% in 15 min. The superior photocatalytic reduction activity of the heterostructured nanocomposite was ascribed to the enhanced visible light absorption ability and dramatically boosted separation efficiency of charge carriers.

Keywords

CdS/Bi2MoO6 nanocomposites, Photocatalysis, Visible-light-driven, Cr (VI) reduction.

Citation

TINGTING WU, SHANSHAN LIU, FANGFANG, CHENGCAI HUANG, XU ZHANG, Highly improved visible-light-driven photocatalytic reduction of Cr (VI) over heterostructured CdS/Bi2MoO6 nanocomposite, Optoelectronics and Advanced Materials - Rapid Communications, 14, 1-2, January-February 2020, pp.92-98 (2020).

Submitted at: May 22, 2019

Accepted at: Feb. 17, 2020