Title : Efficient photocatalytic reduction of hexavalent chromium by NiCo2S4/BiOBr heterogeneous photocatalysts

Hits :

Title of Paper:Efficient photocatalytic reduction of hexavalent chromium by NiCo2S4/BiOBr heterogeneous photocatalysts

Journal:Coatings

Key Words:Coatings; Composite; Photocatalyst; Cr(VI); NiCo2S4; BiOBr

Abstract:For typical Cr(VI)-containing industrial wastewater, more efficient water treatment technologies must be used to ensure that Cr(VI) concentrations are reduced to safe levels before discharge. Photocatalytic technology is highly efficient and environmentally friendly, and it has been extensively used to address this demand. Herein, heterogeneous NiCo2S4/BiOBr photocatalysts with different ratios were prepared using a solvothermal method. Compared to pure NiCo2S4 and BiOBr, NiCo2S4/BiOBr-30 had significantly increased adsorption capacity and visible-light-driven photocatalytic reduction activity for Cr(VI) removal. The improved adsorption performance of NiCo2S4/BiOBr-30 is mainly due to its increased specific surface area, and the enhanced photocatalytic performance of NiCo2S4/BiOBr-30 could be attributed to the improved separation and transfer of photogenerated carriers at the interface. Finally, a possible enhanced photocatalytic Cr(VI) reduction mechanism for the NiCo2S4/BiOBr heterostructure was developed.

All the Authors:Yi Ren,Yulin Huang,Ziye Zheng,Lihui Xiao,Dong Zhai,Shuguang Wang

First Author:Shumeng Qin,Ruofan Xu,Qiu Jin

Indexed by:Journal paper

Correspondence Author:Sen Wang,Zuoli He

Document Code:1492

Discipline:Engineering

First-Level Discipline:Environmental Science and Engineering

Document Type:J

Volume:14

Issue:12

Page Number:1492

Number of Words:9412

Translation or Not:no

Date of Publication:2024-11-01

Included Journals:SCI