Synergically Improving Light Harvesting and Charge Transportation of TiO2 Nanobelts by Deposition of MoS2 for Enhanced Photocatalytic Removal of CrVIReportar como inadecuado


Synergically Improving Light Harvesting and Charge Transportation of TiO2 Nanobelts by Deposition of MoS2 for Enhanced Photocatalytic Removal of CrVI


Synergically Improving Light Harvesting and Charge Transportation of TiO2 Nanobelts by Deposition of MoS2 for Enhanced Photocatalytic Removal of CrVI - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1

School of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China

2

School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430072, China

3

Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China





*

Authors to whom correspondence should be addressed.



Academic Editors: Shaobin Wang and Xiaoguang Duan

Abstract Herein, MoS2-TiO2 nanobelts heterojunction have been successfully synthesized by in situ growth method for photocatalytic reduction of CrVI. TiO2 nanobelts NBs with rough surface were prepared firstly by acidic treatment process, which is beneficial for deposition and growth of MoS2 to form heterojunctions. As a result of special energy level offset and nanostructure, MoS2-TiO2 NBs composite were endowed with higher light-harvesting capacity and charge transportation efficiency, which are indispensible merits for excellent photocatalytic activity. The photocatalytic reduction of CrVI reveals that the synthesized MoS2-TiO2 NBs composite have superior photocatalytic ability than other samples. Meanwhile, a photoreduction mechanism is proposed based on the systematic investigation, where the photogenerated electrons are demonstrated as the dominant reductive species to reduce CrVI to CrIII. View Full-Text

Keywords: environmental remediation; CrVI; photocatalysis; TiO2 NBs; MoS2 environmental remediation; CrVI; photocatalysis; TiO2 NBs; MoS2





Autor: Jie Liu 1, Ying Li 1, Jun Ke 2,* , Zhong Wang 3 and Huining Xiao 1,*

Fuente: http://mdpi.com/



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