Electrostatic self-assembly of CdS nanowires-nitrogen doped graphene nanocomposites for enhanced visible light photocatalysis

doi:10.1016/S2095-4956(15)60295-9

能源化学(英文) ›› 2015, Vol. 21 ›› Issue (2): 145-156.DOI: 10.1016/S2095-4956(15)60295-9

Electrostatic self-assembly of CdS nanowires-nitrogen doped graphene nanocomposites for enhanced visible light photocatalysis

Bin Han^a, Siqi Liu^a,b, Zi-Rong Tang^a, Yi-Jun Xu^a,b

a. College of Chemistry, New Campus, Fuzhou University, Fuzhou 350108, Fujian, China;
b. State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China

收稿日期:2014-09-03 修回日期:2014-10-10 出版日期:2015-03-23 发布日期:2015-03-23
通讯作者: Zi-Rong Tang
基金资助:
This work was supported by the National Natural Science Foundation of China (NSFC) (20903022, 20903023, 21173045), the Award Program for Minjiang Scholar Professorship, the Science and Technology Development of Foundation of Fuzhou University (2009-XQ-10), the Open Fund of Photocatalysis of Fuzhou University (0380038004), and the Program for Returned High-Level Overseas Chinese Scholars of Fujian Province.

Electrostatic self-assembly of CdS nanowires-nitrogen doped graphene nanocomposites for enhanced visible light photocatalysis

Bin Han^a, Siqi Liu^a,b, Zi-Rong Tang^a, Yi-Jun Xu^a,b

a. College of Chemistry, New Campus, Fuzhou University, Fuzhou 350108, Fujian, China;
b. State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China

Received:2014-09-03 Revised:2014-10-10 Online:2015-03-23 Published:2015-03-23
Contact: Zi-Rong Tang
Supported by:
This work was supported by the National Natural Science Foundation of China (NSFC) (20903022, 20903023, 21173045), the Award Program for Minjiang Scholar Professorship, the Science and Technology Development of Foundation of Fuzhou University (2009-XQ-10), the Open Fund of Photocatalysis of Fuzhou University (0380038004), and the Program for Returned High-Level Overseas Chinese Scholars of Fujian Province.

摘要/Abstract

摘要： CdS nanowires-nitrogen doped graphene (CdS NWs-NGR) nanocomposites have been fabricated by an electrostatic self-assembly strategy followed by a hydrothermal reduction. The CdS NWs-NGR exhibits higher photoactivity for selective reduction of aromatic nitro organics in water under visible light irradiation than blank CdS nanowires (CdS NWs) and CdS nanowires-reduced graphene oxide (CdS NWs-RGO) nanocomposites. The enhanced photoactivity of CdS NWs-NGR can be attributed to the improved electronic conductivity due to the introduction of nitrogen atoms, which thus enhances the separation and transfer of charge carriers photogenerated from CdS NWs. Our work could provide a facile method to synthesize NGR based one-dimensional (1D) semiconductor composites for selective organic transformations, and broaden the potential applications for NGR as a cocatalyst.

关键词: nitrogen doping, graphene, CdS nanowire, photocatalytic organic synthesis, visible light

Abstract: CdS nanowires-nitrogen doped graphene (CdS NWs-NGR) nanocomposites have been fabricated by an electrostatic self-assembly strategy followed by a hydrothermal reduction. The CdS NWs-NGR exhibits higher photoactivity for selective reduction of aromatic nitro organics in water under visible light irradiation than blank CdS nanowires (CdS NWs) and CdS nanowires-reduced graphene oxide (CdS NWs-RGO) nanocomposites. The enhanced photoactivity of CdS NWs-NGR can be attributed to the improved electronic conductivity due to the introduction of nitrogen atoms, which thus enhances the separation and transfer of charge carriers photogenerated from CdS NWs. Our work could provide a facile method to synthesize NGR based one-dimensional (1D) semiconductor composites for selective organic transformations, and broaden the potential applications for NGR as a cocatalyst.

Key words: nitrogen doping, graphene, CdS nanowire, photocatalytic organic synthesis, visible light

Bin Han, Siqi Liu, Zi-Rong Tang, Yi-Jun Xu. Electrostatic self-assembly of CdS nanowires-nitrogen doped graphene nanocomposites for enhanced visible light photocatalysis[J]. 能源化学(英文), 2015, 21(2): 145-156.

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Electrostatic self-assembly of CdS nanowires-nitrogen doped graphene nanocomposites for enhanced visible light photocatalysis

Electrostatic self-assembly of CdS nanowires-nitrogen doped graphene nanocomposites for enhanced visible light photocatalysis

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