Plasmonic enhanced photocatalytic activity of semiconductors for the degradation of organic pollutants under visible light

被引：17

作者：

Chehadi, Zeinab ^{[1
,2
]}

Alkees, Nadeen ^{[1
,2
]}

Bruyant, Aurelien ^{[1
]}

Toufaily, Joumana ^{[2
]}

Girardon, Jean-Sebastien ^{[3
,4
]}

Capron, Mickael ^{[3
,4
]}

Dumeignil, Franck ^{[3
,4
]}

Hamieh, Tayssir ^{[2
]}

Bachelot, Renaud ^{[1
]}

Jradi, Safi ^{[1
]}

机构：

[1] Univ Technol Troyes, Lab Nanotechnol & Instrumentat Opt, Inst Charles Delaunay, CNRS,UMR 6281, F-10004 Troyes, France

[2] Lebanese Univ, Fac Sci 1, Lab Mat Catalysis Environm & Analyt Methods, Doctorate Sch Sci & Technol, Beirut, Lebanon

[3] Univ Lille Nord France, F-59000 Lille, France

[4] CNRS, UMR 8181, UCCS, F-59650 Villeneuve Dascq, France

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2016年 / 42卷

关键词：

Plasmonic nanoparticles; Semiconductors; Laser assisted catalysis; Photocatalyst; Bisphenol-A; Photodegradation; Water treatment; NANOSTRUCTURES; LACQUER; AU;

D O I：

10.1016/j.mssp.2015.08.044

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Metal oxide semiconductors hold great promise for applications in energy conversion and storage, environmental remediation, and other areas. However, critical factors such as the high rate of charge-carrier recombination and limited light absorption have restricted more practical and viable applications. In this context, plasmonic nanostructures of noble metals in combination with semiconductors offer a promising future for the next generation of energy needs. In this work we investigate the coupling between Plasmonic gold nanostructures and catalyst supports such as TiO2, ZnO and Al2O3 in order to study the photocatalytic degradation of Bisphenol A (BPA) under visible irradiation (laser source and LED). The experimental investigations have shown extremely fast and complete photodegradation of organic pollutants in water. The influence of laser power and photocatalyst band gap on the catalytic activity was investigated as well. Au/TiO2 catalyst showed the fastest degradation of BPA due to efficient electron transfer from excited noble metal gold nanoparticles to the semiconductor. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：81 / 84

页数：4

共 16 条

[1] Micro/nanoporous polymer chips as templates for highly sensitive SERS sensors [J].