Facile Water-Based Strategy for Synthesizing MoO3-x Nanosheets: Efficient Visible Light Photocatalysts for Dye Degradation

被引：148

作者：

Etman, Ahmed S. ^{[1
,3
]}

Abdelhamid, Hani Nasser ^{[1
]}

Yuan, Youyou ^{[2
]}

Wang, Ligang ^{[2
]}

Zou, Xiaodong ^{[1
]}

Sun, Junliang ^{[1
,2
]}

机构：

[1] Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius Vag 16C, SE-10691 Stockholm, Sweden

[2] Peking Univ, Coll Chem & Mol Engn, Yiheyuan Rd 5, Beijing 100871, Peoples R China

[3] Alexandria Univ, Dept Chem, Fac Sci, POB 426, Alexandria 21321, Egypt

来源：

ACS OMEGA | 2018年 / 3卷 / 02期

基金：

瑞典研究理事会;

关键词：

TRANSITION-METAL DICHALCOGENIDES; MOLYBDENUM TRIOXIDE NANOSHEETS; PLASMON RESONANCES; OXIDE NANOSHEETS; LIQUID EXFOLIATION; METHYLENE-BLUE; AMMONIA BORANE; AZO-DYE; NANOPARTICLES; PHASE;

D O I：

10.1021/acsomega.8b00012

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanostructured molybdenum oxides are promising materials for energy storage, catalysis, and electronic-based applications. Herein, we report the synthesis of MoO3-x nanosheets (x stands for oxygen vacancy) via an environmentally friendly liquid exfoliation approach. The process involves the reflux of the bulk alpha-MoO3 precursor in water at 80 degrees C for 7 days. Electron microscopy and atomic force microscopy show that the MoO3-x nanosheets are a few nanometer thick. MoO3-x nanosheets exhibit near infrared plasmonic property that can be enhanced by visible light irradiation for a short time (10 min). Photocatalytic activity of MoO3-x nanosheets for organic dye decolorization is examined using two different dyes (rhodamine B and methylene blue). Under visible light irradiation, MoO3-x nanosheets make a rapid decolorization for the dye molecules in less than 10 min. The simple synthesis procedure of MoO3-x nanosheets combined with their remarkable photochemical properties reflect the high potential for using the nanosheets in a variety of applications.

引用

页码：2193 / 2201

页数：9

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