Single-step One-pot Synthesis of TiO2 Nanosheets Doped with Sulfur on Reduced Graphene Oxide with Enhanced Photocatalytic Activity

被引：53

作者：

Wang, Weilin ^{[1
,2
]}

Wang, Zhaofeng ^{[2
]}

Liu, Jingjing ^{[2
]}

Luo, Zhu ^{[3
]}

Sui, Steven L. ^{[2
,3
]}

He, Peng ^{[4
]}

Ding, Guqiao ^{[4
]}

Zhang, Zhengguo ^{[1
]}

Sun, Luyi ^{[2
,5
]}

机构：

[1] South China Univ Technol, Minist Educ, Key Lab Enhanced Heat Transfer & Energy Conservat, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA

[3] Univ Connecticut, Dept Chem, Storrs, CT 06269 USA

[4] Chinese Acad Sci, State Key Lab Funct Mat Informat, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China

[5] Univ Connecticut, Dept Chem & Biomol Engn, Storrs, CT 06269 USA

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

关键词：

EXPOSED; 001; FACETS; ANATASE TIO2; TITANIUM-DIOXIDE; METHYLENE-BLUE; NANOCRYSTALLINE TIO2; HYDROGEN-PRODUCTION; CHARGE SEPARATION; WATER; DEGRADATION; MECHANISMS;

D O I：

10.1038/srep46610

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A hybrid photocatalyst based on anatase TiO2 was designed by doping TiO2 with sulfur and incorporating reduced graphene oxide (TiO2- S/rGO hybrid), with an aim to narrow the band gap to potentially make use of visible light and decrease the recombination of excitons, respectively. This TiO2-S/rGO hybrid was successfully synthesized using a one-pot hydrothermal method via single-step reaction. The structure and morphology of the TiO2-S/rGO hybrid catalyst was carefully characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Its photocatalytic reactivity was evaluated by the degradation of methyl blue. The results showed that both the doping of sulfur and the introduction of rGO worked as designed, and the TiO2-S/rGO hybrid exhibited high photocatalytic activity under simulated sunlight. Considering both the facile and scalable reaction to synthesize TiO2-S/rGO hybrid, and its excellent photocatalytic performance, such TiO2-S/rGO hybrids are expect to find practical applications in environmental and energy sectors.

引用

页数：9

共 78 条

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