Comparison of TiO2 and g-C3N4 2D/2D nanocomposites from three synthesis protocols for visible-light induced hydrogen evolution

Zhong, Ruyi1; Zhang, Zisheng1; Luo, Shuqi1; Zhang, Z. Conrad2; Huang, Limin1; Gu, Meng3

2019-01-07

10.1039/c8cy00965a

Catalysis Science & Technology   影响因子和分区

2044-4753

2044-4761

Knowledge of the interfacial structure of nanocomposite materials is a prerequisite for rational design of nanostructured photocatalysts. Herein, TiO2 and g-C3N4 2D/2D nanocomposites were fabricated from three distinct synthetic protocols (i.e., co-calcination, solvothermal treatment and charge-induced aggregation), showing different degrees of enhancement (1.4-6.1 fold) in the visible-light induced photocatalytic hydrogen evolution reaction compared to the simple physical mixture. We propose that the interfacial TiO- N covalent bonding promotes the charge carrier transfer and separation more effectively than the electrostatic interaction, thus accelerating the photocatalytic H-2 production. Meanwhile, the exposed surface area of TiO2 in the composite needs to be enlarged for deposition of the co-catalyst. This research sheds light on the rational design of hybrid nanocomposites based on earth-abundant elements for photocatalysis.

SCI ; EI

英语

第一 ; 通讯

Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06N532]

Chemistry

Chemistry, Physical

WOS:000454918600022

ROYAL SOC CHEMISTRY

20190206363835

Hydrogen production ; Nanocomposites ; Titanium dioxide

Gas Fuels:522 ; Light/Optics:741.1 ; Nanotechnology:761 ; Inorganic Compounds:804.2 ; Solid State Physics:933

Web of Science

1.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Zhong, Ruyi,Zhang, Zisheng,Luo, Shuqi,et al. Comparison of TiO2 and g-C3N4 2D/2D nanocomposites from three synthesis protocols for visible-light induced hydrogen evolution[J]. Catalysis Science & Technology,2019,9(1):75-85.

Zhong, Ruyi,Zhang, Zisheng,Luo, Shuqi,Zhang, Z. Conrad,Huang, Limin,&Gu, Meng.(2019).Comparison of TiO2 and g-C3N4 2D/2D nanocomposites from three synthesis protocols for visible-light induced hydrogen evolution.Catalysis Science & Technology,9(1),75-85.

Zhong, Ruyi,et al."Comparison of TiO2 and g-C3N4 2D/2D nanocomposites from three synthesis protocols for visible-light induced hydrogen evolution".Catalysis Science & Technology 9.1(2019):75-85.