Photocatalytic Hydrogen Generation and CO2 Conversion Using g-C3N4 Decorated Dendritic Fibrous Nanosilica: Role of Interfaces between Silica and g-C3N4

被引：49

作者：

Rawool, Sushma A. ^{[1
]}

Samanta, Anupam ^{[1
]}

Ajithkumar, T. G. ^{[2
,3
]}

Kar, Yusuf ^{[4
]}

Polshettiwar, Vivek ^{[1
]}

机构：

[1] Tata Inst Fundamental Res TIFR, Dept Chem Sci, Mumbai 400005, Maharashtra, India

[2] Natl Chem Lab NCL, CSIR, Cent NMR Facil, Pune 411008, Maharashtra, India

[3] Natl Chem Lab NCL, CSIR, Phys Mat Chem Div, Pune 411008, Maharashtra, India

[4] Shell Technol Ctr, Bangalore 562149, Karnataka, India

来源：

ACS APPLIED ENERGY MATERIALS | 2020年 / 3卷 / 09期

关键词：

photocatalysts; nanocatalysts; hydrogen generation; g-C3N4; DFNS; CO2; conversion; solid-state NMR; GRAPHITIC CARBON NITRIDE; H-2; EVOLUTION; NANOSHEETS; SIO2; TIO2;

D O I：

10.1021/acsaem.0c01265

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have synthesized g-C3N4 decorated over dendritic fibrous nanosilica (DFNS). The generation of C-N-Si interfaces by coating each fiber of DFNS with g-C3N4 not only provided high surface area but also affected the optical and electronic properties of the composite. The catalyst synthesis reproducibility issue of g-C3N4 was resolved using a vacuum-sealed quartz tube. The extended light absorption in the visible region, enhanced lifetime of photogenerated charge carriers due to the formation of interfaces between silica and g-C3N4 (confirmed by solid-state NMR), and increased surface area result in the improved photocatalytic activity of DFNS/g-C(3)N(4)for hydrogen generation and CO2 conversion.

引用

页码：8150 / 8158

页数：9

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