Ball-flower like NiO/g-C3N4 heterojunction for efficient visible light photocatalytic CO2 reduction

被引：295

作者：

Tang, Jun-ying ^{[1
]}

Guo, Rui-tang ^{[2
,3
,4
]}

Zhou, Wei-guo ^{[1
,4
]}

Huang, Chun-ying ^{[2
,3
]}

Pan, Wei-guo ^{[2
,3
]}

机构：

[1] Tongji Univ, Coll Mech Engn, Shanghai, Peoples R China

[2] Shanghai Univ Elect Power, Coll Energy & Mech Engn, Shanghai, Peoples R China

[3] Shanghai Engn Res Ctr Power Generat Environm Prot, Shanghai, Peoples R China

[4] Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2018年 / 237卷

基金：

上海市自然科学基金;

关键词：

g-C3N4; NiO/g-C(3)N(4)composite; p-n heterojunction; CO(2)photoreduction; Ball-flower; NICKEL-OXIDE NANOPARTICLES; CARBON-MONOXIDE OXIDATION; H-2-PRODUCTION ACTIVITY; HYDROTHERMAL SYNTHESIS; HYDROGEN; PERFORMANCE; NANOCOMPOSITES; COMPOSITES; METAL; WATER;

D O I：

10.1016/j.apcatb.2018.06.042

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：

A ball-flower like NiO/g-C3N4 heterojunction composite was synthesized via a hydrothermal deposition method combined with subsequent calcination route. The NiO/g-C3N4 heterojunction exhibited a superior performance in CO2 photoreduction. A maximum CO yields of 4.17 mu mol/(h g-cat) had been obtained on 40% NiO/g-C3N4 composite, which was 2.5 and 7.6 times as high as the pure g-C3N4 and NiO respectively. The promotion mechanism could be ascribed to the perfect band matching and efficient internal charge transfer within the p-n junction, which results in high-efficiency separation of photogenerated electron-hole pairs, strong visible-light response and high specific surface area.

引用

页码：802 / 810

页数：9

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