Facile synthesis of porous graphene-like carbon nitride (C6N9H3) with excellent photocatalytic activity for NO removal

被引：179

作者：

Dong, Guohui ^{[1
,2
,3
]}

Ho, Wingkei ^{[1
,2
,4
]}

Li, Yuhan ^{[1
,2
]}

Zhang, Lizhi ^{[3
]}

机构：

[1] Hong Kong Inst Educ, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China

[2] Hong Kong Inst Educ, Ctr Educ Environm Sustainabil, Tai Po, Hong Kong, Peoples R China

[3] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China

[4] Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710075, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2015年 / 174卷

关键词：

Porous; C6N9H3; Photocatalytic; NO removal; Visible light; SEMICONDUCTORS; WATER; PHOTOREACTIVITY; PERFORMANCE; FABRICATION; PHOTOLYSIS; G-C3N4;

D O I：

10.1016/j.apcatb.2015.03.035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We reported the possible synthesis of a new porous graphene-like carbon nitride (C6N9H3) by simply adding hydrochloric acid in the precursor of block g-C3N4. The formation of the porous graphene-like C6N9H3 can be attributed to the change in the thermal condensation modal of the precursor and the acidic condition induced by Cl- and H+. The photocatalytic activity of the samples was evaluated by the removal of NO under visible light illumination. We found that the porous graphene-like C6N9H3 exhibited enhanced photocatalytic activity compared to the block g-C3N4. We also researched the removal mechanism and found that the removal of NO in our systems was due to the synergic effect of h(+) and O-center dot(2-). This study could shed light on the design of efficient photocatalysts and facilitate a deep understanding of the NO removal mechanism through photocatalytic technology. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：477 / 485

页数：9

共 35 条

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PHOTOCATALYTIC OXIDATION OF ORGANIC-ACIDS ON QUANTUM-SIZED SEMICONDUCTOR COLLOIDS [J].