In-situ hydrothermal synthesis of Ag3PO4/g-C3N4 composite and their photocatalytic decomposition of NOx

被引：37

作者：

Zhao, Zhihuan ^{[1
,2
]}

Fan, Jimin ^{[1
,2
]}

Liu, Wenhui ^{[1
]}

Xue, Yongqiang ^{[1
]}

Yin, Shu ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Shanxi, Peoples R China

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 695卷

基金：

中国国家自然科学基金;

关键词：

In-situ solvothermal method; Composite Ag3PO4/g-C3N4; Decomposition NOx; Heterojunction; GRAPHITIC CARBON NITRIDE; VISIBLE-LIGHT IRRADIATION; OXYGEN REDUCTION REACTION; G-C3N4; MATERIAL; TIO2; AG3PO4; ELECTROCATALYSTS; NANOPARTICLES; MICROCRYSTALS; PERFORMANCES;

D O I：

10.1016/j.jallcom.2016.12.001

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：

Ag3PO4 and Ag3PO4/g-C3N4 were successfully synthesized by an in-situ solvothermal method using graphitic carbon nitride obtained by sectional heating of guanidine carbonate and AgNO3 as starting materials. The composites were characterized by XRD, SEM, PL, DRS and BET. The photocatalytic performance was determined by deNOx reaction under different light wavelength irradiation. Ag3PO4/gC(3)N(4) composites with different ratio showed different band gap and morphology, and also decreased the photo-corrosion and self-corrosion by forming heterojunction. The photocatalytic deNOx ability of Ag3PO4/20% g-C3N4 was 15.52% under irradiation of visible light (>400 nm) and could be enhanced to 41.76% under irradiation of 290 nm. With the increment of the g-C3N4 content, high efficiency of charge separation induced by the formation of heterojunction between Ag3PO4 and g-C3N4. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：2812 / 2819

页数：8

共 47 条

[1]

[Anonymous], [No title captured]

[2] A simple and efficient strategy for the synthesis of a chemically tailored g-C3N4 material [J].

Bai, Xiaojuan ;

Yan, Shicheng ;

Wang, Jiajia ;

Wang, Li ;

Jiang, Wenjun ;

Wu, Songling ;

Sun, Changpo ;

Zhu, Yongfa .

JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (41) :17521-17529

[3] Photocatalytic and photoelectric properties of cubic Ag3PO4 sub-microcrystals with sharp corners and edges [J].

Bi, Yingpu ;

Hu, Hongyan ;

Ouyang, Shuxin ;

Lu, Gongxuan ;

Cao, Junyu ;

Ye, Jinhua .

CHEMICAL COMMUNICATIONS, 2012, 48 (31) :3748-3750

[4] Facile synthesis of rhombic dodecahedral AgX/Ag3PO4 (X = Cl, Br, I) heterocrystals with enhanced photocatalytic properties and stabilities [J].

Bi, Yingpu ;

Ouyang, Shuxin ;

Cao, Junyu ;

Ye, Jinhua .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (21) :10071-10075

[5] Facile synthesis of Ag3PO4/C3N4 composites with improved visible light photocatalytic activity [J].

Chai, Bo ;

Zou, Fangyuan ;

Chen, Wenjie .

JOURNAL OF MATERIALS RESEARCH, 2015, 30 (08) :1128-1136

[6] Methods and mechanism for improvement of photocatalytic activity and stability of Ag3PO4: A review [J].

Chen, Xiaojuan ;

Dai, Youzhi ;

Wang, Xingyan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 649 :910-932

[7] Photocatalytic oxidation of NOx gases using TiO2:: a surface spectroscopic approach [J].

Dalton, JS ;

Janes, PA ;

Jones, NG ;

Nicholson, JA ;

Hallam, KR ;

Allen, GC .

ENVIRONMENTAL POLLUTION, 2002, 120 (02) :415-422

[8] A fantastic graphitic carbon nitride (g-C3N4) material: Electronic structure, photocatalytic and photoelectronic properties [J].

Dong, Guoping ;

Zhang, Yuanhao ;

Pan, Qiwen ;

Qiu, Jianrong .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2014, 20 :33-50

[9]

FAN L, 2009, J ALLOY COMPD, V470, P375

[10] Chemical synthesis of mesoporous carbon nitrides using hard templates and their use as a metal-free catalyst for friedel-crafts reaction of benzene [J].

Goettmann, Frederic ;

Fischer, Anna ;

Antonietti, Markus ;

Thomas, Arne .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (27) :4467-4471

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