A novel photofunctional g-C3N4/Ag3PO4 bulk heterojunction for decolorization of Rh.B

被引：139

作者：

Zhang, Feng-Jun ^{[1
,2
]}

Xie, Fa-Zhi ^{[1
]}

Zhu, Shao-Feng ^{[1
]}

Liu, Jin ^{[1
]}

Zhang, Jun ^{[1
]}

Mei, Sheng-Fu ^{[1
]}

Zhao, Wei ^{[3
]}

机构：

[1] Anhui Jianzhu Univ, Anhui Key Lab Adv Bldg Mat, Hefei 230022, Anhui, Peoples R China

[2] Minist Educ, Engn Res Ctr Bldg Energy Efficient Control & Eval, Hefei 230022, Anhui, Peoples R China

[3] Hanseo Univ, Dept Mat Sci & Engn, Seosan 356706, Chungnam, South Korea

来源：

CHEMICAL ENGINEERING JOURNAL | 2013年 / 228卷

关键词：

g-C3N4/Ag3PO4; Bulk heterojunction; Charge transfer; Photocatalytic activity; ENHANCED PHOTOCATALYTIC ACTIVITY; ENVIRONMENTAL APPLICATIONS; HYDROGEN-PRODUCTION; TITANIUM-DIOXIDE; FACILE SYNTHESIS; WATER; SEMICONDUCTOR; EFFICIENT; STABILITY;

D O I：

10.1016/j.cej.2013.05.027

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A novel photofunctional graphitic carbon nitride/silver phosphate (g-C3N4/Ag3PO4) bulk heterojunction has been reported for photodecolorization of Rhodamine B (Rh.B), which was synthesized step-by-step by the ion-impregnating method. The UV-vis diffuse reflectance spectra showed that the g-C3N4/Ag3PO4 bulk heterojunction has two intense optical absorption edges corresponding to g-C3N4 and Ag3PO4 in the visible light region. Photoluminescence spectra confirmed that the separation efficiency of photogenerated charges in the heterojunction was more intensive than pristine g-C3N4. Furthermore, the vectorial charge transfer at the g-C3N4/Ag3PO4 interface could be confirmed by photocurrent response. The g-C3N4/Ag3PO4 heterojunction with 5:1 weight ratio exhibited the highest photocatalytic activity for decolorization of Rh.B which was higher than that of pristine g-C3N4 and Ag3PO4. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：435 / 441

页数：7

共 40 条

[1] Facile Synthesis of Sunlight-Driven AgCl:Ag Plasmonic Nanophotocatalyst [J].

An, Changhua ;

Peng, Sheng ;

Sun, Yugang .

ADVANCED MATERIALS, 2010, 22 (23) :2570-2574

[2] Photocatalytic degradation for environmental applications - a review [J].

Bhatkhande, DS ;

Pangarkar, VG ;

Beenackers, AACM .

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2002, 77 (01) :102-116

[3] 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

[4] Facet Effect of Single-Crystalline Ag3PO4 Sub-microcrystals on Photocatalytic Properties [J].

Bi, Yingpu ;

Ouyang, Shuxin ;

Umezawa, Naoto ;

Cao, Junyu ;

Ye, Jinhua .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (17) :6490-6492

[5] Large-scale synthesis of uniform silver orthophosphate colloidal nanocrystals exhibiting high visible light photocatalytic activity [J].

Cao-Thang Dinh ;

Thanh-Dinh Nguyen ;

Kleitz, Freddy ;

Trong-On Do .

CHEMICAL COMMUNICATIONS, 2011, 47 (27) :7797-7799

[6] Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications [J].

Chen, Xiaobo ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2007, 107 (07) :2891-2959

[7] Nanostructured Ti1-xSxO2-yNy Heterojunctions for Efficient Visible-Light-Induced Photocatalysis [J].

Etacheri, Vinodkumar ;

Seery, Michael K. ;

Hinder, Steven J. ;

Pillai, Suresh C. .

INORGANIC CHEMISTRY, 2012, 51 (13) :7164-7173

[8] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].

HOFFMANN, MR ;

MARTIN, ST ;

CHOI, WY ;

BAHNEMANN, DW .

CHEMICAL REVIEWS, 1995, 95 (01) :69-96

[9] Heterojunction semiconductors: A strategy to develop efficient photocatalytic materials for visible light water splitting [J].

Jang, Jum Suk ;

Kim, Hyun Gyu ;

Lee, Jae Sung .

CATALYSIS TODAY, 2012, 185 (01) :270-277

[10] In situ formation of an oxygen-evolving catalyst in neutral water containing phosphate and Co2+ [J].

Kanan, Matthew W. ;

Nocera, Daniel G. .

SCIENCE, 2008, 321 (5892) :1072-1075

← 1 2 3 4 →