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

[21] Photocatalytic water splitting using semiconductor particles: History and recent developments [J].

Maeda, Kazuhiko .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2011, 12 (04) :237-268

[22] An overview of semiconductor photocatalysis [J].

Mills, A ;

LeHunte, S .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1997, 108 (01) :1-35

[23] Synthesis of nanostructured ZnO/Bi2WO6 heterojunction for photocatalysis application [J].

Min, YuLin ;

Zhang, Kan ;

Chen, YouCun ;

Zhang, YuanGuang ;

Zhao, Wei .

SEPARATION AND PURIFICATION TECHNOLOGY, 2012, 92 :115-120

[24] Synthesis of novel visible light responding vanadate/TiO2 heterostructure photocatalysts for application of organic pollutants [J].

Min, YuLin ;

Zhang, Kan ;

Chen, YouCun ;

Zhang, YuanGuang .

CHEMICAL ENGINEERING JOURNAL, 2011, 175 :76-83

[25] Correlation of crystal structures, electronic structures, and photocatalytic properties in a series of Ag-based oxides:: AgAlO2, AgCrO2, and Ag2CrO4 [J].

Ouyang, Shuxin ;

Li, Zhaosheng ;

Ouyang, Zi ;

Yu, Tao ;

Ye, Jinhua ;

Zou, Zhigang .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (08) :3134-3141

[26] Photosensitization of TiO2 by MxOy and MxSy nanoparticles for heterogeneous photocatalysis applications [J].

Robert, Didier .

CATALYSIS TODAY, 2007, 122 (1-2) :20-26

[27] Graphitic carbon nitride materials: variation of structure and morphology and their use as metal-free catalysts [J].

Thomas, Arne ;

Fischer, Anna ;

Goettmann, Frederic ;

Antonietti, Markus ;

Mueller, Jens-Oliver ;

Schloegl, Robert ;

Carlsson, Johan M. .

JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (41) :4893-4908

[28] Characterisation of nanostructured silver orthophosphate [J].

Thomas, M ;

Ghosh, SK ;

George, KC .

MATERIALS LETTERS, 2002, 56 (04) :386-392

[29] Visible-light-induced H2 evolution from an aqueous solution containing sulfide and sulfite over a ZnS-CuInS2-AgInS2 solid-solution photocatalyst [J].

Tsuji, I ;

Kato, H ;

Kudo, A .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (23) :3565-3568

[30]

Umezawa N., 2011, PHYS REV B, V83

← 1 2 3 4 →