Understanding Reaction Kinetics by Tailoring Metal Co-catalysts of the BiVO4 Photocatalyst

被引：30
作者：
Choe, Hye Rin [1 ,2 ]
Kim, Ji Hyeon [1 ,2 ]
Ma, Ahyeon [1 ,2 ]
Jung, Haeun [1 ,2 ]
Kim, Ha Young [1 ,2 ]
Nam, Ki Min [1 ,2 ]
机构：
[1] Pusan Natl Univ, Dept Chem, Busan 46241, South Korea
[2] Pusan Natl Univ, Chem Inst Funct Mat, Busan 46241, South Korea
来源：
ACS OMEGA | 2019年 / 4卷 / 15期
基金：
新加坡国家研究基金会;
关键词：
DOPED BIVO4; DEGRADATION; WATER; NANOPARTICLES; MECHANISMS; FACILE;
D O I：
10.1021/acsomega.9b02454
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, the reaction mechanisms of metal-semiconductor composites used as photocatalysts were demonstrated by first preparing bismuth vanadate (BiVO4) and then performing photodeposition of metal nanoparticles. The photocatalytic activity of metal-BiVO4 (M-BiVO4, where M = Pt, Au, Ag) composites were evaluated through dye decomposition under UV-vis irradiation. The photocatalytic efficiency was significantly enhanced after Pt deposition as compared to other M-BiVO4 composites. The size or shape of BiVO4 was not the main factor for the efficiency of Pt-BiVO4. However, a deposited Pt co-catalyst was essential for the photocatalytic decomposition of dye on the BiVO4 surface. Radical scavengers were employed to elucidate the reaction mechanism during the photocatalytic reaction with the Pt-BiVO4 composite. This study provides details on the reaction mechanism of the photocatalytic reaction on Pt at the BiVO4 surface under solar irradiation.
引用
收藏
页码：16597 / 16602
页数：6
相关论文
共 26 条
[1]   Principles and mechanisms of photocatalytic dye degradation on TiO2 based photocatalysts: a comparative overview [J].
Ajmal, Anila ;
Majeed, Imran ;
Malik, Riffat Naseem ;
Idriss, Hicham ;
Nadeem, Muhammad Amtiaz .
RSC ADVANCES, 2014, 4 (70) :37003-37026
[2]   Preparation of Au-BiVO4 Heterogeneous Nanostructures as Highly Efficient Visible-Light Photocatalysts [J].
Cao, Shao-Wen ;
Yin, Zhen ;
Barber, James ;
Boey, Freddy Y. C. ;
Loo, Say Chye Joachim ;
Xue, Can .
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (01) :418-423
[3]   Metal-semiconductor double shell hollow nanocubes for highly stable hydrogen generation photocatalysts [J].
Choi, Woong ;
Park, Garam ;
Bae, Kyung-Lyul ;
Choi, Ji Yong ;
Nam, Ki Min ;
Song, Hyunjoon .
JOURNAL OF MATERIALS CHEMISTRY A, 2016, 4 (35) :13414-13418
[4]   Chitosan functionalized activated coke for Au nanoparticles anchoring: Green synthesis and catalytic activities in hydrogenation of nitrophenols and azo dyes [J].
Fu, Yukui ;
Qin, Lei ;
Huang, Danlian ;
Zeng, Guangming ;
Lai, Cui ;
Li, Bisheng ;
He, Jiangfan ;
Yi, Huan ;
Zhang, Mingming ;
Cheng, Min ;
Wen, Xiaofeng .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2019, 255
[5]   Au nanoparticles decorated on activated coke via a facile preparation for efficient catalytic reduction of nitrophenols and azo dyes [J].
Fu, Yukui ;
Xu, Piao ;
Huang, Danlian ;
Zeng, Guangming ;
Lai, Cui ;
Qin, Lei ;
Li, Bisheng ;
He, Jiangfan ;
Yi, Huan ;
Cheng, Min ;
Zhang, Chen .
APPLIED SURFACE SCIENCE, 2019, 473 :578-588
[6]   ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[7]   Novel visible-light-driven Pt/BiVO4 photocatalyst for efficient degradation of methyl orange [J].
Ge, Lei .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2008, 282 (1-2) :62-66
[8]   Decolourization of textile industry wastewater by the photocatalytic degradation process [J].
Hachem, C ;
Bocquillon, F ;
Zahraa, O ;
Bouchy, M .
DYES AND PIGMENTS, 2001, 49 (02) :117-125
[9]   ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].
HOFFMANN, MR ;
MARTIN, ST ;
CHOI, WY ;
BAHNEMANN, DW .
CHEMICAL REVIEWS, 1995, 95 (01) :69-96
[10]   Porous F-doped BiVO4: Synthesis and enhanced photocatalytic performance for the degradation of phenol under visible-light illumination [J].
Jiang, Haiyan ;
Dai, Hongxing ;
Deng, Jiguang ;
Liu, Yuxi ;
Zhang, Lei ;
Ji, Kemeng .
SOLID STATE SCIENCES, 2013, 17 :21-27
123