ZnIn2S4 flowerlike microspheres embedded with carbon quantum dots for efficient photocatalytic reduction of Cr(VI)

被引：73

作者：

Liu, Baibai ^{[1
]}

Liu, Xinjuan ^{[1
]}

Li, Lei ^{[2
]}

Li, Jianwei ^{[3
]}

Li, Can ^{[1
]}

Gong, Yinyan ^{[1
]}

Niu, Lengyuan ^{[1
]}

Zhao, Xinsheng ^{[3
]}

Sun, Chang Q. ^{[4
]}

机构：

[1] China Jiliang Univ, Coll Mat Sci & Engn, Inst Coordinat Bond Metrol & Engn CBME, Hangzhou 310018, Zhejiang, Peoples R China

[2] Yangtze Normal Univ, Chongqing Key Lab Extraordinary Coordinat Bond &, Chongqing 408100, Peoples R China

[3] Jiangsu Normal Univ, Sch Phys & Elect Engn, Xuzhou 221116, Jiangsu, Peoples R China

[4] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

CHINESE JOURNAL OF CATALYSIS | 2018年 / 39卷 / 12期

基金：

中国国家自然科学基金;

关键词：

ZnIn2S4; Carbon quantum dots; Flowerlike microspheres; Co-catalyst; Photoelectronchemical; REDUCED GRAPHENE OXIDE; MICROWAVE-ASSISTED SYNTHESIS; HYDROGEN EVOLUTION; H-2; EVOLUTION; HYDROTHERMAL SYNTHESIS; CHARGE SEPARATION; COMPOSITE; HYBRID; WATER; ZNS;

D O I：

10.1016/S1872-2067(18)63137-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Development of efficient heterostructured photocatalysts that respond to visible light remains a considerable challenge. We herein show the synthesis of ZnIn2S4/carbon quantum dot hybrid photocatalysts with flowerlike microspheres via a facile solvothermal method. The ZnIn2S4/carbon quantum dot flowerlike microspheres display enhanced photocatalytic and photoelectrochemical activity compared with that of pure ZnIn2S4. With a content of only 0.5 wt % carbon quantum dots, 93% of Cr(VI) is reduced under visible-light irradiation at 40 min. As a co-catalyst, the carbon quantum dots improve the light absorption and lengthen the lifetime of charge carriers, consequently enhancing the photocatalytic and photoelectrochemical activity. (C) 2018, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：1901 / 1909

页数：9

共 50 条

[1] Efficient removal of Cr(VI) from aqueous solution with Fe@Fe2O3 core-shell nanowires [J].

Ai, Zhihui ;

Cheng, Ying ;

Zhang, Lizhi ;

Qiu, Jianrong .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2008, 42 (18) :6955-6960

[2] Highly enhanced photocatalytic properties of ZnS nanowires-graphene nanocomposites [J].

Cao, Jian ;

Liu, Qianyu ;

Han, Donglai ;

Yang, Shuo ;

Yang, Jinghai ;

Wang, Tingting ;

Niu, Haifeng .

RSC ADVANCES, 2014, 4 (58) :30798-30806

[3] Enhancement of photocatalytic H2 evolution on ZnIn2S4 loaded with in-situ photo-deposited MoS2 under visible light irradiation [J].

Chen, Guoping ;

Ding, Ning ;

Li, Fan ;

Fan, Yuzun ;

Luo, Yanhong ;

Li, Dongmei ;

Meng, Qingbo .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2014, 160 :614-620

[4] Magnesia interface nanolayer modification of Pt/Ta3N5 for promoted photocatalytic hydrogen production under visible light irradiation [J].

Chen, Shanshan ;

Qi, Yu ;

Ding, Qian ;

Li, Zheng ;

Cui, Junyan ;

Zhang, Fuxiang ;

Li, Can .

JOURNAL OF CATALYSIS, 2016, 339 :77-83

[5] One-pot hydrothermal route to synthesize the ZnIn2S4/g-C3N4 composites with enhanced photocatalytic activity [J].

Chen, Wei ;

Liu, Tian-Yu ;

Huang, Ting ;

Liu, Xiao-Heng ;

Zhu, Jun-Wu ;

Duan, Guo-Rong ;

Yang, Xu-Jie .

JOURNAL OF MATERIALS SCIENCE, 2015, 50 (24) :8142-8152

[6] Pyrite FeS2 microspheres anchoring on reduced graphene oxide aerogel as an enhanced electrode material for sodium-ion batteries [J].

Chen, Weihua ;

Qi, Shihan ;

Guan, Linquan ;

Liu, Chuntai ;

Cui, Shizhong ;

Shen, Changyu ;

Mi, Liwei .

JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (11) :5332-5341

[7] Fabricate Globular Flower-like CuS/CdIn2S4/ZnIn2S4 with High Visible Light Response via Microwave-assisted One-step Method and Its Multipathway Photoelectron Migration Properties for Hydrogen Evolution and Pollutant Degradation [J].

Chen, Xi ;

Li, Li ;

Zhang, Wenzhi ;

Li, Yixuan ;

Song, Qiang ;

Dong, Li .

ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2016, 4 (12) :6680-6688

[8] Enhanced photogenerated carrier separation in CdS quantum dot sensitized ZnFe2O4/ZnIn2S4 nanosheet stereoscopic films for exceptional visible light photocatalytic H2 evolution performance [J].

Chen, Yajie ;

Tian, Guohui ;

Zhou, Wei ;

Xiao, Yuting ;

Wang, Jinge ;

Zhang, Xin ;

Fu, Honggang .

NANOSCALE, 2017, 9 (18) :5912-5921

[9] Heterogeneous photocatalytic reduction of Cr(VI) in UV-irradiated titania suspensions: Effect of protons, ammonium ions, and other interfacial aspects [J].

Chenthamarakshan, CR ;

Rajeshwar, K .

LANGMUIR, 2000, 16 (06) :2715-2721

[10] Hexagonal 2H-MoSe2 broad spectrum active photocatalyst for Cr(VI) reduction [J].

Chu, Haipeng ;

Liu, Xinjuan ;

Liu, Baibai ;

Zhu, Guang ;

Lei, Wenyan ;

Du, Huigang ;

Liu, Junying ;

Li, Jianwei ;

Li, Can ;

Sun, Changqing .

SCIENTIFIC REPORTS, 2016, 6

← 1 2 3 4 5 →