In situ surface assembly of core-shell TiO2-copper(I) cluster nanocomposites for visible-light photocatalytic reduction of Cr(VI)

被引：17
|
作者：
Ji, Wei [1 ]
Qu, Jian [1 ,2 ]
Li, Cheng-An [1 ]
Wu, Jing-Wei [1 ]
Jing, Su [1 ]
Gao, Fei [3 ]
Lv, Yi-Nong [4 ]
Liu, Chang [4 ]
Zhu, Dun-Ru [4 ]
Ren, Xiao-Min [1 ]
Huang, Wei [2 ]
机构：
[1] Nanjing Tech Univ, Sch Chem & Mol Engn, Nanjing 211816, Jiangsu, Peoples R China
[2] Nanjing Tech Univ, Inst Adv Mat, Nanjing 210009, Jiangsu, Peoples R China
[3] Nanjing Univ, Jiangsu Key Lab Vehicle Emiss Control, Ctr Modern Anal, Nanjing 210093, Jiangsu, Peoples R China
[4] Nanjing Tech Univ, Sch Chem & Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2017年 / 205卷
关键词：
Polymeric [Cu2I2L2](n) cluster; Selenoanthracene; TiO2; Charge-transfer complex; Visible-light photocatalyst; SENSITIZED SOLAR-CELLS; MULTIWALLED CARBON NANOTUBES; COPPER(I) DIIMINE COMPLEXES; PI-PI INTERACTION; MECHANOCHROMIC LUMINESCENCE; IMPROVING PERFORMANCE; ELECTRON INJECTION; TIO2; NANOPARTICLES; CATALYTIC-ACTIVITY; TITANIUM-DIOXIDE;
D O I：
10.1016/j.apcatb.2016.12.041
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：
1D loop chain copper(I) cluster, [Cu2I2L2](n), can be obtained based upon 9-(3-phenylselanyl-2-phenylselanylmethylpropyl)anthracene (L) and CuI. A facile in situ surface assembly strategy was designed to construct polymeric [Cu2I2L2](n), on the surface of TiO2 nanoparticles. The visible-light photocatalytic property of core-shell TiO2-[Cu2I2L2](n). was confirmed by effective reduction of aqueous chromium(VI), showing a clear correlation to optical absorption (Eg = 2.8 eV). The key points of this strategy include high reactivity between copper(I) and soft selenium atom, efficient charge-transfer through polymeric cluster shell, and visible-light photoactivity of copper(I) halogen clusters. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：368 / 375
页数：8
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