文献类型：期刊文献

英文题名：Nanoplasmonically Engineered Interfaces on Amorphous TiO2 for Highly Efficient Photocatalysis in Hydrogen Evolution

作者：Liang, Huijun[1,2];Meng, Qiuxia[1];Wang, Xiaobing[1];Zhang, Hucheng[1];Wang, Jianji[1]

第一作者：Liang, Huijun;梁慧君

通讯作者：Zhang, HC[1];Wang, JJ[1]

机构：[1]Henan Normal Univ, Key Lab Green Chem Media & React, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China;[2]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Henan, Peoples R China

第一机构：Henan Normal Univ, Key Lab Green Chem Media & React, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China

通讯机构：[1]corresponding author), Henan Normal Univ, Key Lab Green Chem Media & React, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Minist Educ,Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China.

年份：2018

卷号：10

期号：16

起止页码：14145-14152

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20181805112375);Scopus(收录号：2-s2.0-85045891313);WOS:【SCI-EXPANDED(收录号:WOS:000431150900097)】；

基金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant Nos. 21573059 and U1704251), Dr. Start-up Project Funding of Henan Normal University (qd16114). Innovation Funds for Postgraduate (Nos. YL201512 and YL2017xx).

语种：英文

外文关键词：amorphous TiO2; Ag/TiO2 composite; photocatalysis; hydrogen evolution; ethylene glycol

摘要：The nanoplasmonic metal-driven photocatalytic activity depends heavily on the spacing between metal nanoparticles (NPs) and semiconductors, and this work shows that ethylene glycol (EG) is an ideal candidate for interface spacer. Controlling the synthetic systems at pH 3, the composite of Ag NPs with EG-stabilized amorphous TiO2 (Ag/TiO2-3) was synthesized by the facile light-induced reduction. It is verified that EG spacers can set up suitable geometric arrangement in the composite: the twin hydroxyls act as stabilizers to bind Ag NPs and TiO2 together and the nonconductive alkyl chains consisting only of two CH2 are able to separate the two building blocks completely and also provide the shortest channels for an efficient transfer of radiation energies to reach TiO2. Employed as photocatalysts in hydrogen evolution under visible light, amorphous TiO2 hardly exhibits the catalytic activity due to high defect density, whereas Ag/TiO2-3 represents a remarkably high catalytic efficiency. The enhancement mechanism of the reaction rate is proposed by the analysis of the compositional, structural, and optical properties from a series of Ag/TiO2 composites.