Microwave-assisted rapid synthesis of Ag-β-cyclodextrin/TiO2/AC with exposed {001} facets for highly efficient naphthalene degradation under visible tight

被引：21
作者：
Chen, Xiaoqing [1 ]
Liu, Dandan [1 ]
Wu, Zhansheng [1 ]
Cravotto, Giancarlo [2 ,3 ]
Wu, Zhilin [2 ,3 ]
Ye, Bang-Ce [1 ]
机构：
[1] Shihezi Univ, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Sch Chem & Chem Engn, Shihezi 832003, Peoples R China
[2] Univ Turin, Dipto Sci & Tecnol Farmaco, Via P Giuria 9, I-10125 Turin, Italy
[3] Univ Turin, NIS Ctr Nanostruct Interfaces & Surfaces, Via P Giuria 9, I-10125 Turin, Italy
来源：
CATALYSIS COMMUNICATIONS | 2018年 / 104卷
关键词：
Microwave-assisted synthesis; TiO2/activated carbon; {001} facets; Photocatalyst; Naphthalene degradation; PHOTOCATALYTIC ACTIVITY; ANATASE TIO2; ACTIVATED CARBON; SURFACE; SUSPENSION; DYES; UV;
D O I：
10.1016/j.catcom.2017.10.026
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：
This study describes the microwave-assisted one-step synthesis of Ag and beta-cyclodextrin (beta-CD) co-doped titanium dioxide nanoparticles loaded onto activated carbon (TiO2/AC) with dominating {001} facets, using NaF as a morphology controlling agent, for photocatalytic degradation of naphthalene. F doping inhibited the anataseto-rutile phase transformation. A red shift in the absorption edge in the UV visible spectra was observed when beta-CD and Ag co-doped TiO2. F-Ag-beta-CD/TiO2/AC with exposed {001} facets exhibited the highest photocatalytic activity (98.4%) and rate constant under visible-light irradiation. The photocatalyst also displayed excellent photocatalytic stability. Hydroxyl radicals (center dot OH) play an important role in naphthalene photodegradation.
引用
收藏
页码：96 / 100
页数：5
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