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

被引：20

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

页码：96 / 100

页数：5

共 27 条

[1] Alalm M. G., 2016, WATER TREAT, V57, P835
[2] Preparation of Ag nanoparticles loaded TiO2 nanoplate arrays on activated carbon fibers with enhanced photocatalytic activity
Ao, Yanhui
Xu, Junling
Gao, Yinyin
Wang, Peifang
Wang, Chao
Hou, Jun
Qian, Jin
[J]. CATALYSIS COMMUNICATIONS, 2014, 53 : 21 - 24
[3] TiO2-activated carbon photocatalysts: Preparation, characterization and photocatalytic activities
Asilturk, Meltem
Sener, Sadiye
[J]. CHEMICAL ENGINEERING JOURNAL, 2012, 180 : 354 - 363
[4] Synthesis and photocatalytic properties of Palladium-loaded three dimensional flower-like anatase TiO2 with dominant {001} facets
Bai, Xue
Lv, Lingling
Zhang, Xiaoyuan
Hua, Zulin
[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2016, 467 : 1 - 9
[5] Anatase TiO2 mesocrystals with exposed (001) surface for enhanced photocatalytic decomposition capability toward gaseous styrene
Chen, Jiangyao
Li, Guiying
Zhang, Haimin
Liu, Porun
Zhao, Huijun
An, Taicheng
[J]. CATALYSIS TODAY, 2014, 224 : 216 - 224
[6] Synthesis, characterization and photocatalytic activity of noble metal-modified TiO2 nanosheets with exposed {001} facets
Diak, Magdalena
Grabowska, Ewelina
Zaleska, Adriana
[J]. APPLIED SURFACE SCIENCE, 2015, 347 : 275 - 285
[7] Preparation of silica mesoporous nanoparticles functionalized with β-cyclodextrin and its application for methylene blue removal
Ebadi, Azra
Rafati, Amir Abbas
[J]. JOURNAL OF MOLECULAR LIQUIDS, 2015, 209 : 239 - 245
[8] A review of solar and visible light active TiO2 photocatalysis for treating bacteria, cyanotoxins and contaminants of emerging concern
Fagan, Rachel
McCormack, Declan E.
Dionysiou, Dionysios D.
Pillai, Suresh C.
[J]. MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2016, 42 : 2 - 14
[9] Noble metal modified TiO2 microspheres: Surface properties and photocatalytic activity under UV-vis and visible light
Grabowska, E.
Marchelek, M.
Klimczuk, T.
Trykowski, G.
Zaleska-Medynska, A.
[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2016, 423 : 191 - 206
[10] Fe3+:Ag/TiO2 nanocomposite: Synthesis, characterization and photocatalytic activity under UV and visible light irradiation
Harifi, Tina
Montazer, Majid
[J]. APPLIED CATALYSIS A-GENERAL, 2014, 473 : 104 - 115

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