Sonochemical synthesis and characterization of Cl-doped TiO2 and its application in the photodegradation of phthalate ester under visible light irradiation

被引：79
作者：
Wang, Xi-Kui [1 ,2 ]
Wang, Chen [1 ,2 ]
Jiang, Wen-Qiang [1 ,2 ]
Guo, Wei-Lin [3 ]
Wang, Jing-Gang [3 ]
机构：
[1] Shandong Polytech Univ, Sch Light Chem & Environm Engn, Jinan 250353, Peoples R China
[2] Shandong Key Lab Cleaner Prod & Reuse Ind Waste, Jinan 250353, Peoples R China
[3] Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2012年 / 189卷
关键词：
Chlorine-doped TiO2; Sonochemical synthesis; Photodegradation; Butyl benzyl phthalate; HIGH PHOTOCATALYTIC ACTIVITY; TITANIUM-DIOXIDE; NANOCRYSTALLINE TIO2; DIMETHYL PHTHALATE; AQUEOUS-SOLUTION; DEGRADATION; NITROGEN; POWDERS; TEMPERATURE; POLLUTANTS;
D O I：
10.1016/j.cej.2012.02.078
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Chlorine-doped anatase titanium dioxide (TiO2) nanocrystallites were prepared via a simple single-step method by sonicating a solution of tetraisopropyl titanate and sodium chloride in water/ethanol at 70 degrees C. The as-prepared sample was characterized using X-ray diffraction, transmission electron microscopy, Xray photoelectron spectroscopy, and ultraviolet-visible spectroscopy. The presence of the chloride dopant is confirmed by the Cl 2p XPS peak with a binding energy of 198.2 eV, which is assigned to the anionic Cl incorporated into TiO2. Cl-doping of TiO2 shifts the absorption edge toward a higher wavelength. The as-prepared samples were successfully used in the photodegradation of aqueous butyl benzyl phthalate (BBP) under visible light irradiation. The photodegradation rates of BBP reached 92% under visible light irradiation for 240 min. BBP mineralization was also realized by further increasing the irradiation time. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：288 / 294
页数：7
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