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Citation: SHEN Jian-Dong, ZHANG Shi-Cheng, LIAN Jin-Jun, KONG Ling-Dong, CHEN Jian-Min. Benz[a]anthracene Heterogeneous Photochemical Reaction on the Surface of TiO₂ Particles[J]. Acta Physico-Chimica Sinica, ;2007, 23(10): 1531-1536. doi: 10.1016/S1872-1508(07)60078-3 shu

Benz[a]anthracene Heterogeneous Photochemical Reaction on the Surface of TiO₂ Particles

1.
Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P. R. China

Received Date: 31 May 2007
Available Online: 1 August 2007

The photochemical reaction of benz[a]anthracene (B[a]A) on TiO₂ particles was investigated by using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and gas chromatography-mass spectrometry (GC-MS). It was confirmed that photocatalytic oxidation of benz[a]anthracene occured on the surface of TiO₂ particles, and the surface hydroxyl and oxygen participated in the reactions. The main photochemical product of benz [a] anthracene was benz [a] anthracene-7,12-dione. Possible photochemical mechanism of benz[a]anthracene was also proposed. Under the simulated sun light irradiation (22 mW·cm^-2), the process of benz[a]anthracene photodegration on TiO₂ particles matches the exponential decay equation, and the half-life time is 6.8 min.
- Benz[a]anthracene; TiO₂; Photochemical reaction; DRIFTS
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沈阳化工大学材料科学与工程学院沈阳 110142

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Benz[a]anthracene Heterogeneous Photochemical Reaction on the Surface of TiO2 Particles

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通讯作者: 陈斌, bchen63@163.com

Benz[a]anthracene Heterogeneous Photochemical Reaction on the Surface of TiO₂ Particles