Preparation of Ce-TiO2/carbon aerogel electrode and its performance in degradation of 4-chlorophenol
来源期刊：JOURNAL OF RARE EARTHS2018年第4期
论文作者：Yabo Wang Zihong Pan Dezhi Qin Suzhen Bai Qinlong Peng
文章页码：374 - 378
摘 要：Ce-TiO2/CA（carbon aerogel） electrode was prepared by sol impregnation approach. The XRD（X-ray diffraction） and Raman spectra reveal that the TiO2 is anatase. The UV-vis diffuse reflectance spectra show that the optical absorption edge for Ce-TiO2/CA is red-shifted to 535 nm compared with TiO2/CA. Under visible light irradiation, the photocurrent density increment on Ce-TiO2/CA is 75 times that on Ce-TiO2/FTO（fluorine-doped tin oxide）. The electrochemical impedance spectroscopy reveals that the conductivity of CeTiO2/CA is much better than the Ce-TiO2/FTO. Furthermore, the Ce-TiO2/CA can be used to the highest electrosorptive photodegradation for 4-chlorophenol wastewater degradation, which is ascribed predominantly to the efficient reduction of electron-hole pair recombination in the photocatalysts.
Yabo Wang，Zihong Pan，Dezhi Qin，Suzhen Bai，Qinlong Peng
College of Chemistry and Environmental Engineering, Pingdingshan University
摘 要：Ce-TiO2/CA（carbon aerogel） electrode was prepared by sol impregnation approach. The XRD（X-ray diffraction） and Raman spectra reveal that the TiO2 is anatase. The UV-vis diffuse reflectance spectra show that the optical absorption edge for Ce-TiO2/CA is red-shifted to 535 nm compared with TiO2/CA. Under visible light irradiation, the photocurrent density increment on Ce-TiO2/CA is 75 times that on Ce-TiO2/FTO（fluorine-doped tin oxide）. The electrochemical impedance spectroscopy reveals that the conductivity of CeTiO2/CA is much better than the Ce-TiO2/FTO. Furthermore, the Ce-TiO2/CA can be used to the highest electrosorptive photodegradation for 4-chlorophenol wastewater degradation, which is ascribed predominantly to the efficient reduction of electron-hole pair recombination in the photocatalysts.
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