Preparation of Bi2WO6 Photocatalyst and Its Application in the Photocatalytic Oxidative Desulfurizat

• 作 者: Gao Xiaoming Li Wenhong Fu Feng Wu Yufei Li Dong Wang Jiwu
• 机 构: College of Chemical Engineering, Northwest University, Xi’an 710069;College of Chemistry and Chemica
• 出 处: 中国炼油与石油化工（英文版）
• 发表日期: 2011年2期
• 关键词: Bi2WO6 thiophene photocatalysis desulfurization

A type of visible light photocatalyst Bi2WO6 was prepared from Bi(N0_3)_3.5H_2O and Na_2 WO_4.2H_2O by means of hydrothermal method and was characterized by UV vis diffuse reflectance spectrometry and XRD.Oxidative desulfurization via photocatalysis was investigated using thiophene dissolved in octane as the model compound,with hydrogen peroxide used as the oxidant.The effects of hydrogen peroxide mass fraction,irradiation time,dosage of photocatalyst Bi_2W0_6 on the desulfurization efficiency were also investigated.Under suitable conditions,the desulfurization rate of model compound reached over 70%.