Persistent adsorptive desulfurization enhancement of TiO₂ after one-time ex-situ UV-treatment

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• 作者：Xueni Sun^a ; A.H.M. Shahadat Hussain^b ; Mingyang Chi^b ; Xinquan Cheng^b ; Bruce J. Tatarchuk^b ; ^{brucet@eng.auburn.edu}
• 关键词：Desulfurization ; Adsorption ; Titanium dioxide ; Hydroxyl group ; UV ; In-situ IR ; XPS
• 刊名：Fuel
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：193
• 期：Complete
• 页码：95-100
• 全文大小：1024 K
• 卷排序：193

文摘

One-time ex-situ UV-treatment before breakthrough experiments improved desulfurization performance of TiO2 by 50%. TiO2 was able to maintain excellent desulfurization performance after ex-situ UV-treatment. Sulfur removal species generated after photo-treatment on TiO2 were proven to be stable after the thermal regeneration step. Photo-induced sulfur removal active sites on TiO2 were observed via in-situ IR and XPS.