Modification of Bib>2b>WOb>6b> composites with rGO for enhanced visible light driven NO removal

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• 作者：L. Wang ; B. Sun ; W. Wang ; L. Feng ; Q. Li and C. Li
• 刊名：Asia-Pacific Journal of Chemical Engineering
• 出版年：2017
• 出版时间：January/February 2017
• 年：2017
• 卷：12
• 期：1
• 页码：121-127
• 全文大小：341K
• ISSN：1932-2143

文摘

Bib>2b>WOb>6b>-rGO composites were synthesized through hydrothermal method. Its visible-light-driven photocatalytic properties were evaluated by the oxidation of nitrogen monoxide, which exhibited significantly enhancement on the photocatalytic performance comparing with Bib>2b>WOb>6b>. Bib>2b>WOb>6b>–2% rGO showed the highest photocatalytic activity for NO removal. The enhanced photocatalytic activity can be attributed to the increased light absorption and more effective charge transportation and separation arisen from the strong chemical bonding between Bib>2b>WOb>6b> and rGO. The results on the effects of Hb>2b>O and SOb>2b> concentration to NO removal efficiency indicate that the activity of Bib>2b>WOb>6b>–2% rGO composite was suppressed by the coexisting of SOb>2b> while promoted by Hb>2b>O. In addition, the reaction mechanism of the photocatalytic oxidation of NO to NOb>2b> was also discussed.