Leaf-like hybrid of bismuth subcarbonate nanotubes/graphene sheet with highly efficient photocatalytic activities

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• 作者：Yanping Tang^a ; ¹ ; Chongqing Yang^a ; ¹ ; Kan Li^b ; Fan Jing^a ; Ruili Liu^c ; Dongqing Wu^a ; ^{wudongqing@sjtu.edu.cn} ; Jinping Jia^b ; ^{jpjia@sjtu.edu.cn}
• 关键词：Bismuth subcarbonate ; Graphene ; Photocatalysis ; Hierarchical structure ; Leaf-like
• 刊名：Journal of Colloid and Interface Science
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：491
• 期：Complete
• 页码：273-278
• 全文大小：2005 K
• 卷排序：491

文摘

In this work, leaf-like hybrid with Bi2O2CO3 nanotubes as the “veins” and graphene sheet as the “laminae” is fabricated via a facile one-pot reaction of bismuth nitrate and graphene oxide in alkaline aqueous solution. With the uniform distribution of Bi2O2CO3 nanotubes on the graphene substrate, the obtained Bi2O2CO3-NT/G manifests high specific surface area (90.4 m2 g−1) and large pore volume (0.197 cm3 g−1), which are favorable for the efficient light capturing together with the rapid transfer of mass and charge carriers. In comparison with the pure Bi2O2CO3 nanotubes and commercial Bi2O2CO3, Bi2O2CO3-NT/G exhibits much enhanced activity and long-term stability towards the photocatalytic degradation of organic dye pollutant, which is owing to its unique leaf-like structural features.