TiO2 nanobelts with a uniform coating of g-C3N4 as a highly effective heterostructure for enhanced photocatalytic activities
TiO2 nanobelts with a uniform coating of g-C3N4 as a highly effective heterostructure for enhanced photocatalytic activities
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DOI：
10.1016/j.jssc.2014.08.016
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发表时间：
2014-12
影响因子：
3.3
通讯作者：
Xing Zhong;Meimei Jin;Huanneng Dong;Lin Liu;Lei Wang;Huiyou Yu;Shuai Leng;G. Zhuang;
中科院分区：
文献类型：
--
作者：
Xing Zhong;Meimei Jin;Huanneng Dong;Lin Liu;Lei Wang;Huiyou Yu;Shuai Leng;G. Zhuang;
成功地设计并制备了一种新型的g-C3N4/ tio2纳米带（NB）异质结构。制备的g-C3N4/TiO2NB异质结构不仅在光降解罗丹明B （RhB）方面表现出较高的光催化活性，而且在光催化产氢方面也表现出较高的光催化活性。质量比为1:1的g-C3N4/TiO2NB异质结构光降解RhB的性能最好，质量比为3:1的h2产率最高，为46.6 μmol h−1。我们认为g- c3n4和tio2 - nbs之间的协同作用促进了光生载流子的空间分离。这一对基于纳米结构的光催化剂的合理结构设计的宝贵见解有望在未来为其他光催化反应系统提供启示。
A novel g-C3N4/TiO2nanobelt (NB) heterostructure was successfully designed and prepared. The as-prepared g-C3N4/TiO2NB heterostructure exhibited high photocatalytic activity not only in the photodegradation of Rhodamine B (RhB) but also in photocatalytic H2production. The g-C3N4/TiO2NB heterostructure with a mass ratio of 1:1 demonstrated the best performance in the photodegradation of RhB, whereas a mass ratio of 3:1 demonstrated the highest H2production rate of 46.6 μmol h−1in photocatalytic H2production. We conclude that the synergistic effect between g-C3N4and TiO2NBs promotes the photogenerated carrier separation in space. This valuable insight into the rational architectural design of nanostructure-based photocatalysts is expected to shed light on other photocatalytic reaction systems in the future.