Facile synthesis of the Ti3+ self-doped TiO2-graphene nanosheet composites with enhanced photocatalysis.
Facile synthesis of the Ti3+ self-doped TiO2-graphene nanosheet composites with enhanced photocatalysis.
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轻松合成具有增强光催化作用的 Ti3 自掺杂 TiO2-石墨烯纳米片复合材料
DOI：
10.1038/srep08591
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发表时间：
2015-02-26
影响因子：
4.6
通讯作者：
Zhang J
中科院分区：
文献类型：
--
作者：
Qiu B;Zhou Y;Ma Y;Yang X;Sheng W;Xing M;Zhang J
采用真空一步活化法制备了Ti 3+自掺杂TiO 2-石墨烯光催化剂，该方法利用Ti 3+掺杂、表面新键生成和石墨烯还原的协同作用，在较低温度下实现了可见光活化。与传统方法相比，真空活化法温度低、成本低，可以同时实现GO的还原、Ti 3+在TiO 2中的自掺杂和纳米TiO 2在GR表面的负载。这些得到的TiO 2-石墨烯复合材料显示出高的MO光降解速率，高的析氢活性和优异的IPCE在可见光照射下。真空活化法是提高TiO 2-石墨烯及其他金属氧化物-石墨烯光催化性能的有效途径。
This study developed a facile approach for preparing Ti3+ self-doped TiO2-graphene photocatalyst by a one-step vacuum activation technology involved a relative lower temperature, which could be activated by the visible light owing to the synergistic effect among Ti3+ doping, some new intersurface bonds generation and graphene oxide reduction. Compared with the traditional methods, the vacuum activation involves a low temperature and low-costing, which can achieve the reduction of GO, the self doping of Ti3+ in TiO2 and the loading of TiO2 nanoparticles on GR surface at the same time. These resulting TiO2-graphene composites show the high photodegradation rate of MO, high hydrogen evolution activity and excellent IPCE in the visible light irradiation. The facile vacuum activation method can provide an effective and practical approach to improve the performance of TiO2-graphene and other metal oxides-graphene towards their practical photocatalytic applications.
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影响因子：
15
作者：
HUMMERS, WS;OFFEMAN, RE
通讯作者：
OFFEMAN, RE
影响因子：
3.7
作者：
Bell, Nicholas J.;Ng, Yun Hau;Amal, Rose
通讯作者：
Amal, Rose
影响因子：
2.1
作者：
Yang, Jing;Bai, Haizan;Lian, Hanshe
通讯作者：
Lian, Hanshe
影响因子：
16.6
作者：
Mao, Chengyu;Zuo, Fan;Feng, Pingyun
通讯作者：
Feng, Pingyun
影响因子：
56.9
作者：
Chen, Xiaobo;Liu, Lei;Mao, Samuel S.
通讯作者：
Mao, Samuel S.