Novel three-dimensionally ordered macroporous Fe3+-doped TiO2 photocatalysts for H2 production and degradation applications
Novel three-dimensionally ordered macroporous Fe3+-doped TiO2 photocatalysts for H2 production and degradation applications
复制标题
用于氢气生产和降解应用的新型三维有序大孔 Fe3 掺杂 TiO2 光催化剂
DOI：
10.1016/j.apsusc.2016.10.077
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发表时间：
2017-02
影响因子：
6.7
通讯作者：
Yang Guidong
中科院分区：
文献类型：
--
作者：
Yan xiaoqing;Xue chao;Yang Bolun;Yang Guidong
以三价铁、异丙醇、钛酸四丁酯和聚甲基丙烯酸甲酯为原料，采用胶体晶体模板法制备了新型三维有序大孔（3DOM）Fe 3+掺杂TiO 2光催化剂。采用多种分析技术对所制备的3DOM Fe 3+掺杂TiO 2光催化剂进行了表征。TEM和SEM结果表明，所制备的光催化剂具有三维有序的大孔结构。XPS和EDX分析表明，Fe 3+离子已引入到TiO 2晶格中，掺杂后的Fe 3+离子作为电子受体/供体中心，显著增强了电子从TiO 2体相到表面的转移，使更多的电子参与氧还原过程，从而降低了光生电荷的复合速率。同时，具有界面化学反应活性中心和光吸收活性中心的3DOM结构有利于光反应过程中的反应物转移和光捕获。结果表明，在可见光照射下，3DOM Fe 3+掺杂的TiO 2光催化剂对罗丹明B（RhB）的分解和氢气的生成具有较高的光催化活性，这是由于其开放的、相互连接的大孔网络和金属离子掺杂的协同作用。
Novel three-dimensionally ordered macroporous (3DOM) Fe3+-doped TiO2photocatalysts were prepared using a colloidal crystal template method with low-cost raw material including ferric trichloride, isopropanol, tetrabutyl titanate and polymethyl methacrylate. The as-prepared 3DOM Fe3+-doped TiO2photocatalysts were characterized by various analytical techniques. TEM and SEM results showed that the obtained photocatalysts possess well-ordered macroporous structure in three dimensional orientations. As proved by XPS and EDX analysis that Fe3+ions have been introduced TiO2lattice and the doped Fe3+ions can act as the electron acceptor/donor centers to significantly enhance the electron transfer from the bulk to surface of TiO2, resulting in more electrons could take part in the oxygen reduction process thereby decreasing the recombination rate of photogenerated charges. Meanwhile, the 3DOM architecture with the feature of interfacial chemical reaction active sites and optical absorption active sites is remarkably favorable for the reactant transfer and light trapping in the photoreaction process. As a result, the 3DOM Fe3+-doped TiO2photocatalysts show the considerably higher photocatalytic activity for decomposition of the Rhodamine B (RhB) and the generation of hydrogen under visible light irradiation due to the synergistic effects of open, interconnected macroporous network and metal ion doping.
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影响因子：
8.6
作者：
Holland, BT;Blanford, CF;Stein, A
通讯作者：
Stein, A
DOI：
10.1021/la200111j
发表时间：
2011-03
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
Zhongyu Cai;J. Teng;Z. Xiong;Yanqiang Li;Qin Li;Xianmao Lu;X. S. Zhao
通讯作者：
Zhongyu Cai;J. Teng;Z. Xiong;Yanqiang Li;Qin Li;Xianmao Lu;X. S. Zhao
影响因子：
6.7
作者：
Yamashita, Toru;Hayes, Peter
通讯作者：
Hayes, Peter
影响因子：
22.1
作者：
Guidong Yang;Zheng Jiang;Huahong Shi;M. Jones;T. Xiao;P. Edwards;Zifeng Yan
通讯作者：
Guidong Yang;Zheng Jiang;Huahong Shi;M. Jones;T. Xiao;P. Edwards;Zifeng Yan
影响因子：
22.1
作者：
Banisharif, Alireza;Khodadadi, Abbas Ali;Menbari, Sadra
通讯作者：
Menbari, Sadra