Growth and Photocatalytic Activities of Porous ZnO/TiO2 Composite Microspheres with Crystalline–Amorphous Phase Boundary
Growth and Photocatalytic Activities of Porous ZnO/TiO2 Composite Microspheres with Crystalline–Amorphous Phase Boundary
复制标题
晶-非晶相界多孔ZnO/TiO2复合微球的生长及其光催化活性
DOI：
10.1007/s10562-020-03463-x
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发表时间：
2020-11
影响因子：
2.8
通讯作者：
Yang Yang
中科院分区：
文献类型：
--
作者：
Siping Huo;Shiwen Ding;Chongyang Zhao;Chaoyue Wang;Fengjiao Yu;Jun Fang;Yang Yang
通过一步溶剂热法合成了具有蛋黄 - 壳微球形态的介孔ZnO/TiO₂复合材料。用无定形ZnO对结晶TiO₂微球进行改性，使得析氢的光催化活性均得到提高。
Mesoporous ZnO/TiO2 composites with the morphology of yolk-shell microspheres were synthesized via one-step solvothermal method. Modifying crystalline TiO2 microspheres with amorphous ZnO led to the enhancement of photocatalytic activity for both H2 evolution and degradation of organic dyes. Such improvement was mainly attributed to the heterostructure constructed between amorphous ZnO and crystalline TiO2. The mechanism of the growth for such heterostructural microspheres was discussed. The modulation of electronic structure and tuning of the atomic packing mode, along with its yolk-shell structure, would generate large quantities of unsaturated sites, leading to the much accessible adsorption of reactants and accelerating the surface reactions on the mixed phases. Besides, the efficient separation of photogenerated charges was facilitated by their appropriate interfacial band structures between ZnO and TiO2. Such synergetic effect resulted in the improvement of photocatalytic activities, and it provided new routes to better utilize amorphous materials in solar energy conversion. Favorable photocatalytic activity is achieved on ZnO/TiO2 composite microspheres by constructing amorphous/crystalline phase boundary with the optimal component percentage and porosity.
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影响因子：
3.3
作者：
BICKLEY, RI;GONZALEZCARRENO, T;TILLEY, RJD
通讯作者：
TILLEY, RJD
影响因子：
13.6
作者：
Zhonghai Zhang;Yuan Yuan-Yuan;Linhong Liang;Yuxiao Cheng;G. Shi;L. Jin
通讯作者：
Zhonghai Zhang;Yuan Yuan-Yuan;Linhong Liang;Yuxiao Cheng;G. Shi;L. Jin
影响因子：
22.1
作者：
Guo, Mu Yao;Ng, Alan Man Ching;Chan, Wai Kin
通讯作者：
Chan, Wai Kin
影响因子：
9.2
作者：
Guo, Siyao;Han, Song;Li, Jian
通讯作者：
Li, Jian
影响因子：
19
作者：
Lu, Fang;Cai, Weiping;Zhang, Yugang
通讯作者：
Zhang, Yugang