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In situ growing of Bi/Bi2O2CO3 on Bi2WO6 nanosheets for improved photocatalytic performance
Catalysis Today ( IF 5.2 ) Pub Date : 2017-12-05 , DOI: 10.1016/j.cattod.2017.12.001
Jie Liu , Ying Li , Ziwei Li , Jun Ke , Huining Xiao , Yang Hou

A novel ternary hybrid photocatalyst Bi/Bi2O2CO3/Bi2WO6 is fabricated by a facial one-pot hydrothermal method, through the in situ growth of Bi and Bi2O2CO3 on the surface of 2D Bi2WO6 nanosheets. The Bi/Bi2O2CO3/Bi2WO6 hybrid exhibits the significantly enhanced photocatalytic activity, evaluated by the photo-oxidation of methylene blue (MB) and chlorobenzene. The improved photocatalytic activity is attributed to the surface plasmon resonance (SPR) effect of metallic Bi and the formation of the heterojunction among the three components in Bi/Bi2O2CO3/Bi2WO6 hybrid. The SPR effect of Bi nanoparticles leads to the great light response ability to the entire UV–vis light. And the SPR effect of metallic Bi, combined with Bi2O2CO3/Bi2WO6 heterojunction, also facilitates the rapid separation and transferring of the photogenerated charge carries, as well as the efficient suppression of the recombination of photogenerated electrons and holes.



中文翻译:

Bi / Bi 2 O 2 CO 3在Bi 2 WO 6纳米片上原位生长以提高光催化性能

通过表面一锅水热法,通过Bi和Bi 2 O 2 CO 3在2D Bi 2表面上原位生长,制备了新型三元杂化光催化剂Bi / Bi 2 O 2 CO 3 / Bi 2 WO 6。 WO 6纳米片。Bi / Bi 2 O 2 CO 3 / Bi 2 WO 6通过亚甲基蓝(MB)和氯苯的光氧化评估,杂种显示出显着增强的光催化活性。改善的光催化活性归因于金属Bi的表面等离振子共振(SPR)效应和Bi / Bi 2 O 2 CO 3 / Bi 2 WO 6杂化物中三个组分之间的异质结形成。Bi纳米粒子的SPR效应导致了对整个UV-vis光的强大光响应能力。以及与Bi 2 O 2 CO 3 / Bi 2 WO 6结合的金属Bi的SPR效应 异质结还有助于快速分离和转移光生电荷载流子,并有效抑制光生电子和空穴的复合。

更新日期:2017-12-05
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