Synergistic effect of surface phase junction and surface defects on enhancing the photocatalytic performance of BiPO4

Synergistic effect of surface phase junction and surface defects on enhancing the photocatalytic performance of BiPO4
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表面相结和表面缺陷对增强BiPO4光催化性能的协同作用

DOI:
10.1049/mnl.2017.0620
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发表时间:
2018-05
影响因子:
1.3
通讯作者:
Hou Jun
Hou Jun
中科院分区:
材料科学4区
文献类型:
--
作者:
Feng Xianyong;Wang Peifang;Qian Jin;Ao Yanhui;Wang Chao;Hou Jun

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在这项工作中,有缺陷的BiPO4与表面相结(BPJ)的合成使用一个简单的球磨方法。发现BPJ的相组成包括独居石单斜BiPO4和单斜BiPO4。通过改变球磨条件,可以控制BPJ表面缺陷。与BiPO4和BPJ相比,优化样品在紫外光照射下的光催化性能显著提高。光催化性能的提高是由于表面相结和表面缺陷的协同作用,显著提高了光生电荷的分离和转移效率。
In this work, defective BiPO4 with surface phase junction (BPJ) was synthesised using a facile ball-milling method. The phase composition of BPJ was found to include monazite monoclinic BiPO4 and monoclinic BiPO4. Surface defects on BPJ could be controlled by changing ball-milling conditions. The optimal sample exhibited significantly enhanced photocatalytic performance compared with BiPO4 and BPJ under ultraviolet light irradiation. The enhancement of photocatalytic performance was due to the synergistic effect of the surface phase junction and surface defects, which significantly improved the separation and transfer efficiency of photogenerated charges.
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