Surface Reconstruction-Associated Partially Amorphized Bismuth Oxychloride for Boosted Photocatalytic Water Oxidation,ACS Applied Materials & Interfaces

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Surface Reconstruction-Associated Partially Amorphized Bismuth Oxychloride for Boosted Photocatalytic Water Oxidation
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-01-21 , DOI: 10.1021/acsami.0c20338
Cheng Huang ₁ , Sirong Zou ₂ , Ye Liu ₃ , Shilin Zhang ₃ , Qingqing Jiang ₁ , Tengfei Zhou _{2,

3} , Sen Xin ₄ , Juncheng Hu ₁

Affiliation

The molecule water activation is believed to be one of the most critical steps that is closely related to the proceeding of photoinduced reaction, such as overall water splitting, carbon dioxide conversion, and organic contaminant degradation. As metal oxides possessing a regular structure with high crystallinity are widely accepted as promising for effective catalysis, numerous studies have been devoted to the relevant photoinduced applications. However, their irregular derivative phases with lower crystallinity, which could exhibit tempting opportunities for catalytic activities, have long been ignored. Here, the surface-amorphized bismuth oxychloride is produced by homogeneous nanoparticle distribution through a rapid precipitation strategy. Comparing with its surface-crystallized counterpart, the partially amorphized bismuth oxychloride undergoes a fast surface reconstruction process under light irradiation, forming active surfaces with rich oxygen vacancies (OVs), leading to not only distinctive OV-mediated interfacial charge-transfer mechanisms with improved carrier dynamics but also robust water–surface interface with enhanced physical and chemical interaction, thus resulting in enhanced photocatalytic water oxidation. The strategy of optimizing by tuning the interfacial interaction behavior proposed in this work could broaden horizons for establishing more efficient partially amorphized energy conversion materials.

中文翻译：

表面重建相关的部分非晶态氧化铋用于增强光催化水氧化

分子水活化被认为是与光诱导反应的进行密切相关的最关键的步骤之一，例如整体水分解，二氧化碳转化和有机污染物的降解。由于具有高结晶度的规则结构的金属氧化物被公认为有效催化的有前景，因此许多研究致力于相关的光诱导应用。然而，它们的低结晶度的不规则衍生物相，可能表现出诱人的催化活性机会，长期以来一直被忽略。在此，通过快速沉淀策略通过均匀的纳米颗粒分布来生产表面非晶态的氯氧化铋。与表面结晶的对应物相比，部分非晶态的氯氧化铋在光照射下经历了快速的表面重建过程，形成了具有丰富的氧空位（OVs）的活性表面，不仅导致了独特的OV介导的界面电荷转移机制，从而改善了载流子动力学，而且还增强了水-表面界面具有增强的物理和化学相互作用，从而导致增强的光催化水氧化。通过调整这项工作中提出的界面相互作用行为进行优化的策略可以拓宽建立更有效的部分非晶化能量转换材料的视野。不仅导致独特的OV介导的界面电荷转移机制具有改善的载流子动力学，而且导致鲁棒的水-表面界面具有增强的物理和化学相互作用，从而导致增强的光催化水氧化。通过调整这项工作中提出的界面相互作用行为进行优化的策略可以拓宽建立更有效的部分非晶化能量转换材料的视野。不仅导致独特的OV介导的界面电荷转移机制具有改善的载流子动力学，而且导致鲁棒的水-表面界面具有增强的物理和化学相互作用，从而导致增强的光催化水氧化。通过调整这项工作中提出的界面相互作用行为进行优化的策略可以拓宽建立更有效的部分非晶化能量转换材料的视野。

更新日期：2021-02-03

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