Photocatalytic performance of BiPO4 nanorods adjusted via defects

IF 3.5 3区医学 Q2 CHEMISTRY, MEDICINAL

ACS Medicinal Chemistry Letters Pub Date : 2016-06-15 DOI:10.1016/j.apcatb.2016.01.012

Yanyan Zhu , Qiang Ling , Yanfang Liu , Hua Wang , Yongfa Zhu

引用次数: 130

Abstract

The effect of defect on the photocatalytic and photoelectric performance of BiPO₄ has been revealed. The bulk defects of BiPO₄ such as bismuth vacancies (V_Bi), oxygen vacancies (V_O) and so on were formed during the ball-milling process. These bulk defects of BiPO₄ inhibited the separation of photo-generated charges greatly and thus reduced photocatalytic activity. Most of the bulk defects were repaired and the photocatalytic activity of BiPO₄ was also recovered mostly via calcination and reflux. Reflux could repair the bulk defects of BiPO₄ much better than calcination. The mechanism of the photocatalytic degradation of pollutants over BiPO₄ was not changed by defects, and the main oxidation active species of BiPO₄ is photo-generated hole.

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通过缺陷调节的BiPO4纳米棒的光催化性能

揭示了缺陷对BiPO4光催化性能和光电性能的影响。在球磨过程中形成了铋空位(VBi)、氧空位(VO)等本体缺陷。BiPO4的这些体积缺陷极大地抑制了光生电荷的分离，从而降低了光催化活性。通过煅烧和回流，修复了大部分体积缺陷，恢复了BiPO4的光催化活性。回流对BiPO4本体缺陷的修复效果明显优于煅烧。缺陷不改变BiPO4光催化降解污染物的机理，BiPO4的主要氧化活性物质为光生空穴。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Medicinal Chemistry Letters CHEMISTRY, MEDICINAL-

CiteScore

7.30

自引率

2.40%

发文量

328

审稿时长

1 months

期刊介绍： ACS Medicinal Chemistry Letters is interested in receiving manuscripts that discuss various aspects of medicinal chemistry. The journal will publish studies that pertain to a broad range of subject matter, including compound design and optimization, biological evaluation, drug delivery, imaging agents, and pharmacology of both small and large bioactive molecules. Specific areas include but are not limited to: Identification, synthesis, and optimization of lead biologically active molecules and drugs (small molecules and biologics) Biological characterization of new molecular entities in the context of drug discovery Computational, cheminformatics, and structural studies for the identification or SAR analysis of bioactive molecules, ligands and their targets, etc. Novel and improved methodologies, including radiation biochemistry, with broad application to medicinal chemistry Discovery technologies for biologically active molecules from both synthetic and natural (plant and other) sources Pharmacokinetic/pharmacodynamic studies that address mechanisms underlying drug disposition and response Pharmacogenetic and pharmacogenomic studies used to enhance drug design and the translation of medicinal chemistry into the clinic Mechanistic drug metabolism and regulation of metabolic enzyme gene expression Chemistry patents relevant to the medicinal chemistry field.