磷酸修饰的RGO-BiOBr纳米复合体的制备及其光电化学性质研究

CORC > 厦门大学 > 2016年第22卷

	磷酸修饰的RGO-BiOBr纳米复合体的制备及其光电化学性质研究; Preparations and Photoelectrochemical Properties of Phosphate Modified RGO-BiOBr Nanocomposites
	陈双影 ; 李志君 ; 张旭良 ; 胡康 ; 闫蕊 ; 井立强 ; CHEN Shuang-ying ; LI Zhi-jun ; ZHANG Xu-liang ; HU Kang ; YAN Rui ; JING Li-qiang
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract10267.shtml
	2016-08-29
关键词	RGO-BiOBr纳米复合体磷酸修饰光生电荷性质光电化学 RGO-BiOBr nano-composite Phosphoric acid modification Photogenerated charge property Photoelectrochemistry
英文摘要	本文通过水热法一步合成了还原氧化石墨烯(RGO)-BiOBr纳米复合体，并进一步对其进行磷酸修饰. 主要研究了所获得的纳米复合体的光电化学性质. 结果表明，与纯BiOBr相比，RGO-BiOBr复合体的光电流密度明显提高. 适量磷酸修饰后，其光电流密度进一步得到提高. 基于羟基自由基等测试结果，分析认为磷酸修饰的RGO-BiOBr纳米复合体光电流密度的提高主要归因于两方面：一是复合的还原氧化石墨烯能够接受光生电子，加快电子的转移，进而促进光生电荷的有效分离；二是复合体表面修饰的磷酸在溶液中电离形成负场，能够起到诱导光生空穴的作用，进一步促进了光生电荷的分离.; The RGO-BiOBr nanocomposites have been successfully synthesized by a hydrothermal process, and then modified with phosphorous acids. The photoelectrochemical properties of the fabricated RGO-BiOBr nanocomposite films were studied. The results indicate that the photocurrent densities of RGO-BiOBr were much larger compared with those of the bare BiOBr, and interestingly, the photocurrent densities were further improved after phosphate modification. Based on the analyses of the produced hydroxyl radical amounts, the enhanced photocurrent densities could be attributed to the introduction of RGO and to the formed negative fields of modified phosphate groups, which are favorable for electrons to be transferred and for holes to be trapped, respectively, leading to promoted charge separation.; 基金项目: 国家自然科学联合基金重点项目 (U1401245)；973计划前期研究专项课题（2014CB660814）；教育部创新团队发展计划项目 (IRT1237); 教育部科学技术研究项目 (213011A); 作者联系地址：黑龙江大学化学化工与材料学院,功能无机材料化学教育部重点实验室,哈尔滨 150080; Author's Address: Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China; 通讯作者E-mail：jinglq@hlju.edu.cn
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dx.doi.org/10.13208/j.electrochem.160144]
专题	2016年第22卷
推荐引用方式 GB/T 7714	陈双影,李志君,张旭良,等. 磷酸修饰的RGO-BiOBr纳米复合体的制备及其光电化学性质研究, Preparations and Photoelectrochemical Properties of Phosphate Modified RGO-BiOBr Nanocomposites[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract10267.shtml,2016.
APA	陈双影.,李志君.,张旭良.,胡康.,闫蕊.,...&JING Li-qiang.(2016).磷酸修饰的RGO-BiOBr纳米复合体的制备及其光电化学性质研究.http://electrochem.xmu.edu.cn/CN/abstract/abstract10267.shtml.
MLA	陈双影,et al."磷酸修饰的RGO-BiOBr纳米复合体的制备及其光电化学性质研究".http://electrochem.xmu.edu.cn/CN/abstract/abstract10267.shtml (2016).