石油化工高等学校学报

石油化工高等学校学报 ›› 2019, Vol. 32 ›› Issue (6): 22-26.DOI: 10.3969/j.issn.1006-396X.2019.06.004

• 石油化工 • 上一篇    下一篇

二维纳米片金红石TiO2的可控合成及光催化性能

高文龙陈雪冰张静   

  1. (辽宁石油化工大学 化学化工与环境学部,辽宁 抚顺 113001)
  • 收稿日期:2019-04-15 修回日期:2019-05-24 出版日期:2019-12-25 发布日期:2019-12-24
  • 通讯作者: 张静(1980⁃),女,博士,教授,从事光催化、生物质催化转化、清洁能源材料开发等方面研究;E⁃mail:jingzhang_dicp@live.cn
  • 作者简介:高文龙(1991-),男,硕士研究生,从事光催化、光谱表征等方面研究;E-mail:1058011161@qq.com
  • 基金资助:
    国家自然科学基金(21573101);辽宁省高等学校创新人才支持计划(LR2017011);辽宁省百千万人才工程科技项目([2017]96);辽宁省自然科学基金重点项目(20180510002)

Controllable Synthesis and Photocatalytic Properties of 2D Nanosheets Rutile TiO2

Gao WenlongChen XuebingZhang Jing   

  1. (College of Chemistry, Chemical Engineering and Environmental Engineering,Liaoning Shihua University,Fushun Liaoning 113001,China)
  • Received:2019-04-15 Revised:2019-05-24 Published:2019-12-25 Online:2019-12-24

摘要: 采用水热法,低温条件下合成了二维纳米片状的金红石二氧化钛(TiO2)半导体材料,利用X射线衍射(XRD)、扫描电子显微镜(SEM)和表面光电压谱(SPV)研究了反应过程中HCl浓度对TiO2材料的晶相、结晶性、形貌、粒径和光电性能等性质的影响。结果表明,HCl浓度为3、5、7 mol/L时分别合成了微球、纳米片和纳米棒状的金红石TiO2;上述3种形貌的金红石TiO2均显示了高于采用焙烧法得到的金红石TiO2的光催化降解罗丹明B活性;与微球和纳米棒结构相比,纳米片金红石TiO2具有更加优异的光催化性能。SPV结果表明,纳米片金红石TiO2具有更高的光生电荷分离和迁移效率。

关键词: 二维纳米片, 金红石TiO2, 光催化, 罗丹明B

Abstract: A two⁃dimensional nano flake rutile titanium dioxide (TiO2) semiconductor material was synthesized under low temperature by hydrothermal method.The effects of HCl concentration on the crystalline phase,crystallinity,morphology,particle size and photoelectric properties of obtained TiO2 particles are studied using XRD,SEM and SPV.The results indicate that the micron spherical,nanosheets and nanorods rutile TiO2 particles can be synthesized by controlling the HCl concentration at 3,5,7 mol/L,respectively.Moreover,the photocatalytic performance of obtained rutile TiO2 particles is further investigated by degradation of rhodamine B. The results show that the activities of micron spherical,nanosheets and nanorods rutile TiO2 samples are higher than that of traditional rutile TiO2 sample obtained by calcination method.Compared with micron spherical and nanorods rutile TiO2 samples,2D nanosheets rutile TiO2 sample has better photocatalytic properties.SPV results reveal that the 2D nanosheets rutile TiO2 has a significant efficiency on photogenerated charges separation and migration.

引用本文

高文龙,陈雪冰,张静. 二维纳米片金红石TiO2的可控合成及光催化性能[J]. 石油化工高等学校学报, 2019, 32(6): 22-26.

Gao Wenlong,Chen Xuebing,Zhang Jing. Controllable Synthesis and Photocatalytic Properties of 2D Nanosheets Rutile TiO2[J]. Journal of Petrochemical Universities, 2019, 32(6): 22-26.

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