SynthesisofCu-DopedMixed-PhaseTiO2withtheAssistanceofIonicLiquidbyAtmospheric-PressureColdPlasma

被引：0

作者：

詹志彬 ^{[1
]}

底兰波 ^{[1
,2
]}

张秀玲 ^{[1
,2
]}

李燕春 ^{[1
]}

机构：

[1] College of Physical Science and Technology,Dalian University

[2] Key Laboratory for Non-traditional & Functional Materials Preparation of Education Department of Liaoning Province,Dalian University

来源：

Plasma Science and Technology | 2016年 / 18卷 / 05期

关键词：

dielectric barrier discharge(DBD); gas-liquid cold plasma; atmospheric pressure; mixed-phase TiO2; Cu-doped;

D O I：

暂无

中图分类号：

O461.2 [各类型放电];

学科分类号：

0809 ; 080901 ;

摘要：

An atmospheric-pressure dielectric barrier discharge（DBD） gas-liquid cold plasma was employed to synthesize Cu-doped TiO2 nanoparticles in an aqueous solution with the assistance of[C2MIM]BF4 ionic liquid（IL） and using air as the working gas.The influences of the discharge voltage,IL and the amount of copper nitrite were investigated.X-ray diffraction,N2adsorption-desorption measurements and UV-Vis spectroscopy were adopted to characterize the samples.The results showed that the specific surface area of TiO2 was promoted with Cu-doping(from 57.6 m2·g-1 to 106.2 m2·g-1 with 3%Cu-doping),and the content of anatase was increased.Besides,the band gap energy of TiO2 with Cu-doping decreased according to the UV-Vis spectroscopy test.The 3%Cu-IL-TiO2 samples showed the highest efficiency in degrading methylene blue（MB） dye solutions under simulated sunlight with an apparent rate constant of 0.0223 min-1,which was 1.2 times higher than that of non-doped samples.According to the characterization results,the reasons for the high photocatalytic activity were discussed.

引用

页码：494 / 499

页数：6

共 13 条

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