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Citation: WANG Qingyuan, JIANG Hongquan, LI Jingshen, WANG Qiaofeng, LI Zhenyu. Kinetics of Nano-Sm-N-P-TiO₂ Induced Photocatalytic Degradation of 4-Chlorophenol Under Simulated Sunlight Irradiation[J]. Chinese Journal of Applied Chemistry, ;2014, 31(3): 310-315. doi: 10.3724/SP.J.1095.2014.30201 shu

Kinetics of Nano-Sm-N-P-TiO₂ Induced Photocatalytic Degradation of 4-Chlorophenol Under Simulated Sunlight Irradiation

1.
Key Laboratory of Design and Synthesis of Functional Materials and Green Catalysis, Colleges of Heilongjiang Province, Harbin Normal University, Harbin 150025, China

Corresponding author: JIANG Hongquan,
Received Date: 23 April 2013
Available Online: 30 May 2013
Fund Project: 黑龙江省高校科技创新团队建设计划(2011TD010) (2011TD010)黑龙江省教育厅科学技术研究资助项目(12531213) (12531213)

A novel high-performance Sm-N-P-TiO₂ nano-photocatalyst was successfully prepared by a modified sol-hydrothermal technique.Influence of condition factors on the photocatalytic degradation of 4-chlorophenol(4-CP) solution under simulated sunlight irradiation was investigated.Comparative research on the photoactivities of different catalysts was also carried out.The degrading reaction fits the first-order kinetics well under experimental conditions,and the degradation rate decreases with the increase of solution concentration.After irradiation under a 500 W Xenon lamp for 2 h,4-CP completely decomposed with the first order reaction rate constant(K_app) of 5.32×10^-2 min^-1 under the such conditions as initial concentration of 4-CP of 40 mg/L,Sm-N-P-TiO₂ dosage of 1.5 g/L,pH value of 5.2,solution temperature of 36℃.The photoactivity of Sm-N-P-TiO₂ is 3.49 times that of mixed-phase titania(P25).The TOC removal efficiency reaches 96.8%.
- TiO₂,
- Sm-N-P tridoping,
- chlorophenol,
- photocatalysis,
- kinetics
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沈阳化工大学材料科学与工程学院沈阳 110142

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Kinetics of Nano-Sm-N-P-TiO2 Induced Photocatalytic Degradation of 4-Chlorophenol Under Simulated Sunlight Irradiation

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通讯作者: 陈斌, bchen63@163.com

Kinetics of Nano-Sm-N-P-TiO₂ Induced Photocatalytic Degradation of 4-Chlorophenol Under Simulated Sunlight Irradiation