Please wait a minute...
Acta Physico-Chimica Sinica  2001, Vol. 17 Issue (11): 1000-1005    DOI: 10.3866/PKU.WHXB20011109
Article     
Kinetics Modeling Study on Continuous Circulative Flow Immobilized Photocatalytic Reactor
Fan Shan-Hu;Yu Xiang-Yang;Zhan She-Xia;Chen Liu-Ping;Gu Xi-Lan;Li Yu-Guang;Shi Zhong-Bing
College of Chemistry and Chemical Engineering,Zhongshan University,State Key Laboratory of Ultrafast Laser Spectroscopy Zhongshan University,Guangzhou 510275;Research Institute of Environmental Protection Sciences of Guangzhou,Guangzhou 510300
Download:   PDF(1659KB) Export: BibTeX | EndNote (RIS)      

Abstract  The kinetic process in a tubular continuous-flow photo-reactor equiped with titanium dioxide immobilized on glass fiber-net has been studied by using methyl orange as a model reactant.The process has been described carefully,and modeled by using dynamic partial differential equation.Since the solution of the equation was complicated,the numerical solution has been undertaken by using a fourth-order Runge-Kutta scheme.The results show that the mathematical simulated values are consistent with the experimental data.Under the condition of different treated reactant amount the actual reaction rate constant k is approximately identical,but the apparent reaction rate constant kapp decreases with increasing treatment of reactant amount.The initial concentration has a great influence upon the rate constant.Below 15 μmol•L-1 of the initial concentration the rate constant tends to be a constant.In the range of 15~150 μmol•L-1,the influence of the initial concentration on the reaction rate constant can be expressed as:lnk=-0.48lnc0+1.42.The dependence of reaction rate constant on UV irradiation intensity is k∝I 0.5.The pH of initial solution is an important factor in the photocatalysis reaction.

Key wordsImmobilized bed      Photocatalysis      Kinetics      Mathematical simulation     
Received: 29 April 2001      Published: 15 November 2001
Corresponding Authors: Li Yu-Guang     E-mail: ceslyg@zsu.edu.cn
Cite this article:

Fan Shan-Hu;Yu Xiang-Yang;Zhan She-Xia;Chen Liu-Ping;Gu Xi-Lan;Li Yu-Guang;Shi Zhong-Bing. Kinetics Modeling Study on Continuous Circulative Flow Immobilized Photocatalytic Reactor. Acta Physico-Chimica Sinica, 2001, 17(11): 1000-1005.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB20011109     OR     http://www.whxb.pku.edu.cn/Y2001/V17/I11/1000

[1] CHENG Ruo-Lin, JIN Xi-Xiong, FAN Xiang-Qian, WANG Min, TIAN Jian-Jian, ZHANG Ling-Xia, SHI Jian-Lin. Incorporation of N-Doped Reduced Graphene Oxide into Pyridine-Copolymerized g-C3N4 for Greatly Enhanced H2 Photocatalytic Evolution[J]. Acta Physico-Chimica Sinica, 2017, 33(7): 1436-1445.
[2] HU Hai-Long, WANG Sheng, HOU Mei-Shun, LIU Fu-Sheng, WANG Tian-Zhen, LI Tian-Long, DONG Qian-Qian, ZHANG Xin. Preparation of p-CoFe2O4/n-CdS by Hydrothermal Method and Its Photocatalytic Hydrogen Production Activity[J]. Acta Physico-Chimica Sinica, 2017, 33(3): 590-601.
[3] XIAO Ming, HUANG Zai-Yin, TANG Huan-Feng, LU Sang-Ting, LIU Chao. Facet Effect on Surface Thermodynamic Properties and In-situ Photocatalytic Thermokinetics of Ag3PO4[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 399-406.
[4] CHENG Fang, WANG Han-Qi, XU Kuang, HE Wei. Preparation and Characterization of Dithiocarbamate Based Carbohydrate Chips[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 426-434.
[5] ZHANG Hao, LI Xin-Gang, CAI Jin-Meng, WANG Ya-Ting, WU Mo-Qing, DING Tong, MENG Ming, TIAN Ye. Effect of the Amount of Hydrofluoric Acid on the Structural Evolution and Photocatalytic Performance of Titanium Based Semiconductors[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2072-2081.
[6] CHEN Yang, YANG Xiao-Yan, ZHANG Peng, LIU Dao-Sheng, GUI Jian-Zhou, PENG Hai-Long, LIU Dan. Noble Metal-Supported on Rod-Like ZnO Photocatalysts with Enhanced Photocatalytic Performance[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2082-2091.
[7] QIU Wei-Tao, HUANG Yong-Chao, WANG Zi-Long, XIAO Shuang, JI Hong-Bing, TONG Ye-Xiang. Effective Strategies towards High-Performance Photoanodes for Photoelectrochemical Water Splitting[J]. Acta Physico-Chimica Sinica, 2017, 33(1): 80-102.
[8] NIU Hui-Chang, JI Dan, LIU Nai-An. Method for Optimizing the Kinetic Parameters for the Thermal Degradation of Forest Fuels Based on a Hybrid Genetic Algorithm[J]. Acta Physico-Chimica Sinica, 2016, 32(9): 2223-2231.
[9] LU Yang. Recent Progress in Crystal Facet Effect of TiO2 Photocatalysts[J]. Acta Physico-Chimica Sinica, 2016, 32(9): 2185-2196.
[10] JING Peng-Fei, LIU Hui-Jun, ZHANG Qin, HU Sheng-Yong, LEI Lan-Lin, FENG Zhi-Yuan. Kinetics and Thermodynamics of Adsorption of Benzil-Bridged β-Cyclodextrin on Uranium(VI)[J]. Acta Physico-Chimica Sinica, 2016, 32(8): 1933-1940.
[11] ZHAO Fei, SHI Lin-Qi, CUI Jia-Bao, LIN Yan-Hong. Photogenerated Charge-Transfer Properties of Au-Loaded ZnO Hollow Sphere Composite Materials with Enhanced Photocatalytic Activity[J]. Acta Physico-Chimica Sinica, 2016, 32(8): 2069-2076.
[12] MENG Ying-Shuang, AN Yi, GUO Qian, GE Ming. Synthesis and Photocatalytic Performance of a Magnetic AgBr/Ag3PO4/ZnFe2O4 Composite Catalyst[J]. Acta Physico-Chimica Sinica, 2016, 32(8): 2077-2083.
[13] LUO Bang-De, XIONG Xian-Qiang, XU Yi-Ming. Improved Photocatalytic Activity for Phenol Degradation of Rutile TiO2 on the Addition of CuWO4 and Possible Mechanism[J]. Acta Physico-Chimica Sinica, 2016, 32(7): 1758-1764.
[14] HE Tian, YUE Ke-Fen, CHEN San-Ping, ZHOU Chun-Sheng, YAN Ni. Synthesis, Structure and Thermodynamics/Kinetics Analysis of Three Different Interpenetrating Zinc(II) Coordination Architectures[J]. Acta Physico-Chimica Sinica, 2016, 32(6): 1397-1403.
[15] ZHU Kai-Jian, YAO Wen-Qing, ZHU Yong-Fa. Preparation of Bismuth Phosphate Photocatalyst with High Dispersion by Refluxing Method[J]. Acta Physico-Chimica Sinica, 2016, 32(6): 1519-1526.