Please wait a minute...
Acta Physico-Chimica Sinica  2008, Vol. 24 Issue (03): 533-538    DOI: 10.3866/PKU.WHXB20080332
Note     
Effect of Pore Structure of Activated Carbon on the Photocatalytic Activity of TiO2/AC Composite Photocatalyst
LIU Shou-Xin; CHEN Xiao-Yun
Key Laboratory of Biological Materials of the Ministry of Education, Northeast Forestry University, Harbin 150040, P. R. China
Download:   PDF(663KB) Export: BibTeX | EndNote (RIS)      

Abstract  With the aim of investigating the effect of pore structure of activated carbon (AC) on the photocatalytic activity of TiO2/AC composite photocatalyst, 4 kinds of AC with similar surface chemical characteristics and different pore structures were used and compared. Phenol degradation was used for photocatalytic activity test. N2 adsorption isotherm (77 K) was used for BET surface area (SBET), pore volume, and pore size distribution measurement. Boehm titration and elemental analysis were used for surface chemical characteristics determination. XRD, DRS, and SEM were used to characterize the crystal structure, spectra characteristics, and surface properties. The results showed that the pore structure of AC had significant effect on the photocatalytic activity of TiO2/AC. The synergistic coefficients for the activity enhancement of AC1, AC2, AC3, and AC4 were 1.55, 2.03, 1.28, and 1.43, respectively, which exhibited the similar tendency with the contact interface (⊿S). AC with both developed micropore and mesopore structures exhibited the highest activity when composited with TiO2. The developed micropore structure can provide more adsorption sites for pollutant molecules. More mesopore can be beneficial to the transfer of adsorbed phenol from adsorption sites to active TiO2. Also, the mesopore can inhibit the aggregation of nano-size TiO2, improve its dispersion and increase the contact interface between AC and TiO2.

Key wordsActivated carbon      Pore structure      TiO2      Photocatalysis activity     
Received: 03 August 2007      Published: 18 December 2007
MSC2000:  O643  
Corresponding Authors: LIU Shou-Xin     E-mail: liushouxin@126.com
Cite this article:

LIU Shou-Xin; CHEN Xiao-Yun. Effect of Pore Structure of Activated Carbon on the Photocatalytic Activity of TiO2/AC Composite Photocatalyst. Acta Physico-Chimica Sinica, 2008, 24(03): 533-538.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20080332     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2008/V24/I03/533

[1] WANG Mei-Song, ZOU Pei-Pei, HUANG Yan-Li, WANG Yuan-Yuan, DAI Li-Yi. Three-Dimensional Graphene-Based Pt-Cu Nanoparticles-Containing Composite as Highly Active and Recyclable Catalyst[J]. Acta Physico-Chimica Sinica, 2017, 33(6): 1230-1235.
[2] ZHAO Li-Ping, MENG Wei-Shuai, WANG Hong-Yu, QI Li. MoS2-C Composite as Negative Electrode Material for Sodium-Ion Supercapattery[J]. Acta Physico-Chimica Sinica, 2017, 33(4): 787-794.
[3] YIN Jin-Ling, LIU Jia, WEN Qing, WANG Gui-Ling, CAO Dian-Xue. Phosphomolybdic Acid as a Mediator for Indirect Carbon Electrooxidation in LowTemperature Carbon Fuel Cell[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 370-376.
[4] LI Dao-Yan, ZHANG Ji-Chen, WANG Zhi-Yong, JIN Xian-Bo. Preparation of Activated Carbon from Honeycomb-Like Porous Gelatin for High-Performance Supercapacitors[J]. Acta Physico-Chimica Sinica, 2017, 33(11): 2245-2252.
[5] WANG Yong-Fang, ZUO Song-Lin. Electrochemical Properties of Phosphorus-Containing Activated Carbon Electrodes on Electrical Double-Layer Capacitors[J]. Acta Physico-Chimica Sinica, 2016, 32(2): 481-492.
[6] LI Ya-Jie, NI Xing-Yuan, SHEN Jun, LIU Dong, LIU Nian-Ping, ZHOU Xiao-Wei . Preparation and Performance of Polypyrrole/Nitric Acid Activated Carbon Aerogel Nanocomposite Materials for Supercapacitors[J]. Acta Physico-Chimica Sinica, 2016, 32(2): 493-502.
[7] TONG Li, XU Wen-Qing, QI Hao, ZHOU Xuan, LIU Rui-Hui, ZHU Ting-Yu. Enhanced Effect of O/N Groups on the Hg0 Removal Efficiency over the HNO3-Modified Activated Carbon[J]. Acta Physico-Chimica Sinica, 2015, 31(3): 512-518.
[8] YANG Jie-Yang, HUANG Zhang-Gen, HAN Xiao-Jin, JING Wen, ZENG Ze-Quan. Effect of Activated Carbon Pore Structure on the Adsorption of Pb(II) from Aqueous Solution[J]. Acta Physico-Chimica Sinica, 2015, 31(10): 1956-1962.
[9] XIAO Bo, LIU Shou-Qing. Photocatalytic Oxidation of Ammonia via an Activated Carbon-Nickel Ferrite Hybrid Catalyst under Visible Light Irradiation[J]. Acta Physico-Chimica Sinica, 2014, 30(9): 1697-1705.
[10] SUN Xian-Zhong, HUANG Bo, ZHANG Xiong, ZHANG Da-Cheng, ZHANG Hai-Tao, MA Yan-Wei. Experimental Investigation of Electrochemical Impedance Spectroscopy of Electrical Double Layer Capacitor[J]. Acta Physico-Chimica Sinica, 2014, 30(11): 2071-2076.
[11] HUANG Bo, SUN Xian-Zhong, ZHANG Xiong, ZHANG Da-Cheng, MA Yan-Wei. Organic Electrolytes for Activated Carbon-Based Supercapacitors with Flexible Package[J]. Acta Physico-Chimica Sinica, 2013, 29(09): 1998-2004.
[12] JIN Wei-Yang, CHENG Dang-Guo, CHEN Feng-Qiu, ZHAN Xiao-Li. Synthesis of MFI-Type Zeolite Membrane Encapsulated Activated Carbon Particles Using a Modified Seeded Method[J]. Acta Physico-Chimica Sinica, 2013, 29(01): 139-143.
[13] HU Si, ZHANG Qing, XIA Zhi, GONG Yan-Jun, XU Jun, DENG Feng, DOU Tao. Catalytic Conversion of Methanol to Propylene over (NH4)2SiF6-Modified Nanosized HZSM-5 Zeolite[J]. Acta Physico-Chimica Sinica, 2012, 28(11): 2705-2712.
[14] ZhONG Hao-Xiang, ZHAO Chun-Bao, LUO Hao, ZHANG Ling-Zhi. Novel Organosilicon Ionic Liquid Based Electrolytes for Supercapacitors[J]. Acta Physico-Chimica Sinica, 2012, 28(11): 2641-2647.
[15] PING Li-Na, ZHENG Jia-Ming, SHI Zhi-Qiang, WANG Cheng-Yang. Electrochemical Performance of Lithium Ion Capacitors Using Li+-Intercalated Mesocarbon Microbeads as the Negative Electrode[J]. Acta Physico-Chimica Sinica, 2012, 28(07): 1733-1738.