Adsorption of volatile organic compounds on three activated carbon samples:Effect of pore structure

被引：10

作者：

李立清 ^{[1
]}

宋剑飞 ^{[1
,2
]}

姚小龙 ^{[1
]}

黄贵杰 ^{[1
]}

刘峥 ^{[1
]}

唐琳 ^{[1
]}

机构：

[1] School of Energy Science and Engineering,Central South University

[2] School of Chemical and Biological Engineering,Changsha University of Science and Technology

来源：

Journal of Central South University | 2012年 / 19卷 / 12期

关键词：

activated carbon; volatile organic compounds; adsorption; pore structure; selectivity;

D O I：

暂无

中图分类号：

X511 [气相污染物]; TQ028.15 [];

学科分类号：

0706 ; 070602 ; 081701 ; 081704 ;

摘要：

To investigate the influence of the activated carbon pore structure on the adsorption of volatile organic compounds(VOCs),three commercial activated carbon samples were chosen.The fixed-bed thermostatic adsorption experiments were conducted under certain conditions,where toluene,acetone,and 1,2-dichloroethane acted as adsorbents.Then,the incidence relation between the experimental results and the activated carbon pore structure was analyzed.After that,the results of the correlation analysis were verified in accordance with fractal theory and adsorption characteristic curve analysis.The results show that the pore diameter gradient is helpful for strengthening the internal diffusion.Under the same condition,the adsorption of organic gases tends to be selective,and the positions of toluene,acetone and 1,2-dichloroethane adsorbed on the activated carbon are mainly in the ranges of 1.27-1.49nm,0.67-0.84nm and 1.39-1.75nm,respectively.The relationship between adsorption capacity and activated carbon pore volume can accurately explain the spreading process of the adsorbents in the activated carbon.

引用

页码：3530 / 3539

页数：10

共 9 条

[1] 纳米晶La1-xEuxFeO3的合成、表征及催化甲苯燃烧反应活性（英文） [J].

Seyed Ali HOSSEINI ;

Mohammad Taghi SADEGHISORKHANI ;

Leila KAFIAHMADI ;

Abdolali ALEMI ;

Aligholi NIAEI ;

Dariush SALARI .

催化学报, 2011, 32 (09) :1465-1468

[2]

Carbonaceous mesophase spherule/activated carbon composite as anode materials for super lithium ion capacitors[J]. 杨娟,周向阳,李劼,娄世菊. Journal of Central South University of Technology. 2011(04)

[3]

Pore structure analysis of PFSA/SiO2 composite catalysts from nitrogen adsorption isotherms[J]. YUAN HaiKuan1,2,MA XiaoHua1 & XU ZhenLiang1 1Membrane Science and Engineering R&D Lab,Chemical Engineering Research Center,East China University of Science and Technology (ECUST),Shanghai 200237,China 2College of Chemical Engineering and Materials Science,Zhejiang University of Technology,Hangzhou 310014,China. Science China(Chemistry). 2011(01)

[4]

Characteristics of activated carbon prepared from Chinese fir sawdust by zinc chloride activation under vacuum condition[J]. 丘克强,杨素文,杨娟. Journal of Central South University of Technology. 2009(03)

[5] 表面活性剂溶液动态表面张力及吸附动力学研究 [J].

李本刚 ;

陈正国 .

化学进展, 2005, (02) :233-241

[6] Exposure to major volatile organic compounds and carbonyls in European indoor environments and associated health risk [J].

Sarigiannis, Dimosthenis A. ;

Karakitsios, Spyros P. ;

Gotti, Alberto ;

Liakos, Ioannis L. ;

Katsoyiannis, Athanasios .

ENVIRONMENT INTERNATIONAL, 2011, 37 (04) :743-765

[7] Pore structure and adsorption performance of the KOH-activated carbons prepared from corncob [J].

Tseng, RL ;

Tseng, SK .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 287 (02) :428-437

[8] Health evaluation of volatile organic compound (VOC) emissions from wood and wood-based materials [J].

Jensen, LK ;

Larsen, A ;

Molhave, L ;

Hansen, MK ;

Knudsen, B .

ARCHIVES OF ENVIRONMENTAL HEALTH, 2001, 56 (05) :419-432

[9] Adsorption of acid dye onto activated carbons prepared from agricultural waste bagasse by ZnCl2 activation [J].

Tsai, WT ;

Chang, CY ;

Lin, MC ;

Chien, SF ;

Sun, HF ;

Hsieh, MF .

CHEMOSPHERE, 2001, 45 (01) :51-58

← 1 →