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J Hazard Mater

Title:		Novel hydrophobic PDVB/R-SiO2 for adsorption of volatile organic compounds from highly humid gas stream
Author(s):		Lu HF; Cao JJ; Zhou Y; Zhan DL; Chen YF;
Address:		"College of Chemical Engineering and Materials Science, Research Institute of Catalytic Reaction Engineering, Zhejiang University of Technology, Hangzhou 310014, China. Electronic address: luhf@zjut.edu.cn"
Journal Title:		J Hazard Mater
Year:		2013
Volume:		20130821
Issue:
Page Number:		83 - 90
DOI:		10.1016/j.jhazmat.2013.08.033
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"A novel organic-inorganic hydrophobic polydivinylbenzene-silica adsorbent (PDVB/R-SiO2) was successfully prepared by introducing a specific amount of divinylbenzene and solvent (i.e., tetrahydrofuran) to SiO2pores and initiating polymerization under solvothermal conditions. New smaller structures and surface areas were formed in the SiO2 pores. The PDVB/R-SiO2-0.5 samples exhibited a bimodal pore size distribution with both SiO2 micropores/mesopores (0.5-2.0 nm) and mesopores (2.0-5.0 nm). The surface areas increased from 116 m(2)/g (SiO2) to 246 m(2)/g. The breakthrough curves of toluene adsorption indicated that the amount adsorbed on PDVB/R-SiO2-0.5 was 12 times higher than that on SiO2. The highly humid environment exhibited no effect on adsorption because the surface of PDVB was functionalized. The adsorbed toluene was easily desorbed in hot N2 stream at 100 degrees C. After 10 adsorption-desorption cycles, PDVB/R-SiO2-0.5 continued exhibiting excellent adsorption, indicating superior structural and regeneration abilities"
Keywords:		Adsorption Gases/*chemistry *Humidity Hydrophobic and Hydrophilic Interactions Silicon Dioxide/*chemistry Volatile Organic Compounds/*chemistry Adsorbent Hydrophobicity Organic-inorganic Polydivinylbenzene SiO(2) Volatile organic compounds;
Notes:		"MedlineLu, Han-feng Cao, Jie-jing Zhou, Ying Zhan, De-li Chen, Yin-fei eng Research Support, Non-U.S. Gov't Netherlands 2013/09/07 J Hazard Mater. 2013 Nov 15; 262:83-90. doi: 10.1016/j.jhazmat.2013.08.033. Epub 2013 Aug 21"