PMID: 15461175Oct 6, 2004Paper

Compositions and sorptive properties of crop residue-derived chars

Environmental Science & Technology
Yuan ChunBaoshan Xing

Abstract

Chars originating from the burning or pyrolysis of vegetation may significantly sorb neutral organic contaminants (NOCs). To evaluate the relationship between the char composition and NOC sorption, a series of char samples were generated by pyrolyzing a wheat residue (Triticum aestivum L.) for 6 h at temperatures between 300 degrees C and 700 degrees C and analyzed for their elemental compositions, surface areas, and surface functional groups. The samples were then studied for their abilities to sorb benzene and nitrobenzene from water. A commercial activated carbon was used as a reference carbonaceous sample. The char samples produced at high pyrolytic temperatures (500-700 degrees C) were well carbonized and exhibited a relatively high surface area (>300 m2/g), little organic matter (<3%), and low oxygen content (< or = 10%). By contrast, the chars formed at low temperatures (300-400 degrees C) were only partially carbonized, showing significantly different properties (<200 m2/g surface area, 40-50% organic carbon, and >20% oxygen). The char samples exhibited a significant range of surface acidity/basicity because of their different surface polar-group contents, as characterized by the Boehm titration data and the NMR and FTI...Continue Reading

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Citations

Apr 6, 2012·Environmental Science and Pollution Research International·Xiaoyun XuBin Gao
Apr 24, 2013·Environmental Science and Pollution Research International·Mahtab AhmadYong Sik Ok
Apr 24, 2013·Journal of Hazardous Materials·Kirk T SempleGary D Bending
Apr 24, 2013·Journal of Hazardous Materials·Girish ChoppalaBalaji Seshadri
Aug 9, 2013·Journal of Environmental Sciences (China)·Xuejiao Tong, Renkou Xu
Sep 14, 2012·Environmental Science & Technology·Zaiming ChenCary T Chiou
Mar 8, 2012·Journal of Agricultural and Food Chemistry·Minori UchimiyaVeera M Boddu
Apr 13, 2013·Journal of Agricultural and Food Chemistry·Yang SongXin Jiang
Sep 6, 2013·Journal of Agricultural and Food Chemistry·Xiaoyan CaoJingdong Mao
Aug 25, 2012·Journal of the Air & Waste Management Association·Guofeng ShangQin Chen
Dec 25, 2013·Bioresource Technology·Andrei VekshaJosephine M Hill
Sep 11, 2013·Environmental Science and Pollution Research International·Guangcai ChenZhiguo Pei
Oct 1, 2013·Environmental Science and Pollution Research International·Qing WanXing-Hui Li
Jul 30, 2014·Journal of Hazardous Materials·Rajesh ChintalaZheng Rong Gu
Jan 29, 2016·Chemosphere·Shanti LamichhaneRanjan Sarukkalige
Jan 5, 2016·Environmental Science & Technology·Guoqing ShenScott R Yates
Aug 1, 2014·Journal of Environmental Sciences (China)·Jining ZhangPinjing He
Feb 6, 2014·Journal of Environmental Sciences (China)·Jingjian PanRenkou Xu
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Mar 26, 2013·Ecotoxicology and Environmental Safety·Liping LouYingxu Chen
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Sep 27, 2015·Environmental Science and Pollution Research International·Hailu WuBin Gao
Mar 17, 2015·Environmental Science and Pollution Research International·Xing YangHailong Wang
Feb 18, 2015·Environmental Science and Pollution Research International·Seok-Young Oh, Yong-Deuk Seo

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