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Polycyclic Aromatic Compounds Volume 34, 2014 - Issue 4
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Original Articles

Preparation, Characterization, and Adsorption Properties of Amino-Alky Cellulose for 2, 4, 6-Trinitrotoluene

Jing WangDepartment of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China
,
Xiaoyan LinDepartment of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China;Engineering Research Center of Biomass Materials, Ministry of Education, Mianyang, Sichuan, ChinaCorrespondence[email protected]
,
Heng ZhuDepartment of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China;Engineering Research Center of Biomass Materials, Ministry of Education, Mianyang, Sichuan, China
,
Xuegang LuoEngineering Research Center of Biomass Materials, Ministry of Education, Mianyang, Sichuan, China
&
Jianping ZhangDepartment of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China;Engineering Research Center of Biomass Materials, Ministry of Education, Mianyang, Sichuan, China
Pages 372-387 | Received 07 Jul 2013, Accepted 06 Feb 2014, Published online: 13 Jun 2014
 
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Abstract

A novel adsorbent, amino-alky cellulose (AmAC), is prepared by chlorination and amination of hydroxyethyl cellulose (HEC). AmAC are characterized by 13C-NMR and used as adsorbent to remove 2, 4, 6-trinitrotoluene (TNT) from waste water. Effects of various parameters including solvent and amine group content are studied. Adsorption mechanisms are also analyzed. Results show that the maximum adsorption capacity is 69.23 mg g−1 and removal efficiency of 99.30%, while the adsorption deeds are attributed to the hydrogen bond between TNT molecules and amino-alky cellulose. The equilibrium sorption is well demonstrated by Freundlich isotherm model. The reusability experiment shows the adsorbed TNT could be desorbed by ethanol eluant when the pH is 1.

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