Abstract：In the present paper, the IR spectra, adsorption and reusing property of quaternary ammonium cationic cellulose (QACC) towards POPs were studied. The method and technological parameters of adsorption were discussed. The adsorbing isotherm, thermodynamics (ΔH, ΔS and ΔG), adsorption rate constant and adsorption activation energy of QACC on dyes were determined, and the sorption mechanism of QACC was confirmed initially, too. In near neutral water solution, QACC has a better saturated absorptive capability to water-soluble organic contaminations of aromatic series which contain carboxyl, sulfonic and hydroxyl group, and the presence of common coexistent ions in environmental water had no obvious effect on the saturated adsorption capacity of QACC. The adsorption involves both physical adsorption and chemical adsorption, and the chemical adsorption is the main. The adsorption of QACC to water-soluble organic contaminants followed Langmuir adsorption equation and one-order kinetic equation. Furthermore the adsorption rate constants increase with increasing temperature. QACC could be desorbed and reused with 0.5 mol·L-1 sodium hydroxide solution after adsorbing water-soluble organic contaminations. QACC is a new environmental function material with excellent performance and can be used to remove the POPs in the environment.
姚士芹,施文健*,陈肖云,俞 芸,杨琴淋 . 季铵型纤维素的红外光谱及对持久性有机污染物的吸附特征[J]. 光谱学与光谱分析, 2009, 29(09): 2370-2374.
YAO Shi-qin, SHI Wen-jian*, CHEN Xiao-yun, YU Yun, YANG Qin-lin . IR Spectra of Quarternary Ammonium Cellulose and Its Adsorption Properties to POPs . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(09): 2370-2374.
[1] JIN Chao-hui, Drovetskaya T V, WU Pei-fang(金朝晖, 绉维斯卡雅T V, 吴佩芳). Detergent and Cosmetics(日用化学品科学), 2005, 28(8): 33. [2] LIU Zhao-tie, YANG Ya-ni, ZHANG Li-li, et al. Cellulose, 2007, 14: 337. [3] Mazet M M, Yele J, Rigaudie I. Water Resarch, 1992, 26(4): 409. [4] CUI Zhi-min, ZHU Jin-zhan, LUO Ru-xian(崔志敏, 朱锦瞻, 罗儒显). Ion Exchang and Adsorption(离子交换与吸附), 2002, 18(3): 232. [5] Fadhel A, Sami B, Jalel L. Separation and Purification Technology, 2006, 52 :332. [6] Sami B, Mohamed N B. Cellulose, 2006, 13: 81. [7] GB/T 7490—87. National Standard of P. R. China(中华人民共和国国家标准). [8] GB/T 11889—89.National Standard of P. R. China(中华人民共和国国家标准). [9] SHI Wen-jian(施文健). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2006, 26(11): 2053. [10] WANG Xiao-rong(王晓蓉). Environmental Chemistry(环境化学). Nanjing: Press of Nanjing University(南京: 南京大学出版社), 1997. 10. [11] LIU Fu-qiang, CHEN Jin-long, FEI Zheng-hao(刘福强, 陈金龙, 费正皓). Chinese Journal of Applied Chemistry(应用化学), 2003, 20(12): 1123.
