有机-无机-磁性树脂对微污染水源水中腐殖酸的吸附性能研究

引用本文: 马喜君, 张滢滢, 周久扬, 谢兴勇, 姜孝武, 吴正岩, 张静. 有机-无机-磁性树脂对微污染水源水中腐殖酸的吸附性能研究[J]. 分析化学, 2018, 46(4): 563-569. doi: 10.11895/j.issn.0253-3820.171322 shu

Citation: MA Xi-Jun, XIE Xing-Yong, JIANG Xiao-Wu, WU Zheng-Yan, ZHANG Jing, Adsorption Property of Humic Acid in Micro-polluted Water by Organic-Inorganic-Magnetic Resin[J]. Chinese Journal of Analytical Chemistry, 2018, 46(4): 563-569. doi: 10.11895/j.issn.0253-3820.171322 shu

有机-无机-磁性树脂对微污染水源水中腐殖酸的吸附性能研究

马喜君 ^1, ,
张滢滢 ^1, ,
周久扬 ^1, ,
谢兴勇 ^1, ,
姜孝武 ^1, ,
吴正岩 ^2, ,
张静 ^1,

1.
淮阴工学院, 淮安 223003;
2.
中国科学院合肥物质科学研究院, 合肥 230031
基金项目:
本文系国家自然科学基金项目（No.41301048）和淮安市科技计划项目（No.HAS2015008）资助

摘要: 以有机化磁性凹凸棒土（M-ATP）制备有机-无机-磁性三效性能树脂（MPR）。利用扫描电镜、傅里叶变换红外光谱等对树脂形貌和结构进行表征，考察了树脂对腐殖酸（HA）的吸附性能。结果表明，超声分散法制备的样品（UD-MPR）溶胀态下有效比表面积为674.31 m²/g，M-ATP的最佳添加量为8%（m/m）。UD-MPR对HA的吸附符合二级动力学模型，平衡时间为233 min。当HA初始浓度为14.87 mg/L时，吸附量达13 mg/g。对Langmuir及Freundlich等温吸附模型拟合度均较高。热力学参数（ΔH^θ，ΔS^θ，ΔG^θ）测定结果表明，UD-MPR吸附HA是自发吸热的反应，乙酸对吸附过程影响较大。吸附剂可循环使用，重复使用6次，吸附性能没有明显变化。

关键词:

English

Adsorption Property of Humic Acid in Micro-polluted Water by Organic-Inorganic-Magnetic Resin

1.
Huaiyin Institute of Technology, Huai'an 223003, China;
2.
Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Received Date: 11 October 2017
Revised Date: 06 February 2018
Fund Project:
This work was supported by the National Natural Science Foundation of China (No.41301048), the Science and Technology Project of Huai'an, China (No.2015008) and the Social Development Projects of Huai'an, China (No.HAS2014020).

Abstract: Nanocomposites of magnetic attapulgite-resin (MPR) were prepared for adsorption of humic acid (HA). This nano adsorbent was characterized by X-ray diffractometer (XRD), Fourier Transform Infrared (FTIR) spectroscopy and Scanning Electron Microscope (SEM). The adsorption property of HA onto MPR was investigated. Experimental results indicated that MPR prepared by the ultrasonic dispersion exhibited a much better adsorption capacity than that of the resin and attapulgite. The effective specific surface area of the MPR was illustrated to be 674.31 m²/g. With a initial concentration of HA of 14.87 mg/L, the adsorption capacity reached 13 mg/g. Besides, it was found that the adsorption capacity increased with the contact time, and it reached the equilibrium at 233 min. The adsorption kinetics and isotherms could be well described by pseudo-second-order model and Langmuir isotherm model, respectively. Thermodynamic parameters (ΔH^θ, ΔS^θ, and ΔG^θ) indicated that the adsorption was spontaneous and exothermic. Acetic acid had obvious influence on the adsorption of HA on this complex resin. The adsorbent could be reused six times without obvious decrease of adsorption performance.

Key words:

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有机-无机-磁性树脂对微污染水源水中腐殖酸的吸附性能研究

English

Adsorption Property of Humic Acid in Micro-polluted Water by Organic-Inorganic-Magnetic Resin

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

有机-无机-磁性树脂对微污染水源水中腐殖酸的吸附性能研究

English

Adsorption Property of Humic Acid in Micro-polluted Water by Organic-Inorganic-Magnetic Resin

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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