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[1]舒何进,杨 隽*,仇 伟,等.CS/AA/ZO的制备及其对钙和铁离子的吸附性能[J].武汉工程大学学报,2021,43(04):412-416.[doi:10.19843/j.cnki.CN42-1779/TQ.202007013]
 SHU Hejin,YANG Jun*,QIU Wei,et al.Preparation of CS/AA/ZO and Its Performances for Adsorption of Calcium and Iron Ions[J].Journal of Wuhan Institute of Technology,2021,43(04):412-416.[doi:10.19843/j.cnki.CN42-1779/TQ.202007013]
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CS/AA/ZO的制备及其对钙和铁离子的吸附性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
43
期数:
2021年04期
页码:
412-416
栏目:
材料科学与工程
出版日期:
2021-08-31

文章信息/Info

Title:
Preparation of CS/AA/ZO and Its Performances for Adsorption of Calcium and Iron Ions
文章编号:
1674 - 2869(2021)04 - 0412 - 05
作者:
舒何进杨 隽*仇 伟赵启天
武汉工程大学材料科学与工程学院,湖北 武汉 430205
Author(s):
SHU HejinYANG Jun*QIU WeiZHAO Qitian
School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430205,China
关键词:
尾矿坝化学淤堵壳聚糖沸石吸附材料Ca2+Fe3+
Keywords:
tailings dam chemical clogging chitosan zeolite absorbent material Ca2+ Fe3+
分类号:
TQ028.1+5
DOI:
10.19843/j.cnki.CN42-1779/TQ.202007013
文献标志码:
A
摘要:
为减少尾矿坝中土工布的化学淤堵,采用壳聚糖(CS)接枝丙烯酸(AA)制备改性CS(CS/AA),再与沸石(ZO)物理交联,制备吸附材料。傅里叶红外光谱法分析显示AA成功接枝在CS上,扫描电子显微镜可以观察到ZO与CS/AA成功交联,并形成了较多的孔穴。EDTA滴定法测定结果显示,ZO与CS/AA的质量比为1∶2时,材料对Ca2+的吸附容量最高,为398 mg/g。紫外可见分光光度计测定结果显示,ZO与CS/AA的质量比分别为1∶2和1∶1时,材料对Fe3+的吸附容量最高,为9.9 mg/g。红外光谱分析显示,—OH与—COOH与金属离子发生了螯合。研究为尾矿坝的安全处理提供理论依据。
Abstract:
To reduce the chemical clogging of geotextiles in tailings dam,chitosan (CS) is first grafted with acrylic acid (AA) and then physically cross-linked with zeolite (ZO) to prepare the absorbent materials. The analysis of Fourier-transform infrared spectrometer (FTIR) shows that AA is successfully grafted on CS,and the images of scanning electron microscope show that there is a successful cross-linking between ZO and CS/AA,presenting more holes. The result of ethylenediaminetetraacetic acid titration shows that when the mass ratio of ZO and CS/AA is 1∶2, the adsorption capacity of Ca2+ reaches the highest of 398 mg/g. And the results of UV-vis spectrophotometer indicate that when the mass ratios of ZO and CS/AA are 1∶2 and 1∶1 respectively,the adsorption capacity of Fe3+ reaches the highest of 9.9 mg/g. The FTIR analysis shows that the chelating-mechanism happens among -OH and -COOH with metal ions. The study provides a theoretical basis for safe treatment of tailings dam.

参考文献/References:

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相似文献/References:

[1]赵启天,杨 隽*,舒何进,等.壳聚糖螯合吸附剂的制备及其在尾矿坝中的应用[J].武汉工程大学学报,2020,42(01):50.[doi:10.19843/j.cnki.CN42-1779/TQ.201907004]
 ZHAO Qitian,YANG Jun*,SHU Hejin,et al.Preparation of Chitosan Chelate Adsorbent and Its Application in Tailings Dam[J].Journal of Wuhan Institute of Technology,2020,42(04):50.[doi:10.19843/j.cnki.CN42-1779/TQ.201907004]

备注/Memo

备注/Memo:
收稿日期:2020-07-25基金项目:国家重点研发计划课题(2017YFC0804602);武汉工程大学第十一届研究生教育创新基金(CX2019065);岩土力学与工程国家重点实验室开放基金(Z018008)作者简介:舒何进,硕士研究生。E-mail:18162323968@163.com*通讯作者:杨 隽,博士,教授。E-mail:yang6362@wit.edu.cn引文格式:舒何进,杨隽,仇伟,等. CS/AA/ZO的制备及其对钙、铁离子的吸附性能[J]. 武汉工程大学学报,2021,43(4):412-416.
更新日期/Last Update: 2021-08-07