化工学报 ›› 2017, Vol. 68 ›› Issue (8): 3119-3125.DOI: 10.11949/j.issn.0438-1157.20170163

• 分离工程 • 上一篇    下一篇

吗啡啉螯合树脂对水中钨离子的吸附及解吸性能

朱倩倩1, 熊春华1, 厉炯慧2, 沈忱1, 马志高3, 李卓厉1, 李建丹1   

  1. 1 浙江工商大学应用化学系, 浙江 杭州 310018;
    2 浙江工商大学环境科学与工程学院, 浙江 杭州 310018;
    3 杭州瑞晶生物科技公司技术研究中心, 浙江 杭州 311300
  • 收稿日期:2017-02-21 修回日期:2017-04-26 出版日期:2017-08-05 发布日期:2017-08-05
  • 通讯作者: 熊春华
  • 基金资助:

    国家自然科学基金项目(20972138);教育部博士点基金项目(20133326110006);浙江省公益计划项目(2015C37044)。

Adsorption and desorption of tungsten ions in water by morpholine chelate resin

ZHU Qianqian1, XIONG Chunhua1, LI Jionghui2, SHEN Chen1, MA Zhigao3, LI Zhuoli1, LI Jiandan1   

  1. 1 Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang, China;
    2 School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang, China;
    3 Department of Technical Research Centre, Hangzhou Regin Bio-tech Co. Ltd., Hangzhou 311300, Zhejiang, China
  • Received:2017-02-21 Revised:2017-04-26 Online:2017-08-05 Published:2017-08-05
  • Supported by:

    supported by the National Natural Science Foundation of China (20972138), the PhD Programs Foundation of Ministry of Education of China (20133326110006) and the Analysis and Detection Project of Science Technology Department of Zhejiang Province, China (2015C37044).

摘要:

通过制备吗啡啉螯合树脂作为吸附材料对水中钨离子进行吸附与解吸实验,考察吸附pH、共存离子、吸附温度对饱和吸附容量的影响,并对其进行了傅里叶红外光谱(FTIR)、热重分析仪(TGA)、电位分析仪(Zeta)、扫描电子显微镜(SEM)等手段的表征。结果表明PS-MPL树脂对钨离子的最佳吸附pH=4.0,308 K下饱和吸附量为349.2 mg·g-1,平衡时间为13 h。吸附过程遵循二级动力学模型,吸附等温线与Langmuir模型较为吻合。通过2%(质量分数)NaOH溶液进行解吸,解吸率达到100%。PS-MPL树脂吸附钨离子具有高选择性、高吸附性、高洗脱率等优点。

关键词: 吸附, 解吸, 钨, PS-MPL树脂

Abstract:

In this study, the adsorption and desorption properties of chelating resin for tungsten have been investigated, batch studies were carried out, and the FTIR, TGA, Zeta and SEM were characterized before and after adsorption. The results showed that the optimal adsorption condition was at pH 4.0, 308 K, the maximum saturated adsorption capacity of tungsten is 349.2 mg·g-1, with a high selectivity adsorption capacity. The adsorption kinetic and equilibrium data were fitted well with the pseudo-second-order model and the Langmuir isotherm model, respectively. Desorption studies revealed tungsten ion could be eluted effectively by using the 2%(mass) NaOH solution, the desorption efficiency was 100%. PS-MPL resin has the advantages of high selectivity, high adsorption, high elution rate and so on.

Key words: adsorption, desorption, tungsten, PS-MPL resin

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