Skip to content

Research at St Andrews

Experimental and theoretical investigations of Cs+ adsorption on crown ethers modified magnetic adsorbent

Research output: Contribution to journalArticlepeer-review

Author(s)

Zhong Liu, Yongquan Zhou, Min Guo, Baoliang Lv, Zhijian Wu, Wuzong Zhou

School/Research organisations

Abstract

Carboxyl Fe3O4 nanoparticles (Fe3O4@R-COOH) modified with 18-Crown-6 ether functional groups have been prepared via an amidation reaction and used as bifunctional adsorbent for Cs+. The adsorbent has a superparamagnetic property, allowing an easy recycling, and a high capacity of Cs+ adsorption on the crown ether. The adsorption isotherms and kinetic behaviors agree well with the Langmuir and the pseudo-second-order models. The material exhibits a high selectivity for Cs+ in the solution with co-existing cations (NH4+, Rb+, K+, Na+ and Li+). A theoretical calculation according to density functional theory (DFT) is used to estimate the structure of Cs+ adsorption on crown ether, demonstrating an exothermic process and showing a good agreement with the experimental observations. The adsorption behavior is affected not only by the size of macrocyclic crown ethers, but also by the chelating symmetry and the binding energy. The newly developed adsorbent has a potential application for removing cesium out of wastewater and salt lakes.
Close

Details

Original languageEnglish
Pages (from-to)712-720
JournalJournal of Hazardous Materials
Volume371
Early online date6 Mar 2019
DOIs
Publication statusPublished - 5 Jun 2019

    Research areas

  • Carboxyl Fe3O4, Magnetic adsorbent, Crown ethers, Cesium, Adsorption

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Growth mechanisms of Ag and Cu nanodendrites via Galvanic replacement reactions

    Chen, J., Davies, J. J., Goodfellow, A. S., Hall, S. M. D., Lancaster, H. G., Liu, X., Rhodes, C. J. & Zhou, W., Feb 2021, In: Progress in Natural Science: Materials International. 31, 1, p. 141-151 11 p.

    Research output: Contribution to journalArticlepeer-review

  2. Incommensurate-commensurate transition in the geometric ferroelectric LaTaO4

    Howieson, G. W., Wu, S., Gibbs, A. S., Zhou, W., Scott, J. F. & Morrison, F. D., 4 Nov 2020, In: Advanced Functional Materials. 30, 45, 10 p., 2004667.

    Research output: Contribution to journalArticlepeer-review

  3. Efficient luminescence from CsPbBr3 nanoparticles embedded in Cs4PbBr6

    Bao, Z., Tseng, Y. J., You, W., Zheng, W., Chen, X., Mahlik, S., Lazarowska, A., Lesniewski, T., Grinberg, M., Ma, C., Sun, W., Zhou, W., Liu, R. S. & Attfield, J. P., 17 Sep 2020, In: Journal of Physical Chemistry Letters. 11, 18, p. 7637-7642 6 p.

    Research output: Contribution to journalArticlepeer-review

  4. Surface trace doping of Na enhancing structure stability and adsorption properties of Li1.6Mn1.6O4 for Li+ recovery

    Qian, F., Zhao, B., Guo, M., Wu, Z., Zhou, W. & Liu, Z., 13 Aug 2020, In: Separation and Purification Technology. In press

    Research output: Contribution to journalArticlepeer-review

  5. Crepe cake structured layered double hydroxide/sulfur/graphene as a pPositive electrode material for Li-S batteries

    Liu, S., Zhang, X., Wu, S., Chen, X., Yang, X., Yue, W., Lu, J. & Zhou, W., 15 Jun 2020, In: ACS Nano. Articles ASAP

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Carbon deposition and phase transformations in red mud on exposure to methane

    Sushil, S., Alabdulrahman, A. M., Balakrishnan, M., Batra, V. S., Blackley, R. A., Clapp, J., Hargreaves, J. S. J., Monaghan, A., Pulford, I. D., Rico, J. L. & Zhou, W., 15 Aug 2010, In: Journal of Hazardous Materials . 180, 1-3, p. 409-418 10 p.

    Research output: Contribution to journalArticlepeer-review

  2. pH dependent separation of uranium by chelation chromatography using pyridine 2,6-dimethanol as a chelator: Single crystal X-ray structural confirmation of the chelated uranium complex

    Saha, R., Das, S., Banerjee, A., Sahana, A., Sudarsan, M., Slawin, A. M. Z., Li, Y. & Das, D., 15 Sep 2010, In: Journal of Hazardous Materials . 181, 1-3, p. 154-160 7 p.

    Research output: Contribution to journalArticlepeer-review

ID: 258074552

Top