IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v14y2022i4p2106-d747906.html
   My bibliography  Save this article

Study on the Performance of Composite Adsorption of Cu 2+ by Chitosan/β-Cyclodextrin Cross-Linked Zeolite

Author

Listed:
  • Qiuqiu Xiong

    (School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China)

  • Fenge Zhang

    (School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China)

Abstract

In order to remove Cu 2+ from wastewater, a kind of microsphere adsorbent (SCDO) with high efficiency for Cu 2+ adsorption was prepared by the microdrop condensation method, where chitosan (CTS) and sodium alginate (SA) were used as the matrix to crosslink β-cyclodextrin (β-CD) and zeolite (Zeo). The structure and properties of SCDO were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Upon that, the adsorption performance of SCDO for Cu 2+ was studied, in which the effects of pH, initial concentration, dosage, adsorption time and temperature were investigated. The results showed that the removal rate of Cu 2+ reached 97.08%, and the maximum adsorption capacity was 24.32 mg/g with the temperature at 30 °C, the dosage of SCDO at 12 g/L, the initial concentration of Cu 2+ at 100 mg/L, the pH of the solution at 6.0 and the adsorption time at 120 min, respectively. The adsorption process of Cu 2+ by SCDO occurred in accordance with quasi-second-order kinetics model and Langmuir adsorption isotherm. After four repeats of continuous adsorption and desorption, the regenerative removal rate of Cu 2+ could still reach 84.28%, which indicated that SCDO had outstanding reusability.

Suggested Citation

  • Qiuqiu Xiong & Fenge Zhang, 2022. "Study on the Performance of Composite Adsorption of Cu 2+ by Chitosan/β-Cyclodextrin Cross-Linked Zeolite," Sustainability, MDPI, vol. 14(4), pages 1-17, February.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:4:p:2106-:d:747906
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/14/4/2106/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2071-1050/14/4/2106/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:14:y:2022:i:4:p:2106-:d:747906. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.