Chitosan/polyvinyl alcohol/hydroxyapatite nanocomposite membrane for the efficient adsorption of <scp>Congo</scp> red anionic dye-Reference-Cited by-同舟云学术

Chitosan/polyvinyl alcohol/hydroxyapatite nanocomposite membrane for the efficient adsorption of Congo red anionic dye

Published:2023-05-06 Issue:7 Volume:44 Page:4227-4242
ISSN:0272-8397
Container-title:Polymer Composites
language:en
Short-container-title:Polymer Composites

Author:

Zeynali Vahid¹,Mousavi Seyed Mahmoud¹^ORCID,Saljoughi Ehsan¹^ORCID,Kiani Shirin¹,Sillanpää Mika²³⁴⁵

Affiliation:

1. Chemical Engineering Department, Faculty of Engineering Ferdowsi University of Mashhad Mashhad Iran

2. Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering University of Johannesburg Doornfontein South Africa

3. Department of Applied Physics, Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi Malaysia

4. Zhejiang Rongsheng Environmental Protection Paper Co. LTD Zhejiang People's Republic of China

5. Department of Civil Engineering University Centre for Research & Development, Chandigarh University Gharuan, Mohali Punjab India

Abstract

AbstractThis work focused on fabricating a novel chitosan/polyvinyl alcohol/ hydroxyapatite (CPH) nanocomposite membrane and its application in removing the Congo red (CR) from aqueous solutions. After proper characterization of the chitosan/polyvinyl alcohol/hydroxyapatite adsorptive membrane, adsorption tests were carried out on the optimum nanocomposite membrane containing 1 wt% hydroxyapatite. The impact of temperature, contact time, initial dye concentration, adsorbent dosage, and pH was investigated. Results of isotherm and kinetic investigation revealed that Langmuir isotherm and pseudo‐second order kinetics best fitted experimental results with R2 values of 0.995. A relatively high adsorption capacity of 491 mg/g, higher than that of activated carbon, was achieved.

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,General Chemistry,Ceramics and Composites

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