Preparation of polyacrylamide–montmorillonite nanocomposite and its application in Cr(III) adsorption

The polyacrylamide–montmorillonite “water in water” (PAM-MMT W/W) emulsion was prepared by dispersion polymerization method in the presence of organo-montmorillonite (OMMT). Based on the analysis of the polymerization process, the structure of material was investigated using thermogravimetry, Fourier transform infrared spectroscopy, X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy experiments. Here, the dispersion was determined to be a blend of PAM W/W emulsion and PAM network interspersed by MMT particles, this unique structure of the material was considered to provide better adsorption ability compared to PAM without MMT. Therefore, a PAM-MMT adsorbent was made from the PAM-MMT W/W emulsion, and its adsorption capacity toward Cr(III), one of the heavy metal pollutants from the tannery waste was investigated. The PAM-MMT nanocomposite was demonstrated to have good Cr(III) removal performance, the maximum adsorption capacity of the nanocomposite was found to be 59.74 mg/g at a pH of 5.5 and temperature of 70°C. Results show that pseudo-second-order kinetic model and Langmuir isotherm were applicable for Cr(III) adsorption.

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Work Title Preparation of polyacrylamide–montmorillonite nanocomposite and its application in Cr(III) adsorption
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Open Access
Creators
  1. Jinghong Qiu
  2. Xiaosheng Du
  3. Sridhar Komarneni
  4. Haibo Wang
  5. Xu Cheng
  6. Zongliang Du
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Journal of Applied Polymer Science
Publication Date September 20, 2020
Publisher Identifier (DOI)
  1. https://doi.org/10.1002/app.49065
Deposited November 18, 2021

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Version 1
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  • Created
  • Added Jinghong_Revised_Manuscript.docx
  • Added Creator Jinghong Qiu
  • Added Creator Xiaosheng Du
  • Added Creator Sridhar Komarneni
  • Added Creator Haibo Wang
  • Added Creator Xu Cheng
  • Added Creator Zongliang Du
  • Published
  • Updated
  • Updated