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The effect of surface modification of PMMA/chitosan composites on improving adsorption properties for chelating Pb2+

  • Xin Dai , Xiaohang Zhang EMAIL logo , Zhenxi Wang , Sheng Xu , Shangxi Zhang , Meng Cao and Xinde Jiang
Published/Copyright: June 27, 2019
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 39 Issue 7

Abstract

As lead-containing products, such as lead batteries, are widely used, water pollution problems caused by Pb2+ show a significant threat to the ecosystem and human health. To overcome this serious problem, the modified poly(methyl methacrylate) (PMMA)/chitosan (CS) composites were prepared by adding CS into the PMMA matrix as functional filler and surface modification. The structure, thermal stability, size, morphology and adsorption properties of the modified PMMA/CS composites were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, and inductively coupled plasma optical atomic emission spectrometry. The results indicated that the modified PMMA/CS composites had a uniform size of about 1 μm and showed quite good thermal stability. In addition, the Pb2+ removal of the modified PMMA/CS composite reached up to 98% when the initial Pb2+ concentrations are under 100 mg l−1. The results of the adsorption isotherms indicated that the Langmuir isotherm fits best to the experimental data when compared with the Freundlich isotherm and Temkin isotherm. All these results demonstrate that modified PMMA/CS has a good adsorption property and can be a promising adsorbent for chelating Pb2+.

Keywords: adsorption isotherm; functionalization; lead ions; poly(methyl methacrylate); removal

Funding source: Jiangxi Provincial Department of Education Natural Science Foundation of China

Award Identifier / Grant number: GJJ151095 and GJJ171016

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 21706113 and 21702090

Funding statement: The authors are grateful for the financial support from the Jiangxi Provincial Department of Education Natural Science Foundation of China (GJJ151095 and GJJ171016), and the National Natural Science Foundation of China (21706113 and 21702090, Funder Id: http://dx.doi.org/10.13039/501100001809).

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Received: 2019-01-25
Accepted: 2019-05-08
Published Online: 2019-06-27
Published in Print: 2019-07-26

©2019 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/polyeng-2019-0005
Keywords for this article
adsorption isotherm; functionalization; lead ions; poly(methyl methacrylate); removal

Articles in the same Issue

  1. Frontmatter
  2. Material properties
  3. Banana and plantain fiber-reinforced polymer composites
  4. Characterizations of PMMA-based polymer electrolyte membranes with Al2O3
  5. Effects of grafting parameters on the properties of proton exchange membranes based on sulfo-functionalized porous silicon for micro direct methanol fuel cells
  6. The effect of surface modification of PMMA/chitosan composites on improving adsorption properties for chelating Pb2+
  7. Characterization of organic solar cells using semiconducting polymers with different bandgaps
  8. Hindered phenol-mediated damping of polyacrylate rubber: effect of hydrogen bonding strength on the damping properties
  9. Correlation between fiber orientation distribution and mechanical anisotropy in glass-fiber-reinforced composite materials
  10. Preparation and assembly
  11. Replacement of sodium alginate polymer, urea and sodium bicarbonate in the conventional reactive printing of cellulosic cotton
  12. Carboxylic acid modified pH-responsive composite polymer particles
  13. Synthesis of SiO2 nanoparticle from bamboo leaf and its incorporation in PDMS membrane to enhance its separation properties
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