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Published in: Polymer Bulletin 10/2019

06-12-2018 | Original Paper

CdS quantum dot nanocomposite hydrogels based on κ-carrageenan and poly (acrylic acid), photocatalytic activity and dye adsorption behavior

Authors: Maryam Dargahi, Hossein Ghasemzadeh, Azim Torkaman

Published in: Polymer Bulletin | Issue 10/2019

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Abstract

Novel CdS quantum dot nanocomposite hydrogels (QD-NCH) were synthesized by in situ copolymerization cross-linking method using acrylic acid and κ-carrageenan in mild condition followed by embedding CdS QDs. The structure and morphology of CdS QD-NCH were characterized by FT-IR, SEM, TEM, and TGA/DTG techniques. The optical properties of the CdS QD-NCH were studied by UV–Vis and fluorescence spectroscopy. The CdS QD-NCH was applied for the adsorption of cationic dyes: crystal violet (CV) and malachite green (MG). The influence of experimental condition, e.g., adsorbent dosage, pH, contact time, initial dye concentration, and temperature on the dye adsorption behavior was studied. The adsorption kinetic followed from the pseudo-first-order model. The experimental isotherm data also well fitted with Freundlich and Langmuir isotherm models for the adsorption of CV and MG, respectively.

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Literature
Metadata
Title
CdS quantum dot nanocomposite hydrogels based on κ-carrageenan and poly (acrylic acid), photocatalytic activity and dye adsorption behavior
Authors
Maryam Dargahi
Hossein Ghasemzadeh
Azim Torkaman
Publication date
06-12-2018
Publisher
Springer Berlin Heidelberg
Published in
Polymer Bulletin / Issue 10/2019
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-018-2628-z

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