Fabrication of polyaniline/poly(vinyl alcohol)/montmorillonite hybrid aerogels toward efficient adsorption of organic dye pollutants

Lyu, Wei; Li, J.; Trchová, Miroslava; Wang, G.; Liao, Y.; Bober, Patrycja; Stejskal, Jaroslav

doi:https://dx.doi.org/10.1016/j.jhazmat.2022.129004

Number of the records: 1

Fabrication of polyaniline/poly(vinyl alcohol)/montmorillonite hybrid aerogels toward efficient adsorption of organic dye pollutants

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SYSNO ASEP	0557013
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Fabrication of polyaniline/poly(vinyl alcohol)/montmorillonite hybrid aerogels toward efficient adsorption of organic dye pollutants
Author(s)	Lyu, Wei (UMCH-V) Li, J. (CN) Trchová, Miroslava (UMCH-V)_{RID, ORCID} Wang, G. (CN) Liao, Y. (CN) Bober, Patrycja (UMCH-V)_{RID, ORCID, SAI} Stejskal, Jaroslav (UMCH-V)_{RID, ORCID, SAI}
Article number	129004
Source Title	Journal of Hazardous Materials. - : Elsevier - ISSN 0304-3894 Roč. 435, 5 August (2022)
Number of pages	12 s.
Language	eng - English
Country	NL - Netherlands
Keywords	polyaniline ; poly(vinyl alcohol) ; montmorillonite
Subject RIV	CD - Macromolecular Chemistry
OECD category	Polymer science
R&D Projects	GA19-04859S GA ČR - Czech Science Foundation (CSF)
Method of publishing	Limited access
Institutional support	UMCH-V - RVO:61389013
UT WOS	000799036300002
EID SCOPUS	85129439277
DOI	10.1016/j.jhazmat.2022.129004
Annotation	Fabrication of adsorbents with excellent adsorption capacity, outstanding stability, easy separation ability, excellent recyclability and widely generality for organic dyes removal from wastewater remains challenging. Herein, three-dimensional polyaniline/poly(vinyl alcohol)/montmorillonite (PANI/PVAL/MMT) hybrid aerogels with easy separation performance and highly effective reusable adsorption on both anionic and cationic dyes were fabricated by a simple in-situ polymerization method. As-prepared hybrid aerogels were characterized via infrared and Raman spectra, scanning electron microscopy, energy dispersive spectra mapping, small and wide-angle X-ray scattering, thermogravimetric analysis, mercury intrusion porosimetry and elemental analysis. The results showed that MMT particles were successfully incorporated into aerogel matrix. Well-defined hierarchical structure, where PANI nanofibers are coated on the skeleton wall, can be observed for PANI/PVAL/MMT when the incorporation amount of MMT was around 11.1 wt%. The adsorption performance of as-prepared hybrid aerogels on both anionic and cationic dyes was systemically carried out at different solution pH, adsorbent dosage and initial dye concentration. The data analysis showed that the adsorption process for PVAL/PANI/MMT aerogel for Reactive Black 5, methyl orange and safranin followed Freundlich isotherm and the maximum experimental adsorption capacities were found to be 199, 251 and 57.0 mg g−1 at 25 °C, respectively. Mechanism studies indicated that the electrostatic interaction is the main driving force for the adsorption of dyes. The results demonstrated that the fabricated hybrid aerogel is an efficient adsorbent for the removal of both anionic and cationic organic dyes.
Workplace	Institute of Macromolecular Chemistry
Contact	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Year of Publishing	2023
Electronic address	https://www.sciencedirect.com/science/article/pii/S0304389422007932?via%3Dihub

Number of the records: 1