Methamidophos removal from aqueous solutions using a super adsorbent based on crosslinked poly(vinyl alcohol) hydrogel | Zendy

Valdés Oscar | Zendy; ÁvilaSalas Fabián | Zendy; Marican Adolfo | Zendy; Fuentealba Natalia | Zendy; Villaseñor Jorge | Zendy; ArenasSalinas Mauricio | Zendy; Argandoña Yerko | Zendy; DuránLara Esteban F. | Zendy

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Methamidophos removal from aqueous solutions using a super adsorbent based on crosslinked poly(vinyl alcohol) hydrogel

Author(s) -

Valdés Oscar,

ÁvilaSalas Fabián,

Marican Adolfo,

Fuentealba Natalia,

Villaseñor Jorge,

ArenasSalinas Mauricio,

Argandoña Yerko,

DuránLara Esteban F.

Publication year - 2018

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.45964

Subject(s) - vinyl alcohol , aqueous solution , methamidophos , thermogravimetric analysis , materials science , self healing hydrogels , fourier transform infrared spectroscopy , chemical engineering , polymer chemistry , swelling , adsorption , nuclear chemistry , chemistry , polymer , composite material , organic chemistry , pesticide , agronomy , biology , engineering

This study describes the absorption of methamidophos (MMP) from aqueous solution by crosslinked poly(vinyl alcohol) (PVA) hydrogel synthesized using malic acid (MA) as a crosslinker (CLPHMA). The prepared hydrogels were characterized by FTIR spectroscopy, scanning electron microscopy, and the thermal properties were studied by using thermal gravimetric analysis. Also, the swelling index as a function of PVA:MA composition and pH were studied. An in silico rational study, which involved all‐atom molecular dynamics simulations of PVA:MA systems in proportions 10:2, 10:4, and 10:6 was performed. The in silico studies concluded that the more suitable crosslinking degree for MMP pesticide removal is with the 20% (wt %) of crosslinker (CLPHMA‐20). The experimental analysis of MMP removal with CLPHMA was performed as well. It was found that the prepared CLPHMA‐20 had a great efficiency to recover around 86% of MMP from their solutions. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 45964.

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