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Zeolite reinforced carboxymethyl cellulose‐Na + ‐ g‐cl ‐poly(AAm) hydrogel composites with pH responsive phosphate release behavior
Author(s) -
Singh Anupama,
Sarkar Dhruba Jyoti,
Mittal Shailja,
Dhaka Rashmi,
Maiti Pushkar,
Singh Aarushi,
Raghav Taruna,
Solanki Dilip,
Ahmed Nayan,
Singh Shashi Bala
Publication year - 2019
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.47332
Subject(s) - monocalcium phosphate , materials science , controlled release , phosphate , fourier transform infrared spectroscopy , aqueous solution , cellulose , carboxymethyl cellulose , composite material , chemical engineering , composite number , polymerization , polymer , nuclear chemistry , polymer chemistry , chemistry , organic chemistry , nanotechnology , engineering , metallurgy , sodium , fishery , fish <actinopterygii> , fish meal , biology
Phosphate fixation in soils is a matter of concern in agriculture. Conventional application of phosphorus fertilizer suffers from low P use constraint, particularly in acidic soils. Rhizosphere centric slow release strategy bears tremendous prospects. In the present study, monocalcium phosphate (MCP) was impregnated in zeolite reinforced CMC‐Na + ‐ g‐cl ‐Poly(Aam) hydrogel composites with aim to develop slow phosphate release device for soil application. X‐ray diffraction, scanning electron microscopy, and Fourier transform‐infrared spectroscopy confirmed the successful synthesis of slow release fertilizer formulations. Presence of zeolite in composite matrix during polymerization resulted in higher MCP loading. The “burst release” phenomena under neutral aqueous environment as compared to diffusion led slow release mechanism under acidic condition suggesting that phosphate release from developed composite matrix was pH responsive. The developed materials possess potential to serve as tool for improving phosphate use efficiency under resource stress agriculture. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47332.