Title:	Magnetic CuFe2O4 Nanoparticles Immobilized on Modified Rice Husk-Derived Zeolite for Chlorogenic Acid Adsorption.
Authors:	NEVES, T. R. SCHILDT, L. F. L. SILVA, M. L. L. S. e VASCONCELOS, V. V. V. DI CONZO C. MURA, F. ROSSI. M. VARVARO, G. ABDOLRAHIMI, M. QUARANTA, S. FERREIRA, S. A. D. PARIS, E. C.
Affiliation:	FEDERAL UNIVERSITY OF SÃO CARLOS FEDERAL UNIVERSITY OF SÃO CARLOS FEDERAL UNIVERSITY OF SÃO CARLOS FEDERAL UNIVERSITY OF SÃO CARLOS POLYTECHNIC OF TURIN SAPIENZA UNIVERSITY OF ROME SAPIENZA UNIVERSITY OF ROME CNR, ISTITUTO DI STRUTTURA DELLA MATERIA UNIVERSITÀ DEGLI STUDI DI GENOVA ITALIAN NATIONAL RESEARCH COUNCIL (ISMN–CNR) FEDERAL UNIVERSITY OF ESPÍRITO SANTO ELAINE CRISTINA PARIS, CNPDIA.
Date Issued:	2024
Citation:	Magnetochemistry, v. 10, 2024.
Pages:	1 - 24
Description:	Adsorption has emerged as a promising method for removing polyphenols in water remediation. This work explores chlorogenic acid (CGA) adsorption on zeolite-based magnetic nanocomposites synthesized from rice husk waste. In particular, enhanced adsorbing materials were attained using a hydrothermal zeolite precursor (Z18) synthesized from rice husk and possessing a remarkable specific surface area (217.69 m2 g −1 ). A composite material was prepared by immobilizing magnetic copper ferrite on Z18 (Z18:CuFe2O4 ) to recover the zeolite adsorbent. In addition, Z18 was modified (Z18 M) with a mixture of 3-minopropyltriethoxysilane (APTES) and trimethylchlorosilane (TMCS) to improve the affinity towards organic compounds in the final nanocomposite system (Z18 M:CuFe2O4 ). While the unmodified composite demonstrated inconsequential CGA removal rates, Z18 M:CuFe2O4 could adsorb 89.35% of CGA within the first hour of operation. Z18 M:CuFe2O4 showed no toxicity for seed germination and achieved a mass recovery of 85% (due to a saturation magnetization of 4.1 emu g−1 ) when an external magnetic field was applied. These results suggest that adsorbing magnetic nanocomposites are amenable to CGA polyphenol removal from wastewater. Furthermore, the reuse, revalorization, and conversion into value-added materials of agro-industrial waste may allow the opportunity to implement sustainability and work towards a circular economy.
Keywords:	Magnetic nanocomposite Zeolite Rice husk
DOI:	https://doi.org/10.3390/magnetochemistry10110087
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPDIA)