Magnetic Fe3O4 nanoparticles loaded guava leaves powder impregnated into calcium alginate hydrogel beads (Fe3O4-GLP@CAB) for efficient removal of methylene blue dye from aqueous environment: Synthesis, characterization, and its adsorption performance

Venkata Subbaiah Munagapati; Hsin-Yu Wen; Anjani R K Gollakota; Jet-Chau Wen; Kun-Yi Andrew Lin; Chi-Min Shu; Vijaya Yarramuthi; Praveen Kumar Basivi; Guda Mallikarjuna Reddy; Grigory V Zyryanov

doi:10.1016/j.ijbiomac.2023.125675

Magnetic Fe₃O₄ nanoparticles loaded guava leaves powder impregnated into calcium alginate hydrogel beads (Fe₃O₄-GLP@CAB) for efficient removal of methylene blue dye from aqueous environment: Synthesis, characterization, and its adsorption performance

Int J Biol Macromol. 2023 Aug 15:246:125675. doi: 10.1016/j.ijbiomac.2023.125675. Epub 2023 Jul 4.

Affiliations

¹ Research Centre for Soil & Water Resources and Natural Disaster Prevention (SWAN), National Yunlin University of Science and Technology, Douliou, Yunlin 64002, Taiwan, ROC.
² Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, PR China.
³ Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliou, Yunlin 64002, Taiwan, ROC; Department of Safety, Health, and Environmental Engineering, National Yunlin University of Science and Technology, Douliou, Yunlin 64002, Taiwan, ROC.
⁴ Research Centre for Soil & Water Resources and Natural Disaster Prevention (SWAN), National Yunlin University of Science and Technology, Douliou, Yunlin 64002, Taiwan, ROC; Department of Safety, Health, and Environmental Engineering, National Yunlin University of Science and Technology, Douliou, Yunlin 64002, Taiwan, ROC. Electronic address: wenjc@yuntech.edu.tw.
⁵ Department of Environmental Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan, ROC.
⁶ Department of Safety, Health, and Environmental Engineering, National Yunlin University of Science and Technology, Douliou, Yunlin 64002, Taiwan, ROC.
⁷ Department of Chemistry, Vikrama Simhapuri University, Nellore 524320, Andhra Pradesh, India.
⁸ Pukyong National University Industry-University Cooperation Foundation, Pukyong National University, Busan 48513, Republic of Korea.
⁹ Chemical Engineering Institute, Ural Federal University, 620002 Yekaterinburg, Russian Federation; Department of Chemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India.
¹⁰ Chemical Engineering Institute, Ural Federal University, 620002 Yekaterinburg, Russian Federation; Ural Division of the Russian Academy of Sciences, I. Ya. Postovskiy Institute of Organic Synthesis, 22 S. Kovalevskoy Street, Yekaterinburg, Russian Federation.

PMID: 37414311
DOI: 10.1016/j.ijbiomac.2023.125675

Abstract

In the present work, a novel Fe₃O₄-GLP@CAB was successfully synthesized via a co-precipitation procedure and applied for the removal of methylene blue (MB) from aqueous environment. The structural and physicochemical characteristics of the as-prepared materials were explored using a variety of characterization methods, including pH_PZC, XRD, VSM, FE-SEM/EDX, BJH/BET, and FTIR. The effects of several experimental factors on the uptake of MB using Fe₃O₄-GLP@CAB were examined through batch experiments. The highest MB dye removal efficiency of Fe₃O₄-GLP@CAB was obtained to be 95.2 % at pH 10.0. Adsorption equilibrium isotherm data at different temperatures showed an excellent agreement with the Langmuir model. The adsorption uptake of MB onto Fe₃O₄-GLP@CAB was determined as 136.7 mg/g at 298 K. The kinetic data were well-fitted by the pseudo-first-order model, indicating that physisorption mainly controlled it. Several thermodynamic variables derived from adsorption data, like as ΔG^o, ΔS^o, ΔH^o, and E_a, accounted for a favourable, spontaneous, exothermic, and physisorption process. Without seeing a substantial decline in adsorptive performance, the Fe₃O₄-GLP@CAB was employed for five regeneration cycles. Because they can be readily separated from wastewater after treatment, the synthesized Fe₃O₄-GLP@CAB was thus regarded as a highly recyclable and effective adsorbent for MB dye.

Keywords: Guava leaves powder; Magnetic hydrogel beads; Sodium alginate.

MeSH terms

Adsorption
Alginates / chemistry
Hydrogels
Hydrogen-Ion Concentration
Kinetics
Magnetic Phenomena
Methylene Blue / chemistry
Nanoparticles*
Plant Leaves
Powders
Psidium*
Water Pollutants, Chemical* / chemistry

Substances

Powders
Methylene Blue
Alginates
Hydrogels
Water Pollutants, Chemical