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Thongrueng M, Sudsakorn K, Charoenchaitrakool M, Seubsai A, Panchan N, Devahastin S, Niamnuy C. Synthesis and Characterization of Environmentally Friendly β-Cyclodextrin Cross-Linked Cellulose/Poly(vinyl alcohol) Hydrogels for Adsorption of Malathion. ACS OMEGA 2024; 9:22635-22649. [PMID: 38826516 PMCID: PMC11137713 DOI: 10.1021/acsomega.4c00037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 06/04/2024]
Abstract
The widespread use of malathion enhances agricultural plant productivity by eliminating pests, weeds, and diseases, but it may lead to serious environmental pollution and potential health risks for humans and animals. To mitigate these issues, environmentally friendly hydrogel adsorbents for malathion were synthesized using biodegradable polymers, specifically cellulose, β-cyclodextrin (β-CD), poly(vinyl alcohol) (PVA), and biobased epichlorohydrin as a cross-linker. This study investigated the effects of the cellulose-to-PVA ratio and epichlorohydrin (ECH) content on the properties and malathion adsorption capabilities of β-CD/cellulose/PVA hydrogels. It was found that the gel content of the hydrogels increased with a higher cellulose-to PVA and ECH ratio, whereas the swelling ratio decreased, indicating a denser structure that impedes water permeation. In addition, various parameters affecting the malathion adsorption capacity of the hydrogel, namely, contact time, pH, hydrogel dosage, initial concentration of malathion, and temperature, were studied. The hydrogel prepared with a β-CD/cellulose/PVA ratio of 20:40:40 and 9 mL of ECH exhibited the highest malathion adsorption rate and capacity, which indicated an equilibrium adsorption capacity of 656.41 mg g-1 at an initial malathion concentration of 1000 mg L-1. Fourier transform infrared spectroscopy (FTIR), ζ-potential, and X-ray photoelectron spectroscopy (XPS) and NMR spectroscopy confirmed malathion adsorption within the hydrogel. The adsorption process followed intraparticle diffusion kinetics and corresponded to Freundlich isotherms, indicating multilayer adsorption on heterogeneous substrates within the adsorbent, facilitated by diffusion.
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Affiliation(s)
- Maneerat Thongrueng
- Department
of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Kandis Sudsakorn
- Department
of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Manop Charoenchaitrakool
- Department
of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
- Research
Network NANOTEC-Kasetsart on NanoCatalysts and NanoMaterials for Sustainable
Energy and Environment: RNN-CMSEE and Center for Advanced Studies
in Nanotechnology for Chemical, Food and Agricultural Industrials, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Anusorn Seubsai
- Department
of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
- Research
Network NANOTEC-Kasetsart on NanoCatalysts and NanoMaterials for Sustainable
Energy and Environment: RNN-CMSEE and Center for Advanced Studies
in Nanotechnology for Chemical, Food and Agricultural Industrials, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
| | - Noppadol Panchan
- Faculty
of Engineering and Technology, Mahanakorn
University of Technology, 140 Cheumsamphan Road, Nongchok, Bangkok 10530, Thailand
| | - Sakamon Devahastin
- Advanced
Food Processing Research Laboratory, Department of Food Engineering,
Faculty of Engineering, King Mongkut’s
University of Technology Thonburi, 126 Pracha u-tid Road, Tungkru, Bangkok 10140, Thailand
- The
Academy of Science, The Royal Society of
Thailand, Dusit, Bangkok 10300, Thailand
| | - Chalida Niamnuy
- Department
of Chemical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
- Research
Network NANOTEC-Kasetsart on NanoCatalysts and NanoMaterials for Sustainable
Energy and Environment: RNN-CMSEE and Center for Advanced Studies
in Nanotechnology for Chemical, Food and Agricultural Industrials, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand
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