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Efficient Removal of Paraquat Pollutants Using Magnetic Biochar Derived from Corn Husk Waste A Sustainable Approach for Water Remediation
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Document Title
Efficient Removal of Paraquat Pollutants Using Magnetic Biochar Derived from Corn Husk Waste A Sustainable Approach for Water Remediation
Author
Damdib S. Siyasukh A. Vanichsetakul B. Phamornpiboon P. Thanachayanont C. Punyapalakul P. Tonanon N.
Affiliations
Bio-Circular-Green Economy Technology and Engineering Center (BCGeTEC) Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok 10330 Thailand; Research Laboratory of Pollution Treatment and Environmental Material (PTEM) Department of Industrial Chemistry Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand; Materials Science Research Center Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand; National Metal and Materials Technology Center 114 Thailand Science Park Paholyothin Rd. Klong 1 Klong Luang 12120 Thailand; Department of Environmental Engineering Faculty of Engineering Chulalongkorn University Bangkok 10330 Thailand; Research Unit Control of Emerging Micropollutants in Environment Chulalongkorn University Bangkok 10330 Thailand
Type
Article
Source Title
Adsorption Science and Technology
ISSN
2636174
Year
2023
Volume
2023
Open Access
All Open Access Gold Green
Publisher
Hindawi Limited
DOI
10.1155/2023/5512881
Abstract
Due to the widespread production of maize the waste created by this crop has become a serious concern. This study applied the concept of waste circulation to the production of magnetic biochar from corn husk waste to remediate paraquat-contaminated water. Magnetic biochar (MB) was produced by impregnating maize husks with iron and carbonizing the residue in a nitrogen environment. Carbonized MB at the temperature of 850?C (MB-01-850) exhibited a combination of microporous and mesoporous structures (Vmeso=0.30 cm3/g Vmicro=0.12 cm3/g) while biochar created only a microporous structure (Vmicro=0.11 cm3/g). According to the findings Fe(NO3)3 significantly affected the increase in mesopore formation after carbonization. In addition biochar exhibits excellent magnetic responsiveness. MB-01-850 reached equilibrium within approximately 20 min in synthetic water. Batch adsorption studies showed that MB-01-850 had maximum adsorption capacities (Q0) of 34.97 mg/g and 31.63 mg/g for synthetic and natural water respectively. The unmodified biochar (without mesopores) had a Q0 of 4.08 mg/g. This indicates that the presence of mesopores improves the effectiveness of paraquat adsorption. Additionally the adsorption performance of magnetic biochar exhibited no statistically significant variance when tested under natural water conditions. Furthermore magnetic biochar demonstrates impressive regeneration capacity allowing it to be regenerated almost entirely for a minimum of four cycles using a sodium hydroxide (NaOH) solution with a concentration equal to or greater than 0.5 M. ? 2023 Sakonsupa Damdib et al.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
License
CC BY
Rights
Authors
Publication Source
WOS