Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst
We represent a copper nanoparticle (CuNPs)-templated chitosan (CS) nanocomposite as an effective catalyst for the catalytic reduction of aqueous hazardous organic micropollutants, which was synthesized via a facile in-situ reduction step of pre-chelated Cu2+ ions on CS hydrogel. The as-developed CuN...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Carbohydrate Polymer Technologies and Applications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666893922000822 |
| _version_ | 1797801737645457408 |
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| author | Chirag Batukbhai Godiya Sanjay Kumar Bum Jun Park |
| author_facet | Chirag Batukbhai Godiya Sanjay Kumar Bum Jun Park |
| author_sort | Chirag Batukbhai Godiya |
| collection | DOAJ |
| description | We represent a copper nanoparticle (CuNPs)-templated chitosan (CS) nanocomposite as an effective catalyst for the catalytic reduction of aqueous hazardous organic micropollutants, which was synthesized via a facile in-situ reduction step of pre-chelated Cu2+ ions on CS hydrogel. The as-developed CuNPs-templated CS nanocatalyst was thoroughly characterized using several spectroscopic methods. The CuNPs-templated CS nanocatalyst demonstrated excellent catalytic efficiency in the rapid reduction of aqueous methylene blue (MB) and 4-nitrophenol (4-NP). The reduction rates were well-complied with the pseudo-first-order kinetics and the corresponding rate constant values were estimated as 0.389 and 0.187 min−1, respectively for MB and 4-NP, which were significantly greater than numerous reported metal-based catalysts. The nanocatalyst can easily be recycled without substantially falling catalytic activity for four successive cycles. Based on the facile synthetic approach and excellent catalytic activity, the CuNPs-templated CS nanocatalyst can be an ideal catalyst for reducing hazardous aqueous contaminants for environmental protection. |
| first_indexed | 2024-03-13T04:55:02Z |
| format | Article |
| id | doaj.art-e088b616c0c940fea803e6d50fddd767 |
| institution | Directory Open Access Journal |
| issn | 2666-8939 |
| language | English |
| last_indexed | 2024-03-13T04:55:02Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbohydrate Polymer Technologies and Applications |
| spelling | doaj.art-e088b616c0c940fea803e6d50fddd7672023-06-18T05:03:39ZengElsevierCarbohydrate Polymer Technologies and Applications2666-89392023-06-015100267Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalystChirag Batukbhai Godiya0Sanjay Kumar1Bum Jun Park2Department of Chemical Engineering, KyungHee University, Yongin-17104, South Korea; Corresponding authors.Department of Chemistry, Muzaffarpur Institute of Technology, Muzaffarpur-82003, India; Department of Pharmacy, Muzaffarpur Institute of Technology, Muzaffarpur-82003, IndiaDepartment of Chemical Engineering, KyungHee University, Yongin-17104, South Korea; Corresponding authors.We represent a copper nanoparticle (CuNPs)-templated chitosan (CS) nanocomposite as an effective catalyst for the catalytic reduction of aqueous hazardous organic micropollutants, which was synthesized via a facile in-situ reduction step of pre-chelated Cu2+ ions on CS hydrogel. The as-developed CuNPs-templated CS nanocatalyst was thoroughly characterized using several spectroscopic methods. The CuNPs-templated CS nanocatalyst demonstrated excellent catalytic efficiency in the rapid reduction of aqueous methylene blue (MB) and 4-nitrophenol (4-NP). The reduction rates were well-complied with the pseudo-first-order kinetics and the corresponding rate constant values were estimated as 0.389 and 0.187 min−1, respectively for MB and 4-NP, which were significantly greater than numerous reported metal-based catalysts. The nanocatalyst can easily be recycled without substantially falling catalytic activity for four successive cycles. Based on the facile synthetic approach and excellent catalytic activity, the CuNPs-templated CS nanocatalyst can be an ideal catalyst for reducing hazardous aqueous contaminants for environmental protection.http://www.sciencedirect.com/science/article/pii/S2666893922000822CuNPs-templated chitosan nanocatalystCatalytic reductionMethylene blue4-nitrophenolRecyclability |
| spellingShingle | Chirag Batukbhai Godiya Sanjay Kumar Bum Jun Park Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst Carbohydrate Polymer Technologies and Applications CuNPs-templated chitosan nanocatalyst Catalytic reduction Methylene blue 4-nitrophenol Recyclability |
| title | Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst |
| title_full | Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst |
| title_fullStr | Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst |
| title_full_unstemmed | Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst |
| title_short | Superior catalytic reduction of methylene blue and 4-nitrophenol by copper nanoparticles-templated chitosan nanocatalyst |
| title_sort | superior catalytic reduction of methylene blue and 4 nitrophenol by copper nanoparticles templated chitosan nanocatalyst |
| topic | CuNPs-templated chitosan nanocatalyst Catalytic reduction Methylene blue 4-nitrophenol Recyclability |
| url | http://www.sciencedirect.com/science/article/pii/S2666893922000822 |
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