Facile Hydrothermal Synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub>/Cellulose Nanocomposite as Highly Active Catalyst for 4-Nitrophenol and Organic Dye Reduction
Novel effluent treatment solutions for dangerous organic pollutants are crucial worldwide. In recent years, chemical reduction using noble metal-based nanocatalysts and NaBH<sub>4</sub>, a reducing agent, has become common practice for eliminating organic contaminants from aquatic enviro...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/16/3373 |
| _version_ | 1811153791842516992 |
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| author | An Nang Vu Hoa Ngoc Thi Le Thang Bach Phan Hieu Van Le |
| author_facet | An Nang Vu Hoa Ngoc Thi Le Thang Bach Phan Hieu Van Le |
| author_sort | An Nang Vu |
| collection | DOAJ |
| description | Novel effluent treatment solutions for dangerous organic pollutants are crucial worldwide. In recent years, chemical reduction using noble metal-based nanocatalysts and NaBH<sub>4</sub>, a reducing agent, has become common practice for eliminating organic contaminants from aquatic environments. We suggest a straightforward approach to synthesizing magnetic cellulose nanocrystals (CNCs) modified with magnetite (Fe<sub>3</sub>O<sub>4</sub>) and silver nanoparticles (Ag NPs) as a catalyst for organic contamination removal. Significantly, the CNC surface was decorated with Ag NPs without using any reducing agents or stabilizers. PXRD, FE-SEM, TEM, EDX, VSM, BET, and zeta potential tests characterized the Ag/Fe<sub>3</sub>O<sub>4</sub>/CNC nanocomposite. The nanocomposite’s catalytic activity was tested by eliminating 4-nitrophenol (4-NP) and the organic dyes methylene blue (MB) and methyl orange (MO) in an aqueous solution at 25 °C. The Ag/Fe<sub>3</sub>O<sub>4</sub>/CNC nanocomposite reduced 4-NP and decolored these hazardous organic dyes in a short time (2 to 5 min) using a tiny amount of catalyst (2.5 mg for 4-NP and 15 mg for MO and MB). The magnetic catalyst was removed and reused three times without losing catalytic activity. This work shows that the Ag/Fe<sub>3</sub>O<sub>4</sub>/CNC nanocomposite can chemically reduce harmful pollutants in effluent for environmental applications. |
| first_indexed | 2024-03-10T23:37:49Z |
| format | Article |
| id | doaj.art-9b6c5f921d7641ab8b26bb6dfcb64840 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T23:37:49Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-9b6c5f921d7641ab8b26bb6dfcb648402023-11-19T02:43:14ZengMDPI AGPolymers2073-43602023-08-011516337310.3390/polym15163373Facile Hydrothermal Synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub>/Cellulose Nanocomposite as Highly Active Catalyst for 4-Nitrophenol and Organic Dye ReductionAn Nang Vu0Hoa Ngoc Thi Le1Thang Bach Phan2Hieu Van Le3Faculty of Materials Science and Technology, University of Science, VNU-HCM, Ho Chi Minh City 700000, VietnamFaculty of Materials Science and Technology, University of Science, VNU-HCM, Ho Chi Minh City 700000, VietnamVietnam National University Ho Chi Minh City, Ho Chi Minh City 700000, VietnamFaculty of Materials Science and Technology, University of Science, VNU-HCM, Ho Chi Minh City 700000, VietnamNovel effluent treatment solutions for dangerous organic pollutants are crucial worldwide. In recent years, chemical reduction using noble metal-based nanocatalysts and NaBH<sub>4</sub>, a reducing agent, has become common practice for eliminating organic contaminants from aquatic environments. We suggest a straightforward approach to synthesizing magnetic cellulose nanocrystals (CNCs) modified with magnetite (Fe<sub>3</sub>O<sub>4</sub>) and silver nanoparticles (Ag NPs) as a catalyst for organic contamination removal. Significantly, the CNC surface was decorated with Ag NPs without using any reducing agents or stabilizers. PXRD, FE-SEM, TEM, EDX, VSM, BET, and zeta potential tests characterized the Ag/Fe<sub>3</sub>O<sub>4</sub>/CNC nanocomposite. The nanocomposite’s catalytic activity was tested by eliminating 4-nitrophenol (4-NP) and the organic dyes methylene blue (MB) and methyl orange (MO) in an aqueous solution at 25 °C. The Ag/Fe<sub>3</sub>O<sub>4</sub>/CNC nanocomposite reduced 4-NP and decolored these hazardous organic dyes in a short time (2 to 5 min) using a tiny amount of catalyst (2.5 mg for 4-NP and 15 mg for MO and MB). The magnetic catalyst was removed and reused three times without losing catalytic activity. This work shows that the Ag/Fe<sub>3</sub>O<sub>4</sub>/CNC nanocomposite can chemically reduce harmful pollutants in effluent for environmental applications.https://www.mdpi.com/2073-4360/15/16/3373catalytic dye reductioncellulose nanocrystalsmagnetic nanocomposite4-nitrophenolwastewater treatment |
| spellingShingle | An Nang Vu Hoa Ngoc Thi Le Thang Bach Phan Hieu Van Le Facile Hydrothermal Synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub>/Cellulose Nanocomposite as Highly Active Catalyst for 4-Nitrophenol and Organic Dye Reduction Polymers catalytic dye reduction cellulose nanocrystals magnetic nanocomposite 4-nitrophenol wastewater treatment |
| title | Facile Hydrothermal Synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub>/Cellulose Nanocomposite as Highly Active Catalyst for 4-Nitrophenol and Organic Dye Reduction |
| title_full | Facile Hydrothermal Synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub>/Cellulose Nanocomposite as Highly Active Catalyst for 4-Nitrophenol and Organic Dye Reduction |
| title_fullStr | Facile Hydrothermal Synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub>/Cellulose Nanocomposite as Highly Active Catalyst for 4-Nitrophenol and Organic Dye Reduction |
| title_full_unstemmed | Facile Hydrothermal Synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub>/Cellulose Nanocomposite as Highly Active Catalyst for 4-Nitrophenol and Organic Dye Reduction |
| title_short | Facile Hydrothermal Synthesis of Ag/Fe<sub>3</sub>O<sub>4</sub>/Cellulose Nanocomposite as Highly Active Catalyst for 4-Nitrophenol and Organic Dye Reduction |
| title_sort | facile hydrothermal synthesis of ag fe sub 3 sub o sub 4 sub cellulose nanocomposite as highly active catalyst for 4 nitrophenol and organic dye reduction |
| topic | catalytic dye reduction cellulose nanocrystals magnetic nanocomposite 4-nitrophenol wastewater treatment |
| url | https://www.mdpi.com/2073-4360/15/16/3373 |
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