Sonochemical Preparation of a Magnet-Responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 Adsorbent for Efficient Cu<sup>2+</sup> Removal
This work presents a novel approach to synthesizing magnetic core-shell nanocomposites, consisting of magnetic nanoparticles and a metal-organic framework, for environmental applications. The synthesis is based on the encapsulation of magnetic Fe<sub>3</sub>O<sub>4</sub> nano...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/5/753 |
| _version_ | 1797474325027094528 |
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| author | Trung Tuyen Bui Duc Cuong Nguyen Si Hiep Hua Hyungphil Chun Yong Shin Kim |
| author_facet | Trung Tuyen Bui Duc Cuong Nguyen Si Hiep Hua Hyungphil Chun Yong Shin Kim |
| author_sort | Trung Tuyen Bui |
| collection | DOAJ |
| description | This work presents a novel approach to synthesizing magnetic core-shell nanocomposites, consisting of magnetic nanoparticles and a metal-organic framework, for environmental applications. The synthesis is based on the encapsulation of magnetic Fe<sub>3</sub>O<sub>4</sub> nanoparticles with microporous zeolitic imidazolate framework-8 (ZIF-8) nanocrystals via ultrasonic activation under a continuous supply of precursor solutions. This sonochemical approach is proven to be a fast, cost-effective, and controllable route for the preparation of magnet-responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 nanoparticles with a core-shell structure. The functional nanomaterial possesses a high content of ZIF-8 and combined micro/mesoporosity, and thus can be used as adsorbents that can be easily separated using a magnet. In particular, the sonochemically prepared Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 exhibits significant adsorption performance for the removal of copper ions from water: a short adsorption time (10 min), high maximum uptake capacity (345 mg g<sup>−1</sup>), and excellent removal efficiency (95.3%). These performances are interpreted and discussed based on the materials characteristics of Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 established by microscopy, gas sorption, X-ray diffraction, and thermal analysis. |
| first_indexed | 2024-03-09T20:28:27Z |
| format | Article |
| id | doaj.art-bb2a75603b4942d9af636371aa513065 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T20:28:27Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-bb2a75603b4942d9af636371aa5130652023-11-23T23:29:38ZengMDPI AGNanomaterials2079-49912022-02-0112575310.3390/nano12050753Sonochemical Preparation of a Magnet-Responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 Adsorbent for Efficient Cu<sup>2+</sup> RemovalTrung Tuyen Bui0Duc Cuong Nguyen1Si Hiep Hua2Hyungphil Chun3Yong Shin Kim4Institute of Natural Science and Technology, Hanyang University, Ansan 15588, KoreaDepartment of Bionano Engineering, Hanyang University, Ansan 15588, KoreaGraduate School of Applied Chemistry, Hanyang University, Ansan 15588, KoreaGraduate School of Applied Chemistry, Hanyang University, Ansan 15588, KoreaGraduate School of Applied Chemistry, Hanyang University, Ansan 15588, KoreaThis work presents a novel approach to synthesizing magnetic core-shell nanocomposites, consisting of magnetic nanoparticles and a metal-organic framework, for environmental applications. The synthesis is based on the encapsulation of magnetic Fe<sub>3</sub>O<sub>4</sub> nanoparticles with microporous zeolitic imidazolate framework-8 (ZIF-8) nanocrystals via ultrasonic activation under a continuous supply of precursor solutions. This sonochemical approach is proven to be a fast, cost-effective, and controllable route for the preparation of magnet-responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 nanoparticles with a core-shell structure. The functional nanomaterial possesses a high content of ZIF-8 and combined micro/mesoporosity, and thus can be used as adsorbents that can be easily separated using a magnet. In particular, the sonochemically prepared Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 exhibits significant adsorption performance for the removal of copper ions from water: a short adsorption time (10 min), high maximum uptake capacity (345 mg g<sup>−1</sup>), and excellent removal efficiency (95.3%). These performances are interpreted and discussed based on the materials characteristics of Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 established by microscopy, gas sorption, X-ray diffraction, and thermal analysis.https://www.mdpi.com/2079-4991/12/5/753sonochemistryFe<sub>3</sub>O<sub>4</sub> nanoparticle-embedded ZIF-8magnetic compositecopper adsorption |
| spellingShingle | Trung Tuyen Bui Duc Cuong Nguyen Si Hiep Hua Hyungphil Chun Yong Shin Kim Sonochemical Preparation of a Magnet-Responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 Adsorbent for Efficient Cu<sup>2+</sup> Removal Nanomaterials sonochemistry Fe<sub>3</sub>O<sub>4</sub> nanoparticle-embedded ZIF-8 magnetic composite copper adsorption |
| title | Sonochemical Preparation of a Magnet-Responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 Adsorbent for Efficient Cu<sup>2+</sup> Removal |
| title_full | Sonochemical Preparation of a Magnet-Responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 Adsorbent for Efficient Cu<sup>2+</sup> Removal |
| title_fullStr | Sonochemical Preparation of a Magnet-Responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 Adsorbent for Efficient Cu<sup>2+</sup> Removal |
| title_full_unstemmed | Sonochemical Preparation of a Magnet-Responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 Adsorbent for Efficient Cu<sup>2+</sup> Removal |
| title_short | Sonochemical Preparation of a Magnet-Responsive Fe<sub>3</sub>O<sub>4</sub>@ZIF-8 Adsorbent for Efficient Cu<sup>2+</sup> Removal |
| title_sort | sonochemical preparation of a magnet responsive fe sub 3 sub o sub 4 sub zif 8 adsorbent for efficient cu sup 2 sup removal |
| topic | sonochemistry Fe<sub>3</sub>O<sub>4</sub> nanoparticle-embedded ZIF-8 magnetic composite copper adsorption |
| url | https://www.mdpi.com/2079-4991/12/5/753 |
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