One-Pot Synthesis of Magnetic Core-Shell Fe<sub>3</sub>O<sub>4</sub>@C Nanospheres with Pt Nanoparticle Immobilization for Catalytic Hydrogenation of Nitroarenes
Magnetic materials with intriguing structural and functional modifications demonstrate broad application potential in various fields, including drug delivery, absorption, extraction, separation, and catalysis. In particular, the catalytic hydrogenation of functionalized organic nitro compounds repre...
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2025-05-01
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| author | Jun Qiao Yang Gao Kai Zheng Chao Shen Aiquan Jia Qianfeng Zhang |
| author_facet | Jun Qiao Yang Gao Kai Zheng Chao Shen Aiquan Jia Qianfeng Zhang |
| author_sort | Jun Qiao |
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| description | Magnetic materials with intriguing structural and functional modifications demonstrate broad application potential in various fields, including drug delivery, absorption, extraction, separation, and catalysis. In particular, the catalytic hydrogenation of functionalized organic nitro compounds represents a significant research focus in contemporary catalysis studies. A facile synthesis of Fe<sub>3</sub>O<sub>4</sub>@C–Pt core-shell nanocatalysts was developed in this work through a sequential process involving (1) one-pot hydrothermal synthesis followed by N<sub>2</sub>-annealing to obtain the Fe<sub>3</sub>O<sub>4</sub>@C core and (2) subsequent solvothermal deposition of platinum nanoparticles. Comprehensive characterization was performed using FT-IR, XRD, Raman spectroscopy, TEM, XPS, BET surface area analysis, TGA, and VSM techniques. The resulting magnetic nanocatalysts exhibited uniformly dispersed Pt nanoparticles and demonstrated exceptional catalytic performance in nitroarene hydrogenation reactions. Remarkably, the system showed excellent functional group tolerance across all 20 substituted nitroarenes, consistently yielding corresponding aromatic amine products with >93% conversion efficiency. Furthermore, the magnetic responsiveness of Fe<sub>3</sub>O<sub>4</sub>@C–Pt enabled convenient catalyst recovery through simple magnetic separation, with maintained catalytic activity over 10 consecutive reuse cycles without significant performance degradation. |
| format | Article |
| id | doaj-art-18791f3211d549e5a1b4fc3146e4eb13 |
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| language | English |
| publishDate | 2025-05-01 |
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| spelling | doaj-art-18791f3211d549e5a1b4fc3146e4eb132025-08-20T01:56:29ZengMDPI AGApplied Sciences2076-34172025-05-011510577310.3390/app15105773One-Pot Synthesis of Magnetic Core-Shell Fe<sub>3</sub>O<sub>4</sub>@C Nanospheres with Pt Nanoparticle Immobilization for Catalytic Hydrogenation of NitroarenesJun Qiao0Yang Gao1Kai Zheng2Chao Shen3Aiquan Jia4Qianfeng Zhang5School of Materials Science and Engineering, Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan 243002, ChinaSchool of Materials Science and Engineering, Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan 243002, ChinaCollege of Petroleum Chemical Industry, Changzhou University, Changzhou 213164, ChinaCollege of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, ChinaSchool of Materials Science and Engineering, Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan 243002, ChinaSchool of Materials Science and Engineering, Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan 243002, ChinaMagnetic materials with intriguing structural and functional modifications demonstrate broad application potential in various fields, including drug delivery, absorption, extraction, separation, and catalysis. In particular, the catalytic hydrogenation of functionalized organic nitro compounds represents a significant research focus in contemporary catalysis studies. A facile synthesis of Fe<sub>3</sub>O<sub>4</sub>@C–Pt core-shell nanocatalysts was developed in this work through a sequential process involving (1) one-pot hydrothermal synthesis followed by N<sub>2</sub>-annealing to obtain the Fe<sub>3</sub>O<sub>4</sub>@C core and (2) subsequent solvothermal deposition of platinum nanoparticles. Comprehensive characterization was performed using FT-IR, XRD, Raman spectroscopy, TEM, XPS, BET surface area analysis, TGA, and VSM techniques. The resulting magnetic nanocatalysts exhibited uniformly dispersed Pt nanoparticles and demonstrated exceptional catalytic performance in nitroarene hydrogenation reactions. Remarkably, the system showed excellent functional group tolerance across all 20 substituted nitroarenes, consistently yielding corresponding aromatic amine products with >93% conversion efficiency. Furthermore, the magnetic responsiveness of Fe<sub>3</sub>O<sub>4</sub>@C–Pt enabled convenient catalyst recovery through simple magnetic separation, with maintained catalytic activity over 10 consecutive reuse cycles without significant performance degradation.https://www.mdpi.com/2076-3417/15/10/5773Fe<sub>3</sub>O<sub>4</sub>@Ccore-shell nanospherePt nanoparticlescatalytic hydrogenation |
| spellingShingle | Jun Qiao Yang Gao Kai Zheng Chao Shen Aiquan Jia Qianfeng Zhang One-Pot Synthesis of Magnetic Core-Shell Fe<sub>3</sub>O<sub>4</sub>@C Nanospheres with Pt Nanoparticle Immobilization for Catalytic Hydrogenation of Nitroarenes Applied Sciences Fe<sub>3</sub>O<sub>4</sub>@C core-shell nanosphere Pt nanoparticles catalytic hydrogenation |
| title | One-Pot Synthesis of Magnetic Core-Shell Fe<sub>3</sub>O<sub>4</sub>@C Nanospheres with Pt Nanoparticle Immobilization for Catalytic Hydrogenation of Nitroarenes |
| title_full | One-Pot Synthesis of Magnetic Core-Shell Fe<sub>3</sub>O<sub>4</sub>@C Nanospheres with Pt Nanoparticle Immobilization for Catalytic Hydrogenation of Nitroarenes |
| title_fullStr | One-Pot Synthesis of Magnetic Core-Shell Fe<sub>3</sub>O<sub>4</sub>@C Nanospheres with Pt Nanoparticle Immobilization for Catalytic Hydrogenation of Nitroarenes |
| title_full_unstemmed | One-Pot Synthesis of Magnetic Core-Shell Fe<sub>3</sub>O<sub>4</sub>@C Nanospheres with Pt Nanoparticle Immobilization for Catalytic Hydrogenation of Nitroarenes |
| title_short | One-Pot Synthesis of Magnetic Core-Shell Fe<sub>3</sub>O<sub>4</sub>@C Nanospheres with Pt Nanoparticle Immobilization for Catalytic Hydrogenation of Nitroarenes |
| title_sort | one pot synthesis of magnetic core shell fe sub 3 sub o sub 4 sub c nanospheres with pt nanoparticle immobilization for catalytic hydrogenation of nitroarenes |
| topic | Fe<sub>3</sub>O<sub>4</sub>@C core-shell nanosphere Pt nanoparticles catalytic hydrogenation |
| url | https://www.mdpi.com/2076-3417/15/10/5773 |
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