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Sun J, Liu H, Xu S, Zhu Y, Xia C, Gan L, Zhang R, Zhang C, Miao Z. A fabrication strategy for porous carbon spheres based on cross‐linked chitosan/poly(γ‐glutamic acid) colloidal particles. J Appl Polym Sci 2022. [DOI: 10.1002/app.53513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jingru Sun
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu China
| | - Huan Liu
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu China
| | | | - Ying Zhu
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu China
| | - Chunmiao Xia
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu China
| | - Lei Gan
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu China
| | - Rongli Zhang
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu China
| | - Cuige Zhang
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu China
| | - Zongcheng Miao
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering Anhui Polytechnic University Wuhu China
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Soğuksu AK, Kerli S, Kavgacı M, Gündeş A. Electrochemical Properties, Antimicrobial Activity and Photocatalytic Performance of Cerium-Iron Oxide Nanoparticles. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422010228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wang X, Zheng J, Li P, Yin XB, Wang S, Zhang B, Xu J, Zhang M. Facile strategy for the synthesis of silver nanoparticles on magnetic Fe 3O 4@C core-shell nanocomposites and their application in catalytic reduction. Dalton Trans 2022; 51:3170-3179. [PMID: 35113099 DOI: 10.1039/d1dt03863j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The integration of noble metal nanoparticles (NPs) on magnetic hollow structures is of particular importance for high catalytic activity, while the magnetic property is useful for the recovery of the composites. Herein, we prepared Ag NP decorated Fe3O4@C hollow magnetic microtubes by a facile and controllable approach. To this end, tannic acid-ferric ion (TA-Fe) first polymerized in situ on the MoO3@FeOOH microrods and served as a reducing/stabilizing agent to integrate Ag NPs with high coverage. Moreover, no extra reductant was required owing to the reducibility of TA for the formation of FeOOH@TA-Fe/Ag microtubes. After thermal treatment under an N2 atmosphere, hollow Fe3O4@C-Ag microtubes are obtained with a high surface area and excellent magnetism. Remarkable catalytic activity was achieved towards the reduction of 4-nitrophenol (4-NP) owing to the high coverage of Ag NPs on the tube-like structure, while the composite was easily collected with an external magnet. The integration of Ag NPs and the magnetic hollow structure provides a great platform for designing hybrid catalysts with high efficiency and recoverability.
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Affiliation(s)
- Xin Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Jing Zheng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Peiyu Li
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Xue-Bo Yin
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Siyao Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Baishun Zhang
- Anhui Institute of Public Security Education, Hefei, Anhui 230088, PR China
| | - Jingli Xu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Min Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
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Ionic Porous Aromatic Framework as a Self-Degraded Template for the Synthesis of a Magnetic γ-Fe 2O 3/WO 3·0.5H 2O Hybrid Nanostructure with Enhanced Photocatalytic Property. Molecules 2021; 26:molecules26226857. [PMID: 34833949 PMCID: PMC8617793 DOI: 10.3390/molecules26226857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 11/24/2022] Open
Abstract
An ionic porous aromatic framework is developed as a self-degraded template to synthesize the magnetic heterostructure of γ-Fe2O3/WO3·0.5H2O. The Fe3O4 polyhedron was obtained with the two-phase method first and then reacted with sodium tungstate to form the γ-Fe2O3/WO3·0.5H2O hybrid nanostructure. Under the induction effect of the ionic porous network, the Fe3O4 phase transformed to the γ-Fe2O3 state and complexed with WO3·0.5H2O to form the n-n heterostructure with the n-type WO3·0.5H2O on the surface of n-type γ-Fe2O3. Based on a UV-Visible analysis, the magnetic photocatalyst was shown to have a suitable band gap for the catalytic degradation of organic pollutants. Under irradiation, the resulting γ-Fe2O3/WO3·0.5H2O sample exhibited a removal efficiency of 95% for RhB in 100 min. The charge transfer mechanism was also studied. After the degradation process, the dispersed powder can be easily separated from the suspension by applying an external magnetic field. The catalytic activity displayed no significant decrease after five recycles. The results present new insights for preparing a hybrid nanostructure photocatalyst and its potential application in harmful pollutant degradation.
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Shoorangiz M, Shariatifard L, Roshan H, Mirzaei A. Selective ethanol sensor based on α-Fe2O3 nanoparticles. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chen Y, Cheng H, Wang W, Jin Z, Liu Q, Yang H, Cao Y, Li W, Fakhri A, Gupta VK. Preparation of carbon dots-hematite quantum dots-loaded hydroxypropyl cellulose-chitosan nanocomposites for drug delivery, sunlight catalytic and antimicrobial application. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 219:112201. [PMID: 33962112 DOI: 10.1016/j.jphotobiol.2021.112201] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 04/18/2021] [Accepted: 04/22/2021] [Indexed: 12/28/2022]
Abstract
In this project, we studied the thermal and chemical method for the synthesis of carbon dots (CDs)/Hematite (α-Fe2O3) quantum dots and the preparation of hydroxypropyl cellulose cross-linked chitosan (HPCCS) and ulvan (UN) was performed by chemical method. Carbon dots/α-Fe2O3 quantum dots with size distribution of 3-5 nm were completely encapsulated in the HPCCS/UN NPs to obtain composites, which indicated unique characteristics with respect to antimicrobial, pH-responsive and optical properties. The CDs-HQDs/HPCCS/UN nanocomposites exhibited a single-excitation (440 nm), dual-emission fluorescence property (505 nm and 628 nm for green and red light from CDs-HQDs and HPCCS/UN NPs). The nanocomposites played as a pH-responsive drug delivery process to release ulvan at a fast rate in pH 7.4 buffer solution but at a slow rate in low pH solutions. The CDs-HQDs/HPCCS/UN nanocomposites gained the highest photocatalytic activity for degrading 4-chlorophenol (4-CPh) as a pollutant (>98% during 70 min under sunlight irradiation). Moreover, the nanocomposites indicated great inhibitory influences towards bacterial and fungal.
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Affiliation(s)
- Yanuo Chen
- Polytechnic Institute of Qianjiang College, Hangzhou Normal University, Hangzhou, Zhejiang 310018, China
| | - Haixiang Cheng
- School of Chemical and Material Engineering, Quzhou College, Quzhou, Zhejiang 324000, China
| | - Weina Wang
- Anji Branch of Huzhou Ecological & Environment Bureau, Huzhou, Zhejiang 313300, China
| | - Zhe Jin
- Anji Branch of Huzhou Ecological & Environment Bureau, Huzhou, Zhejiang 313300, China
| | - Qi Liu
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Huayun Yang
- Polytechnic Institute of Qianjiang College, Hangzhou Normal University, Hangzhou, Zhejiang 310018, China
| | - Yong Cao
- Polytechnic Institute of Qianjiang College, Hangzhou Normal University, Hangzhou, Zhejiang 310018, China.
| | - Weidong Li
- Polytechnic Institute of Qianjiang College, Hangzhou Normal University, Hangzhou, Zhejiang 310018, China.
| | - Ali Fakhri
- Department of Chemistry, Nano Smart Science Institute (NSSI), Tehran, Iran; Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Vinod Kumar Gupta
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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Qiang T, Chen L, Qin X. Biomass-based 0D/3D N-CQD/MIL-53(Fe) photocatalyst for the simultaneous remediation of multiple hazardous pollutants in sewage. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00747e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The implementation of N-CQD/MIL-53(Fe) photocatalyst in the area of photocatalytic multi-component sewage remediation.
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Affiliation(s)
- Taotao Qiang
- College of Bioresources and Materials Engineering
- Shaanxi University of Science & Technology
- Xi'an
- P.R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education
| | - Lu Chen
- College of Bioresources and Materials Engineering
- Shaanxi University of Science & Technology
- Xi'an
- P.R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education
| | - Xiangtao Qin
- College of Bioresources and Materials Engineering
- Shaanxi University of Science & Technology
- Xi'an
- P.R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education
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Righi G, Magri R. Surface reducibility, reactivity, and stability induced by noble metal modifications on the γ-Fe 2O 3maghemite (001) surfaces. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:425004. [PMID: 32615542 DOI: 10.1088/1361-648x/aba21c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
In these last years large research efforts have been devoted to the synthesis and investigation of reducible metal oxide surfaces modified with metal atoms and nanoparticles for improving their performance in a number of advanced applications. Among reducible metal oxides, iron oxides have the advantage to be made up from two of the most common elements on Earth. In this paper we analyze the structural, electronic, and magnetic consequences of the insertion of isolated noble metal atoms (Cu, Ag, Au) on theγ-Fe2O3(001) surface. We have considered many different configurations for the single atoms: adsorbed, substitutional to iron atoms, or to oxygen atoms, and, using first principles calculations, we have studied how the presence of the noble metal atoms on the surface influences the surface stability, its reducibility, and, therefore, its catalytic activity, and how these properties depend on the kind of noble metal atom and its position. Our results show that noble metal atoms adsorbed on the surface facilitate the adsorption of CO molecules, and, among them, Cu atoms are those that bind best to the surface also providing the strongest adsorption energy for the CO molecule. At ambient temperature and pressure the noble metal atoms prefer to substitute the iron atoms than to just adsorb on the surface, but for Ag atoms the adsorption and substitutional energies are very close. The surfaces with Ag in place of Fe are the most reducible and reactive for exchange of oxygen atoms. Finally, Au is the best noble metal for oxygen substitution. Our results provide useful insights for the researchers designing and synthesizing new noble metal-iron oxides nanostructures for applications in biology, medicine, catalysis, and chemical analysis.
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Affiliation(s)
- Giulia Righi
- CNR-S3 Institute of Nanoscience, via Campi 213/A, 41100 Modena, Italy
- Department of Physics, Informatics, and Mathematics of the University of Modena and Reggio-Emilia, Italy
| | - Rita Magri
- CNR-S3 Institute of Nanoscience, via Campi 213/A, 41100 Modena, Italy
- Department of Physics, Informatics, and Mathematics of the University of Modena and Reggio-Emilia, Italy
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