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Xia C, Jin X, Parandoust A, Sheibani R, Khorsandi Z, Montazeri N, Wu Y, Van Le Q. Chitosan-supported metal nanocatalysts for the reduction of nitroaromatics. Int J Biol Macromol 2023; 239:124135. [PMID: 36965557 DOI: 10.1016/j.ijbiomac.2023.124135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/17/2023] [Accepted: 03/19/2023] [Indexed: 03/27/2023]
Abstract
The second most abundant natural polymer in the earth's crust is chitosan (CS). The unique physical, chemical, structural, and mechanical features of this natural polymer have led to its increased application in a variety of fields such as medicine, catalysis, removal of pollutants, etc. To eliminate various pollutants, it is preferable to employ natural compounds as their use aids the removal of contaminants from the environment. Consequently, employing CS to eliminate contaminants is a viable choice. For this aim, CS can be applied as a template and support for metal nanoparticles (MNPs) and prevent the accumulation of MNPs as well as a reducing and stabilizing agent for the fabrication of MNPs. Among the pollutants present in nature, nitro compounds are an important and wide category of biological pollutants. 4-Nitrophenol (4-NP) is one of the nitro pollutants. There are different ways for the removal of 4-NP, but the best and most effective method for this purpose is the application of a metallic catalyst and a reducing agent. In this review, we report the recent developments regarding CS-supported metallic (nano)catalysts for the reduction of nitroaromatics such as nitrophenols, nitroaniline compounds, nitrobenzene, etc. in the presence of reducing agents. The metals investigated in this study include Ag, Au, Ni, Cu, Ru, Pt, Pd, etc.
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Affiliation(s)
- Changlei Xia
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Xin Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Ahmad Parandoust
- Farabi Educational Institute, Moghadas Ardebili St., Mahmoodiye St., No 13, 1986743413 Tehran, Iran
| | - Reza Sheibani
- Amirkabir University of Technology-Mahshahr Campus, University St., Nahiyeh san'ati, Mahshahr, Khouzestan, Iran.
| | - Zahra Khorsandi
- Department of Chemistry, Isfahan University of Technology, Isfahan 415683111, Iran
| | - Narjes Montazeri
- Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Yingji Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Quyet Van Le
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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Zedan AF, AlJaber AS, El-Shall MS. Facile Microwave Synthesis of Hierarchical Porous Copper Oxide and Its Catalytic Activity and Kinetics for Carbon Monoxide Oxidation. ACS OMEGA 2022; 7:44021-44032. [PMID: 36506176 PMCID: PMC9730479 DOI: 10.1021/acsomega.2c05399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/09/2022] [Indexed: 06/17/2023]
Abstract
The synthesis of copper oxide (CuO)-based nanomaterials has received a tremendous deal of interest in recent years. Particularly, the design and development of novel CuO structures with improved physical and chemical properties have attracted immense attention, especially for catalysis applications. We report on a rational, rapid, and surfactant-free microwave synthesis (MWS) of hierarchical porous copper oxide (HP-CuO) with a three-dimensional (3D) sponge-like topology using an MWS reactor. The activity of the microwave (MW)-synthesized HP-CuO catalysts for carbon monoxide (CO) oxidation was studied and compared to CuO prepared by the conventional heating method (CHM). Results showed that HP-CuO catalysts prepared by MWS for 10 and 30 min surpassed the CuO catalyst prepared by CHM, exhibiting T 80 of 98 and 115 °C, respectively, as compared to 185 °C of CuO prepared by CHM (T80 is the temperature corresponding to 80% CO conversion). In addition, the MW-synthesized HP-CuO catalysts outperformed the CHM-synthesized CuO, achieving a 100% CO conversion at 150 °C compared to 240 °C in the case of CuO prepared by CHM. Interestingly, the HP-CuO catalyst expressed workable CO conversion kinetics with a reaction rate of c.a.35 μmol s-1 g-1 at 150 °C and apparent activation energy (E a) of 82 kJ mol-1. The HP-CuO catalyst showed excellent cycling and long-term stabilities for CO oxidation up to 4 cycles and 72 h on the stream, respectively. The enhanced catalytic activity and stability of the HP-CuO catalyst appear to result from the unique topological and structural features of HP-CuO, which were revealed by SEM, XRD, Raman, BET, TGA, XPS, and TPR techniques.
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Affiliation(s)
- Abdallah F. Zedan
- National
Institute of Laser Enhanced Sciences, Cairo
University, Giza12613, Egypt
- Department
of Chemistry, Virginia Commonwealth University, Richmond, Virginia23284, United States
| | - Amina S. AlJaber
- Department
of Chemistry and Earth Sciences, Qatar University, Doha2713, Qatar
| | - M. Samy El-Shall
- Department
of Chemistry, Virginia Commonwealth University, Richmond, Virginia23284, United States
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Hasan K, Joseph RG, Patole SP, Al-Qawasmeh RA. Development of magnetic Fe3O4-chitosan immobilized Cu(II) Schiff base catalyst: An efficient and reusable catalyst for microwave assisted one-pot synthesis of propargylamines via A3 coupling. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Qiu Y, Qu K. Binary organic-inorganic nanocomposite of polyaniline-MnO 2 for non-enzymatic electrochemical detection of environmental pollutant nitrite. ENVIRONMENTAL RESEARCH 2022; 214:114066. [PMID: 35963318 DOI: 10.1016/j.envres.2022.114066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/21/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Due to wide usage as nitrogen fertilizer in agriculture and food additive in industry, nitrite, as one of inorganic environmental pollutants, could cause detrimental effects to the ecological environment. Therefore, accurate, sensitive and rapid detection of nitrite is necessary. In this work, binary hybrid polyaniline-MnO2 organic-inorganic nanocomposite is prepared chemically and characterized via X-ray diffraction spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Polyaniline-MnO2 organic-inorganic nanocomposite serves as excellent electrode modifier for electrochemical sensing of nitrite by two modes of cyclic voltammetry and chronoamperometry, achieving broad linear ranges and low limits of detection for both methods. Moreover, the organic-inorganic nanocomposite displays satisfactory sensing performance in real water sample analysis. Amine and imino groups of polyaniline contribute to the better adsorption behavior of nitrite onto the nanocomposite, which improves the nanocomposite's sensing performance. In summary, the synergistic effects between polyaniline and MnO2 is taken advantaged in the nanocomposite for effective electrochemical sensor development.
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Affiliation(s)
- Yuhang Qiu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, PR China
| | - Ke Qu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, PR China.
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Hasan K, Joseph RG, Patole SP. Copper Pyrrole‐imine Incorporated Fe
3
O
4
‐Nanocomposite: A Magnetically Separable and Reusable Catalyst for the Oxidative Amination of Aryl Aldehydes. ChemistrySelect 2022. [DOI: 10.1002/slct.202201840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kamrul Hasan
- Pure and Applied Chemistry Group Department of Chemistry College of Sciences University of Sharjah, P.O. Box 27272 Sharjah United Arab Emirates
| | - Reshma G. Joseph
- Pure and Applied Chemistry Group Department of Chemistry College of Sciences University of Sharjah, P.O. Box 27272 Sharjah United Arab Emirates
| | - Shashikant P. Patole
- Department of Physics Khalifa University of Science and Technology, P.O. Box 127788 Abu Dhabi United Arab Emirates
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Magnetically recyclable nanocomposites via lanthanide-based MOFs grown on natural sea sponge: Screening hydrogenation of nitrophenol to aminophenol. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Jonny J, Putranto TA, Sitepu EC, Irfon R. Dendritic cell vaccine as a potential strategy to end the COVID-19 pandemic. Why should it be Ex Vivo? Expert Rev Vaccines 2022; 21:1111-1120. [PMID: 35593184 DOI: 10.1080/14760584.2022.2080658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Developing a safe and efficacious vaccine that can induce broad and long-term immunity for SARS-CoV-2 infection is the most critical research to date. As the most potent APCs, dendritic cells (DCs) can induce a robust T cell immunity. In addition, DCs also play an essential role in COVID-19 pathogenesis, making them a potential vaccination target. However, the DCs-based vaccine with ex vivo loading has not yet been explored for COVID-19. AREAS COVERED This review aims to provide the rationale for developing a DCs-based vaccine with ex vivo loading of SARS-CoV-2 antigen. Here, we discuss the role of DCs in immunity and the effect of SARS-CoV-2 infection on DCs. Then, we propose the mechanism of the DCs-based vaccine in inducing immunity and highlight the benefits of ex vivo loading of antigen. EXPERT OPINION We make the case that an ex vivo loaded DC-based vaccination is appropriate for COVID-19 prevention.
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Affiliation(s)
- Jonny Jonny
- Cellcure Center, Gatot Soebroto Central Army Hospital, Jakarta, Indonesia
| | | | | | - Raoulian Irfon
- Cellcure Center, Gatot Soebroto Central Army Hospital, Jakarta, Indonesia
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