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Paul A, Liu P, G Mahmoud A, Rakocevic L, C B A Alegria E, Khan RA, C Guedes da Silva MF, Wang Z, J L Pombeiro A. Highly Efficient Cu(II) Coordination Polymer Catalyst for the Conversion of Hazardous Volatile Organic Compounds. CHEMOSPHERE 2024:143001. [PMID: 39121961 DOI: 10.1016/j.chemosphere.2024.143001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/21/2024] [Accepted: 07/31/2024] [Indexed: 08/12/2024]
Abstract
Three novel coordination polymers (CPs), namely [Cu(μ-1κO,2κN-L)2]n (1), [Zn(μ-1κO,2κN-L)2(H2O)2]n (2) and [Cd(μ-1κOO',2κN-L)2]n (3) [where HL = 4-(pyrimidin-5-ylcarbamoyl)benzoic acid], were synthesized and characterized by elemental analysis, ATR-IR, TGA, XPS and single-crystal X-ray diffraction. Despite having the same organic ligand, the various metal cations had an impact in the subsequent frameworks. Hirshfeld surface analysis was performed to investigate the intermolecular interactions and to examine the stability of the crystal structures of the three polymers. Their catalytic performances were screened for the peroxidative oxidation of Volatile Organic Compounds (VOCs), with toluene and p-xylene selected as model substrates. Tert-butyl hydroperoxide (t-BuOOH or TBHP) (aq. 70 %) was employed as the oxidant. The catalytic oxidation of toluene yielded benzyl alcohol, benzaldehyde and benzoic acid. The copper CP 1 exhibited the highest total yield for toluene oxidation, reaching approximately 36% in an aqueous medium. For p-xylene oxidation, tolualdehyde, methylbenzyl alcohol, and toluic acid were produced as the primary products, accompanied by minor ones. The experiments were conducted under diverse conditions, manipulating key parameters such as the choice of solvent (water or acetonitrile), type of oxidant (t-BuOOH or H2O2), the concentration of the oxidant and reaction temperature. In the presence of catalyst 1, a maximum total yield of ca. 80% was achieved for p-xylene oxidation.
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Affiliation(s)
- Anup Paul
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa. Portugal.
| | - Peixi Liu
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa. Portugal; State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, P.R. China
| | - Abdallah G Mahmoud
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa. Portugal; Department of Chemistry, Faculty of Science, Helwan University, Ain Helwan, Cairo 11795, Egypt
| | - Lazar Rakocevic
- Vinča Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11000 Belgrade, Serbia
| | - Elisabete C B A Alegria
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa. Portugal; Departamento de Engenharia Química, ISEL, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Portugal.
| | - Rais Ahmad Khan
- Department of Chemistry, King Saud University, Riyadh-11451, KSA
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa. Portugal; Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa. Portugal
| | - Zhihua Wang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027, Hangzhou, P.R. China
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa. Portugal
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Lapa HM, Martins LMDRS. Toluene Oxidation: CO 2 vs Benzaldehyde: Current Status and Future Perspectives. ACS OMEGA 2024; 9:26780-26804. [PMID: 38947821 PMCID: PMC11209706 DOI: 10.1021/acsomega.4c01023] [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: 01/31/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 07/02/2024]
Abstract
Toluene is a common and significant volatile organic compound (VOC). Although it finds extensive application in various industrial processes (chemical manufacturing, paint and adhesive production, and as a solvent), it creates a huge environmental impact when emitted freely into the atmosphere. Two solutions were found to mitigate the emission of this pollutant: the total oxidation to CO2 and H2O and the selective oxidation into benzaldehyde. This review discusses the two main alternatives for tackling this problem: converting the toluene into carbon dioxide by total oxidation or into benzaldehyde by selective oxidation. It presents new catalytic advances, new trends, and the advantages and disadvantages of both methods.
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Affiliation(s)
- Hugo M. Lapa
- Centro
de Química Estrutural, Institute of Molecular Sciences, Instituto
Superior Técnico, Universidade de
Lisboa, Lisboa 1049-001, Portugal
- Departamento
de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Lisboa 1049-001, Portugal
- Departamento
de Engenharia Química, Instituto Superior de Engenharia de
Lisboa, Instituto Politécnico de
Lisboa, 1059-007 Lisboa, Portugal
| | - Luísa M. D. R. S. Martins
- Centro
de Química Estrutural, Institute of Molecular Sciences, Instituto
Superior Técnico, Universidade de
Lisboa, Lisboa 1049-001, Portugal
- Departamento
de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Lisboa 1049-001, Portugal
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How the Content of Protons and Vanadium Affects the Activity of H3+nPMo12-nVnO40 (n = 0, 1, 2, or 3) Catalysts on the Oxidative Esterification of Benzaldehyde with Hydrogen Peroxide. Catal Letters 2022. [DOI: 10.1007/s10562-022-04132-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Sutradhar M, Alegria EC, Barman TR, Lapa HM, Guedes da Silva MFC, Pombeiro AJ. Catalytic oxidation of a model volatile organic compound (toluene) with tetranuclear Cu(II) complexes. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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