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Sidorowicz A, Yigit N, Wicht T, Stöger-Pollach M, Concas A, Orrù R, Cao G, Rupprechter G. Microalgae-derived Co 3O 4 nanomaterials for catalytic CO oxidation. RSC Adv 2024; 14:4575-4586. [PMID: 38318608 PMCID: PMC10839636 DOI: 10.1039/d4ra00343h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 01/30/2024] [Indexed: 02/07/2024] Open
Abstract
Efficient carbon monoxide oxidation is important to reduce its impacts on both human health and the environment. Following a sustainable synthesis route toward new catalysts, nanosized Co3O4 was synthesized based on extracts of microalgae: Spirulina platensis, Chlorella vulgaris, and Haematococcus pluvialis. Using the metabolites in the extract and applying different calcination temperatures (450, 650, 800 °C) led to Co3O4 catalysts with distinctly different properties. The obtained Co3O4 nanomaterials exhibited octahedral, nanosheet, and spherical morphologies with structural defects and surface segregation of phosphorous and potassium, originating from the extracts. The presence of P and K in the oxide nanostructures significantly improved their catalytic CO oxidation activity. When normalized by the specific surface area, the microalgae-derived catalysts exceeded a commercial benchmark catalyst. In situ studies revealed differences in oxygen mobility and carbonate formation during the reaction. The obtained insights may facilitate the development of new synthesis strategies for manufacturing highly active Co3O4 nanocatalysts.
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Affiliation(s)
- Agnieszka Sidorowicz
- Interdepartmental Centre of Environmental Engineering and Sciences, University of Cagliari 09123 Cagliari Italy
| | - Nevzat Yigit
- Institute of Materials Chemistry, TU Wien Getreidemarkt 9/BC 1060 Vienna Austria
| | - Thomas Wicht
- Institute of Materials Chemistry, TU Wien Getreidemarkt 9/BC 1060 Vienna Austria
| | - Michael Stöger-Pollach
- University Service Center for Transmission Electron Microscopy, TU Wien Wiedner Hauptstr. 8-10 1040 Vienna Austria
| | - Alessandro Concas
- Interdepartmental Centre of Environmental Engineering and Sciences, University of Cagliari 09123 Cagliari Italy
| | - Roberto Orrù
- Interdepartmental Centre of Environmental Engineering and Sciences, University of Cagliari 09123 Cagliari Italy
| | - Giacomo Cao
- Interdepartmental Centre of Environmental Engineering and Sciences, University of Cagliari 09123 Cagliari Italy
| | - Günther Rupprechter
- Institute of Materials Chemistry, TU Wien Getreidemarkt 9/BC 1060 Vienna Austria
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Fang S, Sun Y, Xu J, Zhang T, Wu Z, Li J, Gao E, Wang W, Zhu J, Dai L, Liu W, Zhang B, Zhang J, Yao S. Revealing the intrinsic nature of Ni-, Mn-, and Y-doped CeO 2 catalysts with positive, additive, and negative effects on CO oxidation using operando DRIFTS-MS. Dalton Trans 2023; 52:16911-16919. [PMID: 37927054 DOI: 10.1039/d3dt03001f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
The catalytic activity of a transition metal (host) oxide can be influenced by doping with a second cation (dopant), but the key factors dominating the activity of the doped catalyst are still controversial. Herein, CeO2 doped with Ni, Mn, and Y catalysts prepared using aerosol pyrolysis were used to demonstrate the positive, negative, and additive effects on CO oxidation as a model reaction. Various characterization results indicated that Ni, Mn, and Y had been successfully doped into the CeO2 lattice. The catalytic activities of each catalyst for CO conversion were in the order of Ni-CeO2 > Mn-CeO2 > CeO2 > Y-CeO2. Operando DRIFTS-MS and various characterization methods were applied to reveal the intrinsic nature of the doping effects. The accumulation rate of the surface bidentate carbonates determined the CO oxidation. A definition to evaluate the doping effect was proposed, which is anticipated to be useful for developing a rational catalyst with a high CO oxidation activity. The CO oxidation reactivities displayed strong correlations with the surface factors obtained from operando DRIFTS-MS analysis and the structure factors from XPS and Raman analyses.
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Affiliation(s)
- Shiyu Fang
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
| | - Yan Sun
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
| | - Jiacheng Xu
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
- School of Material Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Tiantian Zhang
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
| | - Zuliang Wu
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
- Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry, Changzhou 213164, China
| | - Jing Li
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
- Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry, Changzhou 213164, China
| | - Erhao Gao
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
- Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry, Changzhou 213164, China
| | - Wei Wang
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
- Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry, Changzhou 213164, China
| | - Jiali Zhu
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
- Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry, Changzhou 213164, China
| | - Lianxin Dai
- Jiangxi Xintai Functional Materials Technology Co., Ltd., Ji'an 343100, China
| | - Weihua Liu
- Jiangxi Xintai Functional Materials Technology Co., Ltd., Ji'an 343100, China
| | - Buhe Zhang
- Jiangxi Xintai Functional Materials Technology Co., Ltd., Ji'an 343100, China
| | - Junwei Zhang
- Jiangxi Xintai Functional Materials Technology Co., Ltd., Ji'an 343100, China
| | - Shuiliang Yao
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
- School of Material Science and Engineering, Changzhou University, Changzhou 213164, China
- Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry, Changzhou 213164, China
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Xiao ZJ, Feng XC, Shi HT, Zhou BQ, Wang WQ, Ren NQ. Why the cooperation of radical and non-radical pathways in PMS system leads to a higher efficiency than a single pathway in tetracycline degradation. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127247. [PMID: 34879542 DOI: 10.1016/j.jhazmat.2021.127247] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
Current research focused on developing multiple active species in peroxymonosulfate (PMS) system to degrade contaminants, but deepening concern lacks over why cooperation of those active species facilitated a faster degradation. Here, we employed Co3O4, rGO and Co3O4@rGO composite to activate PMS for tetracycline (TC) degradation, and detected crucial factors toward highest performance of Co3O4@rGO/PMS system. Batch experiments exhibited a satisfactory TC degradation efficiency under Co3O4@rGO/PMS, complete degraded 50 mg/L TC within 20 min. Analytical tests discovered that radical active species generated by Co3O4/PMS and non-radical species by rGO/PMS were successfully co-existed in Co3O4@rGO/PMS system, significantly improving the performance of TC removal. Subsequently, a combination of density functional theory (DFT) calculation and intermediates analysis revealed that, in Co3O4@rGO/PMS system, the cooperation rather than independent effect of radical and non-radical active species expanded TC degradation pathways, enhancing the degradation performance. Furthermore, decent adaptability, stability, and recyclability toward affecting factors variation of Co3O4@rGO/PMS demonstrated it as a potent and economical system to degrade TC. Overall, this study developed a novel Co3O4@rGO/PMS system with a cooperative oxidation pathway for highly efficient TC removal, and managed to clarify why this oxidation pathway achieved high efficiency through a combination of theoretical and experimental method.
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Affiliation(s)
- Zi-Jie Xiao
- State Key Lab of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, PR China; School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China
| | - Xiao-Chi Feng
- State Key Lab of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, PR China; School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China.
| | - Hong-Tao Shi
- State Key Lab of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, PR China
| | - Bai-Qin Zhou
- State Key Lab of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, PR China
| | - Wen-Qian Wang
- State Key Lab of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, PR China
| | - Nan-Qi Ren
- State Key Lab of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, PR China; School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, Guangdong 518055, PR China
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Klotzsche M, Barreca D, Bigiani L, Seraglia R, Gasparotto A, Vanin L, Jandl C, Pöthig A, Roverso M, Bogialli S, Tabacchi G, Fois E, Callone E, Dirè S, Maccato C. Facile preparation of a cobalt diamine diketonate adduct as a potential vapor phase precursor for Co 3O 4films. Dalton Trans 2021; 50:10374-10385. [PMID: 34286774 DOI: 10.1039/d1dt01650d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Co3O4 thin films and nanosystems are implemented in a broad range of functional systems, including gas sensors, (photo)catalysts, and electrochemical devices for energy applications. In this regard, chemical vapor deposition (CVD) is a promising route for the fabrication of high-quality films in which the precursor choice plays a key role in the process development. In this work, a heteroleptic cobalt complex bearing fluorinated diketonate ligands along with a diamine moiety [Co(tfa)2·TMEDA; tfa = 1,1,1-trifluoro-2,4-pentanedionate and TMEDA = N,N,N',N'-tetramethylethylenediamine] is investigated as a potential Co molecular precursor for the CVD of Co3O4 systems. For the first time, the compound is characterized by crystal structure determination and comprehensive analytical studies, focusing also on its thermal properties and fragmentation patterns, important figures of merit for a CVD precursor. The outcomes of this investigation, accompanied by detailed theoretical studies, highlight its very favorable properties for CVD applications. In fact, growth experiments under oxygen atmospheres containing water vapor revealed the suitability of Co(tfa)2·TMEDA for the fabrication of high-quality, phase-pure Co3O4 thin films. The versatility of the proposed strategy in tailoring Co3O4 structural/morphological features highlights its potential to obtain multi-functional films with controllable properties for a variety of eventual technological end-uses.
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Affiliation(s)
- Max Klotzsche
- Department of Chemical Sciences - Padova University and INSTM, Via Marzolo 1, 35131 Padova, Italy
| | - Davide Barreca
- CNR-ICMATE and INSTM - Department of Chemical Sciences - Padova University, Via Marzolo 1, 35131 Padova, Italy.
| | - Lorenzo Bigiani
- Department of Chemical Sciences - Padova University and INSTM, Via Marzolo 1, 35131 Padova, Italy
| | - Roberta Seraglia
- CNR-ICMATE and INSTM - Department of Chemical Sciences - Padova University, Via Marzolo 1, 35131 Padova, Italy.
| | - Alberto Gasparotto
- Department of Chemical Sciences - Padova University and INSTM, Via Marzolo 1, 35131 Padova, Italy
| | - Laura Vanin
- Department of Chemical Sciences - Padova University and INSTM, Via Marzolo 1, 35131 Padova, Italy
| | - Christian Jandl
- Catalysis Research Center & Department of Chemistry - Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Alexander Pöthig
- Catalysis Research Center & Department of Chemistry - Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Marco Roverso
- Department of Chemical Sciences - Padova University and INSTM, Via Marzolo 1, 35131 Padova, Italy
| | - Sara Bogialli
- Department of Chemical Sciences - Padova University and INSTM, Via Marzolo 1, 35131 Padova, Italy and CNR-ICMATE and INSTM - Department of Chemical Sciences - Padova University, Via Marzolo 1, 35131 Padova, Italy.
| | - Gloria Tabacchi
- Department of Science and High Technology - Insubria University and INSTM, Via Valleggio 11, 22100 Como, Italy.
| | - Ettore Fois
- Department of Science and High Technology - Insubria University and INSTM, Via Valleggio 11, 22100 Como, Italy.
| | - Emanuela Callone
- "Klaus Müller" Magnetic Resonance Laboratory, Department of Industrial Engineering - Trento University, Via Sommarive 9, 38123 Trento, Italy
| | - Sandra Dirè
- "Klaus Müller" Magnetic Resonance Laboratory, Department of Industrial Engineering - Trento University, Via Sommarive 9, 38123 Trento, Italy
| | - Chiara Maccato
- Department of Chemical Sciences - Padova University and INSTM, Via Marzolo 1, 35131 Padova, Italy
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