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Bahmani M, Dashtian K, Mowla D, Esmaeilzadeh F, Ghaedi M. Robust charge carrier by Fe 3O 4 in Fe 3O 4/WO 3 core-shell photocatalyst loaded on UiO-66(Ti) for urea photo-oxidation. CHEMOSPHERE 2021; 267:129206. [PMID: 33321280 DOI: 10.1016/j.chemosphere.2020.129206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/22/2020] [Accepted: 12/03/2020] [Indexed: 06/12/2023]
Abstract
In this study, a facile four-step hydrothermal method was utilized to deposit a core-shell structure on UiO-66(Zr/Ti) nanoflake (NFs) as a visible-light-driven photocatalyst. The core was magnetic Fe3O4 which served as a charge carrier coated with WO3 shell. The as-prepared photocatalyst was characterized by XRD, VSM, BET, FTIR, FE-SEM, UV-Vis-DRS, and PL techniques which proved successful deposition of Fe3O4@WO3 core/shell particle on UiO-66(Zr/Ti)-NFs. The obtained photocatalyst was subsequently applied for urea photo-oxidation. This magnetically recoverable photocatalyst exhibited superior activity due to its desirable band alignment, high stability, and generation of the photo-induced charge carriers, as well as providing a high surface area with low mass transfer resistance. Fe3O4 core acted as charge-carrier to transport the photogenerated charges of UiO-66(Zr/Ti)-NFs (electron-donor) to WO3 charge-collectors for effective photoconversion. The central composite design was applied to design the experiments matrix in which flow rate, pH, irradiation time, catalyst mass, and initial urea concentration were considered as operational factors. The optimized condition was found by defining the desirability function. 90% degradation percentage was achieved at 550 mL/min solution flowrate, pH = 7, 120 min irradiation time, 0.22 g UiO-66(Zr)-NFs-Fe3O4@WO3, and 40 mg/L of the initial concentration of urea with the desirability value of 0.89. Such a superior photocatalytic activity of UiO-66-Fe3O4@WO3 can be ascribed to the reclamation of Fe3O4 as a low bandgap carrier, which accelerated the conveyance of electrons and followed surpassing charge separation. Our present findings open a new strategy to produce a wide range of core-shell heterogeneous catalysts to be applied in photoreactors scale-up.
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Affiliation(s)
- M Bahmani
- Chemical Engineering Department, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran; Environmental Research Center in Petroleum and Petrochemical Industries, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - K Dashtian
- Chemistry Department, Yasouj University, Yasouj, 75918-74831, Iran
| | - D Mowla
- Chemical Engineering Department, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran; Environmental Research Center in Petroleum and Petrochemical Industries, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran; Enhanced Oil and Gas Recovery Institute, Advanced Research Group for Gas Condensate Recovery, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, 71348-51154, Iran.
| | - F Esmaeilzadeh
- Chemical Engineering Department, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran; Environmental Research Center in Petroleum and Petrochemical Industries, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran; Enhanced Oil and Gas Recovery Institute, Advanced Research Group for Gas Condensate Recovery, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, 71348-51154, Iran
| | - M Ghaedi
- Chemistry Department, Yasouj University, Yasouj, 75918-74831, Iran
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Zhang Y, Ren W, Zhao Q, Lv K, Sun Y, Gao X, Wang F, Liu J. One-pot three-step enzymatic ROP in situ to form polycaprolactone from cyclohexanone: Optimizing and kinetic modeling. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Zhang Y, Sun Y, Tang H, Zhao Q, Ren W, Lv K, Yang F, Wang F, Liu J. One-Pot Enzymatic Synthesis of Enantiopure 1,3-Oxathiolanes Using Trichosporon laibachii Lipase and the Kinetic Model. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yuanyuan Zhang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, Ohio 43210,United States
| | - Yangjian Sun
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, Ohio 43210,United States
| | - Hui Tang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
| | - Qiuxiang Zhao
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
| | - Wenjie Ren
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
| | - Kuiying Lv
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
| | - Fengke Yang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
| | - Fanye Wang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
| | - Junhong Liu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Mail box 70, 53 Zhengzhou Road, Qingdao 266042, China
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Cao X, Liao L, Feng F. Purification and characterization of an extracellular lipase from Trichosporon sp. and its application in enrichment of omega-3 polyunsaturated fatty acids. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108692] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Chen Y, Zhang X, Zheng G, Gao S. Preparation of the enantiomerically enriched precursor of lamivudine (3TC™) via asymmetric catalysis mediated by Klebsiella oxytoca. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.03.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Zhang Y, Zhao Y, Gao X, Jiang W, Li Z, Yao Q, Yang F, Wang F, Liu J. Kinetic model of the enzymatic Michael addition for synthesis of mitomycin analogs catalyzed by immobilized lipase from T. laibacchii. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.01.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Zhang Y, Lu P, Sun Q, Li T, Zhao L, Gao X, Wang F, Liu J. Lipase-mediated direct in situ ring-opening polymerization of ε-caprolactone formed by a chemo-enzymatic method. J Biotechnol 2018; 281:74-80. [PMID: 29908204 DOI: 10.1016/j.jbiotec.2018.06.338] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 06/07/2018] [Accepted: 06/12/2018] [Indexed: 12/27/2022]
Abstract
A novel method to synthesize poly(ε-caprolactone) (PCL) through a three-step, lipase-mediated chemo-enzymatic reaction from cyclohexanone using an immobilized lipase from Trichosporon laibacchii (T. laibacchii) CBS5791 was developed. The immobilized preparation with 1280 U· g-1 used here was obtained by a method of purification and in situ immobilization where the crude intracellular lipase (cell homogenate) was subjected to partial purification by an aqueous two-phase system (ATPS) consisting of 12% (w/w) polyethylene glycol (PEG) 4000 and 13% (w/w) potassium phosphate (K2HPO4) and then in situ immobilization directly on diatomite from the top PEG-rich phase of ATPS. In this multi-step process, the ε-caprolactone (ε-CL) produced by lipase-mediated one-pot two-step chemo-enzymatic oxidation of cyclohexanone was directly subjected to in situ ring-opening polymerization (ROP) started by adding highly hydrophobic solvents. It is necessary to note that ε-CL synthesis and its subsequent ROP were catalyzed by the same lipase. The impact of various reaction parameters, e.g., solvent, cyclohexanone: hydrogen peroxide molar ratio, hydrogen peroxide forms and reaction temperature were investigated. Toluene was selected as a preferred solvent due to supporting the highest molecular weight (Mn = 2168) and moderate ε-CL conversion (65.42%). Through the optimization of reaction conditions, PCL was produced with a Mn of 2283 at 50 °C for 24 h. These results reveal that this lipase-mediated direct ring-opening polymerization of in situ formed ε-CL is an alternative route to the conventional synthesis of PCL.
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Affiliation(s)
- Yuanyuan Zhang
- Department of Pharmaceutics, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, China
| | - Peiyu Lu
- Department of Pharmaceutics, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, China
| | - Qinghua Sun
- Department of Pharmaceutics, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, China
| | - Tao Li
- Department of Pharmaceutics, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, China
| | - Lanjie Zhao
- Department of Pharmaceutics, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, China
| | - Xin Gao
- Department of Pharmaceutics, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, China
| | - Fanye Wang
- Department of Pharmaceutics, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, China.
| | - Junhong Liu
- Department of Pharmaceutics, College of Chemical Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, China.
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Mosleh S, Rahimi MR, Ghaedi M, Asfaram A, Jannesar R, Sadeghfar F. A rapid and efficient sonophotocatalytic process for degradation of pollutants: Statistical modeling and kinetics study. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.115] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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