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Ren T, Wang Y, Wang L, Liang L, Kong X, Wang H. Controllable Synthesis of Titanium Silicon Molecular Zeolite Nanosheet with Short b-Axis Thickness and Application in Oxidative Desulfurization. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:953. [PMID: 38869578 PMCID: PMC11173873 DOI: 10.3390/nano14110953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/14/2024]
Abstract
Titanium silicon molecular zeolite (TS-1) plays an important role in catalytic reactions due to its unique nanostructure. The straight channel on TS-1 was parallel to the orientation of the short b-axis and directly exposed to the aperture of the 10-member ring with a diameter of 0.54 nm × 0.56 nm. This structure could effectively reduce the diffuse restriction of bulk organic compounds during the oxidative desulfurization process. As a kind of cationic polymer electrolyte, polydimethyldiallyl ammonium chloride (PDDA) contains continuous [C8H16N+Cl-] chain segments, in which the Cl- could function as an effective structure-directing agent in the synthesis of nanomaterials. The chain of PDDA could adequately interact with the [0 1 0] plane in the preparation process of zeolite, and then the TS-1 nanosheet with short b-axis thickness (6 nm) could be obtained. The pore structure of the TS-1 nanosheet is controlled by regulating the content of PDDA. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), N2 physical adsorption analysis, infrared absorption spectrum and ultraviolet-visible spectrum were used to determine the TS-1. The thinner nanosheets exhibit excellent catalytic performance in oxidative desulfurization of dibenzothiophene (DBT), in which the removal rate could remain at 100% after three recycles. Here, the TS-1 nanosheet with short b-axis thickness has a promising future in catalytic reactions.
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Affiliation(s)
- Tieqiang Ren
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China; (T.R.); (Y.W.); (L.W.)
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
| | - Yujia Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China; (T.R.); (Y.W.); (L.W.)
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
| | - Lulu Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China; (T.R.); (Y.W.); (L.W.)
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
| | - Lisheng Liang
- Petroleum Engineering Research Institute, Petrochina Dagang Oil Field Company, Tianjin 300280, China;
| | - Xianming Kong
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
| | - Haiyan Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China; (T.R.); (Y.W.); (L.W.)
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
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2
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Guo Y, Li J, Xu Q, Song Z, Wang J, Han M, Chen L, Han N, Cheng W. TS-1@MCM-48 Core-Shell Catalysts for Efficient Oxidation of p-Diethylbenzene to High Value-Added Derivatives. Chemistry 2024; 30:e202303739. [PMID: 38287793 DOI: 10.1002/chem.202303739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/25/2023] [Accepted: 01/29/2024] [Indexed: 01/31/2024]
Abstract
To expand the market capacity of p-diethylbenzene (PDEB), core-shell zeolite (TS-1@MCM-48) is designed as a catalyst for PDEB oxidation. TS-1@MCM-48 catalyst is synthesized by in-situ crystallization method and characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), N2 adsorption-desorption, in-situ electron paramagnetic resonance (EPR) and 29Si nuclear magnetic resonance (29Si MAS-NMR). Oxidation of PDEB by H2O2 was investigated systematically in liquid phase. The conversion of PDEB over TS-1@MCM-48 was 28.1 % and the total selectivity was 72.6 %, where the selectivity of EAP (p-ethylacetophenone) and EPEA (4-ethyl-α-methylbenzyl alcohol) was 28.6 % and 44.0 %, respectively. Compared with TS-1 and MCM-48 zeolite, the conversion rate of reactants and the selectivity of products have been significantly improved. The catalytic performance of TS-1@MCM-48 is derived from its well-crystallized microporous core and mesoporous shell with regular channels, which make active sites of TS-1 zeolite in the catalyst be fully utilized and mass transfer resistance be largely reduced. Further through theoretical calculation, we propose that the oxidation of PDEB is the result of the combination and mutual transformation of free radical process and carbocation process. Core-shell structure ensures the conversion rate of raw materials and improves the selectivity of products.
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Affiliation(s)
- Ying Guo
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, 110629, Dalian, Liaoning, PR China
| | - Jinhong Li
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, 110629, Dalian, Liaoning, PR China
| | - Qingxin Xu
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, 110629, Dalian, Liaoning, PR China
| | - Zhimei Song
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, 110629, Dalian, Liaoning, PR China
| | - Jinge Wang
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, 110629, Dalian, Liaoning, PR China
| | - Mei Han
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, 110629, Dalian, Liaoning, PR China
| | - Lidong Chen
- Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, 110629, Dalian, Liaoning, PR China
| | - Na Han
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 215123, Suzhou, PR China
| | - Weiguo Cheng
- Beijing Key Laboratory of Ionic Liquids Clean Process, Chinese Academy of Sciences, Institute of Process Engineering, 100190, Beijing, PR China
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Serhane Y, Belkessa N, Bouzaza A, Wolbert D, Assadi AA. Continuous air purification by front flow photocatalytic reactor: Modelling of the influence of mass transfer step under simulated real conditions. CHEMOSPHERE 2022; 295:133809. [PMID: 35122816 DOI: 10.1016/j.chemosphere.2022.133809] [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: 11/22/2021] [Revised: 01/03/2022] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
In this work, a solution for the treatment of toxic gases based on a photocatalytic process using TiO2 coated on a cellulosic support, has been investigated. Here, cyclohexane was chosen as the reference for testing its removal efficiency via a continuous front flow reactor as type A anti-gas filters. The photocatalytic support was firstly characterized by EDX, to confirm its elemental composition. Then, the experiments were carried out, starting with a batch reactor in order to evaluate the degradation efficiency of the photocatalytic media, as well as the monitoring of the photocatalytic process which allowed the establishing of a carbon mass balance corresponding to the stoichiometric number of our target pollutant. The transition to a continuous treatment with a front flow reactor aims to highlight the influence of the input concentration (0.29-1.78 mM m-3) under different flow rates (12, 18 and 36 L min-1). The relative humidity effect was also investigated (from 5 to 90% of humidity) where an optimum rate was obtained around 35-45%. In addition, the mineralization rate was monitored. The major rates obtained were for a cyclohexane input concentration of 0.29 mM m-3 in wet condition (38%) at an air flow rate of 18 L min-1, where the CO2 selectivity reached 77% for an abatement of 62%. In order to understand the limiting steps of the photocatalytic process, a model considering the reactor geometry and the hydraulic flow was developed. The obtained results showed that the mass transfer must be considered in the photocatalytic process for a continuous treatment. The Langmuir-Hinshelwood bimolecular model was also developed to represent the influence of the humidity.
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Affiliation(s)
- Youcef Serhane
- Univ Rennes, École Nationale Supérieure de Chimie de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Nacer Belkessa
- Univ Rennes, École Nationale Supérieure de Chimie de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Abdelkrim Bouzaza
- Univ Rennes, École Nationale Supérieure de Chimie de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Dominique Wolbert
- Univ Rennes, École Nationale Supérieure de Chimie de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Aymen Amin Assadi
- Univ Rennes, École Nationale Supérieure de Chimie de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
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Molybdenum active sites implanted defective UiO-66(Zr) for cyclohexene epoxidation: Activity and kinetics investigation. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112312] [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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5
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Wang J, Niu Q, Liu G, Si C, Lv Z, Han H, Liu Q, Jin M. Engineering Dandelion-Like Hollow TS-1@SiO2: Structural Design and Oxidation Application. Catal Letters 2022. [DOI: 10.1007/s10562-022-04005-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sutradhar M, Andrade MA, Carabineiro SAC, Martins LMDRS, Guedes da Silva MDFC, Pombeiro AJL. Oxido- and Dioxido-Vanadium(V) Complexes Supported on Carbon Materials: Reusable Catalysts for the Oxidation of Cyclohexane. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1456. [PMID: 34072796 PMCID: PMC8230237 DOI: 10.3390/nano11061456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/17/2021] [Accepted: 05/28/2021] [Indexed: 11/24/2022]
Abstract
Oxidovanadium(V) and dioxidovanadium(V) compounds, [VO(OEt)L] (1) and [Et3NH][VO2L] (2), were synthesized using an aroylhydrazone Schiff base (5-bromo-2-hydroxybenzylidene)-2-hydroxybenzohydrazide (H2L). They were characterized by elemental analysis, Fourier-transform infrared spectroscopy (FT-IR), (1H and 51V) nuclear magnetic resonance (NMR), electrospray ionization mass spectrometry (ESI-MS) and single crystal X-ray diffraction analyses. Both complexes were immobilized on functionalized carbon nanotubes and activated carbon. The catalytic performances of 1 and 2, homogenous and anchored on the supports, were evaluated for the first time towards the MW-assisted peroxidative oxidation (with tert-butylhydroperoxide, TBHP) of cyclohexane under heterogeneous conditions. The immobilization of 1 and 2 on functionalized carbon materials improved the efficiency of catalytic oxidation and allowed the catalyst recyclability with a well-preserved catalytic activity.
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Affiliation(s)
- Manas Sutradhar
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (M.A.A.); (M.d.F.C.G.d.S.); (A.J.L.P.)
| | - Marta A. Andrade
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (M.A.A.); (M.d.F.C.G.d.S.); (A.J.L.P.)
| | - Sónia A. C. Carabineiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (M.A.A.); (M.d.F.C.G.d.S.); (A.J.L.P.)
- Laboratory of Catalysis and Materials (LCM), Associate Laboratory LSRE-LCM, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Largo da Torre, 2829-516 Caparica, Portugal
| | - Luísa M. D. R. S. Martins
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (M.A.A.); (M.d.F.C.G.d.S.); (A.J.L.P.)
| | - Maria de Fátima C. Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (M.A.A.); (M.d.F.C.G.d.S.); (A.J.L.P.)
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (M.A.A.); (M.d.F.C.G.d.S.); (A.J.L.P.)
- Research Institute of Chemistry, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
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Huang M, Wen Y, Wei H, Zong L, Gao X, Wu K, Wang X, Liu M. The Clean Synthesis of Small-Particle TS-1 with High-Content Framework Ti by Using NH 4HCO 3 and Suspended Seeds as an Assistant. ACS OMEGA 2021; 6:13015-13023. [PMID: 34056452 PMCID: PMC8158811 DOI: 10.1021/acsomega.1c00412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/15/2021] [Indexed: 05/08/2023]
Abstract
The synthesis of a TS-1 zeolite with high-content framework Ti and small particles has been developed by adding NH4HCO3 and suspended seeds as an assistant. With the addition of NH4HCO3, the Hofmann decomposition of the tetrapropylammonium cation (TPA+) decreased, and the framework Ti content of the zeolite increased first and then decreased while the particle became larger. With the assistance of suspended seeds, the TS-1 synthesized under a low-alkalinity system possesses small particle size and high-content framework Ti, and it shows the best catalytic activity among the prepared catalysts. Because the decomposition of TPA+ decreased, the mother liquid could be reused in the next run of preparation. Even though the recycled mother liquid was reused five times, all obtained TS-1 samples exhibited similar catalytic performances in propylene epoxidation. This work provides an efficient process for preparing TS-1 with good catalytic performance and reduces the discharge of the waste liquid.
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Affiliation(s)
- Mengtian Huang
- Green Catalysis
Center and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, P.R. China
| | - Yiqiang Wen
- Green Catalysis
Center and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, P.R. China
| | - Huijuan Wei
- Green Catalysis
Center and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, P.R. China
| | - Lukuan Zong
- Green Catalysis
Center and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, P.R. China
| | - Xin Gao
- Green Catalysis
Center and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, P.R. China
| | - Ke Wu
- Green Catalysis
Center and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, P.R. China
| | - Xiangyu Wang
- Green Catalysis
Center and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, P.R. China
| | - Meng Liu
- Green Catalysis
Center and College of Chemistry, Zhengzhou
University, Zhengzhou 450001, P.R. China
- Henan Engineering Center of New Energy Battery Materials, Henan D&A
Engineering Center of Advanced Battery Materials, College of Chemistry
and Chemical Engineering, Shangqiu Normal
University, Shangqiu 476000, P.R. China
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8
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Wang K, Xue B, Wang JL, He ZH, Zhang XY, Li SS, Wang W, Yang Y, Liu ZT. Efficient and selective oxidation of cyclohexane to cyclohexanone over flake hexagonal boron nitride/titanium dioxide hybrid photocatalysts. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Synthesis of Ni2+ cation modified TS-1 molecular sieve nanosheets as effective photocatalysts for alcohol oxidation and pollutant degradation. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63555-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Zhang Y, Yin Z, Hui H, Wang H, Li Y, Liu G, Kang J, Li Z, Mamba BB, Li J. Constructing defect-rich V2O5 nanorods in catalytic membrane electrode for highly efficient oxidation of cyclohexane. J Catal 2020. [DOI: 10.1016/j.jcat.2020.04.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Peng L, Liu C, Li N, Zhong W, Mao L, Kirk SR, Yin D. Direct cyclohexanone oxime synthesis via oxidation-oximization of cyclohexane with ammonium acetate. Chem Commun (Camb) 2020; 56:1436-1439. [PMID: 31913370 DOI: 10.1039/c9cc09840b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
An unexpected cascade reaction for oxidation-oximization of cyclohexane with ammonium acetate was developed for the first time to access cyclohexanone oxime with 50.7% selectivity (13.6% conversion). Tetrahedral Ti sites in Ni-containing hollow titanium silicalite can serve as bifunctional catalytic centers in the reaction. This methodology not only provides a direct approach to prepare cyclohexanone oxime, but also simplifies process chemistry. Various available nitrogen sources, such as ammonium salt and even ammonia can be used as starting materials.
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Affiliation(s)
- Ling Peng
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources, Key Laboratory of Chemical Biology Traditional Chinese Medicine Research Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China.
| | - Chan Liu
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources, Key Laboratory of Chemical Biology Traditional Chinese Medicine Research Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China.
| | - Na Li
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources, Key Laboratory of Chemical Biology Traditional Chinese Medicine Research Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China.
| | - Wenzhou Zhong
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources, Key Laboratory of Chemical Biology Traditional Chinese Medicine Research Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China.
| | - Liqiu Mao
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources, Key Laboratory of Chemical Biology Traditional Chinese Medicine Research Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China.
| | - Steven Robert Kirk
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources, Key Laboratory of Chemical Biology Traditional Chinese Medicine Research Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China.
| | - Dulin Yin
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources, Key Laboratory of Chemical Biology Traditional Chinese Medicine Research Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China.
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12
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Zhang M, Wen Y, Zong L, Wei H, Wang X. Improved Ti species distribution and hierarchical pores in TS-1: towards regeneration of TS-1 deactivated due to alkali corrosion. NEW J CHEM 2020. [DOI: 10.1039/d0nj00960a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
TS-1 deactivated in industrial cyclohexanone ammoximation can be effectively regenerated by hydrothermal treatment with TPABr and ethanolamine solution.
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Affiliation(s)
- Mingming Zhang
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
| | - Yiqiang Wen
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
| | - Lukuan Zong
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
| | - Huijuan Wei
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
| | - Xiangyu Wang
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
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13
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Cao X, Han T, Peng Q, Chen C, Li Y. Modifications of heterogeneous photocatalysts for hydrocarbon C–H bond activation and selective conversion. Chem Commun (Camb) 2020; 56:13918-13932. [DOI: 10.1039/d0cc05785a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This feature article summarizes the recent progress in the modification of heterogeneous photocatalysts for photocatalytic hydrocarbons’ C–H bond activation.
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Affiliation(s)
- Xing Cao
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Tong Han
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Qing Peng
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Chen Chen
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Yadong Li
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
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14
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Ding W, Peng H, Zhong W, Mao L, Yin D. Site-specific catalytic activities to facilitate solvent-free aerobic oxidation of cyclohexylamine to cyclohexanone oxime over highly efficient Nb-modified SBA-15 catalysts. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00479k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The development of highly active and selective heterogeneous catalysts for efficient oxidation of cyclohexylamine to cyclohexanone oxime is a challenge associated with the highly sensitive nitrogen center of cyclohexylamine.
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Affiliation(s)
- Wei Ding
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Haoyu Peng
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Wenzhou Zhong
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Liqiu Mao
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Dulin Yin
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
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15
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Wan Y, Guo Q, Wang K, Wang X. Efficient and selective photocatalytic oxidation of cyclohexane using O2 as oxidant in VOCl2 solution and mechanism insight. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.03.079] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Liu H, Yue Y, Shen T, Wang W, Li T, Bao X. Transformation and Crystallization Behaviors of Titanium Species in Synthesizing Ti-ZSM-5 Zeolites from Natural Rectorite Mineral. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01826] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haiyan Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, People’s Republic of China
| | - Yuanyuan Yue
- National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, People’s Republic of China
| | - Tong Shen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, People’s Republic of China
| | - Wanwan Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, People’s Republic of China
| | - Tiesen Li
- East China Design Institute, PetroChina Company, No. 21 Huayan Road, Qingdao 266071, People’s Republic of China
| | - Xiaojun Bao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, People’s Republic of China
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17
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Ternary hybrid TiO2-PANI-AuNPs for photocatalytic A3-coupling of aldehydes, amines and alkynes: First photochemical synthesis of propargyl amines. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:191-201. [DOI: 10.1016/j.msec.2019.01.085] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 01/14/2019] [Accepted: 01/20/2019] [Indexed: 12/29/2022]
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18
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The effect of microporous vanadosilicate AM-6 thin films as photocatalysts for the degradation of methylene blue. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.03.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Tateno H, Iguchi S, Miseki Y, Sayama K. Photo-Electrochemical C−H Bond Activation of Cyclohexane Using a WO3
Photoanode and Visible Light. Angew Chem Int Ed Engl 2018; 57:11238-11241. [DOI: 10.1002/anie.201805079] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Hiroyuki Tateno
- Advanced Functional Material Team; Research center for photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Shoji Iguchi
- Advanced Functional Material Team; Research center for photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Yugo Miseki
- Advanced Functional Material Team; Research center for photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Kazuhiro Sayama
- Advanced Functional Material Team; Research center for photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
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20
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Tateno H, Iguchi S, Miseki Y, Sayama K. Photo-Electrochemical C−H Bond Activation of Cyclohexane Using a WO3
Photoanode and Visible Light. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805079] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hiroyuki Tateno
- Advanced Functional Material Team; Research center for photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Shoji Iguchi
- Advanced Functional Material Team; Research center for photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Yugo Miseki
- Advanced Functional Material Team; Research center for photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Kazuhiro Sayama
- Advanced Functional Material Team; Research center for photovoltaics (RCPV); National Institute of Advanced Industrial Science and Technology (AIST); Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
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21
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Catalyst-free and solvent-free oxidation of cycloalkanes (C5-C8) with molecular oxygen: Determination of autoxidation temperature and product distribution. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2018.02.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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22
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Xiao Y, Liu J, Mai J, Pan C, Cai X, Fang Y. High-performance silver nanoparticles coupled with monolayer hydrated tungsten oxide nanosheets: The structural effects in photocatalytic oxidation of cyclohexane. J Colloid Interface Sci 2018; 516:172-181. [DOI: 10.1016/j.jcis.2018.01.057] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/14/2018] [Accepted: 01/15/2018] [Indexed: 10/18/2022]
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23
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Wei M, Chu C, Wang S, Yan J. Quantitative analysis of sesquiterpenes and comparison of three Curcuma wenyujin herbal medicines by micro matrix solid phase dispersion coupled with MEEKC. Electrophoresis 2018; 39:1119-1128. [PMID: 29355994 DOI: 10.1002/elps.201700454] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/04/2018] [Accepted: 01/15/2018] [Indexed: 01/20/2023]
Abstract
A simple, efficient and environmental friendly method was proposed for determining five sesquiterpenoids of Curcuma wenyujin by MSPD extraction coupled with MEEKC separation. Molecular sieve was applied as a solid support for extraction of sesquiterpenoids for the first time. Various parameters affecting extraction and separation efficiency were investigated. The optimized conditions involved dispersing sample (200 mg) with 200 mg of TS-1 for 150 s and using 1000 μL of methanol to elute five target analytes. Finally, they were well separated by using a running buffer containing 1.3% SDS, 5.0% 1-butanol, 0.5% ethyl acetate and 10% acetonitrile in 10 mM borate buffer at pH 9.0. Consequently, the developed method was fully validated and successfully applied to determine the five sesquiterpenoids including curdine, curcumenol, germacrone, furanodiene and β-elemene in Curcuma wenyujin origin's Chinese herbal medicines. Furthermore, hierarchical cluster analysis was performed based on the contents of target compounds for distinguishing steamed and non-steamed drugs. The present study provided a promising method for fast investigation and discrimination of chemical difference in steam & non-steamed Chinese medicines from Curcuma wenyujin origin.
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Affiliation(s)
- Mengmeng Wei
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Chu Chu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Shan Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Jizhong Yan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, P. R. China
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24
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Abstract
We synthesized a TS-1 catalyst to directly hydroxylate benzene to phenol with H2O2 as oxidant and water as solvent. The samples were characterized by FT-IR (Fourier Transform Infrared), DR UV-Vis (Diffused Reflectance Ultraviolet Visible), XRD (X-ray diffraction), SEM(scanning electron microscope), TEM (Transmission Electron Microscope), XPS (X-ray photoelectron spectroscopy), ICP (inductively coupled plasma spectrum), and N2 adsorption-desorption. A desirable phenol yield of 39% with 72% selectivity was obtained under optimized conditions: 0.15 g (0.34 to the mass of benzene) TS-1, 5.6 mmol C6H6, reaction time 45 min, 0.80 mL H2O2 (30%), 40.0 mL H2O, and reaction temperature 70 °C. The reuse of the TS-1 catalyst illustrated that the catalyst had a slight loss of activity resulting from slight Ti leaching from the first run and then kept stable. Almost all of the Ti species added in the preparation were successfully incorporated into the TS-1 framework, which were responsible for the good catalytic activity. Extraframework Ti species were not selective for hydroxylation.
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25
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Liu M, Shi S, Zhao L, Wang M, Zhu G, Zheng X, Gao J, Xu J. Effective Utilization of in Situ Generated Hydroperoxide by a Co–SiO2@Ti–Si Core–Shell Catalyst in the Oxidation Reactions. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03259] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meng Liu
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Song Shi
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Li Zhao
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Min Wang
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Guozhi Zhu
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xi Zheng
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Jin Gao
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Jie Xu
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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26
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Abdel Salam M, Al-Johani H. Enhancement of visible light irradiation photocatalytic activity of
$$\hbox {SrTiO}_{3}$$
SrTiO
3
nanoparticles by Pt doping for oxidation of cyclohexane. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1369-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Visible-light-induced tandem reaction of o -aminothiophenols and alcohols to benzothiazoles over Fe-based MOFs: Influence of the structure elucidated by transient absorption spectroscopy. J Catal 2017. [DOI: 10.1016/j.jcat.2017.01.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Ling C, Ye X, Zhang J, Zhang J, Zhang S, Meng S, Fu X, Chen S. Solvothermal synthesis of CdIn 2S 4 photocatalyst for selective photosynthesis of organic aromatic compounds under visible light. Sci Rep 2017; 7:27. [PMID: 28174428 PMCID: PMC5428363 DOI: 10.1038/s41598-017-00055-5] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/20/2016] [Indexed: 11/09/2022] Open
Abstract
Ternary chalcogenide semiconductor, cadmium indium sulfide (CdIn2S4), was prepared by a simple solvothermal method using ethylene glycol as a solvent, as well as indium chloride tetrahydrate (InCl3.4H2O), cadmium nitrate tetrahydrate [Cd(NO3)2.4H2O], and thiacetamide (TAA) as precursors. The resulted sample was subject to a series of characterizations. It is the first time to use CdIn2S4 sample as a visible light-driven photocatalyst for simultaneous selective redox transformation of organic aromatic compounds. The results indicate that the as-synthesized CdIn2S4 photocatalyst not only has excellent photocatalytic performance compared with pure In2S3 and CdS for the selective oxidation of aromatic alcohols in an oxygen environment, but also shows high photocatalytic redox activities under nitrogen atmosphere. A possible mechanism for the photocatalytic redox reaction in the coupled system was proposed. It is hoped that our current work could extend the applications of CdIn2S4 photocatalyst and provide new insights for selective transformations of organic compounds.
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Affiliation(s)
- Cancan Ling
- Department of Chemistry, Huaibei Normal University, Anhui Huaibei, 235000, People's Republic of China.,Department of Chemistry, University of Science and Technology of Anhui, Anhui Fengyang, 233100, People's Republic of China
| | - Xiangju Ye
- Department of Chemistry, University of Science and Technology of Anhui, Anhui Fengyang, 233100, People's Republic of China
| | - Jinghu Zhang
- Department of Chemistry, Huaibei Normal University, Anhui Huaibei, 235000, People's Republic of China.,Department of Chemistry, University of Science and Technology of Anhui, Anhui Fengyang, 233100, People's Republic of China
| | - Jinfeng Zhang
- Department of Chemistry, Huaibei Normal University, Anhui Huaibei, 235000, People's Republic of China
| | - Sujuan Zhang
- Department of Chemistry, Huaibei Normal University, Anhui Huaibei, 235000, People's Republic of China
| | - Sugang Meng
- Department of Chemistry, Huaibei Normal University, Anhui Huaibei, 235000, People's Republic of China
| | - Xianliang Fu
- Department of Chemistry, Huaibei Normal University, Anhui Huaibei, 235000, People's Republic of China
| | - Shifu Chen
- Department of Chemistry, Huaibei Normal University, Anhui Huaibei, 235000, People's Republic of China. .,Department of Chemistry, University of Science and Technology of Anhui, Anhui Fengyang, 233100, People's Republic of China.
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29
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Guo Z, Xiong G, Liu L, Song W, Jia Q. Crystallization mechanism and catalytic performance of TS-1 synthesized by an aerosol-assisted method. CrystEngComm 2017. [DOI: 10.1039/c7ce00364a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Z-scheme visible-light-driven Ag3PO4 nanoparticle@MoS2 quantum dot/few-layered MoS2 nanosheet heterostructures with high efficiency and stability for photocatalytic selective oxidation. J Catal 2017. [DOI: 10.1016/j.jcat.2016.11.013] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Zhu X, Wang P, Zhang Q, Wang Z, Liu Y, Qin X, Zhang X, Dai Y, Huang B. CdS–MoS2 heterostructures on Mo substrates via in situ sulfurization for efficient photoelectrochemical hydrogen generation. RSC Adv 2017. [DOI: 10.1039/c7ra06304k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CdS–MoS2 photoelectrode with a double layers core shell structure was prepared on Mo substrate through using a simple electrodeposition and– in situ sulfurization method on Mo substrate.
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Affiliation(s)
- Xianglin Zhu
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Peng Wang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Qianqian Zhang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Zeyan Wang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Yuanyuan Liu
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Xiaoyan Qin
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Xiaoyang Zhang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Ying Dai
- School of Physics
- Shandong University
- Jinan 250100
- China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
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32
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Zhang W, Xie J, Hou W, Liu Y, Zhou Y, Wang J. One-Pot Template-Free Synthesis of Cu-MOR Zeolite toward Efficient Catalyst Support for Aerobic Oxidation of 5-Hydroxymethylfurfural under Ambient Pressure. ACS APPLIED MATERIALS & INTERFACES 2016; 8:23122-23132. [PMID: 27523255 DOI: 10.1021/acsami.6b07675] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Supported catalysts are widely studied, and exploring new promising supports is significant to access more applications. In this work, novel copper-containing MOR-type zeolites Cu-MOR were synthesized in a one-pot template-free route and served as efficient supports for vanadium oxide. In the heterogeneous oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) with molecular oxygen (O2) under ambient pressure, the obtained catalyst demonstrated high yield (91.5%) and good reusability. Even under the ambient air pressure, it gave a DFF yield of 72.1%. Structure-activity relationship analysis indicated that the strong interaction between the framework Cu species and the guest V sites accounted for the remarkable performance. This work reveals that the Cu-MOR zeolite uniquely acts as the robust support toward well-performed non-noble metal heterogeneous catalyst for biomass conversion.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University (formerly Nanjing University of Technology) , Nanjing 210009, People's Republic of China
| | - Jingyan Xie
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University (formerly Nanjing University of Technology) , Nanjing 210009, People's Republic of China
| | - Wei Hou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University (formerly Nanjing University of Technology) , Nanjing 210009, People's Republic of China
| | - Yangqing Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University (formerly Nanjing University of Technology) , Nanjing 210009, People's Republic of China
| | - Yu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University (formerly Nanjing University of Technology) , Nanjing 210009, People's Republic of China
| | - Jun Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University (formerly Nanjing University of Technology) , Nanjing 210009, People's Republic of China
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33
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Irreversible deactivation of hollow TS-1 zeolite caused by the formation of acidic amorphous TiO2–SiO2 nanoparticles in a commercial cyclohexanone ammoximation process. J Catal 2016. [DOI: 10.1016/j.jcat.2016.02.032] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Solvent-free selective oxidation of cyclohexane with molecular oxygen over manganese oxides: Effect of the calcination temperature. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(15)60983-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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