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Brønsted acidic Heteropolyanion-Based ionic Liquid:A highly efficient Reaction-induced Self-separation catalyst for Baeyer-Villiger reaction. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ye HL, Liu SX, Zhang C, Cai YQ, Shi YF. Dehydrogenation of methylcyclohexane over Pt-based catalysts supported on functional granular activated carbon. RSC Adv 2021; 11:29287-29297. [PMID: 35479578 PMCID: PMC9040619 DOI: 10.1039/d1ra05480e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 08/20/2021] [Indexed: 11/21/2022] Open
Abstract
Herein, we developed the dehydrogenation of methylcyclohexane over Pt-based catalysts supported on functional granular activated carbon. Sulphuric acid, hydrogen peroxide, nitric acid and aminopropyl triethoxy silane were adopted to modify the granular activated carbon. The structural characterizations suggested that the carbon materials had a large surface area, abundant pore structure, and a high number of oxygen-containing functional groups, which influenced the Pt-based catalysts on the particle size, dispersion and dehydrogenation activity. The hydrogen temperature-programmed reduction technique was utilized to investigate the interaction between the active component Pt and the various functionalized granular activated carbon materials. The CO pulse technique revealed the particle sizes and dispersion of the as-prepared Pt-based catalysts. Finally, the Pt-based catalysts were successfully applied to study their catalytic activity in the dehydrogenation reaction of methylcyclohexane. The results showed that the Pt-based catalyst over granular activated carbon functionalized with sulphuric acid groups had a higher conversion of methylcyclohexane (63%) and a larger hydrogen evolution rate (741.1 mmol gPt -1 min-1) than the other resulting Pt-based catalysts at 300 °C.
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Affiliation(s)
- Hong-Li Ye
- Laboratory of Aquatic Product Quality, Safety and Processing, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences Shanghai 200090 China .,Institute of New Catalytic Materials Science, MOE Key Laboratory of Advanced Energy Materials Chemistry, School of Materials Science and Engineering, National Institute of Advanced Materials, Nankai University Tianjin 300350 China
| | - Shuang-Xi Liu
- Institute of New Catalytic Materials Science, MOE Key Laboratory of Advanced Energy Materials Chemistry, School of Materials Science and Engineering, National Institute of Advanced Materials, Nankai University Tianjin 300350 China .,Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
| | - Cui Zhang
- Institute of New Catalytic Materials Science, MOE Key Laboratory of Advanced Energy Materials Chemistry, School of Materials Science and Engineering, National Institute of Advanced Materials, Nankai University Tianjin 300350 China .,Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
| | - You-Qiong Cai
- Laboratory of Aquatic Product Quality, Safety and Processing, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences Shanghai 200090 China
| | - Yong-Fu Shi
- Laboratory of Aquatic Product Quality, Safety and Processing, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences Shanghai 200090 China
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Jarmolińska S, Feliczak-Guzik A, Nowak I. Synthesis, Characterization and Use of Mesoporous Silicas of the Following Types SBA-1, SBA-2, HMM-1 and HMM-2. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4385. [PMID: 33019709 PMCID: PMC7579092 DOI: 10.3390/ma13194385] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 01/09/2023]
Abstract
Mesoporous silicas have enjoyed great interest among scientists practically from the moment of their discovery thanks to their unique attractive properties. Many types of mesoporous silicas have been described in literature, the most thoroughly MCM-41 and SBA-15 ones. The focus of this review are the methods of syntheses, characterization and use of mesoporous silicas from SBA (Santa Barbara Amorphous) and HMM (Hybrid Mesoporous Materials) groups. The first group is represented by (i) SBA-1 of three-dimensional cubic structure and Pm3n symmetry and (ii) SBA-2 of three-dimensional combined hexagonal and cubic structures and P63/mmc symmetry. The HMM group is represented by (i) HMM-1 of two-dimensional hexagonal structure and p6mm symmetry and (ii) HMM-2 of three-dimensional structure and P63/mmc symmetry. The paper provides comprehensive information on the above-mentioned silica materials available so far, also including the data for the silicas modified with metal ions or/and organic functional groups and examples of the materials applications.
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Affiliation(s)
| | | | - Izabela Nowak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (S.J.); (A.F.-G.)
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Lin CH, Deka JR, Wu CE, Tsai CH, Saikia D, Yang YC, Kao HM. Bifunctional Cage-Type Cubic Mesoporous Silica SBA-1 Nanoparticles for Selective Adsorption of Dyes. Chem Asian J 2017; 12:1314-1325. [PMID: 28332343 DOI: 10.1002/asia.201700286] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 03/21/2017] [Indexed: 11/09/2022]
Abstract
Bifunctional SBA-1 mesoporous silica nanoparticles (MSNs) with carboxylic acid and amino groups (denoted as CNS-10-10) have been successfully synthesized, characterized, and employed as adsorbents for dye removal. Adsorbent CNS-10-10 shows high affinity towards cationic and anionic dyes in a wide pH range, and exhibits selective dye removal of a two-dye mixture system of cationic methylene blue and anionic eosin Y. By changing the pH of the medium, the selectivity of the adsorption behavior can be easily modulated. For comparison purposes, the counterparts, that is, pure silica SBA-1 MSNs (CS-0) and those with either carboxylic acid or amino functional groups (denoted as CS-10 and NS-10, respectively) were also prepared to evaluate their dye-adsorption behaviors. As revealed by the zeta-potential measurements, the electrostatic interaction between the adsorbent surface and the dye molecule plays an important role in the adsorption mechanism. Adsorbent CNS-10-10 can be easily regenerated and reused, and maintains its adsorption efficiency up to 80 % after four cycles.
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Affiliation(s)
- Chien-Hua Lin
- Department of Chemistry, National Central University, Chung-Li, 32054, Taiwan, R.O.C
| | - Juti Rani Deka
- Institute of Materials, Science and Engineering, National Taipei University of Technology, Taipei, 106, Taiwan, R.O.C
| | - Cheng-En Wu
- Department of Chemistry, National Central University, Chung-Li, 32054, Taiwan, R.O.C
| | - Cheng-Hsun Tsai
- Department of Chemistry, National Central University, Chung-Li, 32054, Taiwan, R.O.C
| | - Diganta Saikia
- Department of Chemistry, National Central University, Chung-Li, 32054, Taiwan, R.O.C
| | - Yung-Chin Yang
- Institute of Materials, Science and Engineering, National Taipei University of Technology, Taipei, 106, Taiwan, R.O.C
| | - Hsien-Ming Kao
- Department of Chemistry, National Central University, Chung-Li, 32054, Taiwan, R.O.C
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Noda Y, Li K, Engler AM, Elliott WA, Rioux RM. Development of a robust sulfur quantification and speciation method for SBA-15-supported sulfonic acid catalysts. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00292g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In catalytic applications of surface-modified mesoporous silica materials, distinguishing and quantifying different types of functional groups on the surface is crucial for enabling accurate evaluation of catalytic activity and possible cooperativity among mixed functional groups.
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Affiliation(s)
- Yu Noda
- Department of Chemical Engineering
- The Pennsylvania State University
- University Park
- USA
| | - Kaijin Li
- Department of Chemical Engineering
- The Pennsylvania State University
- University Park
- USA
| | - Alexander M. Engler
- Department of Chemical Engineering
- The Pennsylvania State University
- University Park
- USA
| | - William A. Elliott
- Department of Chemical Engineering
- The Pennsylvania State University
- University Park
- USA
| | - Robert M. Rioux
- Department of Chemical Engineering
- The Pennsylvania State University
- University Park
- USA
- Department of Chemistry
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Silva FA, Pissetti FL. Adsorption of cadmium ions on thiol or sulfonic-functionalized poly(dimethylsiloxane) networks. J Colloid Interface Sci 2014; 416:95-100. [DOI: 10.1016/j.jcis.2013.10.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 10/25/2013] [Accepted: 10/27/2013] [Indexed: 10/26/2022]
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Alonso B, Marichal C. Solid-state NMR studies of micelle-templated mesoporous solids. Chem Soc Rev 2013; 42:3808-20. [DOI: 10.1039/c2cs35368g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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