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Abstract
Abstract
Bentonite clay is one of the oldest clays that humankind has been using from ancient times as traditional habits and remedies. In recent years researchers have found many applications of bentonite clay due to its various physio-chemical properties. In the present work, various physical and chemical properties of bentonite such as surface area, adsorption, swelling properties, cation exchange properties, etc. have been studied. This study also includes various procedures of modification of bentonite clay into Chitosan/Ag-bentonite composite, Fe-Modified bentonite, Hydroxyl-Fe-pillared-bentonite, Organo Bentonite, Organophilic clay, Arenesulfonic Acid-Functionalized Bentonite, Bentonite clay modified with Nb2O5. The study reveals that bentonite clay has large surface area due to similar structure with montmorillonite and it is found that the functionality of bentonite can be increased by increasing total surface area of the clay. Due to high cation exchangeability of bentonite, various cations can be incorporated into it. After purification and modification, the absorbent aluminum phyllosilicate bentonite clay can be used as an efficient catalyst in various types of catalytic reactions. Moreover, bentonite clay can be applied in various field like drilling, civil engineering, agriculture and water treatment.
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Affiliation(s)
- Debasis Borah
- Department of Chemistry , Bodoland University , Kokrajhar , Assam 783370 , India
| | - Harshajit Nath
- Department of Chemistry , Bodoland University , Kokrajhar , Assam 783370 , India
| | - Hemaprobha Saikia
- Department of Chemistry , Bodoland University , Kokrajhar , Assam 783370 , India
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Influence of cadmium on Ru/xCd/Al2O3 catalyst for benzene partial hydrogenation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Chen Z, Sun H, Peng Z, Gao J, Li B, Liu Z, Liu S. Selective Hydrogenation of Benzene: Progress of Understanding for the Ru-Based Catalytic System Design. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01475] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhihao Chen
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
- Zhengzhou Tobacco Research Institute of CNTC, No. 2 Fengyang Street, High-Tech Zone, Zhengzhou 450001, Henan, China
| | - Haijie Sun
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
- Institute of Environmental and Catalytic Engineering, College of Chemistry and Chemical Engineering, Zhengzhou Normal University, Zhengzhou 450044, China
| | - Zhikun Peng
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Jie Gao
- Integrated Analytical Laboratories, 273 Franklin Road #10, Randolph, New Jersey 07869, United States
| | - Baojun Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Zhongyi Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Shouchang Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
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Pisk J, Agustin D, Poli R. Organic Salts and Merrifield Resin Supported [PM 12O 40] 3- (M = Mo or W) as Catalysts for Adipic Acid Synthesis. MOLECULES (BASEL, SWITZERLAND) 2019; 24:molecules24040783. [PMID: 30795615 PMCID: PMC6412659 DOI: 10.3390/molecules24040783] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/15/2019] [Accepted: 02/15/2019] [Indexed: 11/23/2022]
Abstract
Adipic acid (AA) was obtained by catalyzed oxidation of cyclohexene, epoxycyclohexane, or cyclohexanediol under organic solvent-free conditions using aqueous hydrogen peroxide (30%) as an oxidizing agent and molybdenum- or tungsten-based Keggin polyoxometalates (POMs) surrounded by organic cations or ionically supported on functionalized Merrifield resins. Operating under these environmentally friendly, greener conditions and with low catalyst loading (0.025% for the molecular salts and 0.001–0.007% for the supported POMs), AA could be produced in interesting yields.
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Affiliation(s)
- Jana Pisk
- Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de Coordination (LCC), Université de Toulouse, UPS, INPT, 205, route de Narbonne, 31077 Toulouse, France.
- Université de Toulouse, IUT P. Sabatier, Département de Chimie, Av. G. Pompidou, BP 20258, 81104 Castres CEDEX, France.
| | - Dominique Agustin
- Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de Coordination (LCC), Université de Toulouse, UPS, INPT, 205, route de Narbonne, 31077 Toulouse, France.
- Université de Toulouse, IUT P. Sabatier, Département de Chimie, Av. G. Pompidou, BP 20258, 81104 Castres CEDEX, France.
| | - Rinaldo Poli
- Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de Coordination (LCC), Université de Toulouse, UPS, INPT, 205, route de Narbonne, 31077 Toulouse, France.
- Institut Universitaire de France, 103, bd Saint-Michel, 75005 Paris, France.
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Gholinejad M, Bonyasi R, Najera C, Saadati F, Bahrami M, Dasvarz N. Gold Nanoparticles Supported on Imidazole-Modified Bentonite: Environmentally Benign Heterogeneous Catalyst for the Three-Component Synthesis of Propargylamines in Water. Chempluschem 2018; 83:431-438. [DOI: 10.1002/cplu.201800162] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 04/15/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Mohammad Gholinejad
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); P. O. Box 45195-1159, Gavazang Zanjan 45137-66731 Iran
- Research Center for Basic Sciences & Modern Technologies (RBST); Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Reza Bonyasi
- Department of Chemistry; Faculty of Science; University of Zanjan; P. O. Box 45195-313 Zanjan Iran
| | - Carmen Najera
- Departamento de Química Orgánica; and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Fariba Saadati
- Department of Chemistry; Faculty of Science; University of Zanjan; P. O. Box 45195-313 Zanjan Iran
| | - Maedeh Bahrami
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); P. O. Box 45195-1159, Gavazang Zanjan 45137-66731 Iran
| | - Neda Dasvarz
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); P. O. Box 45195-1159, Gavazang Zanjan 45137-66731 Iran
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Goyal R, Sameer S, Sarkar B, Bag A, Singhal N, Bordoloi A. Synthesis of AgWCN
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Nanocomposites for the One-Step Conversion of Cyclohexene to Adipic Acid and Its Mechanistic Studies. Chemistry 2017; 23:16555-16565. [DOI: 10.1002/chem.201703111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Reena Goyal
- Nano Catalysis area, Refinery Technology Division; CSIR-Indian Institute of Petroleum; Dehradun 248005 India
| | - Siddharth Sameer
- Nano Catalysis area, Refinery Technology Division; CSIR-Indian Institute of Petroleum; Dehradun 248005 India
| | - Bipul Sarkar
- Nano Catalysis area, Refinery Technology Division; CSIR-Indian Institute of Petroleum; Dehradun 248005 India
- Chemical Science Division; CSIR-Indian Institute of Petroleum; Dehradun 248005 India
| | - Arijit Bag
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; West-Bengal India
| | - Nikita Singhal
- Nano Catalysis area, Refinery Technology Division; CSIR-Indian Institute of Petroleum; Dehradun 248005 India
| | - Ankur Bordoloi
- Nano Catalysis area, Refinery Technology Division; CSIR-Indian Institute of Petroleum; Dehradun 248005 India
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Heterophase-structured nanocrystals as superior supports for Ru-based catalysts in selective hydrogenation of benzene. Sci Rep 2017; 7:39847. [PMID: 28057914 PMCID: PMC5216362 DOI: 10.1038/srep39847] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 11/28/2016] [Indexed: 12/03/2022] Open
Abstract
ZrO2 heterophase structure nanocrystals (HSNCs) were synthesized with tunable ratios of monoclinic ZrO2 (m-ZrO2) to tetragonal ZrO2 (t-ZrO2). The phase mole ratio of m-ZrO2 versus t-ZrO2 in ZrO2 HSNCs was tuned from 40% to 100%. The concentration of the surface hydroxyl groups on m-ZrO2 is higher than that on t-ZrO2. ZrO2 HSNCs have different surface hydroxyl groups on two crystalline phases. This creates more intimate synergistic effects than their single-phase counterparts. The ZrO2 HSNCs were used as effective supports to fabricate heterophase-structured Ru/ZrO2 catalysts for benzene-selective hydrogenation. The excellent catalytic performance including high activity and selectivity is attributed to the heterogeneous strong/weak hydrophilic interface and water layer formed at the m-ZrO2/t-ZrO2 catalyst junction.
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Selective Hydrogenation of Benzene to Cyclohexene over 2Ru/La2O3-ZnO Catalyst without Additional Modifiers. ChemCatChem 2016. [DOI: 10.1002/cctc.201600493] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wu GM, Zhou JL, Lv MM, Xie W, Sun S, Gao C, Wang WD, Bao J. Clay-Supported Molybdenum-Based Catalysts for Higher Alcohol Synthesis from Syngas. CHINESE J CHEM PHYS 2015. [DOI: 10.1063/1674-0068/28/cjcp1504075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Liu J, Xu S, Bing W, Wang F, Li C, Wei M, Evans DG, Duan X. Cu-Decorated Ru Catalysts Supported on Layered Double Hydroxides for Selective Benzene Hydrogenation to Cyclohexene. ChemCatChem 2015. [DOI: 10.1002/cctc.201402895] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
The partial hydrogenation of benzene to cyclohexene is an economically interesting and technically challenging reaction. Over the last four decades, a lot of work has been dedicated to the development of an exploitable process and several approaches have been investigated. However, environmental constraints often represent a limit to their industrial application, making further research in this field necessary. The goal of this review is to highlight the main findings of the different disciplines involved in understanding the governing principles of this reaction from a sustainable chemistry standpoint. Special emphasis is given to ruthenium-catalyzed liquid phase batch hydrogenation of benzene.
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Affiliation(s)
- Lucas Foppa
- Institute of Chemistry, UFRGS, Avenida Bento Gonalves, 9500, Porto Alegre, 91501-970 RS, Brazil.
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Wu T, Zhang P, Jiang T, Yang D, Han B. Enhancing the selective hydrogenation of benzene to cyclohexene over Ru/TiO2 catalyst in the presence of a very small amount of ZnO. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5249-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhou G, Tan X, Pei Y, Fan K, Qiao M, Sun B, Zong B. Structural and Catalytic Properties of Alkaline Post-Treated Ru/ZrO2Catalysts for Partial Hydrogenation of Benzene to Cyclohexene. ChemCatChem 2013. [DOI: 10.1002/cctc.201300175] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Van de Vyver S, Román-Leshkov Y. Emerging catalytic processes for the production of adipic acid. Catal Sci Technol 2013. [DOI: 10.1039/c3cy20728e] [Citation(s) in RCA: 231] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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