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Zeng Y, Zhuo Q, Pan J, Lan Y, Dai L, Guan B. Switching reactive oxygen species reactions derived from Mn-Pt anchored zeolite for selective catalytic ozonation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123747. [PMID: 38460590 DOI: 10.1016/j.envpol.2024.123747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/28/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
Rationally switching reactive oxygen species (ROS) reactions in advanced oxidation processes (AOPs) is urgently needed to improve the adaptability and efficiency for the engineering application. Herein we synthesized bimetallic Mn-Pt catalysts based on zeolite to realize the switching of ROS reactions in catalytic ozonation for sustainable degradation of organic pollutants from water. The ROS reactions switched from singlet oxygen (1O2, 71.01%) to radical-dominated (93.79%) pathway by simply introducing defects and changing Pt/Mn ratios. The oxygen vacancy induced by anchoring Mn-Pt species from zeolite external surface (MnPt/H-Beta) to internal framework (MnPt@Si-Beta) exposes more electron-rich Pt2+/Pt4+ redox sites, accelerating the decomposition of O3 to generate •OH via electron transfer and switching ROS reactions. The Mn site acted as a bridge plays a critical role in conducting electrons from organic pollutants to Pt sites, which solidly solves the electron loss of catalysts, facilitating the efficient degradation of pollutants. A 34.7-fold increase in phenol degradation compared with the non-catalytic ozonation and an excellent catalytic stability are achieved by MnPt@Si-Beta/O3. The 1O2-dominated ROS reaction originated from MnPt/H-Beta/O3 exhibits superior performances in anti-interference for Cl-, HCO3-, NO3-, and SO4-. This work establishes a novel strategy for switching ROS reactions to expand the targeted applications of O3 based AOPs for environmental remediation.
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Affiliation(s)
- Yaxiong Zeng
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qizheng Zhuo
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jian Pan
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yuan Lan
- Zhejiang Zheda Qiushi Property Management Co., Ltd., Logistics Group, Zhejiang University, Hangzhou, 310058, China
| | - Liyan Dai
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Baohong Guan
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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2
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Liu X, Zhu Z. Synthesis and Catalytic Applications of Advanced Sn- and Zr-Zeolites Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306533. [PMID: 38148424 PMCID: PMC10953593 DOI: 10.1002/advs.202306533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 11/09/2023] [Indexed: 12/28/2023]
Abstract
The incorporation of isolated Sn (IV) and Zr (IV) ions into silica frameworks is attracting widespread attention, which exhibits remarkable catalytic performance (conversion, selectivity, and stability) in a broad range of reactions, especially in the field of biomass catalytic conversion. As a representative example, the conversion route of carbohydrates into valuable platform and commodity chemicals such as lactic acid and alkyl lactates, has already been established. The zeotype materials also possess water-tolerant ability and are capable to be served as promising heterogeneous catalysts for aqueous reactions. Therefore, dozens of Sn- and Zr-containing silica materials with various channel systems have been prepared successfully in the past decades, containing 8 membered rings (MR) small pore CHA zeolite, 10-MR medium pore zeolites (FER, MCM-56, MEL, MFI, MWW), 12-MR large pore zeolites (Beta, BEC, FAU, MOR, MSE, MTW), and 14-MR extra-large pore UTL zeolite. This review about Sn- and Zr-containing metallosilicate materials focuses on their synthesis strategy, catalytic applications for diverse reactions, and the effect of zeolite characteristics on their catalytic performances.
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Affiliation(s)
- Xue Liu
- Department of ChemistryCollege of ScienceHebei Agricultural UniversityLingyusi Road 289Baoding071001P. R. China
| | - Zhiguo Zhu
- College of Chemistry and Chemical EngineeringYantai UniversityQingquan Road 30Yantai264005P. R. China
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3
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Jain S, Satpute SS, Jha RK, Patel MS, Kumar S. Bidentate Ligand Driven Intramolecularly Te…O Bonded Organotellurium Cations from Synthesis, Stability to Catalysis. Chemistry 2024; 30:e202303089. [PMID: 37966430 DOI: 10.1002/chem.202303089] [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: 10/16/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 11/16/2023]
Abstract
A new series of unsymmetrical phenyl tellurides derived from 2-N-(quinolin-8-yl) benzamide ligand has been synthesized in a practical manner by the copper-catalyzed method by using diaryl ditelluride and Mg as a reductant at room temperature. In order to augment the Lewis acidity of these newly formed unsymmetrical monotellurides, these have been transformed into corresponding unsymmetrical 2-N-(quinolin-8-yl)benzamide tellurium cations. Subsequently, these Lewis acidic tellurium cations were used as chalcogen bonding catalysts, enabling the synthesis of various substituted 1,2-dihydroquinolines by activating ketones with anilines under mild conditions. Moreover, the synthesized 2-N-(quinolin-8-yl)benzamide phenyl tellurium cation has also catalyzed the formation of β-amino alcohols in high regioselectivity by effectively activating epoxides at room temperature. Mechanistic insight by 1 H and 19 F NMR study, electrostatic surface potential (ESP map), control reaction in which tellurium cation reacted explosively with epoxide, suggested that the enhanced Lewis acidity of tellurium center seems responsible for efficient catalytic activities under mild conditions enabling β-amino alcohols with excellent regioselectivity and 1,2-dihydroquinolines with trifluoromethyl, nitro, and pyridylsubstitution, which were difficult to access.
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Affiliation(s)
- Saket Jain
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Saurabh Sandip Satpute
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Raushan Kumar Jha
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Mili Sanjeev Patel
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri By-pass Road, Bhopal, 462 066, Madhya Pradesh, India
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Zeng Y, Zhuo Q, Dai L, Guan B. Mn anchored zeolite molecular nest for enhanced catalytic ozonation of cephalexin. CHEMOSPHERE 2023:139058. [PMID: 37257654 DOI: 10.1016/j.chemosphere.2023.139058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/20/2023] [Accepted: 05/26/2023] [Indexed: 06/02/2023]
Abstract
The molecular nest structured catalysts have demonstrated better performance than the traditional supported catalysts. However, they have not been tried in antibiotics or other organic pollutants removal from water by advanced oxidation processes (AOPs). Here we synthesized Mn anchored zeolite molecular nest (Mn@ZN) for the catalytic ozonation of cephalexin (CLX), which is the widely used antibiotic and also a refractory pollutant in water. The ozonation catalyzed by Mn@ZN achieves 97% of CLX degradation in only 2 min and a reaction rate constant of 0.2454 L mg-1·s-1, which is 79.2 times higher than that of the non-catalytic ozonation. Even after ten cycles, the 0.46Mn@ZN/O3 still achieves a CLX degradation efficiency higher than 88% in 2 min, presenting an excellent stability. Mn ions stabilized by the molecular nests facilitate Lewis acid sites and oxygen vacancies, providing active sites for O3 sorption and decomposition into ·O2- and 1O2 through electrons transfer for the radical reaction with CLX. DFT calculation indicates that both the oxygen vacancy formation energy and the O3 adsorption energy of Mn@ZN are reduced by the Mn species introduction. This study finds a fascinating catalyst of Mn@ZN for the catalytic ozonation of antibiotics, and also a smart design strategy for zeolite confined metals catalysts for water treatment.
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Affiliation(s)
- Yaxiong Zeng
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 320013, China
| | - Qizheng Zhuo
- School of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning, 110819, China
| | - Liyan Dai
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 320013, China
| | - Baohong Guan
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 320058, China.
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5
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Jin Y, Zong L, Wang X, Wei H. Catalytic Enhancement of Cyclohexene Hydration by Ga-Doped ZSM-5 Zeolites. ACS OMEGA 2022; 7:26289-26297. [PMID: 35936401 PMCID: PMC9352339 DOI: 10.1021/acsomega.2c02031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
Ga-doped ZSM-5 zeolites were directly synthesized by a facile one-step hydrothermal method without organic templates and calcination and then investigated in the cyclohexene hydration reaction. The structure, component, textural properties, and acidity of the as-prepared samples were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence (XRF), Brunauer-Emmett-Teller (BET), ammonia temperature-programmed desorption (NH3-TPD), pyridine-chemisorbed IR (Py-IR), and 71Ga, 27Al, 29Si, and 1H magic-angle spinning (MAS) NMR techniques. The characterization results showed that the introduction of Ga atoms into the ZSM-5 zeolite framework is much easier than Al atoms and beneficial to promote the formation of small-sized crystals. The number of Brønsted acid sites of Ga-doped ZSM-5 samples obviously increased compared with Ga0-ZSM-5. Additionally, the highest cyclohexanol yield (10.1%) was achieved over the Ga3-ZSM-5 sample, while the cyclohexanol yield of the Ga0-ZSM-5 sample was 8.6%. This result indicated that the improved catalytic performance is related to its larger external surface area, smaller particle size, and more Brønsted acid sites derived from Si-OH-Al and Si-OH-Ga of Ga3-ZSM-5. Notably, the green route reduces harmful gas emission and provides a basis for doping other heteroatoms to regulate the catalytic performance of zeolites, especially in industrial production.
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Affiliation(s)
- Yuzhen Jin
- 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
- Zhejiang
Medicine Co, Ltd., Changhai Biological Branch, Shaoxing 312000, P.R. China
| | - Xiangyu Wang
- 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
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6
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Wang W, Liu H, Yang C, Fan T, Cui C, Lu X, Tang Z, Li G. Coordinating Zirconium Nodes in Metal-Organic Framework with Trifluoroacetic Acid for Enhanced Lewis Acid Catalysis. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2148-0] [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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7
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Bakhotmah DA, Hussein MA, El-Said W, Ismael MH, Elshehy E. Efficient removal of cesium and strontium from an aqueous solution using a zirconosilicate/vanadium oxide nanocomposite. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2048005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Dina A. Bakhotmah
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mahmoud A. Hussein
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Waleed El-Said
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
- Chemistry Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
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8
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Yang HQ, Chen ZX. Theoretical Studies on Bimetallic Salen Complexes Catalyzed Epoxide Hydration: Effects of Metal Centers, Substrates, and Ligands. J Phys Chem A 2021; 125:10155-10164. [PMID: 34793164 DOI: 10.1021/acs.jpca.1c07707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
To provide guiding information for developing efficient and stable catalysts for epoxide hydration, we investigated the mechanism of propylene oxide (PO) to 1,2-propylene glycol (PG) using density functional theory (DFT) calculations. The mechanism was identified to follow the cooperative bimetallic mechanism in which a metal-salen complex activated H2O attacks the middle carbon atom of a metal-salen complex activated PO from the oxygen side of three-membered ring. Analyses reveal that the distortion energy correlates linearly with the barrier, and the hydrogen bonding between H2O and PO increases from reaction precursors to transition states. A nice linear relationship exists between the ratio of square root of ionic potential to the square of the distance from the metal ion spherical surface to the oxygen atom center of PO. It is demonstrated that the substrates with larger polarizability tend to have lower hydration barriers and the influence of ligands is less than that of metal centers and substrates. Modifying metal ions is the first choice for developing metal-salen catalysts, and metal ions with more formal charges and larger radius are expected to exhibit high activity. These findings shed lights on the mechanism and provide guiding information for developing efficient metal-salen catalysts for epoxide hydration.
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Affiliation(s)
- Hui-Qing Yang
- Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Zhao-Xu Chen
- Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
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9
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10
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Mechanism and kinetics of epoxide ring-opening with carboxylic acids catalyzed by the corresponding carboxylates. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116746] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Chaudhary G, Gupta N, Singh AP. Synthesis and application of Cu(II) immobilized MCM-41 based solid Lewis acid catalyst for aminolysis reaction under solvent-free condition. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Exploring tailor-made Brønsted acid sites in mesopores of tin oxide catalyst for β-alkoxy alcohol and amino alcohol syntheses. Sci Rep 2021; 11:15718. [PMID: 34344963 PMCID: PMC8333069 DOI: 10.1038/s41598-021-95089-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 07/08/2021] [Indexed: 11/09/2022] Open
Abstract
The generation of Brønsted (Sn–OH) and Lewis (coordinatively unsaturated metal centers) acidic sites on the solid surface is a prime demand for catalytic applications. Mesoporous materials are widely employed as catalysts and supports owing to their different nature of acidic sites. Nevertheless, the procedure adopted to generate acid functionalities in these materials involves tedious steps. Herein, we report the tunable acidic sites containing Brønsted sites with relatively varied acid strength in tin oxide by employing soft template followed by simple thermal treatment at various temperatures. The readily accessible active sites, specifically Brønsted acidic sites distributed throughout the tin oxide framework as well as mesoporosity endow them to perform with exceptionally high efficiency for epoxide ring opening reactions with excellent reusability. These features promoted them to surpass stannosilicate catalysts for the epoxide ring opening reactions with alcohol as a nucleophile and the study was extended to aminolysis of epoxide with the amine. The existence of relatively greater acid strength and numbers in T-SnO2-350 catalyst boosts to produce a high amount of desired products over other tin oxide catalysts. The active sites responsible in mesoporous tin oxide for epoxide alcoholysis were studied by poisoning the Brønsted acidic sites in the catalyst using 2,6-lutidine as a probe molecule.
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13
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Mon M, Leyva-Pérez A. Zeolites catalyze selective reactions of large organic molecules. ADVANCES IN CATALYSIS 2021. [DOI: 10.1016/bs.acat.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Kumar A, Srivastava R. Bi‐Functional Magnesium Silicate Catalyzed Glucose and Furfural Transformations to Renewable Chemicals. ChemCatChem 2020. [DOI: 10.1002/cctc.202000711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Abhinav Kumar
- Catalysis Research Laboratory Department of Chemistry Indian Institute of Technology Ropar Rupnagar-140001 Punjab India
| | - Rajendra Srivastava
- Catalysis Research Laboratory Department of Chemistry Indian Institute of Technology Ropar Rupnagar-140001 Punjab India
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15
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Rani P, Srivastava R. Comprehensive Understanding of the Eco-Friendly Synthesis of Zeolites: Needs of 21 st Century Sustainable Chemical Industries. CHEM REC 2020; 20:968-988. [PMID: 32706177 DOI: 10.1002/tcr.202000062] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/25/2020] [Indexed: 01/21/2023]
Abstract
Zeolites have taken a leading position in petrochemical, fine, and bulk chemical industries due to their porous architecture, pore sizes, tunable acidity, and thermal stability. Various strategies of zeolites preparation, including template-free, solvent-free, and toxic mineral-free strategies are summarized. Moreover, the zeolite synthesis using naturally occurring minerals and sustainable natural templates is also discussed, which involves the synthesis of nanocrystalline zeolites of different framework structures using plant-based natural templates and biomass-derived renewable chemicals. Overall this personal account provides the fundamentals of various sustainable synthetic strategies reported in the literature for the synthesis of zeolites with suitable examples that will be useful for the students and will motivate experienced researchers to develop various novel sustainable methods for the synthesis of zeolites and other inorganic materials of industrial relevance.
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Affiliation(s)
- Poonam Rani
- Catalysis Research Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, 140001, Punjab, India.,Present Address: Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Czech Republic
| | - Rajendra Srivastava
- Catalysis Research Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, 140001, Punjab, India
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16
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Srivastava D, Rani P, Srivastava R. ZIF-8-Nanocrystalline Zirconosilicate Integrated Porous Material for the Activation and Utilization of CO 2 in Insertion Reactions. Chem Asian J 2020; 15:1132-1139. [PMID: 32067347 DOI: 10.1002/asia.202000001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 01/30/2020] [Indexed: 11/06/2022]
Abstract
The conversion of CO2 to useful chemicals, especially to atom economical products, is the best approach to utilize an excess of CO2 present in the atmosphere. In this study, a metal-organic framework (ZIF-8) is integrated with nanocrystalline zirconosilicate zeolite to develop an integrated porous catalyst for CO2 insertion reactions. The catalyst exhibits excellent activity for the CO2 insertion reaction of epoxide to produce cyclic carbonate in neat condition without the addition of any co-catalyst. The catalyst is stable and recyclable during the cyclic carbonate synthesis. Further, the catalyst also exhibits very good activity in another CO2 insertion reaction to produce quinazoline-2,4(1H, 3H)-dione.
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Affiliation(s)
- Diksha Srivastava
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, 140001, India
| | - Poonam Rani
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, 140001, India
| | - Rajendra Srivastava
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, 140001, India
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17
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Multi-functional metal-organic framework and metal-organic framework-zeolite nanocomposite for the synthesis of carbohydrate derived chemicals via one-pot cascade reaction. J Colloid Interface Sci 2019; 557:144-155. [DOI: 10.1016/j.jcis.2019.09.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/19/2019] [Accepted: 09/03/2019] [Indexed: 11/22/2022]
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18
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Li W, Sun L, Xie L, Deng X, Guan N, Li L. Coordinatively unsaturated sites in zeolite matrix: Construction and catalysis. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63381-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Styskalik A, Abbott JG, Orick MC, Debecker DP, Barnes CE. Synthesis, characterization and catalytic activity of single site, Lewis acidic aluminosilicates. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.11.079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Multifunctionality in Two Families of Dinuclear Lanthanide(III) Complexes with a Tridentate Schiff-Base Ligand. Inorg Chem 2019; 58:9581-9585. [PMID: 31328505 DOI: 10.1021/acs.inorgchem.9b01524] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The employment of N-(2-carboxyphenyl)salicylideneimine in 4f metal chemistry has led to two families of dinuclear complexes depending on the lanthanide(III) used. Representative members exhibit interesting magnetic, optical, and catalytic properties.
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21
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Li T, Jin L, Zhang W, Miras HN, Song YF. Robust and Environmentally Benign Solid Acid Intercalation Catalysts for the Aminolysis of Epoxides. ChemCatChem 2018. [DOI: 10.1002/cctc.201801119] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tengfei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 P. R. China
| | - Lin Jin
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 P. R. China
| | - Wei Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 P. R. China
| | | | - Yu-Fei Song
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 P. R. China
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22
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Ruthenium-Pincer-Catalyzed Hydrogenation of Lactams to Amino Alcohols. Chem Asian J 2018; 13:2559-2565. [DOI: 10.1002/asia.201800759] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/06/2018] [Indexed: 01/07/2023]
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23
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Synthesis and applications of ordered and disordered mesoporous zeolites: Present and future prospective. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.08.017] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Fallah-Mehrjardi M, Kiasat AR, Niknam K. Nucleophilic ring-opening of epoxides: trends in β-substituted alcohols synthesis. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1400-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Nakhate AV, Yadav GD. Graphene-Oxide-Supported SO3
H-Functionalized Imidazolium-Based Ionic Liquid: Efficient and Recyclable Heterogeneous Catalyst for Alcoholysis and Aminolysis Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201703064] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Akhil V. Nakhate
- Department of Chemical Engineering; Institute of Chemical Technology, Nathalal Parekh Marg, Matunga; Mumbai- 400 019 India
| | - Ganapati D. Yadav
- Department of Chemical Engineering; Institute of Chemical Technology, Nathalal Parekh Marg, Matunga; Mumbai- 400 019 India
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26
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Zhu H, Chen Y, Wang Z, Liu W, Wang L. Catalytic oxidation of CO over mesoporous copper-doped ceria catalysts via a facile CTAB-assisted synthesis. RSC Adv 2018; 8:14888-14897. [PMID: 35541330 PMCID: PMC9079958 DOI: 10.1039/c8ra02327a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 04/05/2018] [Indexed: 11/21/2022] Open
Abstract
Nanosized copper-doped ceria CuCe catalysts with a large surface area and well-developed mesoporosity were synthesized by a surfactant-assisted co-precipitation method. The prepared catalysts with different Cu doping concentrations were characterized by XRD, DLS analysis, TEM, BET, Raman, H2-TPR and in situ DRIFTS techniques. The influence of Cu content on their catalytic performance for CO oxidation was also studied. The XRD results indicate that at a lower content, the Cu partially incorporates into the CeO2 lattice to form a CuCe solid solution, whereas a higher Cu doping causes the formation of bulk CuO. Copper doping favors an increase in the surface area of the CuCe catalysts and the formation of oxygen vacancies, thereby improving the redox properties. The CuCe samples exhibit higher catalytic performance compared to bare CeO2 and CuO catalysts. This is ascribed to the synergistic interaction between copper oxide and ceria. In particular, the Cu0.1Ce catalyst shows the highest catalytic performance (T 50 = 59 °C), as well as excellent stability. The in situ DRIFTS results show that CO adsorbed on surface Cu+ (Cu+-CO species) can easily react with the active oxygen, while stronger adsorption of carbonate-like species causes catalyst deactivation during the reaction.
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Affiliation(s)
- Hongjian Zhu
- School of Resources and Environment, Key Laboratory of Water Resources and Environmental Engineering in Universities of Shandong, University of Jinan 336 Nanxinzhuangxi Road Jinan 250022 PR China
| | - Yingying Chen
- School of Resources and Environment, Key Laboratory of Water Resources and Environmental Engineering in Universities of Shandong, University of Jinan 336 Nanxinzhuangxi Road Jinan 250022 PR China
| | - Zhongpeng Wang
- School of Resources and Environment, Key Laboratory of Water Resources and Environmental Engineering in Universities of Shandong, University of Jinan 336 Nanxinzhuangxi Road Jinan 250022 PR China
| | - Wei Liu
- School of Resources and Environment, Key Laboratory of Water Resources and Environmental Engineering in Universities of Shandong, University of Jinan 336 Nanxinzhuangxi Road Jinan 250022 PR China
| | - Liguo Wang
- School of Resources and Environment, Key Laboratory of Water Resources and Environmental Engineering in Universities of Shandong, University of Jinan 336 Nanxinzhuangxi Road Jinan 250022 PR China
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27
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Rani P, Srivastava R. Exploring the dicationic gemini surfactant for the generation of mesopores: a step towards the construction of a hierarchical metal–organic framework. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00782a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dicationic gemini surfactant cooperatively self-assembles with the Cu-BTC precursors to form a hierarchical microporous–mesoporous metal–organic framework.
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Affiliation(s)
- Poonam Rani
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar-140001
- India
| | - Rajendra Srivastava
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar-140001
- India
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28
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Tang B, Song WC, Li SY, Yang EC, Zhao XJ. Post-synthesis of Zr-MOR as a robust solid acid catalyst for the ring-opening aminolysis of epoxides. NEW J CHEM 2018. [DOI: 10.1039/c8nj02449a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zirconosilicate with the MOR topology (Zr-MOR) was successfully prepared using a two-step post-synthesis strategy from pre-dealumination of a H-MOR zeolite and subsequent dry impregnation of Cp2ZrCl2.
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Affiliation(s)
- Bo Tang
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Tianjin Normal University
- Tianjin 300387
| | - Wei-Chao Song
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Tianjin Normal University
- Tianjin 300387
| | - Sheng-Yang Li
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Tianjin Normal University
- Tianjin 300387
| | - En-Cui Yang
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Tianjin Normal University
- Tianjin 300387
| | - Xiao-Jun Zhao
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Tianjin Normal University
- Tianjin 300387
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29
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Sarmah B, Srivastava R. Octahedral MnO2 Molecular Sieve-Decorated Meso-ZSM-5 Catalyst for Eco-Friendly Synthesis of Pyrazoles and Carbamates. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03993] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bhaskar Sarmah
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Rajendra Srivastava
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
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30
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Sarmah B, Satpati B, Srivastava R. Highly efficient and recyclable basic mesoporous zeolite catalyzed condensation, hydroxylation, and cycloaddition reactions. J Colloid Interface Sci 2017; 493:307-316. [DOI: 10.1016/j.jcis.2017.01.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/09/2017] [Accepted: 01/11/2017] [Indexed: 12/17/2022]
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31
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Rani P, Satpati B, Srivastava R. Natural Template Mediated Sustainable Synthesis of Nanocrystalline Zeolite with Significantly Improved Catalytic Activity. ChemistrySelect 2017. [DOI: 10.1002/slct.201700308] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Poonam Rani
- Department of Chemistry; Indian Institute of Technology Ropar; Rupnagar-140001, Punjab India
| | - Biswarup Satpati
- Surface Physics and Material Science Division; Saha Institute of Nuclear Physics, 1/AF, Bidhannagar; Kolkata 700 064 India
| | - Rajendra Srivastava
- Department of Chemistry; Indian Institute of Technology Ropar; Rupnagar-140001, Punjab India
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32
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Sun Z, Li T, Li G, Zhang Y, Tang Y. Specific microwave effect on Sn- and Ti-MFI zeolite synthesis. RSC Adv 2017. [DOI: 10.1039/c7ra05028c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A specific microwave effect, demonstrated by the differences on Sn- and Ti-MFI zeolite preparation and characterization, provides a new direction for investigating microwave effects.
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Affiliation(s)
- Zhen Sun
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Laboratory of Advanced Materials
- Collaborative Innovation Centre of Chemistry for Energy Materials
- Fudan University
| | - Ting Li
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Laboratory of Advanced Materials
- Collaborative Innovation Centre of Chemistry for Energy Materials
- Fudan University
| | - Gang Li
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Laboratory of Advanced Materials
- Collaborative Innovation Centre of Chemistry for Energy Materials
- Fudan University
| | - Yahong Zhang
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Laboratory of Advanced Materials
- Collaborative Innovation Centre of Chemistry for Energy Materials
- Fudan University
| | - Yi Tang
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Laboratory of Advanced Materials
- Collaborative Innovation Centre of Chemistry for Energy Materials
- Fudan University
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33
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Nakhate AV, Doke SM, Yadav GD. Template Assisted Synthesis of Nanocrystalline Sulfated Titania: Active and Robust Catalyst for Regioselective Ring Opening of Epoxide with Aniline and Kinetic Modeling. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b02619] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Akhil V. Nakhate
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Suresh M. Doke
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Ganapati D. Yadav
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
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34
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Acocella MR, D'Urso L, Maggio M, Guerra G. Green Regio- and Enantioselective Aminolysis Catalyzed by Graphite and Graphene Oxide under Solvent-Free Conditions. ChemCatChem 2016. [DOI: 10.1002/cctc.201600241] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maria Rosaria Acocella
- Department of Chemistry and Biology; University of Salerno; Via Giovanni Paolo II 132 Fisciano SA Italy
| | - Luciana D'Urso
- Department of Chemistry and Biology; University of Salerno; Via Giovanni Paolo II 132 Fisciano SA Italy
| | - Mario Maggio
- Department of Chemistry and Biology; University of Salerno; Via Giovanni Paolo II 132 Fisciano SA Italy
| | - Gaetano Guerra
- Department of Chemistry and Biology; University of Salerno; Via Giovanni Paolo II 132 Fisciano SA Italy
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35
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Sarmah B, Srivastava R, Satpati B. Highly Efficient Silver Nanoparticles Supported Nanocrystalline Zirconosilicate Catalyst for the Epoxidation and Hydration Reactions. ChemistrySelect 2016. [DOI: 10.1002/slct.201600132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bhaskar Sarmah
- Department of Chemistry; Indian Institute of Technology Ropar; Rupnagar-140001 Punjab India
| | - Rajendra Srivastava
- Department of Chemistry; Indian Institute of Technology Ropar; Rupnagar-140001 Punjab India
| | - Biswarup Satpati
- Surface Physics Division; Saha Institute of Nuclear Physics; 1/AF, Bidhannagar Kolkata 700 064 India
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36
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Skoda D, Styskalik A, Moravec Z, Bezdicka P, Bursik J, Mutin PH, Pinkas J. Mesoporous SnO2–SiO2 and Sn–silica–carbon nanocomposites by novel non-hydrolytic templated sol–gel synthesis. RSC Adv 2016. [DOI: 10.1039/c6ra16556g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel non-hydrolytic sol–gel (NHSG) synthesis of mesoporous tin silicate xerogels is presented.
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Affiliation(s)
- David Skoda
- Masaryk University
- Department of Chemistry
- CZ-61137 Brno
- Czech Republic
- Masaryk University
| | - Ales Styskalik
- Masaryk University
- Department of Chemistry
- CZ-61137 Brno
- Czech Republic
- Masaryk University
| | - Zdenek Moravec
- Masaryk University
- Department of Chemistry
- CZ-61137 Brno
- Czech Republic
| | - Petr Bezdicka
- Institute of Inorganic Chemistry ASCR
- CZ-25068 Husinec-Rez
- Czech Republic
| | - Jiri Bursik
- Institute of Physics of Materials ASCR
- CZ-616 62 Brno
- Czech Republic
| | - P. Hubert Mutin
- Institut Charles Gerhardt UMR 5253 CNRS-UM-ENSCM
- Université de Montpellier
- 34095 Montpellier Cedex 05
- France
| | - Jiri Pinkas
- Masaryk University
- Department of Chemistry
- CZ-61137 Brno
- Czech Republic
- Masaryk University
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37
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Skoda D, Styskalik A, Moravec Z, Bezdicka P, Babiak M, Klementova M, Barnes CE, Pinkas J. Novel non-hydrolytic templated sol–gel synthesis of mesoporous aluminosilicates and their use as aminolysis catalysts. RSC Adv 2016. [DOI: 10.1039/c5ra24563j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel non-hydrolytic sol–gel (NHSG) synthesis of mesoporous aluminosilicate xerogels is presented.
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Affiliation(s)
- David Skoda
- Department of Chemistry
- Masaryk University
- CZ-61137 Brno
- Czech Republic
- CEITEC MU
| | - Ales Styskalik
- Department of Chemistry
- Masaryk University
- CZ-61137 Brno
- Czech Republic
- CEITEC MU
| | - Zdenek Moravec
- Department of Chemistry
- Masaryk University
- CZ-61137 Brno
- Czech Republic
| | - Petr Bezdicka
- Institute of Inorganic Chemistry of the ASCR, v.v.i
- CZ-25068 Husinec-Rez
- Czech Republic
| | - Michal Babiak
- Department of Chemistry
- Masaryk University
- CZ-61137 Brno
- Czech Republic
- CEITEC MU
| | - Mariana Klementova
- Institute of Inorganic Chemistry of the ASCR, v.v.i
- CZ-25068 Husinec-Rez
- Czech Republic
| | | | - Jiri Pinkas
- Department of Chemistry
- Masaryk University
- CZ-61137 Brno
- Czech Republic
- CEITEC MU
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38
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Sarmah B, Satpati B, Srivastava R. Cu ion-exchanged and Cu nanoparticles decorated mesoporous ZSM-5 catalysts for the activation and utilization of phenylacetylene in a sustainable chemical synthesis. RSC Adv 2016. [DOI: 10.1039/c6ra19606c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Highly dispersed Cu nanoparticles supported on the large external surface of Meso-ZSM-5 exhibited excellent activity in the selective synthesis of indolizines, chalcones, and triazoles using phenylacetylene as one of the building blocks.
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Affiliation(s)
- Bhaskar Sarmah
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar-140001
- India
| | - Biswarup Satpati
- Surface Physics and Material Science Division
- Saha Institute of Nuclear Physics
- Kolkata 700 064
- India
| | - Rajendra Srivastava
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar-140001
- India
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39
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Shinde SS, Said MS, Surwase TB, Kumar P. Mild regiospecific alcoholysis and aminolysis of epoxides catalyzed by zirconium(IV) oxynitrate. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Dalui A, Pradhan B, Thupakula U, Khan AH, Kumar GS, Ghosh T, Satpati B, Acharya S. Insight into the mechanism revealing the peroxidase mimetic catalytic activity of quaternary CuZnFeS nanocrystals: colorimetric biosensing of hydrogen peroxide and glucose. NANOSCALE 2015; 7:9062-9074. [PMID: 25921601 DOI: 10.1039/c5nr01728a] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Artificial enzyme mimetics have attracted immense interest recently because natural enzymes undergo easy denaturation under environmental conditions restricting practical usefulness. We report for the first time chalcopyrite CuZnFeS (CZIS) alloyed nanocrystals (NCs) as novel biomimetic catalysts with efficient intrinsic peroxidase-like activity. Novel peroxidase activities of CZIS NCs have been evaluated by catalytic oxidation of the peroxidase substrate 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). CZIS NCs demonstrate the synergistic effect of elemental composition and photoactivity towards peroxidase-like activity. The quaternary CZIS NCs show enhanced intrinsic peroxidase-like activity compared to the binary NCs with the same constituent elements. Intrinsic peroxidase-like activity has been correlated with the energy band position of CZIS NCs extracted using scanning tunneling spectroscopy and ultraviolet photoelectron spectroscopy. Kinetic analyses indicate Michaelis-Menten enzyme kinetic model catalytic behavior describing the rate of the enzymatic reaction by correlating the reaction rate with substrate concentration. Typical color reactions arising from the catalytic oxidation of TMB over CZIS NCs with H2O2 have been utilized to establish a simple and sensitive colorimetric assay for detection of H2O2 and glucose. CZIS NCs are recyclable catalysts showing high efficiency in multiple uses. Our study may open up the possibility of designing new photoactive multi-component alloyed NCs as enzyme mimetics in biotechnology applications.
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Affiliation(s)
- Amit Dalui
- Centre for Advanced Materials, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
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41
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Kaur B, Srivastava R, Satpati B. Nanocrystalline Titanosilicate-Acetylcholinesterase Electrochemical Biosensor for the Ultra-Trace Detection of Toxic Organophosphate Pesticides. ChemElectroChem 2015. [DOI: 10.1002/celc.201500095] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Coman SM, Parvulescu VI. Nonprecious Metals Catalyzing Hydroamination and C–N Coupling Reactions. Org Process Res Dev 2015. [DOI: 10.1021/acs.oprd.5b00010] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Simona M. Coman
- Department of Organic Chemistry,
Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, Bdul Regina Elisabeta 4-12, Bucharest 030016, Romania
| | - Vasile I. Parvulescu
- Department of Organic Chemistry,
Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, Bdul Regina Elisabeta 4-12, Bucharest 030016, Romania
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43
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Dalui A, Thupakula U, Khan AH, Ghosh T, Satpati B, Acharya S. Mechanism of versatile catalytic activities of quaternary CuZnFeS nanocrystals designed by a rapid synthesis route. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:1829-1839. [PMID: 25504671 DOI: 10.1002/smll.201402837] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Indexed: 06/04/2023]
Abstract
Quaternary alloyed nanocrystals (NCs) composed of earth abundant, environment friendly elements are of interest for energy-harvesting applications. These complex NCs are useful as catalysts for the degradation of multiple refractory organic pollutants as well as nitro-organic reduction at a rapid rate. Here, a remarkably fast (∼30 s) and facile synthesis of crystalline quaternary chalcopyrite copper-zinc-iron-sulfide (CZIS) NCs is reported. These NCs show excellent catalytic properties by degrading a number of refractory organic dyes and converting nitro-compounds at a rapid rate. The valence and conduction band information of the newly designed NCs are extracted using scanning tunneling spectroscopy and ultraviolet photoelectron spectroscopy, which reveal energy levels suitable for performing redox chemistry by generating reactive radicals establishing NCs as efficient catalyst with multiple uses. Rapid synthesis of high quality phase-controlled CZIS NCs with robust catalytic activities could be useful for organic waste treatment.
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Affiliation(s)
- Amit Dalui
- Centre for Advanced Materials, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
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44
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GHOSH T, BARDHAN M, BHATTACHARYA M, SATPATI B. Study of inelastic mean free path of metal nanostructures using energy filtered transmission electron microscopy imaging. J Microsc 2015; 258:253-8. [DOI: 10.1111/jmi.12240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 02/07/2015] [Indexed: 11/26/2022]
Affiliation(s)
- T. GHOSH
- Saha Institute of Nuclear Physics; Kolkata 700064 India
| | - M. BARDHAN
- Saha Institute of Nuclear Physics; Kolkata 700064 India
| | | | - B. SATPATI
- Saha Institute of Nuclear Physics; Kolkata 700064 India
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45
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Srivastava R, Sarmah B, Satpati B. Nanocrystalline ZSM-5 based bi-functional catalyst for two step and three step tandem reactions. RSC Adv 2015. [DOI: 10.1039/c4ra16697c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pd/Nano-ZSM-5 bi-functional catalyst was prepared for one-pot tandem reactions for the synthesis of 1,3-diphenyl-3-(phenylamino)propan-1-one, (E)-chalcone, and 2,3-dihydro-1,5-benzothiazepine.
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Affiliation(s)
- Rajendra Srivastava
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar-140001
- India
| | - Bhaskar Sarmah
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar-140001
- India
| | - Biswarup Satpati
- Surface Physics and Material Science Division
- Saha Institute of Nuclear Physics
- Kolkata 700 064
- India
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46
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Dalui A, Khan AH, Pradhan B, Pradhan J, Satpati B, Acharya S. Facile synthesis of composition and morphology modulated quaternary CuZnFeS colloidal nanocrystals for photovoltaic application. RSC Adv 2015. [DOI: 10.1039/c5ra18157g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Quaternary semiconductor CuZnFeS nanocrystals with controlled size, shape and composition have been successfully synthesized and utilized to fabricate photovoltaic and photosensitive devices.
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Affiliation(s)
- Amit Dalui
- Centre for Advanced Materials
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Ali Hossain Khan
- Centre for Advanced Materials
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Bapi Pradhan
- Centre for Advanced Materials
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Jayita Pradhan
- Centre for Advanced Materials
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Biswarup Satpati
- Surface Physics and Material Science Division
- Saha Institute of Nuclear Physics
- Kolkata 700064
- India
| | - Somobrata Acharya
- Centre for Advanced Materials
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
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47
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Rani P, Srivastava R. Nucleophilic addition of amines, alcohols, and thiophenol with epoxide/olefin using highly efficient zirconium metal organic framework heterogeneous catalyst. RSC Adv 2015. [DOI: 10.1039/c5ra00921a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Zr based MOF exhibited excellent activity in the ring opening of epoxides/nucleophilic addition of activated olefins with wide range of nucleophiles.
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Affiliation(s)
- Poonam Rani
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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48
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Bali S, Leisen J, Foo GS, Sievers C, Jones CW. Aminosilanes grafted to basic alumina as CO2 adsorbents--role of grafting conditions on CO2 adsorption properties. CHEMSUSCHEM 2014; 7:3145-3156. [PMID: 25179814 DOI: 10.1002/cssc.201402373] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 06/30/2014] [Indexed: 06/03/2023]
Abstract
Solid oxide-supported amine sorbents for CO2 capture are amongst the most rapidly developing classes of sorbent materials for CO2 capture. Herein, basic γ supports are used as hosts for amine sites through the grafting of 3-aminopropyltrimethoxysilane to the alumina surface under a variety of conditions, yielding the expected surface-grafted alkylamine groups, as demonstrated by FTIR spectroscopy and (29)Si and (13)C cross-polarization magic-angle spinning (CPMAS NMR) spectroscopy. Grafting amine sites on the surface in the presence of water leads to a high density of amine sites on the surface whereas simultaneously creating a unique type of aluminum species on the surface, as demonstrated by both 1D and 2D (27)Al MAS NMR spectroscopy. The thus prepared sorbents result in higher CO2 adsorption capacities and amine efficiencies compared to sorbents prepared in the absence of water or similar amine loading sorbents prepared using silica supports. In situ FTIR spectra of the sorbents exposed to CO2 at various pressures show no distinct difference in the nature of the adsorbed CO2 species on alumina- versus silica-supported amines, whereas water adsorption isotherms show that the improved performance of the amine-grafted alumina support is not a consequence of retained water on the more hydrophobic aminoalumina materials. The findings demonstrate that amine-grafted, basic alumina materials can be tuned to be more efficient than the corresponding silica-supported materials at comparable amine loadings, further demonstrating that the properties of amine sites can be tuned by controlling or adjusting the support surface properties.
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Affiliation(s)
- Sumit Bali
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, NW, Atlanta, GA, 30332 (USA)
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49
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Kaur B, Srivastava R. Simultaneous electrochemical determination of nanomolar concentrations of aminophenol isomers using nanocrystalline zirconosilicate modified carbon paste electrode. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.07.049] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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50
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Tang B, Dai W, Wu G, Guan N, Li L, Hunger M. Improved Postsynthesis Strategy to Sn-Beta Zeolites as Lewis Acid Catalysts for the Ring-Opening Hydration of Epoxides. ACS Catal 2014. [DOI: 10.1021/cs500891s] [Citation(s) in RCA: 193] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bo Tang
- Key
Laboratory of Advanced Energy Materials Chemistry (Ministry of Education),
College of Chemistry, Nankai University, No. 94 Weijin Road, Tianjin 300071, People’s Republic China
| | - Weili Dai
- Key
Laboratory of Advanced Energy Materials Chemistry (Ministry of Education),
College of Chemistry, Nankai University, No. 94 Weijin Road, Tianjin 300071, People’s Republic China
| | - Guangjun Wu
- Key
Laboratory of Advanced Energy Materials Chemistry (Ministry of Education),
College of Chemistry, Nankai University, No. 94 Weijin Road, Tianjin 300071, People’s Republic China
| | - Naijia Guan
- Key
Laboratory of Advanced Energy Materials Chemistry (Ministry of Education),
College of Chemistry, Nankai University, No. 94 Weijin Road, Tianjin 300071, People’s Republic China
| | - Landong Li
- Key
Laboratory of Advanced Energy Materials Chemistry (Ministry of Education),
College of Chemistry, Nankai University, No. 94 Weijin Road, Tianjin 300071, People’s Republic China
| | - Michael Hunger
- Institute
of Chemical Technology, University of Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart, Germany
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