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Chowdhury B, Mehebub Rahaman S, Ghosh A, Mahali K, Sar P, Saha B. Synergistic reinforcement of CPC/TX-100 mixed micellar microenvironment for diperiodatocuprate(III) (DPC) oxidation of 1-propanol and 1,3-propanediol. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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The Catalytic Influence of Polymers and Surfactants on the Rate Constants of Reaction of Maltose with Cerium (IV) in Acidic Aqueous Medium. J CHEM-NY 2022. [DOI: 10.1155/2022/2609478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Kinetics of the reaction of maltose with cerium ammonium sulfate were analyzed spectrophotometrically by observing the decrease of the absorbance of cerium (IV) at 385 nm in the presence and absence of polyethylene glycols (600, 1500, and 4000) and polyvinylpyrrolidone (PVP), in addition to anionic micelles of sodium dodecyl sulfate (SDS), cationic micelles of cetyltrimethylammonium bromide (CTAB) and non-ionic micelles of Tween 20 surfactants. Generally, there is little literature about using the polymers (PEGs and PVP) as catalysts in the oxidation-reduction reactions. Therefore, the major target of this work was to investigate the influence of the nature of polymers and surfactants on the oxidation rates of maltose by cerium (IV) in acidic aqueous media, as well as employing the Piszkiewicz model to explain the catalytic effect. The kinetic runs were derived by adaptation of the pseudo first-order reaction conditions with respect to the cerium (IV). The reaction was found to be first-order with respect to the oxidant and fractional-order to maltose and H2SO4. The reaction rates were enhanced in the presence of polymer and micellar catalysis. Indeed, the surfactants were found to work perfectly close to their critical micelle concentrations (CMC). Electrostatic interaction and H-bonding appear to play an influential role in binding maltose molecules to polymer/surfactant micelles, while oxidant ions remain at the periphery of the Stern layer within the micelle.
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Lisuzzo L, Cavallaro G, Milioto S, Lazzara G. Halloysite nanotubes as nanoreactors for heterogeneous micellar catalysis. J Colloid Interface Sci 2022; 608:424-434. [PMID: 34626986 DOI: 10.1016/j.jcis.2021.09.146] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 02/08/2023]
Abstract
HYPOTHESIS Electrostatic attractions between the anionic head group of sodium alkylsulphates and the positively charged inner surface of halloysite nanotubes (HNTs) drive to the formation of tubular inorganic micelles, which might be employed as nanoreactors for the confinement of non polar compounds in aqueous media. On this basis, sodium alkylsulphates/halloysite hybrids could be efficient nanocatalysts for organic reactions occurring in water. EXPERIMENTS Sodium decylsulphate (NaDeS) and sodium dodecylsulphate (NaDS) were selected for the functionalization of the halloysite cavity. The composition, the structure and the surface charge properties of the hybrid nanotubes were determined. The actual formation of inorganic micelles was explored by studying the microviscosity and polarity characteristics of the surfactant modified nanotubes through fluorescence spectroscopy experiments using DiPyme as probe. The performances of the sodium alkylsulphates/halloysite composites as micellar catalysts for the Belousov-Zhabotinsky (BZ) reaction were investigated. FINDINGS The halloysite functionalization with sodium alkylsulphates generated the formation of hydrophobic microdomains with an enhanced microviscosity. Compared to the surfactant conventional micelles, the functionalized nanotubes induced larger enhancements on the rate constant of the BZ reaction. This is the first report on the surfactant/halloysite hybrids showing their efficiencies as reusable nanocatalysts, which are dependent on their peculiar microviscosity and polarity properties.
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Affiliation(s)
- Lorenzo Lisuzzo
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
| | - Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy.
| | - Stefana Milioto
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
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Chowdhury B, Sar P, Kumar D, Saha B. Advancement of Cu(III) and Fe(III) directed oxidative transformations: Recent impact of aqueous micellar environment. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117993] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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The effect of mixed sodium dodecyl sulfate–polyethylene glycol systems on kinetic of oxidation of o-Cresol by cerium(IV) in H2SO4 medium. Colloid Polym Sci 2022. [DOI: 10.1007/s00396-022-04940-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Oxidation of triethanolamine by ceric ammonium sulfate in aqueous sulfuric acid: spectrophotometric kinetic and mechanistic study. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02874-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Sayahi MH, Shamkhani F, Mahdavi M, Bahadorikhalili S. Efficient synthesis of chromeno[4,3-b]pyrano[3,4-e]pyridine-6,8-dione derivatives via multicomponent one-pot reaction under mild reaction conditions in water. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04519-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Acharjee A, Rakshit A, Chowdhury S, Saha B. Micellar and Transition Metal Ion Catalysed Oxidation of Pentanol in Aqueous Medium. TENSIDE SURFACT DET 2021. [DOI: 10.3139/113.110709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Micelles and 4d- or 5d-transition metal ions have been proved to be effective catalysts for the oxidation of 1-pentanol by Ce(IV) in aqueous medium under pseudo 1st order reaction conditions at 258C. Although cationic micelles show a speed retarding effect, anionic SDS micelles accelerate the reaction rate. The Ir(III) and Ru(III) catalysed reactions show shorter half-lives at micromolar concentration. Active Ce(IV) species are also identified and an explanation of the different catalytic activities of metal ions and micelles is presented. The accumulation of the substrate in the Stern-layer of the SDS micelles is detected. The reaction product is confirmed by melting point analysis, a 2,4-DNP test, and by IR and NMR studies.
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Affiliation(s)
- Animesh Acharjee
- Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, West Bengal, India
- Department of Chemistry, Hooghly Mohsin College, Chinsurah 712101, West Bengal, India
| | - Atanu Rakshit
- Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, West Bengal, India
| | - Suman Chowdhury
- Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, West Bengal, India
| | - Bidyut Saha
- Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, West Bengal, India
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Kinetics of oxidation of antidiabetic drug metformin hydrochloride by vanadium(V) in acidic and micellar medium. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03664-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Potential application of Micellar nanoreactor for electron transfer reactions mediated by a variety of oxidants: A review. Adv Colloid Interface Sci 2020; 284:102241. [PMID: 32927360 DOI: 10.1016/j.cis.2020.102241] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 01/31/2023]
Abstract
Surfactant, either natural or synthetic, forms a different type of aggregates among which 'Micelle' is truly an important dynamic surfactant aggregate, having a different region to interact with several organic, inorganic, and biomolecules; therefore the practical use of micelle is rapidly growing day-to-day. Surfactant-micelle, looks like a reactor of nano-dimension, govern a variety of reactions in aqueous media extensively. Oxidation is one of the vital reaction, take a part in the course of several organic transformations which are not very easy to execute in water media alone due to the solubility problem. Moreover, in order to achieve a quick transformation overcoming several difficulties the utility of micellar media became an excellent innovation, that's why nowadays, the surfactant and its aggregates are a focus of interest to the researcher of synthetic field and thus its practical applicability has been tremendously cultivated over the few decades. It is, therefore, useful to introduce some basic concepts regarding the aggregation of surfactants. Subsequently, we emphasize the importance of micellar media on the kinetics of oxidation reactions mediated by several metal ions with a special emphasis on their catalytic role.
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Sar P, Ghosh A, Scarso A, Saha B. Surfactant for better tomorrow: applied aspect of surfactant aggregates from laboratory to industry. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04017-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Synthesis of 2-(ethynyloxy)naphthaene-1-carbaldehyde using 2-hydroxy benzyl alcohol and propargyl bromide in aqueous micellar media. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3221-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mandal S, Mandal S, Ghosh SK, Ghosh A, Saha R, Banerjee S, Saha B. Review of the aldol reaction. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1206938] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Swagata Mandal
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
| | - Sangita Mandal
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
| | - Sumanta K. Ghosh
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
| | - Aniruddha Ghosh
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
| | - Rumpa Saha
- Department of Chemistry, TDB College Raniganj, Raniganj, India
| | | | - Bidyut Saha
- Homogeneous Catalysis Laboratory, Department of Chemistry, University of Burdwan, Golapbag, Burdwan, India
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Ghosh A, Datta I, Ghatak S, Mahali K, Bhattacharyya SS, Saha B. Picolinic Acid Promoted Permanganate Oxidation of D-Mannitol in Micellar Medium. TENSIDE SURFACT DET 2016. [DOI: 10.3139/113.110440] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AbstractKinetics of permanganate oxidation of D-mannitol have been investigated spectrophotometrically under pseudo-first-order conditions in aqueous acidic media at 30 °C. The spectral analysis of hydrazone derivative of the product indicates the product to be an aldehyde. The observed rate constant value was found to be relatively slow in the uncatalyzed path, which increases by the presence of four isomeric promoters: 2-picolinic acid (2-PA), 4-picolinic acid (4-PA), 2,3-dipicolinic acid (2,3-diPA) and 2,6-dipicolinic acid (2,6-diPA). The catalytic effect of sodium dodecylbenzene sulfonate (SDBS) surfactant on the permanganate oxidation of D-mannitol has been also studied in the presence of the promoters. The critical micelle concentration (CMC) of SDBS alone and in presence of D-mannitol was determined by conductometry and spectrophotometry. The aggregation and morphological changes during reaction were studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The variation of the reaction rates for the different promoters in the presence and absence of SDBS micellar catalyst is discussed qualitatively in the terms of partitioning nature of substrate, charge of surfactant and reactants. 2,3-diPA in association with SDBS as micellar catalyst accelerated the reaction velocity compared to the uncatalyzed path.
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Affiliation(s)
- Aniruddha Ghosh
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
| | - Indukamal Datta
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
| | - Somasree Ghatak
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
| | - Kalachand Mahali
- 2Department of Chemistry, University of Kalyani, Kalyani, 741235, WB, India
| | - Subhendu Sekhar Bhattacharyya
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
| | - Bidyut Saha
- 1Homogeneous Catalysis Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713104, WB, India
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