1
|
Potangale CN, Pardeshi SK. Effect of Ni2+ substitution on structural, magnetic and electrical traits of Ba1-xNixFe2O4. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
2
|
Rawat S, Misra N, Meena SS, Shelkar SS, Kumar N N, Goel NK, Kumar V. Plasma polymerized functional supermagnetic Fe 3O 4 nanostructured templates for laccase immobilization: A robust catalytic system for bio-inspired dye degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82524-82540. [PMID: 35752670 DOI: 10.1007/s11356-022-21539-6] [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: 04/21/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Fe3O4 magnetic nanoparticles, synthesized using co-precipitation method, were epoxy functionalized via plasma polymerization of 2,3-epoxypropylmethacrylate (EPMA) precursor. The EPMA-functionalized Fe3O4 nanoparticles (EPMA-f-MN) were employed as templates for facile, one-step covalent immobilization of laccase enzyme at room temperature. Samples were rigorously characterized by FTIR, TGA, SEM, TEM, XRD techniques, while Mössbauer spectroscopy (MöS) and vibrating sample magnetometry (VSM) confirmed the supermagnetic nature of Fe3O4 nanoparticles. Activities of free and immobilized laccase (ImLac) were assayed by spectrophotometrically monitoring the enzymatic reduction of substrate 2,2-azino-bis(3-ethylthiazoline-6-sulfonate) (ABTS) at 420 nm, corresponding to the λmax of ABTS.+. In addition to possessing higher thermal stability and a broader pH tolerance window compared to free laccase, the supermagnetic property of the Fe3O4 renders the ImLac system conveniently recoverable and recyclable. Practical applicability of ImLac towards catalytic degradation of industrial dyes was also ably demonstrated using Acid Blue 193 (AB 193) as a commercially used model textile dye, which belongs to the family of azo dyes. Over 95% degradation of the dye was achieved within a period of 4 hours. ImLac could be used for more than 10 dye degradation cycles with >90 % of retention in enzyme activity.
Collapse
Affiliation(s)
- Swarnima Rawat
- Radiation Technology Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Nilanjal Misra
- Radiation Technology Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Sher Singh Meena
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Shubhangi S Shelkar
- Radiation Technology Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Naveen Kumar N
- Materials Science Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Narender Kumar Goel
- Radiation Technology Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Virendra Kumar
- Radiation Technology Development Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India.
| |
Collapse
|
3
|
Syntheses, spectroscopic, structural characterization of Co(III) and Co(II) carboxylates and electron transfer reactions with ferrocene derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
4
|
D'souza LR, Gaonkar SK, Harmalkar SS, Asogekar PA, Furtado I, Dhuri SN. A Water‐Rich Cobalt(II) Compound: Hydrothermal Synthesis, Spectroscopic, Thermal, Crystal Structure Characterization and Antimicrobial Properties. ChemistrySelect 2021. [DOI: 10.1002/slct.202003878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Luann R. D'souza
- School of Chemical Sciences Goa University Taleigao Plateau Goa 403 206 India
| | - Sanket K. Gaonkar
- Department of Microbiology Goa University Taleigao Plateau Goa 403 206 India
| | | | - Pratik A. Asogekar
- School of Chemical Sciences Goa University Taleigao Plateau Goa 403 206 India
| | - Irene Furtado
- Department of Microbiology Goa University Taleigao Plateau Goa 403 206 India
| | - Sunder N. Dhuri
- School of Chemical Sciences Goa University Taleigao Plateau Goa 403 206 India
| |
Collapse
|
5
|
Tatarchuk T, Bououdina M, Judith Vijaya J, John Kennedy L. Spinel Ferrite Nanoparticles: Synthesis, Crystal Structure, Properties, and Perspective Applications. SPRINGER PROCEEDINGS IN PHYSICS 2017. [DOI: 10.1007/978-3-319-56422-7_22] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|