Cobalt Chromate Nanoparticles Embedded in a Poly(vinylidene fluoride) Membrane for the Piezocatalytic Wastewater Remediation DOI

Indrajit Mondal,

Piyali Halder,

Neelanjana Bag

и другие.

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(22), С. 26248 - 26266

Опубликована: Ноя. 6, 2024

Herein, we first report an eco-friendly and easily retrievable piezo-responsive membrane fabricated by encapsulating chemically synthesized cobalt chromate quantum dots (CCOQDs) at varying concentrations (0%, 10%, 20%) in poly(vinylidene fluoride) (PVDF) using a facile solution-casting method. The with 10% CCOQDs (PCCO 10) exhibited high β-phase fraction (75.93%), significant dielectric constant (56.22) notable piezo-coefficient (d33= 65.1 pC/N), demonstrating strong piezocatalytic activity. It effectively generated reactive oxygen species (ROS), which reacted dye solutions, leading to 98.7% congo red (CR), 89.9% methylene blue (MB), 87% mixed (1:1 of CR MB) degradation within 50 min soft ultrasonic stimulation, primarily due •OH radicals, as confirmed scavenger trapping experiments. Additionally, the removed 81.98% total organic carbon (TOC) 75 min. Optimization alkaline pH solution, 60 W power, 1 ppm concentration enhanced its catalytic efficiency, selectivity, stability. Real-world testing on drinking wastewater showed efficiencies 94.65% 98.31%, highlighting versatility for industrial household applications. flexible PCCO 10 also demonstrated excellent reusability (97.2% efficiency after four cycles) maintained structural integrity under low-frequency such centrifugation, vortexing, stirring, confirming activity degradation. Furthermore, products were identified LC-MS technique. Also, pot study established that these molecules have no phytotoxic effects neem (Azadirachta indica) plants. Hence, this multifunctional free-standing holds promising potential alternative sustainable treatment.

Язык: Английский

Te4+ and Er3+ doped ZrO2 nanoparticles with enhanced photocatalytic, antibacterial activity and dielectric properties: A next generation of multifunctional material DOI

Piyali Halder,

Indrajit Mondal,

Anwesha Mukherjee

и другие.

Journal of Environmental Management, Год журнала: 2024, Номер 359, С. 120985 - 120985

Опубликована: Апрель 26, 2024

Язык: Английский

Процитировано

13

Enhanced photocatalytic degradation activity of SrCeO3 nanophosphors: Aloe vera gel-mediated synthesis and UV light-driven eradication of Titan Yellow dye DOI

Sanjay S. Majani,

R.B. Basavaraj,

Muzaffar Iqbal

и другие.

Optical Materials, Год журнала: 2025, Номер 162, С. 116900 - 116900

Опубликована: Март 5, 2025

Язык: Английский

Процитировано

1

Optimizing phosphorene nanosheets for high performance all-solid asymmetric supercapacitors: A theoretical and experimental insight DOI

P. Halder,

Indranil Mondal, Manab Kundu

и другие.

Journal of Energy Storage, Год журнала: 2024, Номер 94, С. 112451 - 112451

Опубликована: Июнь 13, 2024

Язык: Английский

Процитировано

5

Detailed Mechanistic Insights into Photocatalytic Dye Degradation via Electronic and Agricultural Waste Derived Catalysts DOI

Swagata Pal,

Dhanya Vishnu

Chemical Engineering and Processing - Process Intensification, Год журнала: 2024, Номер unknown, С. 110046 - 110046

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

4

Impact of Mg substitution in LaMnO3 manganites on their structural integrity and magnetic behavior DOI Creative Commons
Parvathy Namboothiri,

K. J. Vishnumaya,

Phuong V. Pham

и другие.

RSC Advances, Год журнала: 2025, Номер 15(11), С. 8561 - 8571

Опубликована: Янв. 1, 2025

In this study, we investigated the impact of Mg substitution at La site in LaMnO3 on its structural, chemical, and magnetic properties. To explore effects doping, synthesized a series compositions, La1-x x MnO3 (x = 0.05, 0.1, 0.15, 0.2, 0.3, 0.33), using conventional solid-state method systematically their structural X-Ray diffraction patterns confirmed formation pure rhombohedral crystal structure for samples up to 0.15. However, compositions with > emergence secondary phase, MgMn2O4 spinel structure, was observed alongside primary phase. Furthermore, it that phase increases increasing concentration. The temperature variations studies, measured under zero-field-cooled (ZFC) field-cooled (FC) conditions, transition temperatures all were found be below 200 K, these decrease content. Negative magnetization low-temperature ZFC curves indicating difference temperature-dependent due presence two different phases. This effect became more prominent increase MgMn2O4. studies revealed co-existence ferromagnetic ferrimagnetic ordering 0.15 samples, while retained < which further corroborated by isothermal hysteresis results.

Язык: Английский

Процитировано

0

Advanced Perovskite Photocatalysts: Synthesis, Characterization, and Performance of Sm & Fe-Doped LaCrO3@r-GO for Water Purification DOI
Amira Alazmi

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0

Al-based metal-organic framework for piezocatalytic hydrogen peroxide production: Efficiency, pathway, and mechanism DOI

Jiawei Huang,

Haojie Dong,

Lin An

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 504, С. 158555 - 158555

Опубликована: Дек. 12, 2024

Язык: Английский

Процитировано

1

Modulating Optical and Electrical Properties of Chemically Synthesized ZnMn2O4 Nanoparticles Through Crystallinity: Integrating Theoretical and Experimental Insights DOI

Souvik Sau,

Indrajit Mondal,

Biplab Kumar Paul

и другие.

Ceramics International, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

0

ZrO2 Nanoparticle Embedded Reusable and Self-standing Biopolymeric Membrane for Efficient Piezodynamic Eradication of Gram-Positive and Gram-Negative Coliform Bacteria DOI

Piyali Halder,

Indrajit Mondal,

Neelanjana Bag

и другие.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер unknown, С. 135546 - 135546

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

0

Cobalt Chromate Nanoparticles Embedded in a Poly(vinylidene fluoride) Membrane for the Piezocatalytic Wastewater Remediation DOI

Indrajit Mondal,

Piyali Halder,

Neelanjana Bag

и другие.

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(22), С. 26248 - 26266

Опубликована: Ноя. 6, 2024

Herein, we first report an eco-friendly and easily retrievable piezo-responsive membrane fabricated by encapsulating chemically synthesized cobalt chromate quantum dots (CCOQDs) at varying concentrations (0%, 10%, 20%) in poly(vinylidene fluoride) (PVDF) using a facile solution-casting method. The with 10% CCOQDs (PCCO 10) exhibited high β-phase fraction (75.93%), significant dielectric constant (56.22) notable piezo-coefficient (d33= 65.1 pC/N), demonstrating strong piezocatalytic activity. It effectively generated reactive oxygen species (ROS), which reacted dye solutions, leading to 98.7% congo red (CR), 89.9% methylene blue (MB), 87% mixed (1:1 of CR MB) degradation within 50 min soft ultrasonic stimulation, primarily due •OH radicals, as confirmed scavenger trapping experiments. Additionally, the removed 81.98% total organic carbon (TOC) 75 min. Optimization alkaline pH solution, 60 W power, 1 ppm concentration enhanced its catalytic efficiency, selectivity, stability. Real-world testing on drinking wastewater showed efficiencies 94.65% 98.31%, highlighting versatility for industrial household applications. flexible PCCO 10 also demonstrated excellent reusability (97.2% efficiency after four cycles) maintained structural integrity under low-frequency such centrifugation, vortexing, stirring, confirming activity degradation. Furthermore, products were identified LC-MS technique. Also, pot study established that these molecules have no phytotoxic effects neem (Azadirachta indica) plants. Hence, this multifunctional free-standing holds promising potential alternative sustainable treatment.

Язык: Английский

Процитировано

0