Highly Efficient Biomass Derived Carbon Quantum Dots as Metal Free Green Photocatalyst for Degradation of Dyes DOI

Anita B. Padasalagi,

M.K. Rabinal

Particle & Particle Systems Characterization, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

Abstract The demand for wastewater treatment a sustainable future has provoked the development of an ecologically acceptable photocatalytic approach. However, exploration highly efficient green metal free catalyst dye degradation under normal light is yet challenging. In this work, prepared sericin derived carbon quantum dots (CQDs) are presented as photocatalyst well‐known hazardous dyes namely crystal violet and Rhodamine‐B light. Using several radical scavenging agents, mechanism involved in activity CQDs demonstrated. This novel offers well alternative mineralization organic with good efficiency.

Language: Английский

Trends in photocatalytic degradation of organic dye pollutants using nanoparticles: A review DOI
Muhammad Farooque Lanjwani, Mustafa Tüzen, Muhammad Yar Khuhawar

et al.

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 159, P. 111613 - 111613

Published: Oct. 24, 2023

Language: Английский

Citations

185

Biosynthesis and characterization of iron oxide nanoparticles fabricated using cell-free supernatant of Pseudomonas fluorescens for antibacterial, antifungal, antioxidant, and photocatalytic applications DOI Creative Commons
Sanaz Ashrafi-Saiedlou, MirHassan Rasouli-Sadaghiani, Mohammad Reza Fattahi

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 6, 2025

This study investigates the biosynthesis of iron oxide nanoparticles (Fe2O3NPs) using cell-free supernatant Pseudomonas fluorescens. The synthesized Fe2O3NPs were characterized through UV–VIS, XRD, FTIR, FESEM, EDX, TEM, BET, and VSM analyses. XRD results confirmed that successfully EDX analysis indicated accounted for 89.5% sample composition. Imaging via SEM TEM revealed average diameters 20.43 ± 5.38 nm 24.32 5.03 nm, respectively. antimicrobial effects assessed against four bacterial strains fungal species. Inhibition zones 8.35 0.103 mm 8.31 0.128 observed syringae Staphylococcus aureus at a concentration 400 μg mL−1 Fe2O3NPs. Antifungal efficacy showed growth rate reductions 90.4% Aspergillus niger, 71.1% Monilinia fructigena, 68.8% Botrytis cinerea, 84.2% Penicillium expansum, compared to controls. demonstrated photocatalytic degradation efficiencies 89.93%, 84.81%, 79.71% methyl violet, orange, methylene blue, Also exhibited significant DPPH free radical scavenger activity with an IC50 value 8.45 0.59 mL−1. study's findings underscored potential in addressing environmental pollution combating pathogenic microorganisms.

Language: Английский

Citations

4

3D Porous MoS2-Decorated Reduced Graphene Oxide Aerogel as a Heterogeneous Catalyst for Reductive Transformation Reactions DOI
Jaidev Kaushik, Charu Sharma, Nicky Kumar Lamba

et al.

Langmuir, Journal Year: 2023, Volume and Issue: 39(36), P. 12865 - 12877

Published: Aug. 28, 2023

The MoS2-based reduced graphene oxide aerogel (MoS2-rGOA)-assisted organic transformation reactions are presented. MoS2-rGOA is used as a heterogeneous catalyst for the reduction of benzene derivatives such benzaldehyde, nitrobenzene, and benzonitrile to benzyl alcohol, aniline, benzamide their derivatives, respectively, in green solvents (water/methanol) reducing agents (hydrazine hydrate having N2 H2 byproducts). mechanistic features pathway, substrate scope, best suitable conditions by varying temperature, solvent, agent, loading, time, etc. optimized. All synthesized products obtained quantitative yield with purity well characterized based on nuclear magnetic resonance analysis. Further, it also observed that our efficiently recyclable works checked up 5 cycles.

Language: Английский

Citations

26

Photocatalytic Degradation of Organic Dyes by Magnetite Nanoparticles Prepared by Co-Precipitation DOI Open Access
Thandi B. Mbuyazi, Peter A. Ajibade

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(14), P. 7876 - 7876

Published: July 18, 2024

Iron oxide nanoparticles were synthesized by co-precipitation using three different iron salt stoichiometric mole ratios. Powder X-ray diffraction patterns revealed the inverse cubic spinel structure of magnetite oxide. Transmission electron microscopic images showed Fe3O4 with shapes and average particle sizes 5.48 nm for Fe3O4-1:2, 6.02 Fe3O4-1.5:2, 6.98 Fe3O4-2:3 an energy bandgap 3.27 to 3.53 eV. The as-prepared used as photocatalysts degrade brilliant green (BG), rhodamine B (RhB), indigo carmine (IC), methyl red (MR) under visible light irradiation. photocatalytic degradation efficiency 80.4% was obtained from Fe3O4-1:2 green, 61.5% Fe3O4-1.5:2 B, 77.9% 73.9% both red. This indicates that is more efficient in than one dye. study shows degrades most effectively at pH 9, best 6.5, efficiently 3. Recyclability experiments can be recycled four times are photostable.

Language: Английский

Citations

11

Waste Iron Dust Derived Iron Oxide Nanoparticles for Efficient Adsorption of Multiple Azo Dyes DOI Open Access

Twinkle Twinkle,

Hema Tewatia, Jaidev Kaushik

et al.

ACS Sustainable Resource Management, Journal Year: 2024, Volume and Issue: 1(2), P. 278 - 288

Published: Jan. 16, 2024

Herein, we have described a simple and viable approach to use the waste byproduct of steel industries: red iron oxide dust (IOD) for synthesizing its reduced version as reduced-IOD (r-IOD). The r-IOD possess active multiphases oxides (Fe@Fe3O4@Fe2O3) is used adsorption three organic dyes. surface area magnetically found be ∼4.5 times than that IOD shows better mesoporosity. Due having larger area, efficient dyes include two anionic azo dyes, namely, RG 19 (Reactive Green 19), RO 16 Orange 16) one cationic MG (Malachite Green) dye, with maximum capacities ∼2162.9, ∼2273.1, ∼1400.2 mg g–1, respectively. Various batch experiments related kinetics, isotherms, thermodynamics are studied understand rate, order, type, feasibility adsorption. effects temperature, pH, loading, concentration, on process also investigated. Moreover, capacity satisfactorily tested via an external spiking method toward dye removal from industrial wastewater laboratory wastewater.

Language: Английский

Citations

10

Ultra-fast microwave catalytic degradation of multiple dyes by waste derived carbon nano onions DOI
Himanshu Asati, Mrinmoy Mondal, Kumud Malika Tripathi

et al.

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 26, P. 100724 - 100724

Published: Feb. 19, 2024

Language: Английский

Citations

9

Recent advances in photocatalytic nanomaterials for environmental remediation: Strategies, mechanisms, and future directions DOI
Xin Zhang,

Sirui Xiong,

Anbazhagan Sathiyaseelan

et al.

Chemosphere, Journal Year: 2024, Volume and Issue: 364, P. 143142 - 143142

Published: Aug. 19, 2024

Language: Английский

Citations

9

Comprehensive review on the advancement of transition metal oxides infused cellulose acetate nanocomposites for the photocatalytic degradation of emerging pollutants DOI

Palani Karthik,

Jegathalaprathaban Rajesh, Siranjeevi Ravichandran

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 66, P. 106010 - 106010

Published: Aug. 26, 2024

Language: Английский

Citations

7

Fluorine-doped TiO2/SiO2/ activated carbon ternary hybrids: Enhancing adsorption and photocatalytic degradation of rhodamine B and methyl orange DOI

Jinyuan Zhu,

Yingying Zhu, Zhen Chen

et al.

Materials Research Bulletin, Journal Year: 2024, Volume and Issue: 176, P. 112826 - 112826

Published: April 7, 2024

Language: Английский

Citations

6

Fenton-mediated thermocatalytic conversion of CO2 to acetic acid by industrial waste-derived magnetite nanoparticles DOI
Jaidev Kaushik, Nicky Kumar Lamba,

V.G. Dileep Kumar

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(25), P. 3449 - 3452

Published: Jan. 1, 2024

Steel industry waste-derived rod-like Fe 3 O 4 -NPs were used for thermo-catalytic reduction of CO 2 to acetic acid in aqueous-H medium. H facilitates the reaction by generating high concentrations OH˙ and +/ ˙, supporting yield.

Language: Английский

Citations

4