Green fabrication of titanium dioxide nanoparticles and their applications in photocatalytic dye degradation and microbial activities

Chemical Physics Impact, Journal Year: 2023, Volume and Issue: 6, P. 100197 - 100197

Published: March 24, 2023

Language: Английский

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Bacillus thuringiensis Based Ruthenium/Nickel Co-Doped Zinc as a Green Nanocatalyst: Enhanced Photocatalytic Activity, Mechanism, and Efficient H₂ Production from Sodium Borohydride Methanolysis

Industrial & Engineering Chemistry Research, Journal Year: 2023, Volume and Issue: 62(11), P. 4655 - 4664

Published: Jan. 11, 2023

Today, the development of green nanocatalysts is among popular topics due to need for energy production and cleaning organic pollutants. In this approach, Bacillus thuringiensis, a bacterium, was used as biosupport ruthenium/nickel co-doped zinc nanoparticles (btRNZn NPs) release hydrogen from methanolysis sodium borohydride (NaBH4). addition, their photocatalytic activity reported against Methyl Orange (MO) dye. This study focused on preparation, characterization, catalytic btRNZn biocatalyst NaBH4 removal MO According TEM analysis, average size NPs found be 11.78 nm; in showed photodegradation effect 68.2% dye at 90 min, its mechanism discussed. The effects catalyst, substrate, temperature reaction presence catalyst were investigated extensively. kinetics calculated, TOF, activation energy, enthalpy measured 2497.14 h–1, 14.89 kJ/mol, 12.35 respectively. It observed that process first-order based amount substrate. aimed synthesize nanobiocatalyst by biological method, it will great photocatalyst prevent wastewater pollution; also, can an excellent produce methanolysis. application solar photocatalysis pollution research through creation are both made clear these studies.

Language: Английский

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A Perspective Review on Green Nanotechnology in Agro-Ecosystems: Opportunities for Sustainable Agricultural Practices & Environmental Remediation

Agriculture, Journal Year: 2023, Volume and Issue: 13(3), P. 668 - 668

Published: March 13, 2023

The modern agricultural system is facing the unprecedented task of contriving extensive demand for agrarian production owing to population explosion and global climate change. employment Nanotechnology in agriculture has gained immense interest recent times development sustainable technologies environmental remediation strategies. pertains nanoparticles furnishes potential fabricate novel materials products possessing improved quality. nanomaterials may be used as; nanosensors, nanocides, nanofertilizers, nanobarcodes, nano-remediators, which play a significant role practices. However, physical chemical processes nanoparticle neither economical nor environmentally sustainable. Therefore, need green or biogenic obtained from plants, bacteria, fungi their metabolites emerged as novel, sustainable, economical, biocompatible, eco-friendly technology. In this perspective, sources implication agro-ecosystems crop productivity, soil health management, biocontrol, have been focused on review. implementation challenges are also explored.

Language: Английский

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Phytomediated synthesis of Fe3O4 nanoparticles using Cannabis sativa root extract: photocatalytic activity and antibacterial efficacy

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: unknown

Published: June 6, 2024

Language: Английский

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Eco-friendly synthesis of Ag-NPs using Endostemon viscosus (Lamiaceae): Antibacterial, antioxidant, larvicidal, photocatalytic dye degradation activity and toxicity in zebrafish embryos

Environmental Research, Journal Year: 2022, Volume and Issue: 218, P. 114946 - 114946

Published: Dec. 6, 2022

Language: Английский

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The effect of calcination temperatures on the structural and optical properties of zinc oxide nanoparticles and their influence on the photocatalytic degradation of leather dye

Chemical Physics Impact, Journal Year: 2023, Volume and Issue: 6, P. 100196 - 100196

Published: March 26, 2023

The challenge of dealing with synthetic dye pollution in waste from the leather industry requires continual research and development. Although numerous dyes used textile, food, other industries have been found to be degraded by photocatalyst based on zinc oxide nanoparticles (ZnO NPs), no thorough studies degradation dye-containing wastewaters tanneries reported date. Hence, this study investigates efficient photocatalytic destruction using ZnO NPs produced chemical precipitation method. influence calcination temperatures ranging 400 600 °C structural optical characteristics was investigated. XRD examination revealed an increase crystallite size as temperature increased, presumably due merger smaller crystallites into larger ones. Meanwhile, polycrystalline wurtzite structure synthesized observed, particle diameters 40 90 nm average around 62 nm. UV–vis spectra a decrease energy band gap (3.15 3.05 eV), which ascribed higher °C. studied further. It has demonstrated that at can remove 90% 30 min. dynamics deterioration were also studied. discovered best fitted pseudo-first-order kinetics, superoxide ions being most likely species.

Language: Английский

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Visible light driven photocatalytic and competent antioxidant properties of phyto-fabricated zinc oxide nanoparticles (ZnO-NPs) from Borreria hispida

Journal of Molecular Structure, Journal Year: 2023, Volume and Issue: 1293, P. 136152 - 136152

Published: July 5, 2023

Language: Английский

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Rosa damascena leaf extract mediated palladium nanoparticles and their anti-inflammatory and analgesic applications

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 162, P. 112122 - 112122

Published: Jan. 26, 2024

Language: Английский

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Padina boergesenii mediated synthesis of Se-ZnO bimetallic nanoparticles for effective anticancer activity

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Feb. 26, 2024

Introduction Evaluating the anticancer property of Padina boergesenii mediated bimetallic nanoparticles. Methods The present study focuses on synthesizing Se-ZnO nanoparticles from an aqueous algal extract brown algae .Synthesized NPs were characterized by UV, FTIR, SEM-EDS and HRTEM for confirmation along with activity MTT assay. Results UV gave absorbance peak at 342 370 nm, FTIR showed functional groups involved in NPs. TEM micrographs indicated crystalline nature confirmed size to be average 26.14 nm. Anticancer efficacy against MCF-7 breast HepG2 (hepatoblastoma) cell lines also demonstrated, attaining IC 50 value 67.9 µg 74.9 µg/ml respectively, which caused 50% death. Discussion This work aims highlight effective method delivering bioactive compounds extracted emphasize its future therapeutic prospects. potential Selenium-Zinc oxide is great interest due biocompatibility low toxicity aspects selenium combined cost-effectiveness sustainability zinc metal. presence contributed stability acted as capping properties.

Language: Английский

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Ecofriendly synthesis of Salmalia Malabarica gum stabilized palladium nanoparticles: antibacterial and catalytic properties

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: 15(4), P. 6055 - 6067

Published: Feb. 27, 2024

Abstract Effluents containing dyes, discharged by various industries, have become a significant contributor to water pollution. This study explores the use of green-synthesized palladium nanoparticle (PdNP) catalysts, which offer enhanced catalytic performance compared traditional methods. The research focuses on synthesis nanoparticles using Salmalia Malabarica (SM) gum via microwave-assisted process and investigates their antibacterial properties. SEM analysis confirms even distribution PdNPs surface SM gum. Furthermore, TEM reveals size 10 ± 2 nm. XPS was used identify chemical state Pd in synthesized nanoparticles. results demonstrate that are highly effective catalysts for degradation dyes such as Methylene Orange (MO), Rhodamine-B (Rh-B), 4-Nitrophenol (4-NP), after being reused five times. activity remarkable, achieved 99% dye four minutes. data 4 -NP, MO Rh-B followed pseudo-first-order kinetics with 0.0087, 0.0152 0.0164 s − 1 , respectively. Additionally, exhibit exceptional antimicrobial against both bacterial fungal strains. proves be cost-effective, devoid toxic chemicals, remarkably rapid. findings suggest promising applications fields like nanomedicine environmental remediation, reflecting potential addressing pollution issues.

Language: Английский

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