Trends in photocatalytic degradation of organic dye pollutants using nanoparticles: A review

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

Published: Oct. 24, 2023

Language: Английский

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Green Metallic Nanoparticles: Biosynthesis to Applications

Frontiers in Bioengineering and Biotechnology, Journal Year: 2022, Volume and Issue: 10

Published: April 6, 2022

Current advancements in nanotechnology and nanoscience have resulted new nanomaterials, which may pose health environmental risks. Furthermore, several researchers are working to optimize ecologically friendly procedures for creating metal oxide nanoparticles. The primary goal is decrease the adverse effects of synthetic processes, their accompanying chemicals, resulting complexes. Utilizing various biomaterials nanoparticle preparation a beneficial approach green nanotechnology. using biological qualities nature through variety activities an excellent way achieve this goal. Algae, plants, bacteria, fungus been employed make energy-efficient, low-cost, nontoxic metallic nanoparticles last few decades. Despite advantages chemistry-based synthesis over traditional methods as discussed article, there some unresolved issues such particle size shape consistency, reproducibility process, understanding mechanisms involved producing via entities. Consequently, need further research analyze comprehend real synthesis-dependent processes. This currently untapped hot topic that required more investment properly leverage manufacturing living review covers synthesizing utilization scientific world.

Language: Английский

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Green synthesis of bimetallic Ag/ZnO@Biohar nanocomposite for photocatalytic degradation of tetracycline, antibacterial and antioxidant activities

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: May 5, 2022

In this work, a simple and green synthesis procedure for phytofabrication Zinc oxide-silver supported biochar nanocomposite (Ag/ZnO@BC) via Persicaria salicifolia biomass is investigated the first time to uphold numerous chemistry such as less hazardous chemical syntheses. XRD technique showed crystal structure of phytosynthesized Ag/ZnO@BC, whereas UV-visible spectroscopy, FT-IR, SEM, EDX, TEM, XPS analyses indicated successful biosynthesis nanocomposite. Testing photocatalytic potential novel in removal TC under different conditions unraveled its powerful photodegradation efficiency that reached 70.3% optimum reaction conditions: concentration; 50 ppm, pH; 6, dose Ag/ZnO@BC; 0.01 g, temperature; 25 °C, H2O2 100 mM. The reusability Ag/ZnO@BC was evident it 53% after six cycles regeneration. also shown be potent antimicrobial agent against Klebsiella pneumonia well promising antioxidant material. Therefore, current work presented could efficiently employed various environmental medical applications.

Language: Английский

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Gold Nanoparticles: Synthesis Methods, Functionalization and Biological Applications

Journal of Cluster Science, Journal Year: 2022, Volume and Issue: 34(2), P. 705 - 725

Published: June 4, 2022

Language: Английский

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Novel Biogenic Synthesis of a Ag@Biochar Nanocomposite as an Antimicrobial Agent and Photocatalyst for Methylene Blue Degradation

ACS Omega, Journal Year: 2022, Volume and Issue: 7(9), P. 8046 - 8059

Published: Feb. 21, 2022

The conventional synthesis of nanomaterials employing physical and chemical methods usually requires high cost toxic chemicals. Thus, a facile, ecofriendly, cost-effective, novel, sustainable route for the silver-loaded biochar nanocomposite (Ag@biochar) using

Language: Английский

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Current Overview of Metal Nanoparticles’ Synthesis, Characterization, and Biomedical Applications, with a Focus on Silver and Gold Nanoparticles

Pharmaceuticals, Journal Year: 2023, Volume and Issue: 16(10), P. 1410 - 1410

Published: Oct. 4, 2023

Metal nanoparticles (NPs) have garnered considerable attention, due to their unique physicochemical properties, that render them promising candidates for various applications in medicine and industry. This article offers a comprehensive overview of the most recent advancements manufacturing, characterization, biomedical utilization metal NPs, with primary focus on silver gold NPs. Their potential as effective anticancer, anti-inflammatory, antimicrobial agents, drug delivery systems, imaging agents diagnosis treatment variety disorders is reviewed. Moreover, translation therapeutic settings, issue inclusion clinical trials, are assessed light over 30 investigations concentrate administering either or NPs conditions ranging from nosocomial infections different types cancers. paper aims not only examine biocompatibility nanomaterials but also emphasize challenges may limit safe integration into healthcare practices. More than 100 nanomedicines currently market, which justifies ongoing study use medicine. Overall, present review highlight innovative therapeutics field biomedicine, citing some relevant current applications.

Language: Английский

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A comprehensive review on LDH-based catalysts to activate persulfates for the degradation of organic pollutants

npj Clean Water, Journal Year: 2023, Volume and Issue: 6(1)

Published: April 25, 2023

Abstract Degradation of organic contaminants into less toxic substances is the best option to remove these compounds rather than using conventional techniques. The sulfate radical-based-advanced oxidation process an effective strategy that degrades by activating peroxymonosulfate (PMS). Such a generates singlet oxygen ( 1 O 2 ), hydroxyl $$^ \bullet \!{{{\mathrm{OH}}}}$$ ∙OH and $${{{\mathrm{SO}}}}_4^{ \bullet\! - }$$ xmlns:mml="http://www.w3.org/1998/Math/MathML">SO4∙− ) radicals. \!- distinguished its high selectivity activity toward degradation contaminates compared other Various catalysts are employed in PMS activation including layered doubled hydroxides (LDHs), which characterized their facile synthesis catalytic activity. This review article first attempt compile recent progress common pollutants aromatic compounds, pharmaceutical residues, dyes via LDH-based catalysts. pathways, reaction parameters’ influence, stability LDHs, comparisons between different investigated this work.

Language: Английский

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Zero-valent iron supported-lemon derived biochar for ultra-fast adsorption of methylene blue

Biomass Conversion and Biorefinery, Journal Year: 2022, Volume and Issue: 14(2), P. 1697 - 1709

Published: Feb. 1, 2022

Abstract Green-based materials represent a new promising class of ecofriendly and economic adsorbents. Herein, nano zero-valent iron supported-lemon derived biochar (NZVI-LBC) was prepared for the first time examined in adsorptive removal methylene blue as model pollutant. Different characterization tools were used to ensure successful fabrication NZVI-LBC composite including FTIR, XRD, TEM, XPS, VSM, BET, zeta potential analysis. It found that fabricated NZVI–supported attained propitious adsorbent criteria since it provided supreme efficient adsorption process at short time. The reckoned maximum capacity MB onto reached 1959.94 mg/g within merely 5 min. obtained data clarified fitted pseudo 2 nd order kinetic Freundlich isotherm model. Besides, be endothermic nature. In addition, revealed an excellent behavior even after seven cycles. concrete results reflect potentiality superb candidate remove cationic pollutants from their aqueous solutions. Graphical abstract

Language: Английский

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Phytofabrication of bimetallic silver-copper/biochar nanocomposite for environmental and medical applications

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 316, P. 115238 - 115238

Published: May 13, 2022

Language: Английский

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Efficient removal of noxious methylene blue and crystal violet dyes at neutral conditions by reusable montmorillonite/NiFe2O4@amine-functionalized chitosan composite

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Sept. 15, 2022

Abstract The jeopardy of the synthetic dyes effluents on human health and environment has swiftly aggravated, threatening survival. Hence, sustained studies have figured out most acceptable way to eliminate this poisonous contaminant. Thereby, our investigation aimed fabricate montmorillonite/magnetic NiFe 2 O 4 @amine-functionalized chitosan (MMT-mAmCs) composite as a promising green adsorbent remove cationic methylene blue (MB) crystal violet (CV) from wastewater in neutral conditions. Interestingly, MMT-mAmCs carries high negative charges at wide pH range 11 clarified zeta potential measurements, asserting its suitability adsorb contaminants. In addition, experimental study confirmed that optimum both MB CV was 7, inferring ability simple process Furthermore, ferromagnetic behavior is additional merit provides facile, fast, flawless separation. Notably, as-fabricated revealed an auspicious adsorbability towards adsorptive removal CV, since maximum adsorption capacity were 137 118 mg/g, respectively. Moreover, isotherm kinetic investigatins depicted fitted Langmuir Pseudo 2nd order models, Besides, advanced preserved satisfactory characteristics with maximal efficacy exceeding 87% after reuse for ten consecutive cycles. More importantly, efficiently adsorbed real agricultural water, Nile river water samples medium, reflecting potentiality be superb reusable candidate pollutants their aquatic media.

Language: Английский

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