Green synthesis of Cu-doped ZnO nanoparticles and its application for the photocatalytic degradation of hazardous organic pollutants

Chemosphere, Journal Year: 2021, Volume and Issue: 287, P. 132081 - 132081

Published: Aug. 31, 2021

Language: Английский

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Carbon dioxide adsorption based on porous materials

RSC Advances, Journal Year: 2021, Volume and Issue: 11(21), P. 12658 - 12681

Published: Jan. 1, 2021

Global warming is considered one of the world's leading challenges in 21st century as it causes severe concerns such climate change, extreme weather events, ocean warming, sea-level rise, declining Arctic sea ice, and acidification oceans.

Language: Английский

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Biocompatible Carbon Quantum Dots Derived from Sugarcane Industrial Wastes for Effective Nonlinear Optical Behavior and Antimicrobial Activity Applications

ACS Omega, Journal Year: 2020, Volume and Issue: 5(47), P. 30363 - 30372

Published: Nov. 19, 2020

In this work, the green synthesis of highly fluorescent carbon quantum dots (CQDs) with an efficient yield 17.98% using sugarcane bagasse pulp as precursor was conducted by a hydrothermal technique. The high-resolution transmission electron microscopy analysis revealed that CQDs were competently monodispersed particle size ranging between 0.75 and 2.75 nm. structural properties investigated X-ray diffraction, Fourier transform infrared, photoelectron spectroscopy analyses. UV–visible spectrum showed two absorption peaks due to aromatic C═C transitions π–π* C═O n−π*. fluorescence displayed strong blue emission. However, first-ever its kind, industrial solid waste caused significant orders obey enhancement third-order nonlinearity (χ(3)) when compared other (CDs). calculated nonlinear optical (NLO) parameters such n2, β, χ(3) 1.012 × 10–8 cm2/W, 2.513 10–4, 3.939 10–7 esu, respectively. figures merit evaluated be W = 6.6661 T 0.0132, which greatly fulfilled switching conditions. Besides, antibacterial activities screened against aquatic Gram-positive (Benthesicymus cereus Staphylococcus aureus) Gram-negative (Pseudomonas aeruginosa, Vibrio cholerae, Escherichia coli) microbial organisms. Our findings, however, indicate synergistic are promising materials for functioning NLO devices, bioimaging, pharmaceutical applications.

Language: Английский

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Photocatalysis vs adsorption by metal oxide nanoparticles

Journal of Material Science and Technology, Journal Year: 2022, Volume and Issue: 131, P. 122 - 166

Published: June 8, 2022

Language: Английский

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Synthesis and Characterization of Nanomaterials for Application in Cost-Effective Electrochemical Devices

Sustainability, Journal Year: 2023, Volume and Issue: 15(14), P. 10891 - 10891

Published: July 11, 2023

Nanomaterials have gained significant attention as a remarkable class of materials due to their unique properties and the fact that they encompass wide range samples with at least one dimension ranging from 1 100 nm. The deliberate design nanoparticles enables achievement extremely large surface areas. In field cost-effective electrochemical devices for energy storage conversion applications, nanomaterials emerged key area research. Their exceptional physical chemical led extensive investigations aimed improving performance cost-effectiveness devices, including batteries, supercapacitors, fuel cells. continuous development enhancement these high-performance are driven by demand enhanced productivity, connectivity, sustainability reduced cost. This review focuses on electrodes, storage, sensors (ES) based nanotechnology. It discusses application nanotechnology in electrochemistry water purification fate substances water, while also introducing green cost-effective, high-fidelity product creation through methods. study emphasizes synthesis novel nanomaterials, such metal–organic frameworks (MOFs), covalent organic (COFs), MXenes, applications devices. Furthermore, it explores integration nanostructures systems economically future along challenges faced nanotechnology-based industries. paper interplay between biosensors, which play vital role Overall, this provides comprehensive overview significance conversion. highlights need further research rapidly evolving serves valuable resource researchers engineers interested latest advancements

Language: Английский

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Green synthesis of iron nanoparticles using Artocarpus heterophyllus peel extract and their application as a heterogeneous Fenton-like catalyst for the degradation of Fuchsin Basic dye

Current Research in Green and Sustainable Chemistry, Journal Year: 2021, Volume and Issue: 4, P. 100086 - 100086

Published: Jan. 1, 2021

Synthesis of nanoparticles by utilizing some the green chemistry principles offers a viable and sustainable approach for nanotechnology. Iron (Fe NPs) were synthesised using Artocarpus heterophyllus (Jackfruit) peel extract. The peel, with its high antioxidant content, serves as potential source valuable biomolecules which act bio-reductants, capping stabilizing agents synthesis nanoparticles. method, apart from non toxic reactant materials being cost effective, utilizes waste usefully in process reduces accumulation. iron jackfruit extract NPs-JF) characterized Fourier transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM), X-Ray diffraction (XRD), Scanning (SEM) equipped energy dispersive X-ray (EDX) techniques. so comprised zero-valent (nZVI) along oxides oxyhydroxide, an average size 33 ​nm. Further, efficacy Fenton-like catalyst has been demonstrated degradation pollutant dyes like Fuchsin Basic. experiment showed that these exhibited excellent catalytic activity removal efficiency 87.5% initial 20 ​min at 318 ​K. In addition, Basic dye fitted well to be pseudo-first order model. On basis activation oxidative calculated Arrhenius equation, it could inferred followed surface-controlled reaction wherein rate-limiting step constituted surface-chemical instead diffusion.

Language: Английский

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Recent advances in semiconductor heterojunctions: a detailed review of the fundamentals of photocatalysis, charge transfer mechanism and materials

RSC Applied Interfaces, Journal Year: 2023, Volume and Issue: 1(1), P. 43 - 69

Published: Sept. 27, 2023

Semiconductor heterojunctions are pivotal in determining the overall photocatalytic efficiency. This review explores recent advances diverse heterojunction types, charge transfer mechanisms and materials.

Language: Английский

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Vacancy defect engineering in semiconductors for solar light‐driven environmental remediation and sustainable energy production

Interdisciplinary materials, Journal Year: 2022, Volume and Issue: 1(2), P. 213 - 255

Published: April 1, 2022

Abstract The introduction of vacancy defects in semiconductors has been proven to be a highly effective approach improve their photocatalytic activity owing advantages promoting light absorption, facilitating photogenerated carrier separation, optimizing electronic structure, and enabling the production reactive radicals. Herein, we outline state‐of‐the‐art vacancy‐engineered photocatalysts various applications reveal how vacancies influence performance. Specifically, types defects, methods for tailoring vacancies, advanced characterization techniques, categories with corresponding behaviors are presented. Meanwhile, creation related performance correlated, which can very useful guide readers quickly obtain in‐depth knowledge have good idea about selection defect engineering methods. precise is challenging. This review describes accurate use series techniques detailed comments suggestions. represents uniqueness this comprehensive review. challenges development prospects practical discussed provide promising research direction field.

Language: Английский

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MoS2 based nanomaterials: Advanced antibacterial agents for future

Journal of Controlled Release, Journal Year: 2022, Volume and Issue: 348, P. 158 - 185

Published: June 7, 2022

Language: Английский

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Nanotubes/nanorods-like structures of La-doped ZnO for degradation of Methylene Blue and Ciprofloxacin

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2023, Volume and Issue: 447, P. 115235 - 115235

Published: Oct. 9, 2023

Language: Английский

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