Biomass-derived Carbon Quantum Dots for Visible-Light-Induced Photocatalysis and Label-Free Detection of Fe(III) and Ascorbic acid

Scientific Reports, Год журнала: 2019, Номер 9(1)

Опубликована: Окт. 21, 2019

Abstract Visible-light-driven photocatalysts prepared using renewable resources are crucial but challenging to develop for the efficient degradation of organic pollutants, which is required solve ever-increasing water deterioration issues. In this study, we report a visible-light-responsive photocatalyst methylene blue (MB) as model pollutant dye. Green-emissive carbon quantum dots (CQDs) were synthesized from pear juice via facile, scalable, one-pot solvothermal process. The as-synthesized CQDs exhibit superior photocatalytic activity under visible-light irradiation owing their light absorption, electron transfer, and separation photogenerated charge carriers, facilitating ~99.5% MB within 130 min. A possible mechanism photocatalysis proposed on basis comprehensive active species trapping experiments. Furthermore, used in specific sensitive assay Fe(III) ascorbic acid (AA), even with interference other metal ions. fluorescence emission was “turned off” specifically upon binding on” AA. represent fluorescent probes that not restricted by toxicity, cost, or lack scalability.

Язык: Английский

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Biomass vs inorganic and plastic-based aerogels: Structural design, functional tailoring, resource-efficient applications and sustainability analysis

Progress in Materials Science, Год журнала: 2021, Номер 125, С. 100915 - 100915

Опубликована: Дек. 24, 2021

The highly efficient utilization of bioresources and natural organic wastes has attracted great attention, due to the high-speed consumption shortage energy in modern society. Aerogels, attributable their outstanding properties potential applications diverse fields, have been a major topic innovative materials research last decades. While previously scientific community mainly focused on inorganic- plastic-based aerogels, recent years witnessed growing interest biomass-based counterparts. In fact, numerous studies fabrication, modification, cellulose, polysaccharide, protein, peptide, other bio-derived aerogels widely reported. this review, we focus advances field. analysis that perform ranges from structural design routes for functional tailoring, encompasses resource-efficient applications; aim is provide comprehensive review based robust available data. fabrication techniques, structure are introduced, together with chemical, mechanical, electrical, optical, biological properties. addition, design, demonstrated. Furthermore, enrich actual literature state-of-the-art broad sustainability analysis, compares most studied inorganic/plastic-based To end, comparison by footprint which accounts 12 parameters environmental, social, techno-economic impacts. This will guide readers understanding adjustment, through comprehensively presenting sustainable fields as biomedical engineering, materials, nanodevices, chemical environmental science.

Язык: Английский

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Synthesis, formation mechanisms and applications of biomass-derived carbonaceous materials: a critical review

Journal of Materials Chemistry A, Год журнала: 2021, Номер 9(44), С. 24759 - 24802

Опубликована: Янв. 1, 2021

Synthesis and formation mechanisms of biomass-derived carbonaceous materials are critically reviewed in terms biomass sources, conversion methods additives for energy environmental applications.

Язык: Английский

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Green synthesis of peptide functionalized reduced graphene oxide (rGO) nano bioconjugate with enhanced antibacterial activity

Scientific Reports, Год журнала: 2020, Номер 10(1)

Опубликована: Июнь 10, 2020

Abstract Bioengineered nanoconjugates have enormous potential as a multifunctional platform for biomedical applications. Conjugation between biotic and abiotic materials enables formulation of with enhanced physico-chemical properties, increased stability ability to overcome the inherent shortcomings individual materials. In this study, we report preparation biophysical characterization an antibacterial system formulated by functionalizing reduced graphene oxide (rGO) antimicrobial peptide via covalent well non-covalent interaction mechanisms. Environmentally benign synthesis approach was adopted formation rGO, using L-ascorbic acid reducing agent. Covalently conjugated peptide-graphitic conjugate displayed improved efficacy against Escherichia coli considerably low cytotoxic activity towards erythrocytes in comparison self-assembled rGO alone. The studies described herein are highly significant field biomaterials aims open new avenues research focusing on plethora applications prospective non-toxic substitute conventional approaches.

Язык: Английский

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Sunlight-promoted photodegradation of Congo red by cadmium-sulfide decorated graphene aerogel

Chemosphere, Год журнала: 2021, Номер 287, С. 132225 - 132225

Опубликована: Сен. 9, 2021

Язык: Английский

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Nano-carbon based sensors for bacterial detection and discrimination in clinical diagnosis: A junction between material science and biology

Applied Materials Today, Год журнала: 2019, Номер 18, С. 100467 - 100467

Опубликована: Сен. 28, 2019

Язык: Английский

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Effect of high-intensity ultrasonic treatment on the physicochemical, structural, rheological, behavioral, and foaming properties of pumpkin (Cucurbita moschata Duch.)-seed protein isolates

LWT, Год журнала: 2021, Номер 155, С. 112952 - 112952

Опубликована: Дек. 9, 2021

Pumpkin-seed protein isolates were treated with high-intensity ultrasound (HIU). The effects of different powers at the same treating time on physicochemical, structure and foaming properties pumpkin-seed (PSPIs) investigated. results showed that treatment transformed PSPI aggregates into smaller a more uniform distribution. When pH value increased, solubility ability also increased significantly. Increasing power surface hydrophobicity PSPIs total sulfhydryl contents, while active content decreased. most significant effect occurred when 500 W ultrasonic was used. had chromaticity turbidity isolates. With an increase in power, scanning electron microscopy (SEM) sizes particles decreased as their distribution increased. Moreover, found to be beneficial for enhancing improving performance. Ultrasound modification affected protein's physicochemical structure, which contributed greatly corresponding functional nutritional protein. It would be, therefore, useful develop utilize plant improve its added-value.

Язык: Английский

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Carbon nano-onions from waste oil for application in energy storage devices

New Journal of Chemistry, Год журнала: 2020, Номер 44(18), С. 7369 - 7375

Опубликована: Янв. 1, 2020

Carbon nano onions produced by a sustainable and green synthetic method were utilized as high packing density electrode material for supercapacitor application.

Язык: Английский

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Bio-mass derived functionalized graphene aerogel: a sustainable approach for the removal of multiple organic dyes and their mixtures

New Journal of Chemistry, Год журнала: 2021, Номер 45(20), С. 9073 - 9083

Опубликована: Янв. 1, 2021

Herein, fabrication of a functionalized graphene aerogel (f-GA) from biomass (pear fruit)-derived (GA) is described. f-GA showing better adsorption capacity towards CV, MB and RhB dyes than GA activated charcoal.

Язык: Английский

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Recent advances in application of the graphene-based membrane for water purification

Materials Today Chemistry, Год журнала: 2021, Номер 22, С. 100597 - 100597

Опубликована: Окт. 22, 2021

Язык: Английский

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