Review on Methylene Blue: Its Properties, Uses, Toxicity and Photodegradation

Water, Journal Year: 2022, Volume and Issue: 14(2), P. 242 - 242

Published: Jan. 14, 2022

The unavailability of clean drinking water is one the significant health issues in modern times. Industrial dyes are dominant chemicals that make unfit for drinking. Among these dyes, methylene blue (MB) toxic, carcinogenic, and non-biodegradable can cause a severe threat to human environmental safety. It usually released natural sources, which becomes beings living organisms. Hence, there need develop an environmentally friendly, efficient technology removing MB from wastewater. Photodegradation advanced oxidation process widely used removal. has advantages complete mineralization dye into simple nontoxic species with potential decrease processing cost. This review provides tutorial basis readers working degradation research area. We not only covered basic principles but also provided wide range previously published work on photocatalytic systems (single-component multi-component photocatalysts). Our study focused critical parameters affect photodegradation rate MB, such as photocatalyst type loading, irradiation reaction time, pH media, initial concentration dye, radical scavengers oxidising agents. mechanism, pathways, intermediate products, final products summarized. An overview future perspectives utilize at industrial scale provided. paper identifies strategies development effective systems.

Language: Английский

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Carbon Dots: Synthesis, Properties and Applications

Nanomaterials, Journal Year: 2021, Volume and Issue: 11(12), P. 3419 - 3419

Published: Dec. 16, 2021

Carbon dots (CDs) are known as the rising star of carbon-based nanomaterials and, by virtue their unique structure and fascinating properties, they have attracted considerable interest in different fields such biological sensing, drug delivery, photodynamic therapy, photocatalysis, solar cells recent years. Particularly, outstanding electronic optical properties CDs increasing attention biomedical photocatalytic applications owing to low toxicity, biocompatibility, excellent photostability, tunable fluorescence, efficient up-converted photoluminescence behavior, photo-induced electron transfer ability. This article reviews progress on synthesis routes well applications. Furthermore, we discuss an outlook future potential development based biosensor, dye, vehicle, photocatalysts this booming research field.

Language: Английский

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Review on Sensing Applications of Perovskite Nanomaterials

Chemosensors, Journal Year: 2020, Volume and Issue: 8(3), P. 55 - 55

Published: July 14, 2020

Recently, perovskite-based nanomaterials are utilized in diverse sustainable applications. Their unique structural characteristics allow researchers to explore functionalities towards directions, such as solar cells, light emitting devices, transistors, sensors, etc. Many perovskite nanomaterial-based devices have been demonstrated with extraordinary sensing performance various chemical and biological species both solid solution states. In particular, capable of detecting small molecules O2, NO2, CO2, This review elaborates the applications those materials cations, dopants composites. Moreover, underlying mechanisms electron transport properties, which important for understanding sensor performances, will be discussed. synthetic tactics, information, modifications real time provided promote nanomaterials-based molecular designs. Lastly, we summarize perspectives provide feasible guidelines future developing novel nanostructure-based chemo- biosensors demonstration.

Language: Английский

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Recent advancement of biomass-derived porous carbon based materials for energy and environmental remediation applications

Journal of Materials Chemistry A, Journal Year: 2022, Volume and Issue: 10(13), P. 6965 - 7005

Published: Jan. 1, 2022

The review summarizes the most recent advances, challenges and future perspectives in biomass/waste-derived nanoporous carbon materials for energy environmental remediation applications.

Language: Английский

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N, S, and P-Co-doped Carbon Quantum Dots: Intrinsic Peroxidase Activity in a Wide pH Range and Its Antibacterial Applications

ACS Biomaterials Science & Engineering, Journal Year: 2020, Volume and Issue: 6(10), P. 5527 - 5537

Published: Sept. 3, 2020

Nanozymes have drawn significant scientific interest due to their high practical importance in terms of overcoming the instability, complicated synthesis, and cost protein enzymes. However, activity is generally limited particular pHs, especially acidic ones. Herein, we report that luminescent N, S, P-co-doped carbon quantum dots (NSP-CQDs) act as attractive peroxidase mimetics a wide pH range, even at neutral pH, for substrate 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) presence H2O2. The synergistic effects multiple heteroatoms doping CQDs boost catalytic range attributed density active sites enzymatic-like catalysis accelerated electron transfer during peroxidase-like reactions. A possible reaction mechanism investigated based on radical trapping experiments. Moreover, multifunctional NSP-CQDs was further utilized antibacterial assays both Gram-negative Gram-positive model species, including Escherichia coli (E. coli) Staphylococcus aureus (S. aureus), respectively. growths employed E. S. were found be significantly inhibited peroxidase-mediated perturbation cell walls. present work signifies current advance rational design highly mimics novel applications diverse fields, catalysis, medical diagnostics, environmental chemistry, biotechnology.

Language: Английский

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Microwave-assisted green synthesis of fluorescent carbon quantum dots from Mexican Mint extract for Fe3+ detection and bio-imaging applications

Environmental Research, Journal Year: 2021, Volume and Issue: 199, P. 111263 - 111263

Published: May 1, 2021

Language: Английский

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Solvothermal synthesis and applications of micro/nano carbons: A review

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 451, P. 138572 - 138572

Published: Aug. 11, 2022

Language: Английский

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Comparison between hydrothermal and microwave-assisted synthesis of carbon dots from biowaste and chemical for heavy metal detection: A review

Microchemical Journal, Journal Year: 2021, Volume and Issue: 165, P. 106116 - 106116

Published: Feb. 27, 2021

Language: Английский

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Recent Advances on Synthesis and Potential Applications of Carbon Quantum Dots

Frontiers in Materials, Journal Year: 2022, Volume and Issue: 9

Published: July 1, 2022

Fluorescent carbon nanoparticles also termed as quantum dots (CQDs) have attracted so much interest when compared to the traditional semiconductor due their applications in chemical sensing, biomedical imaging, nanotechnology, photovoltaics, light-emitting diodes (LEDs), and electrochemistry. Along with optical features, CQDs desired properties such less toxicity, environmentally friendly nature, inexpensive, simple preparation processes. In addition, can physical controlled by surface passivation functionalization. This article provides an account of because distinct characteristics considerable capacity diverse applications. The is categorized into various sections that highlight synthesis methodologies advantages/disadvantages potential sensors, bio-imaging, drug delivery, solar cells, supercapacitors. different be demonstrated methods. We discussed gas sensing briefly provided a brief overview osmotic power generation using for energy

Language: Английский

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A sustainable green synthesis of functionalized biocompatible carbon quantum dots from Aloe barbadensis Miller and its multifunctional applications

Environmental Research, Journal Year: 2021, Volume and Issue: 200, P. 111414 - 111414

Published: May 27, 2021

Language: Английский

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