New paradigms for the synthesis of graphene quantum dots from sustainable bioresources

Mahesh, Sankarapillai; Lekshmi, C. Lalitha; Renuka, Kizhisseri Devi

doi:10.1039/c7nj00544j

Cited by 15 publications

(6 citation statements)

References 28 publications

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“…Consequently, over the years, the synthesis of GQDs has pivoted to the adaptation of green chemistry tenets for attaining sustainability, with the main focus being the design of products that reduce the use of toxic chemicals and hazardous chemical synthesis [ 1 , 51 ]; green chemistry has found its relevance in a myriad of applications, namely in the treatment of water pollution [ 52 ], pharmaceutical industry [ 53 ], synthesis routes to other nanomaterials [ 54 ], etc. Hence, the global effort has shifted its focus to fabricating GQDs (and QDs) via greener routes and deploying eco-friendly bioderived precursors [ 26 , 27 , 55 , 56 ].…”

Section: Environmentally Friendly Synthesis Of Gqds: Greener and Sust...mentioning

confidence: 99%

Eco-Friendly and Sustainable Pathways to Photoluminescent Carbon Quantum Dots (CQDs)

et al. 2023

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Carbon quantum dots (CQDs), a new family of photoluminescent 0D NPs, have recently received a lot of attention. They have enormous future potential due to their unique properties, which include low toxicity, high conductivity, and biocompatibility and accordingly can be used as a feasible replacement for conventional materials deployed in various optoelectronic, biomedical, and energy applications. The most recent trends and advancements in the synthesizing and setup of photoluminescent CQDs using environmentally friendly methods are thoroughly discussed in this review. The eco-friendly synthetic processes are emphasized, with a focus on biomass-derived precursors. Modification possibilities for creating newer physicochemical properties among different CQDs are also presented, along with a brief conceptual overview. The extensive amount of writings on them found in the literature explains their exceptional competence in a variety of fields, making these nanomaterials promising alternatives for real-world applications. Furthermore, the benefits, drawbacks, and opportunities for CQDs are discussed, with an emphasis on their future prospects in this emerging research field.

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Section: Environmentally Friendly Synthesis Of Gqds: Greener and Sust...mentioning

confidence: 99%

Eco-Friendly and Sustainable Pathways to Photoluminescent Carbon Quantum Dots (CQDs)

et al. 2023

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“…[ 59 , 60 , 61 ]. Recently, the synthesis of QDs from various bioresources has been influenced by the development of green and sustainable chemistry [ 62 , 63 , 64 ]. This is mainly because conventional synthesis methods involve lengthy synthesis processes under extreme temperature and pressure conditions.…”

Section: Modification Of Qds With Bioresourcementioning

confidence: 99%

“…In the synthesis of QDs, the use of bioresources led to inexpensive and simple methods. Therefore, the present study focuses on the synthesis of QDs from various bioresources, including micro-organisms, such as bacteria, fungi, yeast, and algae [ 62 , 65 , 66 , 67 ].…”

Section: Modification Of Qds With Bioresourcementioning

confidence: 99%

Bioresource-Functionalized Quantum Dots for Energy Generation and Storage: Recent Advances and Feature Perspective

et al. 2022

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The exponential increase in global energy demand in daily life prompts us to search for a bioresource for energy production and storage. Therefore, in developing countries with large populations, there is a need for alternative energy resources to compensate for the energy deficit in an environmentally friendly way and to be independent in their energy demands. The objective of this review article is to compile and evaluate the progress in the development of quantum dots (QDs) for energy generation and storage. Therefore, this article discusses the energy scenario by presenting the basic concepts and advances of various solar cells, providing an overview of energy storage systems (supercapacitors and batteries), and highlighting the research progress to date and future opportunities. This exploratory study will examine the systematic and sequential advances in all three generations of solar cells, namely perovskite solar cells, dye-sensitized solar cells, Si cells, and thin-film solar cells. The discussion will focus on the development of novel QDs that are economical, efficient, and stable. In addition, the current status of high-performance devices for each technology will be discussed in detail. Finally, the prospects, opportunities for improvement, and future trends in the development of cost-effective and efficient QDs for solar cells and storage from biological resources will be highlighted.

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“…Even though CQDS and GQDs have promising applications in diverse fields, this review article highlights, the latest developments in the field of green synthesis of carbon‐based QDs from low‐cost, environmentally friendly natural resources using a simple and facile synthetic approach, size control, modification strategies, and their application in energy storage systems and devices. In recent years, significant progress has been reported toward the synthesis of carbon‐based quantum dots by green synthetic pathway using natural precursors, as reviewed by Das et al, 40 Mahesh et al, 59 Sharma et al, 60 Bressi et al 61 and Desmond et al 62 . Recently Hong et al have provided an impression of the latest achievements with CQD/GQDs and their composites for electrochemical applications with special prominence on energy storage and electrocatalysis 21 .…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of zero‐dimensional carbon nanostructures in energy storage applications—A review

Yadav

Daniel²

2023

Energy Storage

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Over the past decade, carbon quantum dots (CQDs) and graphene quantum dots (GQDs) have emerged as the supreme category of zero‐dimensional (0D) carbonaceous nanostructures having potential applications in energy storage and optoelectronics devices. These zero‐dimensional carbon nanostructures have captivated excellent consideration and have ascended as a substitute to traditional metal‐based semiconductor QDs due to their intriguing estates like excellent photoluminescence, quantum yield, scalability, tuneable emission, biocompatibility, chemical inertness, and excellent hydrophilicity. These unique properties of zero‐dimensional carbon materials have inspired researchers to employ them in bioimaging, optoelectronic, catalytic, and energy storage applications. The last couple of years have perceived an incredible rise in the green synthetic strategies of carbon‐based QDs and their applications and this review familiarizes the reader with the current and significant progress in the synthesis of carbon‐based QDs/GQDs from various natural precursors with their quantum yields as well as intriguing applications in diverse fields. In addition, this communication not only delivers critical perceptions toward the development in the field of advanced energy devices but also highlights the advancements of these nanosized carbonaceous materials in the energy storage devices such as in supercapacitors and batteries. Also, it focuses on the broad scope of carbon nanomaterials and nanotechnology towards cutting‐edge research and expansion in the arena of energy storage applications of carbon‐based QDs.

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New paradigms for the synthesis of graphene quantum dots from sustainable bioresources

Abstract: Emerging Graphene Quantum Dots (GQDs)—a new member of the carbon family—have attracted a tremendous research interest in the scientific community due to their small size and tunable photoluminescence properties.

Cited by 15 publications

References 28 publications

Eco-Friendly and Sustainable Pathways to Photoluminescent Carbon Quantum Dots (CQDs)

Eco-Friendly and Sustainable Pathways to Photoluminescent Carbon Quantum Dots (CQDs)

Bioresource-Functionalized Quantum Dots for Energy Generation and Storage: Recent Advances and Feature Perspective

Green synthesis of zero‐dimensional carbon nanostructures in energy storage applications—A review

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