Green synthesis of N, S co-doped carbon quantum dots from triflic acid treated palm shell waste and their application in nitrophenol sensing

Soni, Harnish; Pamidimukkala, Padmaja

doi:10.1016/j.materresbull.2018.08.033

Cited by 58 publications

(18 citation statements)

References 57 publications

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“…Soni et al prepared N, S co-doped CDs with a bright green PL emission by the triflic acidic cleavage of palm shell powder. The sizes of GQDs could be tuned by changing the length of the amino chains [45]. And it should be noted that PL quantum yield and up-conversion properties of GQDs could also be tuned by further surface passivation.…”

Section: Top-down Approaches 211 Chemical Exfoliationmentioning

confidence: 99%

Carbon Dots: Synthesis, Properties and Applications

Ren²,

et al. 2021

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

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Section: Top-down Approaches 211 Chemical Exfoliationmentioning

confidence: 99%

Carbon Dots: Synthesis, Properties and Applications

Ren²,

et al. 2021

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“…[ 135 ] N,S‐CQDs with bright green fluorescent were prepared using palm shell powder and metafluoric acid as raw materials, which could be used as fluorescent probes for nitrophenol and realizing the sensitivity detection of NP, DNP, TNP. [ 136 ] The blue‐green fluorescent N, S, P‐CQDs prepared by hydrothermal method using natural foxtail millet as the carbon source possess high QY (∼21.2%) and long fluorescence lifetime (∼2.05 ns), realizing the sensitive detection of iron ions. [ 137 ] Nitrogen doping plays a very critical role in improving the properties of quantum dots.…”

Section: Basic Characterization and Properties Of Biomass Carbon Dotsmentioning

confidence: 99%

“…[ 184–186 ] Soni et al. [ 136 ] used palm shell waste as biomass carbon source to synthesize N,S‐CQDs which could be applied to the detection of nitrophenol. Moreover, Sun et al.…”

Section: Application Of Biomass Carbon Dots In Sensingmentioning

confidence: 99%

Recent advances of biomass carbon dots on syntheses, characterization, luminescence mechanism, and sensing applications

et al. 2021

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Carbon dots have attracted much attention due to their high fluorescence intensity, easy modification, good stability, and biocompatibility. However, the realization of low‐cost mass production of high‐quality carbon dots still faces great challenges. Biomass is of non‐toxic and environmentally friendly organism, but a lot of biomass is treated as waste for burning and landfill at present, causing irreparable pollution to the environment. In fact, many biomass resources are ideal candidates for preparing carbon dots. This review focuses on carbon dots including carbon quantum dots (CQDs) and graphene quantum dots (GQDs) which using biomass as carbon source on the aspects of plants and their derivatives, animals and their derivatives and municipal waste. The characterization of the structure and composition of biomass carbon dots, the regulation of fluorescence color and the methods of improving quantum yield (QY) including heteroatom doping and surface modification are introduced in detail. Moreover, biomass carbon dots for detecting metal ions and non‐metal molecules and their quenching mechanism are emphatically introduced in addition to summarizing the luminescence mechanism, and some promising prospects and challenges in this uplifting field are discussed.

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“…CQDs have been made from a variety of natural carbon sources, according to previous studies) such as citric acid, [14,61,58,61,[63][64][65][66][67][68][69][70][71][72][73]79,80,83,84] lotus roots, [85] acyclic acid, [5] EDTA, [86] methyl-β-cyclodextrin, [87] [C 4 mim][Cys], [88,89] L-cysteine, [56,80,91,92] scallions, [93] bean pod, [65] ammonium citrate (AC), [94] casein, [95] MEATG, [96] thiomalic acid, [97] willow catkin cellulose-based biowaste, [98,99,100] palm shell powder, [101] green tea leaf, [102] citric acid monohydrate, [103] sodium citrate, [104] cigarette butts, [105] DMSO, [106] garlic, [107] casein, [109] rosa indica, [109] water chestnut and onion,…”

Section: Raw Materials Used For the Fabrication Of Cqdmentioning

confidence: 99%

Nitrogen and Sulfur Co‐Doped Carbon Quantum Dots for Sensing Applications: A Review

Somaraj

Mathew

Abraham³

et al. 2022

ChemistrySelect

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Carbon quantum dots (CQDs) have emerged in the last decade, outperforming other members of the carbon family due to remarkable properties such as fluorescence, cytocompatibility, photostability, and other chemical properties, which have led to an increasing number of applications in bioimaging, sensing, photovoltaic, and medicine. Nature is a treasure trove of exciting precursors, which inspires constant persuasion of safe synthetic routes. Doped CQDs, in particular, exhibit excellent luminous characteristics and have been effectively used in various applications. Among the different doping methods used to tune the properties of CQDs, nitrogen (N) and sulfur (S) are the most commonly used elements with comparable atomic sizes, strong valence bonds, and similar electronegativity. As a result, the last lustrum has seen a significant increase in several synthetic approaches to NSCQDs. This is an attempt to review the journey of NSCQDs through green and chemical sources of synthesis and their sensing applications.

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Green synthesis of N, S co-doped carbon quantum dots from triflic acid treated palm shell waste and their application in nitrophenol sensing

Cited by 58 publications

References 57 publications

Carbon Dots: Synthesis, Properties and Applications

Carbon Dots: Synthesis, Properties and Applications

Recent advances of biomass carbon dots on syntheses, characterization, luminescence mechanism, and sensing applications

Nitrogen and Sulfur Co‐Doped Carbon Quantum Dots for Sensing Applications: A Review

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