Quick and low cost synthesis of sulphur doped carbon dots by simple acidic carbonization of sucrose for the detection of Fe3+ ions in highly acidic environment

Naik, Vaibhav M.; Gunjal, Dattatray B.; Gore, Anil H.; Pawar, Samadhan P.; Mahanwar, Sunanda T.; Anbhule, Prashant V.; Kolekar, Govind B.

doi:10.1016/j.diamond.2018.07.018

Cited by 66 publications

(25 citation statements)

References 31 publications

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“…Sulphur-doped C-Dots has recently received a great deal of publicity, as sulphur atoms can also provide a new level of energy or to control the initial bandgap of C-Dots (Naik et al, 2018). Gao et al have synthesized multiple colour emissive C-Dots from green, yellow to red by doping sulphur (S) elements and water in a solvothermal method (Gao et al, 2020) by using o-phenylenediamine and N-dimethylformamide (DMF) as the carbon precursor.…”

Section: Heteroatom Dopingmentioning

confidence: 99%

A Review on Multifunctional Carbon-Dots Synthesized From Biomass Waste: Design/ Fabrication, Characterization and Applications

et al. 2021

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Carbon-Dots (C-Dots) have drawn much attention in recent years owing to their remarkable properties such as high biocompatibility, low toxicity, nano-scale size, and ease of modification with good tuneable photoluminescence performance. These unique properties have led C-Dots to become a promising platform for bioimaging, metal ion sensing and an antibacterial agent. C-Dots can be prepared using the top-down and bottom-up approaches, in which the latter method is commonly used for large scale and low-cost synthesis. C-Dots can be synthesized using sustainable raw materials or green biomass since it is environmentally friendly, in-expensive and most importantly, promotes the minimization of waste production. However, using biomass waste to produce high-quality C-Dots is still a matter of concern waiting for resolution, and this will be the main focus of this review. Fundamental understanding of C-Dots such as structure analysis, physical and chemical properties of C-Dots, various synthesis methodology and type of raw materials used are also discussed and correlated comprehensively. Additionally, factors affecting the bandgap of the C-Dots and the strategies to overcome these shortcomings are also covered. Moreover, formation mechanism of C-Dots focusing on the hydrothermal method, option and challenges to scale up the C-Dots production are explored. It is expected that the great potential of producing C-Dots from agricultural waste a key benefit in view of their versatility in a wide range of applications.

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Section: Heteroatom Dopingmentioning

confidence: 99%

A Review on Multifunctional Carbon-Dots Synthesized From Biomass Waste: Design/ Fabrication, Characterization and Applications

et al. 2021

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“…CDs can be tuned to exhibit their desired fluorescent and other properties by doping foreign atoms [ 81 ]. In order to improve the properties of CDs for further applications, various nonmetals such as boron [ 82 ], nitrogen [ 83 ], phosphorous [ 84 ], sulfur [ 85 ], silicon [ 86 ], and halogens (F, Cl) [ 87 ] have been doped into the CDs, using either the “top-down” or “bottom-up” approaches. B, N, and P- doped CDs were recently synthesized by Kumar et al, using hydrothermal and sonochemical methods [ 45 ].…”

Section: Synthesis Of Hybrid and Doped Cdsmentioning

confidence: 99%

Synthesis of Doped/Hybrid Carbon Dots and Their Biomedical Application

2022

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Carbon dots (CDs) are a novel type of carbon-based nanomaterial that has gained considerable attention for their unique optical properties, including tunable fluorescence, stability against photobleaching and photoblinking, and strong fluorescence, which is attributed to a large number of organic functional groups (amino groups, hydroxyl, ketonic, ester, and carboxyl groups, etc.). In addition, they also demonstrate high stability and electron mobility. This article reviews the topic of doped CDs with organic and inorganic atoms and molecules. Such doping leads to their functionalization to obtain desired physical and chemical properties for biomedical applications. We have mainly highlighted modification techniques, including doping, polymer capping, surface functionalization, nanocomposite and core-shell structures, which are aimed at their applications to the biomedical field, such as bioimaging, bio-sensor applications, neuron tissue engineering, drug delivery and cancer therapy. Finally, we discuss the key challenges to be addressed, the future directions of research, and the possibilities of a complete hybrid format of CD-based materials.

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“…While N-dopants improve the quantum yield on CQDs [130], S-dopants are good ligands for metal ions [131]. Thus, S-doped carbon dots have been widely employed for the detection of Fe 3+ ions [132,133,134]. One example is the sensor reported in [135], which exhibited high selectivity for Fe 3+ at pH 0.…”

Section: Heavy Metal Ion Sensors Based On Fluorescent Quantum Dotsmentioning

confidence: 99%

Fluorescent Sensors for the Detection of Heavy Metal Ions in Aqueous Media

Elosúa

Corres

et al. 2019

Sensors

209

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Due to the risks that water contamination implies for human health and environmental protection, monitoring the quality of water is a major concern of the present era. Therefore, in recent years several efforts have been dedicated to the development of fast, sensitive, and selective sensors for the detection of heavy metal ions. In particular, fluorescent sensors have gained in popularity due to their interesting features, such as high specificity, sensitivity, and reversibility. Thus, this review is devoted to the recent advances in fluorescent sensors for the monitoring of these contaminants, and special focus is placed on those devices based on fluorescent aptasensors, quantum dots, and organic dyes.

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Quick and low cost synthesis of sulphur doped carbon dots by simple acidic carbonization of sucrose for the detection of Fe3+ ions in highly acidic environment

Cited by 66 publications

References 31 publications

A Review on Multifunctional Carbon-Dots Synthesized From Biomass Waste: Design/ Fabrication, Characterization and Applications

A Review on Multifunctional Carbon-Dots Synthesized From Biomass Waste: Design/ Fabrication, Characterization and Applications

Synthesis of Doped/Hybrid Carbon Dots and Their Biomedical Application

Fluorescent Sensors for the Detection of Heavy Metal Ions in Aqueous Media

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