Synthesis of Carbon Dots from Kitchen Waste: Conversion of Waste to Value Added Product

Himaja, A. L.; Karthik, P.; Sreedhar, B.; Singh, Surya Prakash

doi:10.1007/s10895-014-1465-1

Cited by 96 publications

(36 citation statements)

References 27 publications

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“…Many CD syntheses report the use of biomass, particularly sourced from plant matter, which is essentially a huge source of naturally derived polysaccharides combined with smaller amounts of other organic molecules, e.g., amino acids, which can act as dopant agents. Some examples include the use of garlic [50], orange juice [51], onion waste [52] and general kitchen waste [53]. For the purpose of this review, we will concentrate on describing examples where defined and commercially available polysaccharides are used for the synthesis of FCDs and how these materials compare to CDs made using their monomeric counterparts.…”

Section: Reviewmentioning

confidence: 99%

Fluorescent carbon dots from mono- and polysaccharides: synthesis, properties and applications

Hill¹,

Galan²

2017

Beilstein J. Org. Chem.

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Fluorescent carbon dots (FCDs) are an emerging class of nanomaterials made from carbon sources that have been hailed as potential non-toxic replacements to traditional semiconductor quantum dots (QDs). Particularly in the areas of live imaging and drug delivery, due to their water solubility, low toxicity and photo-and chemical stability. Carbohydrates are readily available chiral biomolecules in nature which offer an attractive and cheap starting material from which to synthesise FCDs with distinct features and interesting applications. This mini-review article will cover the progress in the development of FCDs prepared from carbohydrate sources with an emphasis on their synthesis, functionalization and technical applications, including discussions on current challenges. 675

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Section: Reviewmentioning

confidence: 99%

Fluorescent carbon dots from mono- and polysaccharides: synthesis, properties and applications

Hill¹,

Galan²

2017

Beilstein J. Org. Chem.

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“…The particle size of the BCDs is between 4 and 8 nm, and their QY is approximately 14.2% . In addition, kitchen waste (peels of fresh fruits/vegetables), cauliflower leaves, fish scales, and office waste paper can be used as biomass carbon sources to prepare BCDs, and the BCDs prepared have excellent properties. BCDs prepared from different leaf sources by simple and green method have different properties.…”

Section: Methods For the Synthesis Of Bcdsmentioning

confidence: 99%

Biomass‐Derived Carbon Dots and Their Applications

Meng

Bai

Wang

et al. 2019

Energy & Environ Materials

318

167

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Carbon dots (CDs) have received much attention due to their superior properties including water solubility, low toxicity, biocompatibility, small size, fluorescence, and ease of modification. The use of a more environmentally friendly method to prepare high‐quality CDs is still an urgent question waiting for solve. The use of renewable, inexpensive, and green biomass resources not only meets the urgent need for large‐scale synthesis biomass CDs (BCDs), but also promotes the development of sustainable applications. In this article, we summarize the representative methods for synthesizing BCDs in green and simple ways using biomass as a carbon source, including hydrothermal carbonization, and microwave, pyrolysis. The prepared BCDs have a uniform particle size distribution and a relatively high throughput, which provide a method to scale up industrial production. Moreover, the integration of specific optical properties, that is, tunable photoluminescence and up‐photoluminescence, has led to remarkable use in bioimaging, sensing, and drug delivery. But the current review is not particularly comprehensive for BCDs. Therefore, we now provide a review focusing on the synthesis, properties, and recent advances in BCDs in biosensing, bioimaging, optoelectronics, and catalytic applications.

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“…Among various nonlinear optical materials, ‘green' carbon source CDs have shown the maximum nonlinear optical properties. Recent articles have demonstrated CQD synthesis using many natural materials and with an option to re‐use natural waste . Orange waste peels are underused natural resources and it is still challenging to use these leftover residues effectively.…”

Section: Introductionmentioning

confidence: 99%

Facile preparation of high fluorescent carbon quantum dots from orange waste peels for nonlinear optical applications

et al. 2019

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A facile and eco‐friendly hydrothermal method was used to prepare carbon quantum dots (CQDs) using orange waste peels. The synthesized CQDs were well dispersed and the average diameter was 2.9 ± 0.5 nm. Functional group identification of the CQDs was confirmed by Fourier transform infrared spectrum analysis. Fluorescence properties of the synthesized CQDs exhibited blue emission. The fluorescence quantum yield of the CQDs was around 11.37% at an excitation wavelength of 330 nm. The higher order nonlinear optical properties were examined using a Z‐scan technique and a continuous wave laser that was operated at a wavelength of 532 nm. Results demonstrated that the synthesis of CQDs can be considered as promising for optical switching devices, bio‐scanning, and bio‐imaging for optoelectronic applications.

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Synthesis of Carbon Dots from Kitchen Waste: Conversion of Waste to Value Added Product

Cited by 96 publications

References 27 publications

Fluorescent carbon dots from mono- and polysaccharides: synthesis, properties and applications

Fluorescent carbon dots from mono- and polysaccharides: synthesis, properties and applications

Biomass‐Derived Carbon Dots and Their Applications

Facile preparation of high fluorescent carbon quantum dots from orange waste peels for nonlinear optical applications

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