Fluorescent spongy carbon nanoglobules derived from pineapple juice: A potential sensing probe for specific and selective detection of chromium (VI) ions

Sharma, Shelja; Mehta, S.K.; Kansal, Sushil Kumar

doi:10.1016/j.ceramint.2017.02.127

Cited by 45 publications

(14 citation statements)

References 68 publications

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“…1a. A broad diffraction peak located at 2θ = 20 0 with spacing of 0.34 nm was observed, indicating 002 planes of graphitic structure and amorphous nature of C-dots [38]. 2 dhkl = n λ sin θ; n is an integer.…”

Section: Crystal Structure Of the As-synthesized Photocatalystsmentioning

confidence: 97%

Fabrication of novel carbon quantum dots modified bismuth oxide (α-Bi2O3/C-dots): Material properties and catalytic applications

Sharma

Mehta

Ibhadon

et al. 2019

Journal of Colloid and Interface Science

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The present work reports the facile and the template free sonochemical synthesis of a novel catalyst, α-BiO/C-dots, for the degradation of indigo carmine (IC) dye, its simulated dyebath effluent and levofloxacin under visible light catalysis. The compositional, structural, optical and morphological analysis of α-BiO/C-dots was studied using analytical, spectroscopic and microscopic techniques. X-ray diffraction (XRD) results confirmed the presence of a monoclinic phase of α-BiO in the nanocomposite and crystallite size of 28.75 nm. Photoluminescence (PL) and UV-vis diffuse reflectance spectra (UV-DRS) studies showed good optical properties and a band gap of 2.49 eV. The synthesized photocatalyst showed superior visible-light driven photocatalytic activity for the degradation of indigo carmine dye (86% dye degradation in 120 min) compared to pure α-BiO (57%). α-BiO/C-dots also exhibited 79% degradation of antibiotic drug levofloxacin within 120 min, under optimized conditions of pH, catalyst dose and initial dye concentration. Scavenger studies revealed that hydroxyl radicals and electrons played predominant roles in the photocatalytic degradation of IC dye. With respect to total organic carbon (TOC) analysis, 68.8% total organic carbon reduction of the IC dye (10 mg/L) was observed under the same experimental conditions. The catalytic efficiency of C-dots in the photocatalytic process is explained by proposing a degradation mechanism.

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Section: Crystal Structure Of the As-synthesized Photocatalystsmentioning

confidence: 97%

Fabrication of novel carbon quantum dots modified bismuth oxide (α-Bi2O3/C-dots): Material properties and catalytic applications

Sharma

Mehta

Ibhadon

et al. 2019

Journal of Colloid and Interface Science

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“…[4][5][6] Owing to these properties, GQDs have immense potential applications in photovoltaic devices, 7 bioimaging instruments, 8 sensors and biosensors, 9,10 etc. Until now, GQDs have been used as a uorescent probe for the detection of a broad range of analytes such as metal ions, [11][12][13][14][15] organic matter, 16,17 proteins, 18 and other biomolecules. 19,20 Vanillin (Fig.…”

Section: Introductionmentioning

confidence: 99%

One-step synthesis of fluorescent graphene quantum dots as an effective fluorescence probe for vanillin detection

et al. 2021

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“…Carbon dots are new promising carbonaceous materials that have attracted considerable attention in numerous research areas due to their unique physical properties . In the ever‐expanding field of nanomaterial research, researchers are exploring new carbon source materials from natural sources that are simple, of low cost with high performance, and with the possibility of green synthesis a highly desirable factor . Recently, reports have detailed that organic molecules with an extended delocalized π‐electron system possess perfect nonlinear optical values .…”

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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Fluorescent spongy carbon nanoglobules derived from pineapple juice: A potential sensing probe for specific and selective detection of chromium (VI) ions

Cited by 45 publications

References 68 publications

Fabrication of novel carbon quantum dots modified bismuth oxide (α-Bi2O3/C-dots): Material properties and catalytic applications

Fabrication of novel carbon quantum dots modified bismuth oxide (α-Bi2O3/C-dots): Material properties and catalytic applications

One-step synthesis of fluorescent graphene quantum dots as an effective fluorescence probe for vanillin detection

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

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