Green synthesized carbon quantum dots from Prosopis juliflora leaves as a dual off-on fluorescence probe for sensing mercury (II) and chemet drug

Pourreza, Nahid; Ghomi, Matineh

doi:10.1016/j.msec.2018.12.141

Cited by 86 publications

(33 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Morphology of CQDs was characterized by a high-resolution transmission electron microscope (HRTEM), field emission scanning electron microscope (FESEM), and energy-dispersive spectrometer (EDS). As is shown in Figure 1(a), the CQDs were found to have a quasispherical shape with a size lower than 10 nm, which is consistent with the results reported by previous literature [41,42]. It can be seen from the inset of Figure 1(a) that the prepared CQDs possess a lattice structure with a lattice spacing of 0.14 nm, which can be attributed to the (102) diffraction plane of graphite carbon [43].…”

Section: Resultssupporting

confidence: 89%

Detection of Ascorbic Acid Using Green Synthesized Carbon Quantum Dots

et al. 2019

View full text Add to dashboard Cite

In this work, carbon quantum dots (CQDs) were synthesized by microwave irradiation and were electropolymerized on glassy carbon electrode (GCE) to establish an electrochemical sensor for the selective detection of ascorbic acid (AA). Electrochemical behaviors of the prepared sensor were investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). Herein, two wide linear responses were obtained in ranges of 0.01-3 mM and 4-12 mM with a low detection limit of 10 μM to AA. High sensitivities (44.13 μA-1 μM-1 cm-2, 9.66 μA-1 μM-1 cm-2, respectively) corresponding to the linear ranges were also achieved. In addition, the electrochemical sensor exhibited good selectivity and robust anti-interference ability toward AA in the presence of dopamine (DA) and uric acid (UA). These results showed that this sensor can be used as a promising tool to detect AA in real complex systems.

show abstract

Section: Resultssupporting

confidence: 89%

Detection of Ascorbic Acid Using Green Synthesized Carbon Quantum Dots

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Several C-Dots have been developed for metal ions, anions, and molecules as direct fluorescent sensors. Fe 3+ is the most commonly observed in the process of ion detection and relatively few other ions such as Hg 2+ (Pourreza and Ghomi, 2019), Ag + (Zhong et al, 2017) and Cu 2+ (Rong et al, 2017). Fe 3+ are the most frequently observed ions because functional groups such as amino groups, carboxyl groups and hydroxyl groups are typically present on the C-Dots layer.…”

Section: Sensing Of Pollutants and Toxic Chemicals In Foodmentioning

confidence: 99%

“…Hg 2+ ion is highly toxic as it is one of most poisonous, harmful and omnipresent pollutants. Pourreza and Ghomi, reported the green synthesis of C-Dots from leaves of Prosopis juliflora as a dual off-on fluorescence probe for sensing mercury (II) ions via hydrothermal route (Pourreza and Ghomi, 2019). The C-Dots have an outstanding selectivity and sensitivity towards Hg 2+ with a low detection limit of 1.26 ng ml −1 under ideal conditions.…”

Section: Sensing Of Pollutants and Toxic Chemicals In Foodmentioning

confidence: 99%

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

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

“…And the monitoring of Hg 2+ in lake water and serum samples was realized. In addition, the carbon dots from green tea, [ 143 ] apple juice, [ 5 ] hair, [ 13 ] and prosopis juliflora leaves [ 175 ] could also achieve the detection of Hg 2+ . Besides, biomass carbon dots could also apply to detecting other different metal ions such as Cu 2+ , Ag + , Cr 6+ , Cr 3+ , As 3+ , and Co 2+ and their LOD and related linear detection ranges were shown in Table 2.…”

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

View full text Add to dashboard Cite

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.

show abstract

Green synthesized carbon quantum dots from Prosopis juliflora leaves as a dual off-on fluorescence probe for sensing mercury (II) and chemet drug

Cited by 86 publications

References 64 publications

Detection of Ascorbic Acid Using Green Synthesized Carbon Quantum Dots

Detection of Ascorbic Acid Using Green Synthesized Carbon Quantum Dots

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

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

Contact Info

Product

Resources

About