Selective spectrofluorimetric determination of sulfide ion using manganese doped ZnS quantum dots as luminescent probe

Rajabi, Hamid Reza; Shamsipur, Mojtaba; Khosravi, Ali; Khani, Omid; Yousefi, Mostafa

doi:10.1016/j.saa.2013.01.045

Cited by 110 publications

(24 citation statements)

References 64 publications

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“…Therefore, developing a rapid and sensitive method for monitoring sulfide ions is highly important to ensure human health safety. Great progress has been made regarding sulfide ions detect devices in the past several years, such as chromatography [21], titration [22], extraction [23], fluorimetry [24], spectrophotometry [25], and an electrochemical method [26]. Considering practicality and convenience, fluorimetry method is acceptable.…”

Section: Introductionmentioning

confidence: 99%

Graphene quantum dots combined with copper(II) ions as a fluorescent probe for turn-on detection of sulfide ions

Peng

Xiong

et al. 2015

Microchim Acta

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A fluorescent probe for the sensitive and selective determination of sulfide ions is presented. It is based on the use of graphene quantum dots (GQDs) which emit strong and stable blue fluorescence even at high ionic strength. Copper(II) ions cause aggregation of the GQDs and thereby quench fluorescence. The GQDs-Cu(II) aggregates can be dissociated by adding sulfide ions, and this results in fluorescence turn on. The change of fluorescence intensity is proportional to the concentration of sulfide ions. Under optimal conditions, the increase in fluorescence intensity on addition of sulfide ions is linearly related (r 2 =0.9943) to the concentration of sulfide ions in the range from 0.20 to 20 μM, and the limit of detection is 0.10 μM (at 3 σ/s). The fluorescent probe is highly selective for sulfide ions over some potentially interfering ions. The method was successfully applied to the determination of sulfide ions in real water samples and gave recoveries between 103.0 and 113.0 %.

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Section: Introductionmentioning

confidence: 99%

Graphene quantum dots combined with copper(II) ions as a fluorescent probe for turn-on detection of sulfide ions

Peng

Xiong

et al. 2015

Microchim Acta

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“…Ni 2+ and Co 2 + ) were prepared based on a procedure previously reported [34,35]. Accordingly, for the synthesis of ZnS QDs doped with 3% of Ni and Co impurities, firstly, 250 mL aqueous solution of Zn 2+ and dopant (0.1 molL À1 ) was prepared with a mole ratio of 3.0 in doubly distillated water, and the solution was inserted in a three necked flask.…”

Section: Synthesis Of Pure and Doped Zns Qdsmentioning

confidence: 99%

A comparison investigation on photocatalytic activity performance and adsorption efficiency for the removal of cationic dye: Quantum dots vs. magnetic nanoparticles

Rajabi

Arjmand

Kazemdehdashti

et al. 2016

Journal of Environmental Chemical Engineering

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“…In the capping agent effect on the morphology of QDs, it is possible to suggest that the capping agents can cover the particles, and therefore, the particles do not coalesce to form bigger particles, even after an extensive period of time [45]. However, some aggregations between the particles may be occurring, lead to larger particles.…”

Section: Photocatalytic Activity Of Qdsmentioning

confidence: 99%

Photocatalytic Activity of Quantum Dots

Rajabi¹

2016

Semiconductor Photocatalysis - Materials, Mechanisms and Applications

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In recent years, nanoscale semiconductors have attracted great interest due to their unique structural, optical and electronic properties, which arise due to their large surface-to-volume ratio and quantum confinement effect. Quantum dots (QDs) as zerodimensional semiconductor nanomaterials, which are confined to a size of 2-8 nm in three dimensions, are defined as particles with physical dimensions smaller than the exciton Bohr radius. One of the attractive research fields in recent years is the synthesis of various sizes and shapes of semiconductor material nanoparticles as doped with different dopants. The aim of this chapter is to focus on the photocatalytic activity of QDs as new, green and efficient nanophotocatalysts.

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Selective spectrofluorimetric determination of sulfide ion using manganese doped ZnS quantum dots as luminescent probe

Cited by 110 publications

References 64 publications

Graphene quantum dots combined with copper(II) ions as a fluorescent probe for turn-on detection of sulfide ions

Graphene quantum dots combined with copper(II) ions as a fluorescent probe for turn-on detection of sulfide ions

A comparison investigation on photocatalytic activity performance and adsorption efficiency for the removal of cationic dye: Quantum dots vs. magnetic nanoparticles

Photocatalytic Activity of Quantum Dots

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