ZnSe nanoparticles prepared by coprecipitation method for photocatalytic applications

Sánchez-Martínez, A.; Ortiz-Beas, J.P.; Huerta-Flores, Ali M.; López-Mena, Edgar R.; Pérez‐Álvarez, J.; Ceballos-Sánchez, O.

doi:10.1016/j.matlet.2020.128702

Cited by 27 publications

(4 citation statements)

References 8 publications

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“…Selenide and telluride metal powder used for preparation of MSe and MTe QDs (M = metals), respectively, are very costly chemicals. [60,[65][66][67] Besides, these chemical methods of synthesis also yield toxic waste materials such as unreacted/excess hazardous reagents like MPA, TOPO, TOP, toluene, dimethyl cadmium, ODE, HAD, OLM, etc. Chemical synthetic routes also lead to air and water pollution.…”

Section: Chemical Synthesis Of Quantum Dots: Advantages and Limitationsmentioning

confidence: 99%

“…[58,59,67] As Na 2 SeO 3 is usually employed during the separation of selenide QDs it generates SeO 2 gas, which is acutely noxious and leads to air hazards. [66,67] Similarly several inorganic pollutants are liberated while using inorganic precursors which are threat to ecosystem in general. [15,60] Dumping is a common practice for waste disposal and so by-products released reach water bodies and influence the aquatic system adversely.…”

Section: Chemical Synthesis Of Quantum Dots: Advantages and Limitationsmentioning

confidence: 99%

“…Metal powder used in chemical synthesis particularly for heavy metal QDs, the excess metal such as Cd, Hg, Pb, Ag, etc creates environmental issues [58,59,67] . As Na 2 SeO 3 is usually employed during the separation of selenide QDs it generates SeO 2 gas, which is acutely noxious and leads to air hazards [66,67] . Similarly several inorganic pollutants are liberated while using inorganic precursors which are threat to ecosystem in general [15,60] .…”

Section: Chemical Synthesis Of Quantum Dots: Advantages and Limitationsmentioning

confidence: 99%

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Biogenesis of Quantum Dots: An Update

et al. 2022

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Quantum dots (QDs) or nanocrystals are luminous semiconductors with dimension in the range from 2 to 20 nm. Owing to the unmatched electronic and optical properties, quantum dots notice applications in various domains such as optoelectronics, sensors, photodetection, transistors, LEDs (light-emitting devices), quantum computing, solar cells, catalysis, medicine, etc. to name a few. The unique quantum effects of nanocrystals can be attuned by modifying their sizes and morphology through various top-down and bottom-up strategies. Biosynthesis or biogenesis is one such newly developed approach for nanomaterial synthesis which relies on the principles of green chemistry and employs living organisms to develop quantum dots with amiable physicochemical properties, low cytotoxicity, and biocompatibility. Biogenic methods make use of biomole-cules and enzymatic processes to detoxify, mineralize and induce nucleation of metals and non-metals to fabricate quantum dots. This review covers recent progress in the biological synthesis of quantum dots have been highlighted. Diverse extracellular and intracellular biogenic methods based on different organisms including algae, bacteria, fungi, plants, protozoa, earthworms, and mammalian blood vessels have been discussed. Moreover, the probable mechanistic pathways of biosyntheses, scope, and applications of bioengineered quantum dots have also been elaborated. This review examines the recent advances made in the field of biogenic quantum dots and also analyzes the upcoming challenges and viewpoints in this promising area of study.

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Section: Chemical Synthesis Of Quantum Dots: Advantages and Limitationsmentioning

confidence: 99%

Section: Chemical Synthesis Of Quantum Dots: Advantages and Limitationsmentioning

confidence: 99%

Section: Chemical Synthesis Of Quantum Dots: Advantages and Limitationsmentioning

confidence: 99%

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Biogenesis of Quantum Dots: An Update

et al. 2022

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“…It is also a strong competitor to other materials for photocatalytic applications owing to its excellent energy band location. ZnSe-based nanostructures, such as ZnO/ZnSe [13,15], Bi 2 S 3 -ZnSe [14], and FeSe 2 /ZnSe [16,17], demonstrate improved photocatalytic performance. Similarly, it is reported that composited polymers act as an active support for nanoparticles for photocatalysis, providing mechanical strength and architectural diversity.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Dye Degradation and Biological Activities of Cu-Doped ZnSe Nanoparticles and Their Insights

Beena

Rayar²,

Ajitha

et al. 2021

Water

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Environmental nanotechnology has received much attention owing to its implications on environmental ecosystem, and thus is promising for the elimination of toxic elements from the aquatic surface. This work focuses on Cu-doped ZnSe nanoparticles using the co-precipitation method. The synthesized Cu-doped ZnSe nanoparticles were examined for structural, optical, and morphological properties with the help of XRD, FTIR, UV/vis diffuse reflection spectroscopy (DRS), FESEM, TEM, and XPS. The synthesized Cu-doped ZnSe nanoparticles revealed the presence of Cu2+ in the ZnSe lattice, which has been shown to take a predominant role for enhanced catalysis in the Cu-doped ZnSe nanoparticles. The synthesized Cu-doped ZnSe nanoparticles were investigated for their catalytic and antibacterial activities. The 0.1 M copper-doped ZnSe nanoparticles exhibited the highest rate of degradation against the methyl orange dye, which was found to be 87%. A pseudo-first-order kinetics was followed by Cu-doped ZnSe nanoparticles with a rate constant of 0.1334 min−1. The gram-positive and gram-negative bacteria were used for investigating the anti-bacterial activity of the Cu-doped ZnSe nanoparticles. The Cu-doped ZnSe nanoparticles exhibited enhanced photocatalytic and antibacterial activity.

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Impact of N+ ion implantation on the properties of ZnSe thin films

Gupta

Chauhan

2021

J Mater Sci: Mater Electron

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ZnSe nanoparticles prepared by coprecipitation method for photocatalytic applications

Cited by 27 publications

References 8 publications

Biogenesis of Quantum Dots: An Update

Biogenesis of Quantum Dots: An Update

Photocatalytic Dye Degradation and Biological Activities of Cu-Doped ZnSe Nanoparticles and Their Insights

Impact of N+ ion implantation on the properties of ZnSe thin films

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