Synthesis, Characterization, and Size Control of Zinc Sulfide Nanoparticles Capped by Poly(ethylene glycol)

Allehyani, Saud; Seoudi, R.; Said, Doaa A.; Lashin, Abdelrahman; Abouelsayed, A.

doi:10.1007/s11664-015-3974-3

Cited by 6 publications

(1 citation statement)

References 45 publications

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“…Nanomaterials are commonly defined as materials with an average grain size less than 100 nanometres and at least one dimension in the nanometre range [1]- [3]. Nano-sized particles exist in nature and can be created from a variety of elements, minerals or products [4].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Photocatalytic Application of Different Sizes of Gold Nanoparticles on 4-Nitrophenol

Seoudi¹,

Al-Marhaby²

2016

WJNSE

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In this work, different sizes of gold nanoparticles were synthesized at room temperature by using trisodium citrate as a surfactant stabilizing agent and sodium borohydride as a reducing agent. Transmission Electron Microscopy (TEM) confirmed that the samples were synthesized in spherical shapes with three different particle sizes: 4 nm, 7 nm and 11 nm. Ultraviolet-visible spectra measurements were used to analyze the way that surface plasmon bands were affected by the different particles sizes. The effect of sphere size on photocatalytic reduction of 4-Nitrophenol was then studied and the rate constant of the reduction was calculated to be 0.014 s −1 , 0.0091 s −1 and 0.003 s −1 for particles sizes of 4 nm, 7 nm and 11 nm, respectively. The results obtained indicated that small particles were more active in catalytic reduction due to their high surface energy.

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Section: Introductionmentioning

confidence: 99%