Investigations of CdS and Ag–CdS nanoparticles by X-ray photoelectron spectroscopy

Thakur, Priya; Joshi, Suresh G.; Patil, K.R.

doi:10.1016/j.apsusc.2010.08.035

Cited by 21 publications

(8 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4c), the peak is located at 412.4 eV, which is attributed to divalent Cd. 20 Besides, the S 2p spectrum (Fig. 4d) can be deconvoluted into two peaks which are centred at 168.6 eV and 169.7 eV, respectively, which can be assigned to sulphate species.…”

mentioning

confidence: 99%

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO₄ modified ZnO nanoparticles

et al. 2015

View full text Add to dashboard Cite

A light activated miniature formaldehyde sensor working at room temperature is fabricated by CdSO4 modified ZnO nanoparticles. The CdSO4 is deposited on the surface of the ZnO nanoparticles as a separated phase rather than doping into the lattice of ZnO. The Cd 2+ and SO4 2on the surface play a synergic effect for the high sensitivity to formaldehyde. The sensor shows high sensitivity to formaldehyde, with detection limit lower than 1 ppm while shows no response to ethanol and very weak response to acetone. With engineering efforts, a highly compact prototype formaldehyde sensor is obtained, which is very convenient for portable formaldehyde specific detection.

show abstract

mentioning

confidence: 99%

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO₄ modified ZnO nanoparticles

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The Cd 3d line is represented by a doublet, where the 3d 5/2 and 3d 3/2 spin–orbit components are separated by ∼6.7 eV and have a ratio of 3:2. In the literature, the position of the 3d 5/2 component varies from 404.4 to 406.6 eV, − and such a big difference in the reported values could be related to different structures and surface compositions of CdS nanoparticles and films. The 3d 5/2 binding energy of CdS nanoparticles grown on the as-prepared MWCNTs for 5 min is ∼406.0 eV (Figure a), and it lowers to ∼405.6–405.7 eV with decrease of the CBD and use of the annealed MWCNTs (Figure b).…”

Section: Resultsmentioning

confidence: 96%

Role of Defects in Carbon Nanotube Walls in Deposition of CdS Nanoparticles from a Chemical Bath

et al. 2015

View full text Add to dashboard Cite

Multiwall carbon nanotubes (MWCNTs), as-prepared and annealed in an inert atmosphere, have been used as templates for growth of CdS nanoparticles from an aqueous ammonium solution of cadmium chloride and thiourea. Transmission electron microscopy and Raman spectroscopy revealed that formation of CdS nanocrystals on the raw MWCNT surface proceeds markedly faster than on the annealed one. Xray photoelectron spectroscopy showed a strong difference in the chemical state of the deposited CdS depending on the defect density in the MWCNTs. An interaction of Cd 2+ ions and mixed Cd(II) complexes with a defective graphene fragment was studied using density functional theory. The calculations indicated that, for attachment of Cdcontaining species to the graphitic surface, defects with the dangling carbon bonds are needed. By combining the experimental and theoretical results, a model of CdS nucleation on the MWCNTs was proposed.

show abstract

“…9(d) shows Ag 3d peaks located at a binding energy of 368.82 eV, and splitting of the 3D doublet at 374 eV is attributed due to presence of reduced silver nanoparticles on the surface of CdMoO 4 . 48 From the above results it is clear that there is a marginal difference in the binding energies, which shows the very slight inuence of Ag decoration on the CdMoO 4 surface, with an upshi in binding energies of $0.3. This shows that the coordination environment surrounding Ag was not inuenced by CdMoO 4 .…”

Section: Xps Studymentioning

confidence: 85%

Plasmonic Ag decorated CdMoO₄ as an efficient photocatalyst for solar hydrogen production

et al. 2019

View full text Add to dashboard Cite

show abstract

Investigations of CdS and Ag–CdS nanoparticles by X-ray photoelectron spectroscopy

Cited by 21 publications

References 32 publications

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO₄ modified ZnO nanoparticles

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO₄ modified ZnO nanoparticles

Role of Defects in Carbon Nanotube Walls in Deposition of CdS Nanoparticles from a Chemical Bath

Plasmonic Ag decorated CdMoO₄ as an efficient photocatalyst for solar hydrogen production

Contact Info

Product

Resources

About

Investigations of CdS and Ag–CdS nanoparticles by X-ray photoelectron spectroscopy

Cited by 21 publications

References 32 publications

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO4 modified ZnO nanoparticles

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO4 modified ZnO nanoparticles

Role of Defects in Carbon Nanotube Walls in Deposition of CdS Nanoparticles from a Chemical Bath

Plasmonic Ag decorated CdMoO4 as an efficient photocatalyst for solar hydrogen production

Contact Info

Product

Resources

About

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO₄ modified ZnO nanoparticles

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO₄ modified ZnO nanoparticles

Plasmonic Ag decorated CdMoO₄ as an efficient photocatalyst for solar hydrogen production