Optical properties of SnO2 nanostructures prepared via one-step thermal decomposition of tin (II) chloride dihydrate

Al-Gaashani, R.; Radiman, Shahidan; Tabet, Nouar; Daud, Abdul Razak

doi:10.1016/j.mseb.2012.02.006

Cited by 39 publications

(17 citation statements)

References 36 publications

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“…S2 in Supporting Information) in CPPC 0.2 , STEPC 0.2 , and STUWEPC 0.2 indicates SnCl 2 ·2H 2 O decomposition to Sn 4 (OH) 6 Cl 2 and HCl and H 2 O release . Additionally, CPPC 0.2 , STEPC 0.2 , and STUWEPC 0.2 showed a weight loss between 200–300 °C owing to the conversion of Sn 4 (OH) 6 Cl 2 to liquid Sn and SnOCl 2 . The formed intermediates between 300–400 °C for all three catalysts were further decomposed to SnO 2 nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

Energy‐Efficient 2‐Ethylhexyl Acetate Synthesis with a Nano‐Sn‐Hydroxyapatite Photocatalyst

Mukhopadhyay

Chakraborty

2020

Chem Eng & Technol

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A nano‐tin oxide grafted natural‐hydroxyapatite photocatalyst was fabricated using a greener approach involving sequential application of solar‐type and ultrasound‐wave energy (STUWE). The protocol provided 76 % higher surface area, 59 % more surface acidity, and 15 % reduced band gap energy than conventionally prepared photocatalysts (CPPCs). The efficacy of the STUWE‐promoted photocatalyst (STUWEPC) was optimized for maximization of 2‐ethylhexyl acetate yield (97 %) employing an energy‐efficient solar‐type/ultrasound synergistic batch reactor. A considerably lower activation energy, estimated by Langmuir‐Hinshelwood kinetics, and higher reusability characteristics (upto 8 recycles) of the STUWEPC than CPPC highlights the superiority of the STUWE procedure.

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Section: Resultsmentioning

confidence: 99%

Energy‐Efficient 2‐Ethylhexyl Acetate Synthesis with a Nano‐Sn‐Hydroxyapatite Photocatalyst

Mukhopadhyay

Chakraborty

2020

Chem Eng & Technol

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“…The loss of chlorine as Cl2 or some oxychlorine is also occurring in the process. Tin oxychlorines could be the intermediates forming and evaporating during the heating, as discussed by others [27,28] for the heating of the divalent tin salt SnCl22H2O.…”

Section: Sncl45h2omentioning

confidence: 92%

“…The evaporation is ended by an exothermic reaction (F), most probably the formation of tin oxide. Tin oxychlorine species have been proposed to form and evaporate during the oxide formation process [27,28]. Assuming SnO2 as the only product, the deposition efficiency (ηeff) was 23 % which is almost double that of the tetrachloride salt.…”

Section: Sncl22h2omentioning

confidence: 99%

Deposition efficiency in the preparation of ozone-producing nickel and antimony doped tin oxide anodes

Sandin

Cheritat

Bäckström

et al. 2017

J. Electrochem. Sci. Eng.

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“…6.The band gap energy of ZnO without PVP modification was found to bẽ 3.22 eV which decreased from 3.20 eV (b-ZnO-Nanowalls) to 3.14 eV (c-ZnO-Nanorods) as a result of increasing concentration of PVP, depicted in Table 3. We believe that the observed difference of the optical band gap may be related to the variation of the stoichiometry of ZnO samples and the concentration of the point defects associated with them [32]. Dutta et al [33] have reported a significant change in optical band gap of ZnO due to defects with discrete states or increase localized energy levels within the band gap [34].…”

Section: Uv-vis Absorption Spectroscopymentioning

confidence: 92%

Optical investigation of various morphologies of ZnO nanostructures prepared by PVP-assisted wet chemical method

Parra

Haque

2015

Opt. Spectrosc.

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Various morphologies of zinc oxide have been successfully synthesized via simple poly-vinylpyrrolidone (PVP) assisted wet chemical method. Herein, a comparative study between three different morphologies of ZnO, namely nanoparticles (NP's), nanowalls (NW's) and nanorods (NR's) has been presented. The structural and spectroscopic results reveal that the addition of PVP as capping agent greatly influences the structural and optical behavior of ZnO. X-ray diffraction (XRD) results confirmed pure phase ZnO nanostructures with well crystallinity. It was observed from results that increasing concentration of poly-vinylpyrrolidone from half to equimolar ratio lattice imperfections decrease. ZnO nanorods have biggest crystallite size compared with nanowalls and nanoparticles, confirmed through X-ray diffraction study. The formation of three different morphologies was observed through scanning electron microscopy (SEM). The FTIR and Raman spectroscopic results reveal significant shifts for these ZnO nanostructures in the typical modes assigned to Zn-O, which intercorrelated with the XRD results. The optical band gap energies were found to be decreased from ~3.22 eV for ZnO nanoparticles to 3.14 eV for ZnO nanorods. It was investigated from photoluminescence study that PVP capped ZnO nanostructures have reduced surface trap states and therefore the UV emission and visible emission regions overlap to form a single band. The physical properties and optical behavior realized that, as prepared samples might be applied in energy storage devices and solar cells.

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Optical properties of SnO2 nanostructures prepared via one-step thermal decomposition of tin (II) chloride dihydrate

Cited by 39 publications

References 36 publications

Energy‐Efficient 2‐Ethylhexyl Acetate Synthesis with a Nano‐Sn‐Hydroxyapatite Photocatalyst

Energy‐Efficient 2‐Ethylhexyl Acetate Synthesis with a Nano‐Sn‐Hydroxyapatite Photocatalyst

Deposition efficiency in the preparation of ozone-producing nickel and antimony doped tin oxide anodes

Optical investigation of various morphologies of ZnO nanostructures prepared by PVP-assisted wet chemical method

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