Photoluminescence properties of pure, Fe-doped and surfactant-assisted Fe-doped tin-oxide nanoparticles

Sujatha, K.; Seethalakshmi, T.; Sudha, A.; Shanmugasundaram, O.L.

doi:10.1007/s12034-020-02169-5

Cited by 12 publications

(11 citation statements)

References 49 publications

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“…There are symmetrical and asymmetrical stress modes belonging to the acetate group (−COOH) in the 1374 cm –1 wavenumber range. Metal oxide semiconductors usually have an absorption band below 1000 cm –1 due to interatomic vibrations …”

Section: Resultsmentioning

confidence: 99%

“…Metal oxide semiconductors usually have an absorption band below 1000 cm −1 due to interatomic vibrations. 37 The surface morphologies of Sn@ZnO and Zn@SnO 2 particles were characterized by SEM at different magnitudes. The hexagonal plate-like structures of Sn@ZnO nanoparticles range in size from 552 to 812 nm.…”

Section: Resultsmentioning

confidence: 99%

“…After drying in the oven at 100 °C for 24 h, Zn@SnO 2 crystals were obtained. In order to improve crystallinity, crystals were annealed for 2 h at 500 °C in an ambient atmosphere …”

Section: Methodsmentioning

confidence: 99%

“…In order to improve crystallinity, crystals were annealed for 2 h at 500 °C in an ambient atmosphere. 37 For the preparation of Sn@ZnO powder, 0.5 M Zn-(CH 3 COO) 2 •2H 2 O was dissolved in 50 mL of DW. SnCl 2 • 2H 2 O prepared in a concentration of 0.1 M with 20 mL of water was added dropwise to the solution, and the reaction mixture was mixed for 30 min.…”

Section: Methodsmentioning

confidence: 99%

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Improvement of the CO₂ Sensitivity: HPTS-Based Sensors along with Zn@SnO₂ and Sn@ZnO Additives

Zeyrek Ongun,

Oguzlar

2023

ACS Omega

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Fluorescent pH-sensitive indicator dye, 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS), has become known as a preferred alternative for continuous and accurate monitoring of dissolved and/or gaseous CO 2 in chemistry, medical, and biochemical research. The objective of this work is to enhance the HPTS dye's CO 2 sensitivity in the presence of Zn@SnO 2 and Sn@ZnO additive particles. Sol−gel synthesized metal oxide semiconductors (MOSs) were characterized using XRD, XPS, and SEM. The fluorophore dye and the MOS additives were embedded in the ethyl cellulose (EC) polymeric matrix to prepare the sensing thin films. The steady-state and decay kinetic measurements of the HPTS-based composites were obtained by PL spectroscopy for the concentration ranges of 0−100% p[CO 2 ]. As expected, the addition of MOSs improves the sensor characteristics, specifically its CO 2 sensing ability, linear response range, and relative signal change compared to the free form of HPTS. The CO 2 sensitivities of the HPTS-based thin films were found at 17.6, 23.2, and 40.9 for the undoped, Zn@SnO 2, -doped, and Sn@ZnO-doped forms of the HPTS, respectively. Additionally, the response and recovery times of the HPTS-based sensor agent with Sn@ZnO were measured as 10 and 460 s, respectively. The obtained results demonstrate that materials composed of HPTS with MOSs are potential candidates for CO 2 sensors.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…After drying in the oven at 100 °C for 24 h, Zn@SnO 2 crystals were obtained. In order to improve crystallinity, crystals were annealed for 2 h at 500 °C in an ambient atmosphere …”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of the CO₂ Sensitivity: HPTS-Based Sensors along with Zn@SnO₂ and Sn@ZnO Additives

Zeyrek Ongun,

Oguzlar

2023

ACS Omega

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“…41-1445, a =b = 0.4738 nm and c = 0.3187 nm, space group P42/nm (136)]. The peaks appeared at 26.74 , 32.87 , 36.11 and 58.70 can be indexed to the lattice planes of (110), (101), (200) and (002), respectively[27][28][29]. Pure and single phase Sb-doped SnO 2 sample formation has been con rmed by no extra diffraction peak due to any impurity.…”

mentioning

confidence: 99%

Pure and Antimony-doped Tin Oxide Nanoparticles for Fluorescence Sensing and Dye Degradation Applications

Deepika

Singh

Rekhi³

et al. 2023

Preprint

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Recently, fluorescent antimony doped tin oxide nanoparticles have attracted an enormous attention due to its low cost, chemical inertness and stability. In this study, we demonstrated a quick, facile and eco-friendly, economic hydrothermal/solvothermal synthetic method for the synthesis of fluorescent antimony doped (1%, 3%, 5%, 7% and 10%) tin oxide nanoparticles. The antimony doping in a reasonable range can change the properties of SnO2 and there occur a lattice distortion with increase in doping evidenced through crystallographic studies. Particular morphology and smaller size results in best photocatalytic degradation percentage of 80.86 % for malachite green (MG) dye with 10% Sb-doped SnO2in aqueous media. Moreover, fluorescent sensing studies shows highest quenching efficiency (27%) by 10 mol% Sb-doped SnO2 as compared to other undoped and doped samples with Cd2+ concentration 0.11μg/ml in the drinking water followed by limit of detection (LOD) as 0.0152 μg/ml. Thus, antimony doped tin oxide nanoparticles can be a promising material for fast and low cost analysis of cadmium ions.

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Role of preparation conditions on the pseudocapacitor properties of SnO2 nanoparticles by co-precipitation method

Priyadharsini,

Saravanakumar,

Sakunthala

et al. 2024

J Mater Sci: Mater Electron

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Photoluminescence properties of pure, Fe-doped and surfactant-assisted Fe-doped tin-oxide nanoparticles

Cited by 12 publications

References 49 publications

Improvement of the CO₂ Sensitivity: HPTS-Based Sensors along with Zn@SnO₂ and Sn@ZnO Additives

Improvement of the CO₂ Sensitivity: HPTS-Based Sensors along with Zn@SnO₂ and Sn@ZnO Additives

Pure and Antimony-doped Tin Oxide Nanoparticles for Fluorescence Sensing and Dye Degradation Applications

Role of preparation conditions on the pseudocapacitor properties of SnO2 nanoparticles by co-precipitation method

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Photoluminescence properties of pure, Fe-doped and surfactant-assisted Fe-doped tin-oxide nanoparticles

Cited by 12 publications

References 49 publications

Improvement of the CO2 Sensitivity: HPTS-Based Sensors along with Zn@SnO2 and Sn@ZnO Additives

Improvement of the CO2 Sensitivity: HPTS-Based Sensors along with Zn@SnO2 and Sn@ZnO Additives

Pure and Antimony-doped Tin Oxide Nanoparticles for Fluorescence Sensing and Dye Degradation Applications

Role of preparation conditions on the pseudocapacitor properties of SnO2 nanoparticles by co-precipitation method

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Product

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Improvement of the CO₂ Sensitivity: HPTS-Based Sensors along with Zn@SnO₂ and Sn@ZnO Additives

Improvement of the CO₂ Sensitivity: HPTS-Based Sensors along with Zn@SnO₂ and Sn@ZnO Additives