Photocatalytic activity of SnO2 nanoparticles

Govindarajan, Raghav; Murali, K. R.

doi:10.1007/s10800-022-01676-z

Cited by 20 publications

(10 citation statements)

References 39 publications

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“…The procedure for obtaining tin oxide lms is published [10].Tin oxide thin lms formed by immersing micro glass into the viscous solution were withdrawing at 1 cm/min. After this step, the following procedure was employed (i) Drying for 15 min in air oven (ii)Post heating at 400-6000C X-ray diffraction -Philips x-ray unit CuKα Optical transmission -U 3400 Hitachi spectrometer Surface morphology -SEM-JEOL 7000F DSSC performance is judged based on incident photon to current e ciency (IPCE).…”

Section: Methodsmentioning

confidence: 99%

Dye Sensitized Solar Cell (DSSC) performance of Tin Oxide thin films deposited by dip coating and doctor blade technique

Ramanathan,

Murali

et al. 2024

Preprint

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In this work, we investigate two different approaches to the determination of tin oxide material's DSSC efficiency. Tin oxide thin-film coating is the first, and sol gel acrylamide (from gel precipitation) is the method used to create tin oxide nanopowder. The properties of tin oxide films and tin oxide powder (electrical, optical and structural) were investigated. Tin oxide films were sensitized in ruthenium (II) (R535, N3-dye, Solaronix) bis (2,2-bipyridyl-4-4-di-carboxylate) dye solution for 12 hours at room temperature. The counter electrode was an FTO substrate coated with carbon paste. To build the dye-sensitized solar cell (DSSC), the carbon counter electrode was clamped against the dye-sensitized tin oxide photoelectrode. The electrolyte (0.5M KI, 0.05M I2, 0.05M 4-tert-butylpridine) was filled capillary force then poured into the inter-electrode gap. The area of the active cell was 0.25 cm2. The cell was exposed to radiation using a 250 W Xenon lamp fitted with an infrared and ultraviolet blocking filter. The average grain size in this work was 20 nm, which results in a conversion efficiency of 1.375%. At 100 mW/cm2, the stimulated incident light causes an open circuit voltage and short circuit current density of 0.475 V and 3.0 mA cm− 2. An alternative process involves depositing films on FTO substrates (5 ohms/sq) using tin oxide nanopowder coated by doctor blade technique, using SnO2 powder that is produced via the sol gel acrylamide procedure. It is feasible to produce films with varying grain sizes using this method. The experimental findings show that, in comparison to alternative deposition techniques, the doctor blade technique yielded SnO2 films suitable for use as a photoelectrode in dye-sensitized solar cells (DSSCs). With an average grain size of 120 nm and a conversion efficiency of 3.84%, the best device found in this work has an 0.75 V (Voc) and 8.0 mA cm− 2 (Jsc) respectively at 100 mW/cm2 of simulated incident light. This result is comparable with earlier report on undoped tin oxide based DSSC.

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Section: Methodsmentioning

confidence: 99%

Dye Sensitized Solar Cell (DSSC) performance of Tin Oxide thin films deposited by dip coating and doctor blade technique

Ramanathan,

Murali

et al. 2024

Preprint

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“…When compared to a pure SnO2 sample, the SnxNb1xO2 solid solution sample performed much better in terms of photocatalytic CO2 reduction. Ramanathan and Murali [126] investigated the photocatalytic degradation behaviour of SnO2 NPs for MB, MO, RhB, and textile dyes under UV-Visible light radiation. The pseudo-first-order rate constants of four dyes were calculated from observation and measurement.…”

Section: Some Important Current Studiesmentioning

confidence: 99%

Advances in Sno<sub>2</sub>-Based Nanomaterials for Photocatalysis, Supercapacitors, and Antibacterial Activities

Joshi¹,

Singh²,

Upadhyay³

et al. 2022

Preprint

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Tin (IV) oxide nanoparticles (SnO2 NPs) have received a lot of interest because of their interesting features. SnO2 NPs have proven productive in a range of fields, including water purification, supercapacitors, batteries, antibacterial and antioxidant agents, and others. SnO2-based nanoparticles found a wide range of applications after incorporating materials with varying chemical compositions. SnO2 NPs and their nanocomposites have been used effectively as antibacterial agents against various pathogenic bacteria, photocatalysts for dye degradation, and electrode materials for supercapacitors (SCs). This article covers the characteristics of SnO2 NPs, SnO2 nanocomposite materials, applications of SnO2 NPs and their composite materials, including antibacterial, energy storage, and photocatalysis, as well as some significant recent studies.

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“…[1] Many metal oxidesbased semiconductors, such as TiO 2 , ZnO, ZrO 2 , SnO 2 , WO 3 , and CuO, have been developed over the years. [2][3][4][5][6][7] Titanium dioxide (TiO 2 ) has been the most extensively investigated semiconductor. TiO 2 possesses a high surface area, acceptable bandgap, and adaptable operating techniques.…”

Section: Introductionmentioning

confidence: 99%

“…The ability to absorb visible light and suppress recombination of the charge carriers are two critical factors for choosing a promising semiconductor photocatalyst [1] . Many metal oxides‐based semiconductors, such as TiO 2 , ZnO, ZrO 2 , SnO 2 , WO 3 , and CuO, have been developed over the years [2–7] . Titanium dioxide (TiO 2 ) has been the most extensively investigated semiconductor.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Ponceau‐4R and Brilliant Blue Degradation using Mesoporous TiO₂ Nanoparticles with Activated Carbon as Support Material

Ernawati,

Hing Wong,

Amrullah

et al. 2023

ChemistrySelect

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Biomass wastes are inexpensive and readily available to be converted to activated carbon (AC) support material for photocatalysts. This work first synthesized the AC from tamarind fruit shells and then dispersed TiO2 nanoparticles onto the AC to generate AC/TiO2 composites via the ultrasonic‐assisted sol‐gel method. Most TiO2 nanoparticles were uniformly distributed and deposited onto the AC, forming four stable different AC/TiO2 composites. Compared to the pure TiO2 (i. e., 177.19 m2 g−1), the optimal AC/TiO2 (1 : 5) composite exhibited significantly higher specific surface area (i. e., 281.43 m2 g−1). TiO2 anatase phase in the composite enhanced the photocatalytic activity. AC/TiO2 (1 : 5) also exhibited the Pseudo‐Second‐Order Type 1 model, yielding the best dye degradation kinetic fitting of up to 98.4 % under ultraviolet (UV) light. A possible photocatalytic mechanism of dye degradation was proposed. This work provides insights into synthesizing a TiO2 composite using a low‐cost and readily available AC as a support material to promote the photocatalytic activity.

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Photocatalytic activity of SnO2 nanoparticles

Cited by 20 publications

References 39 publications

Dye Sensitized Solar Cell (DSSC) performance of Tin Oxide thin films deposited by dip coating and doctor blade technique

Dye Sensitized Solar Cell (DSSC) performance of Tin Oxide thin films deposited by dip coating and doctor blade technique

Advances in Sno<sub>2</sub>-Based Nanomaterials for Photocatalysis, Supercapacitors, and Antibacterial Activities

Enhanced Ponceau‐4R and Brilliant Blue Degradation using Mesoporous TiO₂ Nanoparticles with Activated Carbon as Support Material

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Photocatalytic activity of SnO2 nanoparticles

Cited by 20 publications

References 39 publications

Dye Sensitized Solar Cell (DSSC) performance of Tin Oxide thin films deposited by dip coating and doctor blade technique

Dye Sensitized Solar Cell (DSSC) performance of Tin Oxide thin films deposited by dip coating and doctor blade technique

Advances in Sno<sub>2</sub>-Based Nanomaterials for Photocatalysis, Supercapacitors, and Antibacterial Activities

Enhanced Ponceau‐4R and Brilliant Blue Degradation using Mesoporous TiO2 Nanoparticles with Activated Carbon as Support Material

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Product

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Enhanced Ponceau‐4R and Brilliant Blue Degradation using Mesoporous TiO₂ Nanoparticles with Activated Carbon as Support Material