Experimental studies of TiO2 nanoparticles synthesized by sol-gel and solvothermal routes for DSSCs application

Dubey, R.S.; Krishnamurthy, Katta Venkata; Singh, Shyam

doi:10.1016/j.rinp.2019.102390

Cited by 75 publications

(38 citation statements)

References 15 publications

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“…For the application of titanium dioxide as an effective catalyst, it is very important to optimize the catalyst synthesis process [2] . The excellent properties like non-toxic nature, high stability, high mechanical resistance, high refractive index, long-term photo stability, effective electronic and optical properties makes this material a prime candidate for various applications [3] such as photocatalysis [4] , dye sensitized solar cells [5] , electrochemistry [6] , semiconductors [7] and waste water treatment [8] .…”

Section: Introductionmentioning

confidence: 99%

Improved direct synthesis of TiO2 catalyst using sonication and its application for the desulfurization of thiophene

Tiple

Sinhmar

Gogate

2021

Ultrasonics Sonochemistry

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Highlights Development of best synthesis process for TiO 2 catalyst using ultrasound. Lower particle size and uniform morphology can be obtained using ultrasound. Performance of catalytic activity evaluated for the desulfurization of thiophene. UV and US in combination with oxidant/catalyst gives best treatment approach. Role of solvent in affecting desulfurization of thiophene demonstrated.

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Section: Introductionmentioning

confidence: 99%

Improved direct synthesis of TiO2 catalyst using sonication and its application for the desulfurization of thiophene

Tiple

Sinhmar

Gogate

2021

Ultrasonics Sonochemistry

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“…Comparable studies showing solar energy conversion efficiencies lower than that reported in Figure 11 were reported [81,82]. Nevertheless, this is the first time sol gel-synthesized C-N-TiO 2 has been employed in a photovoltaic application and we positively believe that succinct optimization of sol gel chemical composition as well as electrical parameters in the fabricated perovskite solar cell, the choice of appropriate film support, and perhaps following synthetic procedures suggested by Dubey et al [75], Wu et al [83], and Junfang et al [84] could improve C-N-TiO 2 solar energy conversion efficacy.…”

Section: Discussionmentioning

confidence: 48%

“…Indeed, the efficiency of a solar cell is determined by measuring the amount of current density following applied voltage during light irradiation. Dubey et al [75] conveyed that the main characteristic for a particular solar cell includes the short-circuit current density (Jsc), the open circuit voltage (Voc), and the fill factor (FF), which were explored in our study and the trends observed are presented in Figures 11 and 12.…”

Section: Discussionmentioning

confidence: 99%

Spin Coating Immobilisation of C-N-TiO2 Co-Doped Nano Catalyst on Glass and Application for Photocatalysis or as Electron Transporting Layer for Perovskite Solar Cells

et al. 2020

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Producing active thin films coated on supports resolves many issues of powder-based photo catalysis and energy harvesting. In this study, thin films of C-N-TiO2 were prepared by dynamic spin coating of C-N-TiO2 sol-gel on glass support. The effect of spin speed and sol gel precursor to solvent volume ratio on the film thickness was investigated. The C-N-TiO2-coated glass was annealed at 350 °C at a ramping rate of 10 °C/min with a holding time of 2 hours under a continuous flow of dry N2. The C-N-TiO2 films were characterised by profilometry analysis, light microscopy (LM), and scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS). The outcomes of this study proved that a spin coating technique followed by an annealing process to stabilise the layer could be used for immobilisation of the photo catalyst on glass. The exposure of C-N-TiO2 films to UV radiation induced photocatalytic decolouration of orange II (O.II) dye. The prepared C-N-TiO2 films showed a reasonable power conversion efficiency average (PCE of 9%) with respect to the reference device (15%). The study offers a feasible route for the engineering of C-N-TiO2 films applicable to wastewater remediation processes and energy harvesting in solar cell technologies.

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“…Thus, this process enables better control of the shape, size distribution and crystallinity of TiO 2 NPs in comparison with the hydrothermal method. TiO 2 nanostructures of different morphologies can be obtained and tailored by manipulating several processing parameters, including the type of solvent and titanium precursor, molar ratio of reagents, addition of surfactant, reaction temperature and time [207][208][209][210][211][212]. For instance, TiO 2 nanorods can be synthesized in TTIP, benzyl alcohol (BzOH) and acetic acid (AA) at 150 • C for 8 h. The molar ratio of TTIP/AA is kept at 1: 4 [208].…”

Section: Hydrothermal/solvothermal Synthesismentioning

confidence: 99%

Visible-Light Active Titanium Dioxide Nanomaterials with Bactericidal Properties

2020

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This article provides an overview of current research into the development, synthesis, photocatalytic bacterial activity, biocompatibility and cytotoxic properties of various visible-light active titanium dioxide (TiO2) nanoparticles (NPs) and their nanocomposites. To achieve antibacterial inactivation under visible light, TiO2 NPs are doped with metal and non-metal elements, modified with carbonaceous nanomaterials, and coupled with other metal oxide semiconductors. Transition metals introduce a localized d-electron state just below the conduction band of TiO2 NPs, thereby narrowing the bandgap and causing a red shift of the optical absorption edge into the visible region. Silver nanoparticles of doped TiO2 NPs experience surface plasmon resonance under visible light excitation, leading to the injection of hot electrons into the conduction band of TiO2 NPs to generate reactive oxygen species (ROS) for bacterial killing. The modification of TiO2 NPs with carbon nanotubes and graphene sheets also achieve the efficient creation of ROS under visible light irradiation. Furthermore, titanium-based alloy implants in orthopedics with enhanced antibacterial activity and biocompatibility can be achieved by forming a surface layer of Ag-doped titania nanotubes. By incorporating TiO2 NPs and Cu-doped TiO2 NPs into chitosan or the textile matrix, the resulting polymer nanocomposites exhibit excellent antimicrobial properties that can have applications as fruit/food wrapping films, self-cleaning fabrics, medical scaffolds and wound dressings. Considering the possible use of visible-light active TiO2 nanomaterials for various applications, their toxicity impact on the environment and public health is also addressed.

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Experimental studies of TiO2 nanoparticles synthesized by sol-gel and solvothermal routes for DSSCs application

Cited by 75 publications

References 15 publications

Improved direct synthesis of TiO2 catalyst using sonication and its application for the desulfurization of thiophene

Improved direct synthesis of TiO2 catalyst using sonication and its application for the desulfurization of thiophene

Spin Coating Immobilisation of C-N-TiO2 Co-Doped Nano Catalyst on Glass and Application for Photocatalysis or as Electron Transporting Layer for Perovskite Solar Cells

Visible-Light Active Titanium Dioxide Nanomaterials with Bactericidal Properties

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