Synthesis and Characterisation of Mesoporous TiO2 Nanoparticles by Novel Surfactant Assisted Sol-gel Method for the Degradation of Organic Compounds

Phattepur, Harish; Siddaiah, Gowrishankar Bychapur; Nagaraju, G.

doi:10.3311/ppch.11789

Cited by 35 publications

(18 citation statements)

References 30 publications

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“…Prepared ZnO and Ag doped ZnO nanoparticles were taken for degradation of methylene blue (MB) using 120 W light for source of radiation. 5, 10, 15, and 20 mg of photocatalyst were added to 100 mL of various concentrations of MB solutions (5,10,15, and 20 ppm) in a HEBER photo reactor [25]. The solution was continuously mixed by passing air in dark for 30 min to confirm adsorption-desorption equilibrium between MB and photocatalyst before irradiation.…”

Section: Photocatalytic Degradation Of Dyementioning

confidence: 99%

Highly porous, honeycomb like Ag–ZnO nanomaterials for enhanced photocatalytic and photoluminescence studies: green synthesis using Azadirachta indica gum

Basavalingiah

Harishkumar

Udayabhanu³

et al. 2019

SN Appl. Sci.

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The preparation of zinc oxide and silver doped zinc oxide nanoparticles using zinc nitrates and silver nitrates as oxidizers and Azadirachta indica gum as a fuel via solution combustion method at 500 °C. The synthesized nanoparticles were characterized by XRD, FTIR, UV-DRS, SEM and TEM studies; these materials were tested for photoluminescence and photocatalytic activity studies. The PXRD data indicated that the synthesized nanoparticles confirmed as hexagonal phase with average crystallite size of 13.33 and 13.34 nm for ZnO and Ag-ZnO respectively. The SEM data revealed that, the material obtained is highly porous and honeycomb like structure. In the photocatalytic degradation of methylene blue, Ag-ZnO nanoparticles have shown the good photocatalytic activity than undoped ZnO nanoparticles. This is due to the presence of Ag on the surface of ZnO catalyst makes the catalyst more sensitive to light and reduce the electron hole recombination. Furthermore, we have also examined the photoluminescence studies for the synthesized materials and it has given the green emission by excitation at 380 nm. In this study, the green synthesis method will produces large quantity of nanomaterials with less time and low cost.

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Section: Photocatalytic Degradation Of Dyementioning

confidence: 99%

Highly porous, honeycomb like Ag–ZnO nanomaterials for enhanced photocatalytic and photoluminescence studies: green synthesis using Azadirachta indica gum

Basavalingiah

Harishkumar

Udayabhanu³

et al. 2019

SN Appl. Sci.

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“…Such a solution is mixed with a second solution of ethanol and distilled water under vigorous stirring for 8 h up to the generation of the gel. The mixture is, then, aged, dried, ground and finally calcined, resulting in a final product with a specific surface area up to 40.10 m 2 /g, a pore volume 0.112 cm 3 /g [38].…”

Section: Synthesis Of Mesoporous Tio2mentioning

confidence: 99%

Scalable Synthesis of Mesoporous TiO2 for Environmental Photocatalytic Applications

et al. 2019

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Increasing environmental concern, related to pollution and clean energy demand, have urged the development of new smart solutions profiting from nanotechnology, including the renowned nanomaterial-assisted photocatalytic degradation of pollutants. In this framework, increasing efforts are devoted to the development of TiO2-based nanomaterials with improved photocatalytic activity. A plethora of synthesis routes to obtain high quality TiO2-based nanomaterials is currently available. Nonetheless, large-scale production and the application of nanosized TiO2 is still hampered by technological issues and the high cost related to the capability to obtain TiO2 nanoparticles with high reaction yield and adequate morphological and structural control. The present review aims at providing a selection of synthetic approaches suitable for large-scale production of mesoporous TiO2-based photocatalysts due to its unique features including high specific surface area, improved ultraviolet (UV) radiation absorption, high density of surface hydroxyl groups, and significant ability for further surface functionalization The overviewed synthetic strategies have been selected and classified according to the following criteria (i) high reaction yield, (ii) reliable synthesis scale-up and (iii) adequate control over morphological, structural and textural features. Potential environmental applications of such nanostructures including water remediation and air purification are also discussed.

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“…B-TiO 2 NPs were synthesized by a simple modified sol-gel method as reported in our earlier work on white TiO 2 [22]. A solution composed of 4 mL of ethanol and 0.9 mL of double-distilled (DD) water was named as A.…”

Section: Sol-gel Synthesis Of B-tio 2 Npsmentioning

confidence: 99%

Robust electrochemistry of black TiO2 as stable and high-rate negative electrode for lithium-ion batteries

Patil

Phattepur

Kishore

et al. 2019

Mater Renew Sustain Energy

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Electrochemically stable black TiO 2 composed of Ti 3+ ions and oxygen vacancies is successfully synthesized by a facile and economic sol-gel method followed by calcination in nitrogen atmosphere at 400 °C for 2 h. Several physicochemical techniques are probed to validate the desired state of the obtained material. The material is formed in a pure state with an average size of 10 nm. The electrochemical studies are conducted for its use as negative electrode for Li-ion batteries. At high current rate of 5 C, the electrodes deliver a high discharge capacity of 226 mA h g −1 even after 150 cycles. Similarly, the electrodes also deliver discharge capacities of 197 and 153 mA h g −1 at current rates of 7 C and 10 C, respectively. The robust electrochemical properties of black TiO 2 including large specific capacities at high current rates and high stability are ascribed to the formation of defective structure, conductive Ti 3+ ions and oxygen vacancies. Keywords Black TiO 2 • High-rate negative electrode • Lithium-ion battery • Ti 3+ ions Electronic supplementary material The online version of this article (

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Synthesis and Characterisation of Mesoporous TiO2 Nanoparticles by Novel Surfactant Assisted Sol-gel Method for the Degradation of Organic Compounds

Cited by 35 publications

References 30 publications

Highly porous, honeycomb like Ag–ZnO nanomaterials for enhanced photocatalytic and photoluminescence studies: green synthesis using Azadirachta indica gum

Highly porous, honeycomb like Ag–ZnO nanomaterials for enhanced photocatalytic and photoluminescence studies: green synthesis using Azadirachta indica gum

Scalable Synthesis of Mesoporous TiO2 for Environmental Photocatalytic Applications

Robust electrochemistry of black TiO2 as stable and high-rate negative electrode for lithium-ion batteries

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