Synthesis of Nanosized Titania by sol Gel Route

Hada, Renu; Kabra, Sakshi; Katara, Stuti; Rani, Ashu; Devra, Vijay; Amritphale, S. S.

doi:10.15373/2249555x/apr2013/16

Cited by 2 publications

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“…Recent studies of nickel oxide nanoparticles (NiO NPs) prepared by a cost-effective and ecofriendly method have been used to evaluate its antimicrobial activity [14] and Manigandan et al used NiO NPs for photocatalytic degradation of Rhodamine B [15]. Various research groups have synthesized NiO NPs by the hydrothermal [16] solvothermal process [1], chemical precipitation [17], emulsion [18], solid state chemical decomposition [19] thermal decomposition [20,21] solgel [22] and reverse micro-emulsion method [23]. NiO synthesized by microwave thermal treatment by Cho et al has been used as an anode material in fuel cells [24].…”

Section: Introductionmentioning

confidence: 99%

Combustion synthesis and characterization of NiO nanoparticles

Ramasami

Reddy

Balakrishna

2015

Materials Science in Semiconductor Processing

122

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Section: Introductionmentioning

confidence: 99%

Combustion synthesis and characterization of NiO nanoparticles

Ramasami

Reddy

Balakrishna

2015

Materials Science in Semiconductor Processing

122

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“…At low pH the amount of adsorbed humic or fulvic acids is high and thus lowers aggregation [43,44]. Moreover, synthesis by the sol-gel route using ethylene glycol as a gelling agent results in 19 nm-sized anatase [45]. Other organic gelation agents are ammonia [46] or citric acid and acetyl acetone as complex agents [47].…”

Section: Industrial Production Of Titania Polymorphsmentioning

confidence: 99%

Sol-Gel Processes in Micro-Environments of Black Shale: Learning from the Industrial Production of Nanometer-Sized TiO2 Polymorphs

Schulz

2019

ChemEngineering

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Micro-environments in black shale are reactors for geochemical reactions that differ from the bulk scale. They occur in small isolated pores of several 10 s to 100 s of nanometers without or with limited ionic exchange by diffusion to the surrounding matrix. The example of the formation of titania polymorphs brookite (and anatase) in black shale demonstrates that pH < 4 of the pore waters or lower must prevail to enable dissolution of Ti-bearing precursors followed by the precipitation of these metastable solids. Comparably low pH is applied during the industrial production of nanometer-sized brookite or anatase by sol-gel methods. The process parameters during industrial production such as low pH, negative Eh, or low ionic strength (to promote agglomeration) allow a comparison with parameters during geochemical processes leading to titania formation in black shale. Sol-gel processes are suggested herein as key geochemical processes in micro-environments of black shale in order to understand the formation of single brookite crystals or agglomerates on a nanometer scale.

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Synthesis of Nanosized Titania by sol Gel Route

Cited by 2 publications

References 0 publications

Combustion synthesis and characterization of NiO nanoparticles

Combustion synthesis and characterization of NiO nanoparticles

Sol-Gel Processes in Micro-Environments of Black Shale: Learning from the Industrial Production of Nanometer-Sized TiO2 Polymorphs

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