DSpace Home
→
Browsing by Author

Browsing by Author "Warrier, K G K"

Now showing items 1-20 of 97

Al2O3 @ TiO2-A simple sol-gel strategy to the synthesis of low temperature sintered alumina-aluminium titanate composites through a core-shell approach

Jayasankar, M; Ananthakumar, S; Mukundan, P; Wunderlich, W; Warrier, K G K (Elsevier, 2008)

A simple sol-gel based core-shell approach for the synthesis of alumina-aluminium titanate composite is reported. Alumina is the core and titania is the shell. The coating of titania has been performed in aqueous medium ...
Aluminosilicates with varying alumina-silica ratios: synthesis via a hybrid sol-gel route and structural characterization

Padmaja, P N; Moothetty, P; Berry, F J; Mortimer, M; Warrier, K G K (Royal Society of Chemistry, 2010)

Aluminosilicates with varying Al(2)O(3):SiO(2) molar ratios (3 : 1, 3 : 2, 3 : 3 and 3 : 4) have been synthesized using a hybrid sol-gel route using boehmite sol as the precursor for alumina and tetraethyl orthosilicate ...
Ambient pressure drying: a successful approach for the preparation of silica and silica based mixed oxide aerogels

Aravind, P R; Shajesh, P; Soraru, G D; Warrier, K G K (Springer, 2010)

Silica aerogels have received much attention in recent years as it has got a wide range of properties like high surface area, low density, high porosity, low dielectric constant, low thermal conductivity. Recently to make ...
Antiwetting silica-gelatin nanohybrid and transparent nano coatings synthesised through an aqueous sol-gel process

Smitha, S; Shajesh, P; Mukundan, P; Warrier, K G K (Springer, 2007)

Hydrophobic silica-biopolymer hybrid has been synthesised using colloidal silica as the precursor for silica, gelatin as the biopolymer counterpart and vinyltrimethoxysilane as the surface modifier through a sol-gel method. ...
Aqueous colloidal sol-gel route to synthesize nanosized ceria-doped titania having high surface area and increased anatase phase stability

Pradeepan, P; Baiju, K V; Mukundan, P; Krishna Pillai, P; Warrier, K G K (Springer, 2007)

Nanocrystalline sol-gel derived titania doped with ceria (1, 2, 5 and 10-mole%) has been prepared from titanyl oxysulphate. The titania doped with 5-mole% CeO2 after calcining to 500 degrees C, possesses specific surface ...
An aqueous sol-gel synthesis of chromium (III) doped mesoporous titanium dioxide for visible light photocatalysis

Jaimy, K B; Ghosh, S K; Sankar, S; Warrier, K G K (Elsevier, 2011)

Nanoparticles of titanium dioxide doped with Cr (3+) ions have been prepared through an aqueous sol-gel method. The mesoporous nature of both pure and Cr(3+) doped TiO(2) powders, with specific surface area of 7.4 and 6.6 ...
Aqueous sol-gel synthesis of lanthanum phosphate nano rods starting from lanthanum chloride precursor

Sankar, S; Warrier, K G K (Springer, 2011)

Aqueous sol-gel technique is reported for synthesizing nanosize, rod shaped lanthanum phosphate particles starting from lanthanum chloride, which is suitable for variety of applications such as machinable ceramics, thermal ...
An aqueous sol–gel route to synthesize nanosized lanthanadoped titania having an increased anatase phase stability for photocatalytic application

Baiju, K V; Sibu, C P; Rajesh Komban; Krishna Pillai, P; Mukundan, P; Warrier, K G K; Wunderlich, W (Elsevier, 2005)

A novel synthesis method is reported, involving peptisation and doping of lanthana on colloidal sol-gel titania derived from titanyl sulphate, where the anatase phase has a high stability above 800degreesC and a specific ...
Bifunctional Lanthanum Phosphate Substrates as Novel Adsorbents and Biocatalyst Supports for Perchlorate Removal

Sankar Sasidharan; Prajeesh Gangadharan, P V; Anupama, V N; Krishnakumar, B; Hareesh, P; Balagopal, N N; Warrier, K G K; Hareesh, U S (Elsevier, 2014-06-30)

Porous lanthanum phosphate substrates, obtained by an environmentally benign colloidal forming process employing methyl cellulose, are reported here as excellent adsorbents of perchlorate with >98% efficiency and with 100% ...
Calcination and associated structural modifications in boehmite and their influence on high temperature densification of alumina

Padmaja, P N; Ghosh, S K; Warrier, K G K (Elsevier, 2011)

A systematic study is reported on the calcination of boehmite and its associated structural changes, and their effect on densification features. Boehmite precursor gels have been calcined in the temperature range 250-1200 ...
CO2 absorption studies on mixed alkali Orthosilicates containing rare-earth second-phase additives

Subha, P V; Nair, B N; Hareesh, P; Peer Mohamed, A; Yamaguchi, T; Warrier, K G K; Hareesh, U S (American Chemical Society, 2015)

Lithium silicate containing eutectic orthosilicate mixtutes developed by a solid-state, route displayed excellent characteristics as Carbon dioxide absorbents at elevated temperature, showing absorption capacity of 2.50 ...
Co3O4–C3N4 p–n Nano-Heterojunctions for the Simultaneous Degradation of a Mixture of Pollutants Under Solar Irradiation

Suyana, P; Priyanka, G; Nair, B N; Peer Mohamed, A; Warrier, K G K; Hareesh, U S (Royal Society of Chemistry, 2017-11-07)

Environmental remediation employing sunlight-active semiconductor nano-heterostructures provides effective solutions for handling emerging contaminants through a greener approach. Herein, we report the creation of ultrafine ...
Comparing Effects of Silver and Iron Deposition on Dye-Adsorption in Dark Using Anatase-Titania Nanotubes Catalyst

Harsha, N; Babitha, K B; Shukla, S; Warrier, K G K (American Scientific Publishers, 2011-11)

Silver (Ag) and iron (Fe) deposited nanotubes of anatase-TiO2 (ATN) have been processed via the combination of hydrothermal and ultraviolet-reduction techniques. The samples have been characterized using the scanning ...
Comparing ultraviolet and chemical reduction techniques for enhancing photocatalytic activity of silver oxide/silver deposited nanocrystalline anatase titania

Priya, R; Baiju, K V; Shukla, S; Biju, S; Reddy, M L P; Patil, K; Warrier, K G K (American Chemical Society, 2009)

Silver oxide/silver have been deposited, with varying silver concentration (0.01-10 mol %), on the surface of sol-gel derived nanocrystal line anatase titania using two different techniques, namely the ultraviolet reduction ...
Correlating photoluminescence and photocatalytic activity of mixed-phase nanocrystalline titania

Baiju, K V; Zachariah, A; Shukla, S; Biju, S; Reddy, M L P; Warrier, K G K (Springer, 2009)

Mixed-phase nanocrystalline titania with varying rutile-content has been synthesized via solvent mixing and calcination treatment of sol-gel derived nanocrystalline anatase and rutile precursors. The mixed-phase nanocrystalline ...
CuAl2O4 formation and its effect on alpha-Al2O3 phase evolution on calcination of metal ion doped boehmite xerogels

James, T; Padmanabhan, M; Warrier, K G K; Sugunan, S (Elsevier, 2007)

The formation characteristics of CuAl2O4 from sol-gel boehmite doped with Cu2+, ion and also the effect of dopants like Cu2+, Ti4+ and Cc(4+) on calcination and concentration dependent structural evolution of alpha-Al2O3 ...
Decolorization of aqueous solution containing Organic Synthetic-Dye via Dark-Catalysis process using hydrothermally synthesized semiconductor-oxides nanotubes

Babitha, K B; Warrier, K G K; Shukla, S (American Scientific Publishers, 2013-09-29)

The removal of an organic synthetic-dye from an aqueous solution via the adsorption and decolorization processes, typically occurring in the dark-condition on the surface of semiconductor-oxides nanotubes-based adsorbents, ...
An 'Eco-friendly' all aqueous sol gel process for multi functional ultrafiltration membrane on porous tubular alumina substrate

Manjumol, K A; Shajesh, P; Baiju, K V; Warrier, K G K (Elsevier, 2011)

An all aqueous sol gel process for developing photoactive titania ultrafiltration membranes on tubular macroporous commercial alumina substrate is presented. The precursor for titania was titanylsulfate and a multilayer ...
Effect of 3-glycidoxypropyltrimethoxysilane precursor on the properties of ambient pressure dried silica aerogels

Shajesh, P; Smitha, S; Aravind, P R; Warrier, K G K (Springer, 2009)

The effect of an organically modified precursor, 3-glycidoxypropyltrimethoxysilane in an ambient pressure process involving aging in silane solution for silica aerogels is presented. The effect of increasing trialkoxysil ...
Effect of Abrasive Waterjet Machining on LaPO4/Y2O3 Ceramic Matrix Composite

Balamurugan, K; Uthayakumar, M; Sankar, S; Hareesh, U S; Warrier, K G K (Australian Ceramic Society, 2018-06)

LaPO4/Y2O3 composite is identified as potential materials that possess low thermal conductivity and superior hardness and finds its application as high thermal barrier material and also a functional material. The objective ...

Now showing items 1-20 of 97

Search DSpace

Advanced Search

Browse

All of DSpace

Browsing by Author "Warrier, K G K"

Browsing by Author "Warrier, K G K"

Search DSpace

Browse

All of DSpace

My Account