K
Krishna Gopakumar Warrier
Researcher at National Institute for Interdisciplinary Science and Technology
Publications - 219
Citations - 5157
Krishna Gopakumar Warrier is an academic researcher from National Institute for Interdisciplinary Science and Technology. The author has contributed to research in topics: Boehmite & Anatase. The author has an hindex of 36, co-authored 219 publications receiving 4589 citations. Previous affiliations of Krishna Gopakumar Warrier include Academy of Scientific and Innovative Research & Council of Scientific and Industrial Research.
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Journal ArticleDOI
Photocatalytic Activity of Sol−Gel-Derived Nanocrystalline Titania
TL;DR: In this paper, the photocatalytic activity of nanocrystalline titania (TiO2) powders has been investigated as a function of processing and material parameters through the decomposition of the methylene blue (MB) dye under exposure to ultraviolet (UV) radiation (λ = 200−400 nm) in an aqueous solution.
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Synergistic Effect in Photocatalysis As Observed for Mixed-Phase Nanocrystalline Titania Processed via Sol−Gel Solvent Mixing and Calcination
Ajesh K. Zachariah,K. V. Baiju,Satyajit Shukla,K. S. Deepa,J. James,Krishna Gopakumar Warrier +5 more
TL;DR: In this paper, the photocatalytic activity of mixed-phase nanocrystalline titania (TiO 2) processed via sol−gel SMC is measured by monitoring the degradation of the methylene blue dye in an aqueous solution, under UV-radiation exposure, using the UV−vis absorption spectroscope.
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Characterisation of stoichiometric sol–gel mullite by fourier transform infrared spectroscopy
TL;DR: In this paper, the structural changes and coordination of Al and Si in the mullite system as a function of temperature (60-1400°C) were studied. But the results of the FTIR spectral patterns of the gel and the gel calcined at 200°C show bands corresponding to Al-O−Al and Si−O−Si vibrations, while at higher temperatures hydroxyl groups and organics present have been removed.
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Dehydroxylation and high temperature phase formation in sol-gel boehmite characterized by Fourier transform infrared spectroscopy
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Photoregenerable, Bifunctional Granules of Carbon-Doped g-C3N4 as Adsorptive Photocatalyst for the Efficient Removal of Tetracycline Antibiotic
Suyana Panneri,Priyanka Ganguly,Midhun Mohan,Balagopal N. Nair,Abdul Azeez Peer Mohamed,Krishna Gopakumar Warrier,Unnikrishnan Nair Saraswathy Hareesh +6 more
TL;DR: In this article, a simple aqueous spray drying process was used to obtain high surface area porous architecture of C3N4 nanosheets by using 2 wt% poly vinyl alcohol as binder.