Ru/TiO₂ Nanostructured Catalysts: Synthesis, Characterization and Catalytic Activity Towards Hydrogenation of Ethyl Levulinate.

Pristine TiO₂ and % Ru/TiO₂ catalysts with different wt.% of Ru (%= 1.5%, 2%, 2.

Degradation of Harmful Organics Using Visible Light Driven N-TiO₂/rGO Nanocomposite.

Nitrogen doped titania over reduced form of graphene oxide (N-TiO₂/rGO) catalysts were synthesized by adopting single step hydrothermal route. All the prepared photocatalysts were thoroughly characterized by using different analytical tools such as XRD, Raman, UV-DRS, FE-SEM and HRTEM. The photocatalytic activities of bare and composite catalysts were evaluated towards the photocatalytic decolourisation/degradation of Methylene blue dye (MB) and Metronidazole antibiotic (MTZ) under visible electromagnetic radiation.

Liquid Phase Esterification of Levulinic Acid into Ethyl Levulinate Over Sulphobenzylated Nanoporous Al-SBA-15 Catalyst.

Value added chemicals, fuels, and fuel additives can be obtained from cheap bio masses such as levulinic acid. Levulinic acid is the dehydration and hydrolysis products of pentoses and hexoses. The present work deals with the synthesis of sulphobenzylated Al-SBA-15, [SO₃H-Bz-Al-SBA-15], characterization by various analytical techniques such as XRD, BET, FT-IR, TGA, DTA, FE-SEM/EDS and HR-TEM/EDX techniques and evaluation of catalytic activity towards esterifi-cation of levulinic acid to ethyl levulinate under mild and non corrosive conditions.

Synthesis of Nanosized ZSM-5/AlKIT-6 Composite Catalysts for Biofuel Production from Non-edible Jatropha Curcas Oil.

Nanosized ZSM-5/AlKIT-6 composite catalyst which comprises of both mesoporous large pore 3D KIT-6 and coke resistant microporous ZSM-5 was synthesized using simple in-situ overgrowth method. AlKIT-6 were coated over nano ZSM-5 with different coating ratios (5%, 10% and 15%) and utilized for biofuel production from non-edible Jatropha curcas oil using catalytic cracking technology. The morphology, porosity, acidity and Si/Al ratio of the synthesized catalysts were characterized using analytical techniques like SEM, TEM, XRD, BET, FTIR, ICP-AES and TPD.

Facile Synthesis, Characterization and Enhanced Photocatalytic Activities of NiWO₄/Nitrogen Doped Reduced Graphene Oxide Nanocomposites.

In this study, we report the synthesis of NiWO₄/nitrogen doped reduced graphene oxide nano composite by one-pot hydrothermal method. The NiWO₄ nano particles were dispersed uniformly on graphene sheets. The as prepared NiWO₄, NiWO₄/5% rGO and NiWO₄/N-5% rGO composites were analytically characterized by Powder X-ray diffraction (XRD), Raman spectroscopy, Diffuse reflectance spectroscopy (DRS-UV), Scanning electron microscopy (SEM) and N₂ adsorption-desorption isotherm.

Photocatalytic Degradation of Textile Reactive Dyes-A Comparative Study Using Nano Silver Decorated Titania-Silica Composite Photocatalysts.

Photocatalytic degradation of commercial textile azo dyes such as Reactive Red 120 (RR 120), Acid Orange 20 (AO 20), Reactive Orange 16 (RO 16) and Congo Red (CR) was studied under UV light and visible light irradiations of wave length 365 nm and 420 nm respectively over bare and modified titania catalysts such as TiO2, 1% Ag/TiO2, 30% TiO2/SiO2 and 1% Ag/30% TiO2/SiO2. On comparison of the catalytic activity of all the synthesized catalysts under UV and Visible irradiations, it was found that the composite catalysts showed higher photocatalytic activity than bare TiO2. Among the catalysts 1% Ag/30% TiO2/SiO2 composite catalyst was the best catalyst for the decolourization of the chosen dyes.

Non-Metal Doped Titania Photocatalysts for the Degradation of Neonicotinoid Insecticides Under Visible Light Irradiation.

Recombination of e-/h+ pair, the major issue of any titania based photocatalytic material, is addressed here by doping non-metals such as C, N, B, F into the lattice of nano TiO2. The as-synthesised catalysts were characterized by using various instrumental techniques such as X-ray diffraction (XRD), UV-Diffuse reflectance spectroscopy (UV-DRS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Nanosize of titania was confirmed by both XRD and TEM studies.

Solvent Free Transesterification of Glycerol Into Glycerol Carbonate Over Nanostructured CaAl Hydrotalcite Catalyst.

Drastic increase in green house gases due to fossil fuels usage urges the mankind to look for alternative fuel resources. Biodiesel is one of the alternative fuels which attracted the attention of many researchers. In recent years, bio-diesel drags much attention as an alternative clean fuel.

BiVO /N-rGO nano composites as highly efficient visible active photocatalyst for the degradation of dyes and antibiotics in eco system.

Herein, we report the synthesis of novel nitrogen doped reduced graphene oxide/ BiVO photo catalyst by single step hydrothermal method. The physicochemical properties of the catalysts were characterized using XRD, N adsorption-desorption, Raman, XPS, SEM TEM, DRS-UV and EIS techniques. The synthesized catalysts were tested for their catalytic activity in the photo degradation of some harmful textile dyes (methylene blue & congo red) and antibiotics (metronidazole and chloramphenicol) under visible light irradiation.

Photocatalytic Degradation of Congored on Silica Supported Ag Impregnated TiO2.

Advanced oxidation process using nano sized silver impregnated titania-silica composite catalysts for the degradation of carcinogenic dye has been investigated. x% Silver/y% Titania/Silica. (x = 1%, 4%, 7% and 10%; and y = 10%, 15%, 20% and 25%), composite photocatalysts were synthesized by a three step process and characterized by using various physicochemical analytical techniques and evaluated for their photocatalytic activities towards decolourization/degradation of Congo red.

Fabrication and textural characterization of nanoporous carbon electrodes embedded with CuO nanoparticles for supercapacitors.

We introduce a novel strategy of fabricating nanoporous carbons loaded with different amounts of CuO nanoparticles via a hard templating approach, using copper-containing mesoporous silica as the template and sucrose as the carbon source. The nature and dispersion of the CuO nanoparticles on the surface of the nanoporous carbons were investigated by x-ray diffraction (XRD), high-resolution scanning electron microscopy (HRSEM) and high-resolution transmission electron microscopy (HRTEM). XRD results reveal that nanoporous carbons with embedded CuO nanoparticles exhibit a well-ordered mesoporous structure, whereas the nitrogen adsorption measurements indicate the presence of excellent textural characteristics such as high surface area, large pore volume and uniform pore size distribution.