A5046479988- Zeolite Catalysis and Synthesis
- Clay minerals and soil interactions
- Catalytic Processes in Materials Science
- Mesoporous Materials and Catalysis
- Coal and Its By-products
- Inorganic and Organometallic Chemistry
- Industrial Gas Emission Control
- Concrete and Cement Materials Research
- Chemical Synthesis and Reactions
- Electrochemical Analysis and Applications
- Multicomponent Synthesis of Heterocycles
- Recycling and utilization of industrial and municipal waste in materials production
- Soil and Unsaturated Flow
- Chemical Synthesis and Characterization
- Catalysis and Oxidation Reactions
- Water Quality Monitoring and Analysis
- Groundwater and Isotope Geochemistry
- Adsorption and biosorption for pollutant removal
- Thermal and Kinetic Analysis
- Radioactivity and Radon Measurements
- Extraction and Separation Processes
- Phosphorus and nutrient management
- Heavy metals in environment
- Fluoride Effects and Removal
- Climate change impacts on agriculture
University of Kota
2015-2024
Government of Haryana
2023
Government Medical College
2007-2008
University of Rajasthan
1991-2000
The directly compressible floating-bioadhesive tablets of tramadol were formulated using varying amounts Carbopol 971P (CP) and hydroxypropylmethyl cellulose (HPMC), along with other requisite excipients. In vitro drug release profile, floatational characteristics ex vivo bioadhesive strength texture analyzer determined, systematically optimized a 32 central composite design (CCD). studies indicated successful formulation gastroretentive compressed matrices excellent controlled release,...
The main aim of this research was to prepare nanoparticles nickel oxide through a new mixed reverse microemulsion route. Quaternary (water/surfactant/co surfactant/oil-phase) used synthesize nanoparticles. prepared by Tween-80, Aerosol-OT, n-Propanol, Cyclohexane, and Nickel Chloride. Previously were synthesized method but the novelty process lies in fact that conventionally either cationic or anionic non ionic surfactants are for synthesis nanoparticles.Whereas present developed novel...
This study investigates seasonal variation in concentration of some heavy metals suspended and respirable particulate matter (SPM RPM) collected from five different zones situated Kota city during both summer (March, April, May October) winter (January, February, November December) seasons 2011–2012. Mean concentrations anthropogenic origin (Pb, Zn, Cu Cd) were higher lower with their relative abundance order: Zn > Pb Cd while reverse trend was observed for crustal (Ca, Mg Fe) at all zones....
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface-catalyzed autoxidation of sulfur(IV) in aqueous silica and copper(II) oxide suspensionsDevarakonda S. N. Prasad, Ashu Rani, Krishna GuptaCite this: Environ. Sci. Technol. 1992, 26, 7, 1361–1368Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992https://pubs.acs.org/doi/10.1021/es00031a013https://doi.org/10.1021/es00031a013research-articleACS PublicationsRequest reuse...
Abstract Polyurethane composites synthesized by interaction of fly ash filler with polyether polyol, cross-linking agent, and curing agent in a certain ratio. The study’s findings show that the mechanical properties polyurethane composite are lowered hydroxyl moieties surface-functionalized chemically or physically linked. study also reveals prior subjecting samples ash–reinforced material for destructive analysis UTM evaluating properties. in-depth IR spectroscopy data is done focusing onto...
A novel fly ash supported solid base catalyst (MgO/fly ash) has been synthesized by using F-type and Mg(NO3)2 as precursor. The possessed stable Si-O-Mg phase with sufficient hydroxyl group to catalyze liquid phase, solvent free single step condensation of 4-methoxybenzaldehyde 2-hydroxyacetophenone giving higher conversion (86%) desired product (4-methoxy-2-hydroxychalcone) 93% yield. physico-chemical properties MgO/fly were evaluated N2 adsorptiondesorption, BET surface analysis, XRD,...
The kinetics of the uncatalyzed and silver(I) catalyzed oxidation lysine with cerium(IV) has been st udied in perchloric acid medium. reaction is second order, that first order respect to each reactant. mode electron transfer indicated through an adduct between Ag I via oxygen atom carboxyl group rather than amino group. Uncatalyzed simultaneously occurs siver(I) following rate law conforms all experimental data observed reaction, k = 1 [H + ]/k h +[H ] 2 [Ag ][H where, constant. A mechanism...