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Bhuj, India

Krantiguru Shyamji Krishna Verma Kachchh University named after Shyamji Krishnavarma of Kachchh, Gujarat, India is a regional university that promotes higher education in regional and rural areas of the country. Wikipedia.

Dave P.N.,Krantiguru Shyamji Krishna Verma Kachchh University | Chopda L.V.,Government Engineering College
Journal of Nanotechnology | Year: 2014

In the 21st century water polluted by heavy metal is one of the environment problems. Various methods for removal of the heavy metal ions from the water have extensively been studied. Application of iron oxide nanaparticles based nanomaterials for removal of heavy metals is well-known adsorbents for remediation of water. Due to its important physiochemical property, inexpensive method and easy regeneration in the presence of external magnetic field make them more attractive toward water purification. Surface modification strategy of iron oxide nanoparticles is also used for the remediation of water increases the efficiency of iron oxide for the removal of the heavy metal ions from the aqueous system. © 2014 Pragnesh N. Dave and Lakhan V. Chopda. Source

Kharadi G.J.,Krantiguru Shyamji Krishna Verma Kachchh University
Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry | Year: 2012

The author aimed to determine the activation energy for the thermal decomposition on mixed ligand copper(II) complexes of the type [Cu(L n)(CQ)(H 2O) 2].xH 2O (where L 1 = 2-bromo-7-hydroxy-10,11-dihydroindeno[5,4-c]chromen-6(9H)-one, L 2 = 2-bromo-7-hydroxy-9,10,11,12-tetrahydro-6H-naphtho[2,1-c] chromen-6-one, L 3 = 5-bromo-14-hydroxy-7,8-dihydro-1H-phenanthro[2,1- c] chromen-1-one, and x = 4, 5, 3) were studied at room temperature. All the compounds have been characterized by elemental analysis, magnetic susceptibility, FT-IR, 1H-NMR, 13C-NMR, electronic spectra and FAB-mass spectrometry. Electronic spectra and magnetic susceptibility measurements indicate octahedral stereochemistry. TGA and DSC determined thermal stability, order of kinetics, heat capacity, and activation energy of thermal degradation for these complexes. Order of stability of complexes was found to be [Cu(L 1)(CQ)(H 2O) 2].4H 2O > [Cu(L 2)(CQ)(H 2O) 2].5H 2O > [Cu(L 3)(CQ)(H 2O) 2].3H 2O. The ligands, metal salts, complexes, control, and standard drug were tested for their in vitro antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, Serratia marcescens, and Bacillus substilis. The metal complexes exhibit good activity against bacterial strains compared with parental compounds and moderate compared with the standard drug (Clioquinol). Copyright © Taylor & Francis Group, LLC. Source

MacWan D.P.,Nirma University | Dave P.N.,Krantiguru Shyamji Krishna Verma Kachchh University | Chaturvedi S.,Krantiguru Shyamji Krishna Verma Kachchh University
Journal of Materials Science | Year: 2011

Nanomaterials, defined as particles ranging from 1 to 100 nm diameter, have become widely utilized because of their unique physicochemical properties. Among those nanoparticles, titanium dioxide (TiO 2) is frequently used in the production of paints, paper, plastics, welding rod-coating material, cosmetics, etc. TiO 2 is the most commonly used semiconductor photocatalyst. Among the different nanomaterials, it is the most studied. Activated by UV-A irradiation, its photocatalytic properties have been utilized in various applications. A wealth of information on TiO 2 photocatalytic in activation of bacteria has been acquired over the last 20 years. Hence, in this review article we have described synthesis methods mainly sol-gel type method like sol-gel method, ultrasonic-assisted sol-gel method, microemulsion method, colloidal synthesis, and also other method are discussed like solvo-thermal method, thermal plasma process, supersonically expanded plasma jet method, induction plasma torch, reactive plasma processing, plasma electrolytic oxidation, hydrolysis method, thermohydrolysis method, coprecipitation method, citrate-nitrate autocombustion method, etc. Also applications of TiO 2 like medical applications, environmental application, sensor application, photocatalytic applications, and also its health impact for long-term exposure are discussed. © 2011 Springer Science+Business Media, LLC. Source

Chaturvedi S.,Krantiguru Shyamji Krishna Verma Kachchh University | Dave P.N.,Krantiguru Shyamji Krishna Verma Kachchh University | Shah N.K.,Gujarat University
Journal of Saudi Chemical Society | Year: 2012

In the era of nanoscience where all the devices and technologies are going to smaller and smaller in size with improved properties; catalysis is an important field of application. In this review article we are trying to summarize data reported in literature for application of nano sized catalyst in our daily life which are useful for human beings. Improvement in catalytic properties due size of catalyst reduced to nano scale is discussed here. Introductive points regarding nanoscience; their functional approaches; current research are also here. Main applications of nanocatalysts in water purification; fuel cell; energy storage; in composite solid rocket propellants; bio diesel production; in medicine; in dye; application of carbon nano tubes and several other point of application are discussed here in detail. © 2011 King Saud University. Source

Chaturvedi S.,Krantiguru Shyamji Krishna Verma Kachchh University | Dave P.N.,Krantiguru Shyamji Krishna Verma Kachchh University
Desalination | Year: 2012

Universal access to safe drinking water is a challenge to the scientific community to which the responsibility is incumbent on developing appropriate technologies. Safe drinking water must be globally available to all communities worldwide. It can be roughly considered that water infrastructure is well developed in urban areas as opposed to rural areas where the infrastructure is either poorly developed or non-existent. Accordingly, the population to be urgently deserved with safe drinking water is the rural one. In this review we are trying to summarize all methods reported in the literature for the removal of iron from groundwater for water purification. © 2012 Elsevier B.V. Source

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