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Keyword: UV-VIS

Original Article
A cost effective and sensitive method for the determination of ammonia concentration in nanocrystal mordenite

The reduction capacity of ammonia while present even at ppm level can be demonstrated by the increased encounter probability between ammonia and methylene blue dye (MB+) incorporated in nanomordenite and Na-MOR zeolites. The rate of reduction methylene blue dye by ammonia on the surface nanomordenite zeolite is faster than Na-mordenite (Na-MOR) zeolite.Because nanomordenite zeolite with […]

Original Article
Effect of annealing and UV illumination on properties of nanocrystalline ZnO thin films

ZnO thin films with preferred orientation along the (002) plane were prepared onto the glass substrates by the sol-gel spin coating method for different post- annealing temperatures. The XRD study confirms that the thin films grown by this method have good crystalline hexagonal wurtzite structure. The optical band gap of the samples was determined from […]

Original Article
Plant-mediated synthesis of Silver nanoparticles by two species of Cynanchum L. (Apocynaceae): A comparative approach on its physical characteristics

The present study evaluates the biosynthesis of silver nanoparticles (SNPs) mediated by xerophytic plants, Cynanchum viminale and Cynanchum sarcomedium. The reaction between plant extracts and silver nitrate solution resulted in a yellowish brown/dark brown colored solution which suggests the formation of SNPs. Physical characteristics of synthesized SNPs were determined using UV-Vis spectral, Scanning electron microscopy […]