Abstract
The objective of the present work is to develop a procedure for obtaining ZnO nanoparticle via complex formation with plant extracts. Mimosa pudica leaves and coffee powder were utilized as template for synthesis of ZnO nanoparticle.. After the complex formation, calcination of the complexes at the temperature related to thermal transformation was conducted. DTA-TGA, XRD and DRUV-Vis spectrophotometric analysis were utilized to study the effect of synthesis route to the physicochemical character and methylene blue photooxidation was chosen as reaction model to evaluate the photoactivity. The results show that the materials have crystallite size of around 27. 14 Å and 46.94 Å from the utilization of Mimosa pudica and coffee powder extracts respectively. Photocatalytic activity is related to the crystallite size as well as band gap energy values.
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