AbstractZinc oxide nano falcates of sickle shape have been synthesized from Prunus cerasifera pomological extract as a reducing cum stabilizing agent via novel, biomimetic and non-toxic route. Zinc oxide nano falcates were analyzed via ultraviolet spectroscopy, Fourier transform infrared analysis, X-ray powder diffraction, scanning electron microscopy and atomic force microscopy. Highly stable zinc oxide nano falcates synthesized at 200°C and 400°C calcination temperatures expressed intense UV-vis peak at 398 nm. Phenolic and amino groups were revealed by FTIR in pomological extract. Wurtzite crystalline structure of zinc oxide nano falcates was confirmed by XRD with average crystal size of 4.93 nm. SEM sizes ranged between 72.11-120 nm and 56.57-107.70 nm, respectively and shown higher polydispersity levels for two calcination temperatures. Augmented photocatalytic degradation of methyl red and bromophenol blue under direct solar irradiance shown pseudo first order kinetics (R2= 0.99 and 0.96). Furthermore, biomedical and agriculturally important pathogenic strains i.e., Xanthomanas axonopodis pv. citri and Pseudomonas syringae, Aspergillus niger, Aspergillus flavus, Aspergillus fumigatus, Aspergillus terreus, Penicillium chrysogenum, Fusarium solani and Lasiodiplodia theobromae were remarkably inhibited. Enhanced photocatalytic and antimicrobial activity reveals zinc oxide nano falcates promising prospects in nano bioremediation of polluted water and conversion into green nano pesticides.
Open Chemistry – de Gruyter
Published: Mar 7, 2018
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