Improvement in Photocatalytic Properties of Synthesized Nano-structured ZnO in Magnetic Water and in Presence of Static Magnetic Field

摘要： This article presents the effects of magnetic water (MW), and static magnetic field (SMF) compared to non-magnetic water (NMW) on the synthesis and photocatalytic efficiency of ZnO nano-structures. ZnO nano-structures are synthesized in the three methods; in the MW (110 mT), in the presence of a SMF (75 mT) and NMW. The Different analysis is performed on the synthesized materials utilizing UV-visible spectrometer, XRD and FESEM. Then, the photocatalytic activities of the ZnO samples are comparatively studied. The results of the XRD analysis show that all the three nano-structures of ZnO are in hexagonal phase. The average size of the synthesized nano-structure ZnO crystals in the presence of SMF and MW are 10% and 19% bigger than the synthesized sample in the NMW. The FESEM images show the synthesized ZnO samples in the NMW, and the MW has a rod-like structure, but in the presence of SMF looks to be agglomerated. Photocatalytic activity of synthesized ZnO in the presence of the SMF and the MW are respectively 26% and 24% higher than the synthesized ZnO in NMW. Also, on comparing the performance of these ZnO nano-structures with the micron-sized sample, around 58% improvement in photocatalytic activity is observed.