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thesis updateTRANSCRIPT
SYNTHESIS AND PHOTOCATALYTIC ACTIVITY OF CUO/ZNO NANOPARTICLES VIA MODIFIED CHEMICAL PRECIPITATION METHOD
Alloyssius E.G. Gorospe
Progress Report
October 15, 2015
Preparation of ZnO nanostructures Preparation of CuO nanostructures Preparation of CuO/ZnO nanostructures
PREPARATION OF ZNO NANOSTRUCTURES
ZnSO4 solution: transparent
After dropwise addition to 0.2M NaOH solution: white colloidal suspension
After stirring for 1h: white precipitate formation
PREPARATION OF CUO NANOSTRUCTURES
PREPARATION OF CUO NANOSTRUSTURES
CuSO4 Solution: Light blueAfter addition to 0.2M NaOH: Light blue colloidal suspensionWhile stirring: dark blue precipitateAfter 1h stirring: Black precipitate
PREPARATION OF CUO/ZNO NANOSTRUCTURES
Combination of ZnSO4 and CuSO4 solution: light blue color
Addition to NaOH solution: light blue colloidal suspension
After 1h stirring: light blue precipitate
PREPARATION OF CUO/ZNO NANOSTRUCTURES
Right after stirring After 27 hours
WASHING AND DRYING OF CUO SAMPLE