Photoluminescence and Structural Studies of Cu-Ti-Substituted M-Type Strontium Ferrite Nanoparticle by Sol-gel Method

Lee, Zhou Li (2018) Photoluminescence and Structural Studies of Cu-Ti-Substituted M-Type Strontium Ferrite Nanoparticle by Sol-gel Method. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

The first chapter is written about the definition of nanoscience, nanotechnology and nanoparticle. The history of nanotechnology from B.C. has gone through many significant changes and improvement until the 21st century. Sol-gel method is one of the bottom-up processes that I was used in the project. The object of study was to synthesise and to investigate the photoluminescence property of Cu-Ti-substituted strontium ferrite. Next chapter is about the structure of strontium ferrite and the effect of Cu(II) ions and Ti(IV) ions to the ferrite. The annealing temperature of 850 ℃ is found to provide smaller particle size. The applications of strontium ferrite are from motors, magnetic holder tools and generators. The third chapter is about the sol-gel method that used to synthesise a nanoparticle, using ethylene glycol as the gel precursor attempt Cu(II) and Ti(IV) to (M)SF on difference ratio at an annealing temperature of 850 ℃. The sample was investigated by SEM, EDS, TGA, PL and particle analyser. The particle size was fall on the ranging from 200 nm to 700 nm. All the ferrites were found to be negative results of photoluminescence properties. The TGA results indicated that 0.53 % of the oxygen vacancies. SEM and EDX results show that the Cu-Ti-substituted was successfully incorporated into (M)SF.