PREPARATION OF YEAST SOLUTION AND IRRADIATION SYSTEM 34. 4.6. COPOLYMER SYNTHESIS 35 4.7. COMPOSITE PREPARATION 36 4.8. CHARACTERISATION TECHNIQUES 37 4.8.1.Ultraviolet-visible Spectroscopy 38 4.8.2.X-Ray Diffraction Analysis 38 4.8.3.Scanning electron Microscopy 40 4.8.4.Attenuated total reflectance 41 4.8.5.X-Ray photoelectron spectroscopy 44 4.8.6.Nuclear Magnetic Resonance 47 4.8.7.Photocatalytic activity 49 CHAPTER 5: RESULTS AND DISCUSSION 51 5.1. CHEMICAL SYNTHESIS 51 5.2. BIOLOGICAL SYNTHESIS 65
