I have one question
why my tio2 turned to yellow after annealing process (2h, 600 C, 5 C/min)
the first one is before annealing and the second one after annealing
when I checked with ICP, TiO2 content is >96% by weight.
Can someone explain to me?
@kenneth - TQ for your thought. I also wonder why my TiO2 did not have photocatalytic property after i have done methylene Blue test.
kenneth: i am using Titanium oxysulfate (TiOSO4) as precursor by slow addition of Ammonium hydroxide until white precipitation (metatitanic acid). This is my XRD data. I wonder what other factors that influence tio2 to become photocatalyst active?
Kenneth: well crystallized but still no photocatalytic activity. I dried at 70 C for 12 hours before calcination process .. please do give a suggestion =)
Abdul Razak Mohamed Sikkander
Velammal Engineering College
Nanyang Technological University
University of the West of Scotland
Vishal Mohan Udmale
University of Mumbai
Yasir F Joya
Ghulam Ishaq Khan Institute of Engineering Sciences and Technology
Mohammed Ibrahim Abdalwadoud
King Fahd University of Petroleum and Minerals
Eskisehir Osmangazi University
Islamic Azad University, Chalous, Iran