While synthesizing hollow mesoporos silica nanoparticles, I do calcination to remove CTAB. The Silica powder turns into black, any idea why?

I follow the procedure mentioned here 10.1002/smll.201200962 At the end, I use muffle furnce at 550 C for 6 hours to remove CTAB. After calination, there was a significant difference in the...

17 October 2020 6,941 4 View