what could be the best way to characterize basalt fiber surface. I have coated Basalt fiber and from FTIR i did not get much information? Is there any other technique with more sensitivity for detection of surface functional groups?
What type of FTIR experiment are you using, reflection or transmission? Sometimes it is much better to use KBr pellet than trying to measure on diamond.
Michal Hegedus thanks for your suggestion. I already tried reflection and transmission mode but i am not getting reproducible data even for the same sample.
Agnieszka Suliga thanks. Actually the major content of basalt fiber is silica and my coating also contains Si, so my XPS data showed variable elemental composition.