I have the BET data of pristine biochar and Iron-functionalised biochar, in which the pore radius of iron-functionalised biochar comes greater. Simply if the iron nanoparticles fit into the pores of biochar the pore radius should decrease but it is not happening. I have read somewhere that it could be possible due to that because nanoparticles scratch the pore and thus increase the pore size of biochar.
Kindly suggest the correct reason with references.
Thanks in advance
Do you have evidence that the NPs are present inside the pores, and to which degree they are interacting with each other?
Not a expert on this, but my doubts are that you increased overall surface and the specific surface area too and your mathematics may be wrong. You cannot measure pore size (distribution) by BET, you only calculate it.
May be porosimetry gives a better picture.
Ayushi Mishra
Your table apparently gives the specific surface area. As the pore radius decreases, the specific surface area should increase, but it decreases. It can not be so.
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