I synthesised ZnO/AC then after which I doped it with gallic acid. I discovered that the surface area decrease after the reaction. What can cause the decrease in the surface area.
John Busayo Adeoye
Gallic acid molecules are coordinately bonded to the ZnO surface. The particle size increases and the specific area decreases.
Article Functionalized ZnO Nanoparticles with Gallic Acid for Antiox...
The decrease in surface area of ZnO/activated carbon after doping with gallic acid may result from coating ZnO particles, particle aggregation, chemical interactions altering morphology, and physical blockage of pores. These factors collectively reduce the accessible surface area for interactions and adsorption.
@ Yuri Mirgorod, thanks for the explanation
@ Abeelhak Maghchiche, thank you. Please, did you have any journals to support this?
Abdelhak Maghchiche
When particles aggregate, the aggregate area increases. The specific area cm2/g decreases.
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