If you’ve ever used the BET (Brunauer–Emmett–Teller) theory to calculate surface area, you know it has limits. Chapter 2 of the book is a masterpiece on physisorption (physical adsorption via van der Waals forces) and chemisorption (chemical bonding).
Every time you purify water with a carbon filter, dry your hands under an air blade, or use a catalyst in your car, you are witnessing adsorption in action. Not absorption (where a fluid is taken up by a liquid or solid), but adsorption —the enrichment of molecules at the surface of a solid or liquid. Download Adsorption by Powders and Porous Solids
The authors stress a crucial warning: Ignore this, and your surface area calculation is meaningless. Not absorption (where a fluid is taken up
Buy the 2nd or 3rd edition (2013 or 2021). The updates on nanoporous materials and advanced modeling (DFT, GCMC simulations) are essential for modern research. The updates on nanoporous materials and advanced modeling