After the solvent-exchange process completed, the solvent is decantated and separated. The remaining solvent (entrapped inside the pore) is removed using different heating/vacuum cycles. In many cases the structures are activated under vacuum and at high temperatures to evaporate the solvent. While, in some situations, the samples are firstly evacuated at room temperature, then at high temperatures (purging) before conducting further adsorption experiments. It is important to remark that, the adjustment of the activation conditions (temperature and pressure) is dependent on the boiling point of the solvent, and also on the desorption characteristics of the MOF. Since, the desorption process depends on the interaction between the solvent and the solid framework, solvent-solvent interaction, and pores characteristics of the host framework.