•Distinguishing gating and pore-opening actions of flexible adsorbents•Tuning energy barrier avoiding pore opening for molecular sieving•Molecular sieving CO2/N2 CO2/CH4•Role host-guest interaction at the moment Molecular sieving, relying on simple size exclusion mechanism, is ideal adsorptive separation. While guest diffusion are generally judged by pore/aperture molecule sizes, precise determ...

introduction: use of unbalanced chemical fertilizers especially p, having low absorption efficiency and low solubility compounds with soil components, has resulted in the production and use of bio-fertilizers (17, 23 and 29). bio-fertilizer is a preservative material consisting of one or several specific beneficial micro-organisms or their metabolic products used to supply plant nutrients and d...