(1) Loading metallic particles or nano-particles, pickling, adding surfactant can modify internal structure and the number or type of the surface functional groups, and then improve the adsorption characteristics and the mechanical properties of the adsorbent (so-called surface modification). The anti-adsorption deterioration of the adsorbent after surface modification must be different from the original adsorbent. After the adsorption deterioration principle of these adsorbent is studied, the method to achieve the physical adsorbent with fine comprehensive properties can be found.