Application of titanium silicon spent catalyst and titanium silicon adsorbent

The invention discloses an application of a titanium silicon spent catalyst, and the titanium silicon spent catalyst is used for preparing a titanium silicon adsorbent for adsorbing VOCs. A preparation method of the titanium silicon adsorbent comprises the following steps: (1) mixing the titanium silicon spent catalyst, a binding agent, a pore forming agent and an appropriate amount of water to obtain a mixed material; (2) performing extrusion moulding on the mixed material obtained in the step (1) to obtain an intermediate product; and (3) drying the intermediate product obtained in the step(2), and performing calcination to obtain the titanium silicon adsorbent. The invention also discloses the titanium silicon adsorbent. According to the invention, the titanium silicon spent catalyst is used to prepare the titanium silicon adsorbent for adsorbing the VOCs, the titanium silicon adsorbent has adsorption performance on the VOCs similar to that of a pure-silicon ZSM-5 molecular sieve and is an effective adsorb