Monolithic adsorbent shaping method and application

A granular adsorbent prepared by the steps of:

• adding a pyrrole monomer to an acidic solution, and adding an oxidant as an initiator to obtain a first reaction system and allow a polymerization reaction of the pyrrole monomer to produce polypyrrole (PPy), wherein
• the oxidant is a mixture of hydrogen peroxide and a ferric salt, the hydrogen peroxide and the ferric salt are added at an amount such that a molar ratio of the hydrogen peroxide to the pyrrole monomer is 4.6:1, and a molar ratio of iron ions in the ferric salt to the pyrrole monomer is 0.03:1;
• and wherein
• an adsorption material powder is added to the first reaction system before, during, or immediately after the polymerization reaction, and uniformly stirred to obtain a second reaction system;
• after the polymerization reaction is completed, filtering the second reaction system to obtain a filter cake, and molding the filter cake to obtain the granular adsorbent;
• or, subjecting the second reaction system to a centrifugal sedimentation and molding to obtain the monolithic adsorbent;
• and wherein
• the adsorption material powder is a metal-organic framework (MOF) powder, Zeolitic imidazolate framework (ZIF) powder, or zeolite molecular sieve (ZMS) powder, and
• a mass percentage of the PPy in the granular adsorbent is between 5% and 20%.