Preparation method of boric-acid functionalized porous adsorbent

The invention relates to a preparation method of a boric-acid functionalized porous adsorbent, and belongs to the technical field of preparation of medicinal materials. The preparation method includes preparing boric-acid functionalized nano particles BA-MSNs, taking glycidyl methacrylate as a monomer, taking divinyl benzene as a cross-linking agent, taking azodiisobutyronitrile as an initiator, adding a surfactant Hypermer 2296, stirring to form Pickering high-internal-phase emulsion, and performing thermal-initiation polymerization to obtain boric-acid functionalized porous resin; introducing a B-N coordination compound according to a post-modification method to prepare the boric-acid functionalized porous adsorbent, and applying the boric-acid functionalized porous adsorbent to adsorption separation of luteolin under a neutral condition. The prepared adsorbent has a communicated porous structure, high permeability, high adsorption capacity and high recycle rate, and is environment friendly; adsorption can