Efficient quick release spray for formaldehyde in sheets

摘要: The invention discloses an efficient quick release spray for formaldehyde in sheets. is prepared by the following steps: preparing iron-containing gel: dissolving ferric citrate into deionized water, dropwise adding ethylenediamine and ammonium hydroxide, stirring, then standing ageing a baking oven to form wet gel subsequently drying xerogel; spray: putting tube furnace introducing pure oxygen heating roasting; hydrogen continuously cooling ammonia gas; after reaction ended, nitrogen until temperature reduced normal temperature; finally, directly obtained material mixed solution ofwater isopropanol; sufficiently mixing obtain spray. disclosed contains FexNy C4N4 can accelerate of so as improve purifying efficiency.