公开(公告)号：US11565241B2

公开(公告)日：2023-01-31

申请号：US16322133

申请日：2016-09-12

Applicant: FUZHOU UNIVERSITY

Inventor： Yuying Zheng ,  Jian Chen

IPC: B01J23/24 ,  B01J23/34 ,  B01D46/02 ,  B01D53/86 ,  B01J20/26 ,  B01J20/28 ,  B01J20/32 ,  B01J35/00 ,  B01J35/06 ,  B01J37/02 ,  B01J37/06 ,  B01J37/34

Abstract: A method for in-situ generation of nanoflower-like manganese dioxide catalyst on filter material is provided. The method comprises: immersing a filter material in a solution containing sodium lauryl sulfate and nitric acid; first modifying the surface of the filter material by using the sodium lauryl sulfate so that a charge layer is wound around the surface of the filter material and tightly absorbs H+ in an acid solution; and then adding potassium permanganate as an oxidant to react with H30 on the surface of the filter material to generate nano flower-like manganese dioxide in situ on the surface of the filter material, so as to obtain a composite filter material having a denitration function.