公开(公告)号：US20230372910A1

公开(公告)日：2023-11-23

申请号：US18028229

申请日：2021-08-24

申请人： NANJING UNIVERSITY ,  NANJING UNIVERSITY & YANCHENG ACADEMY OF ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING ,  NANHUAN YANCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.

发明人： Jinnan WANG ,  Zhiqun XIE ,  Lifang CHEN ,  Jiali ZHOU ,  Zhiping LYU ,  Aimin LI

IPC分类号： B01J23/843 ,  B01J37/03 ,  B01J6/00 ,  B01J37/08 ,  B01J21/04 ,  C02F1/72

CPC分类号： B01J23/8437 ,  B01J37/031 ,  B01J6/001 ,  B01J37/08 ,  B01J21/04 ,  C02F1/722 ,  C02F2101/38

摘要： A Fenton-like catalyst material with an electron-poor Cu center and a preparation method and use thereof are provided. The preparation method includes: step 1: dissolving bismuth nitrate pentahydrate in a nitric acid solution and diluting a resulting solution with deionized water to obtain a solution A; step 2: adding citric acid to the solution A and adjusting a pH of a resulting solution with ammonia water to obtain a solution B; step 3: dissolving aluminium isopropoxide (AIP), copper chloride dihydrate, and glucose in the solution B to obtain a suspension C; step 4: stirring the suspension C at a high temperature to allow evaporation until a solid D is completely precipitated; and step 5: subjecting the solid D to calcination in a muffle furnace to obtain the Fenton-like catalyst material. Under neutral conditions, the catalyst material exhibits a prominent removal effect for various toxic organic pollutants, especially for phenolic pollutants.

公开(公告)号：US20230372918A1

公开(公告)日：2023-11-23

申请号：US18028243

申请日：2021-08-24

申请人： NANJING UNIVERSITY ,  NANHUAN YANCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. ,  NANJING UNIVERSITY & YANCHENG ACADEMY OF ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING

发明人： Jinnan WANG ,  Zhiang HOU ,  Weilin BIAN ,  Yi WANG ,  Jiangfeng CHU ,  Cong LIU

IPC分类号： B01J35/00 ,  B01J23/50 ,  B01J37/10 ,  C02F1/30

CPC分类号： B01J35/004 ,  B01J23/50 ,  B01J37/10 ,  C02F1/30 ,  C02F2101/163

摘要： A photocatalytic material for efficient photocatalytic removal of a high-concentration nitrate, and a preparation method and use thereof are disclosed. The preparation method includes the following steps: step 1: preparation of a citrate-stabilized silver nanoparticle; step 2: synthesis and functionalization modification of SiO2 step 3: preparation of Ag/SiO2; and step 4: preparation of an Ag/SiO2@cTiO2 core-shell structure. The photocatalytic material prepared by the present disclosure has high reduction catalytic activity and can quickly remove a high-concentration nitrate and achieve high nitrogen selectivity. In addition, due to protection of a titanium dioxide shell, the photocatalytic material has excellent stability and can remove a high-concentration nitrate in water when the nitrate coexists with a high-concentration chloride ion.