公开(公告)号：US20180085712A1

公开(公告)日：2018-03-29

申请号：US15540260

申请日：2016-01-25

Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jiansheng Li ,  Shunlong Pan ,  Xiaofeng Fang ,  Lianjun Wang ,  Xiuyun Sun ,  Jinyou Shen ,  Weiqing Han ,  Xiaodong Liu

IPC: B01D67/00 ,  B01D69/02 ,  B01D71/68 ,  C02F1/28 ,  C02F1/44

CPC classification number: B01D67/0023 ,  B01D61/02 ,  B01D61/14 ,  B01D67/0041 ,  B01D67/0088 ,  B01D69/02 ,  B01D69/147 ,  B01D69/148 ,  B01D71/68 ,  B01D2323/286 ,  B01D2325/12 ,  B01J20/26 ,  B01J20/28033 ,  B01J20/30 ,  C02F1/28 ,  C02F1/281 ,  C02F1/444 ,  C02F2305/08

Abstract: The present invention provides an ultrafiltration membrane comprising a sulfone polymer membrane matrix with pores and an organic polymer sealing layer, wherein the pores are filled with nanoadsorbents. The present invention further provides a method for preparing the ultrafiltration membrane, which includes the following steps: (1) synthesizing nanoadsorbents; (2) preparing the sulfone polymer membrane matrix by immersion-precipitation phase inversion; and (3) immobilizing nanoadsorbents in the pores of the sulfone polymer membrane matrix by reverse filling, then sealing the pores with organic polymers to form a multifunctional ultrafiltration membrane. In the present invention, colloidal gold, polyethylene glycol molecules and Pb(II) ions (and so forth) are utilized as models of viruses, macromolecular organic pollutants, and small molecular pollutants, respectively. It is shown that the multifunctional ultrafiltration membrane allows for removal of multiple pollutants from water and can simultaneously remove multiple pollutants under low pressure.

公开(公告)号：US10143972B2

公开(公告)日：2018-12-04

申请号：US15540260

申请日：2016-01-25

Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jiansheng Li ,  Shunlong Pan ,  Xiaofeng Fang ,  Lianjun Wang ,  Xiuyun Sun ,  Jinyou Shen ,  Weiqing Han ,  Xiaodong Liu

IPC: C02F1/28 ,  C02F1/44 ,  B01D61/02 ,  B01D61/14 ,  B01D67/00 ,  B01D69/02 ,  B01D69/14 ,  B01D71/68 ,  B01J20/26 ,  B01J20/28 ,  B01J20/30

Abstract: The present invention provides an ultrafiltration membrane comprising a sulfone polymer membrane matrix with pores and an organic polymer sealing layer, wherein the pores are filled with nanoadsorbents. The present invention further provides a method for preparing the ultrafiltration membrane, which includes the following steps: (1) synthesizing nanoadsorbents; (2) preparing the sulfone polymer membrane matrix by immersion-precipitation phase inversion; and (3) immobilizing nanoadsorbents in the pores of the sulfone polymer membrane matrix by reverse filling, then sealing the pores with organic polymers to form a multifunctional ultrafiltration membrane. In the present invention, colloidal gold, polyethylene glycol molecules and Pb(II) ions (and so forth) are utilized as models of viruses, macromolecular organic pollutants, and small molecular pollutants, respectively. It is shown that the multifunctional ultrafiltration membrane allows for removal of multiple pollutants from water and can simultaneously remove multiple pollutants under low pressure.

公开(公告)号：US12281405B2

公开(公告)日：2025-04-22

申请号：US17418144

申请日：2020-09-02

Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Weiqing Han ,  Ruiqian Liu ,  Siqi Liu ,  Kajia Wei ,  Wei Li ,  Lu Wang ,  Lianjun Wang ,  Xiaodong Liu ,  Jiansheng Li ,  Xiuyun Sun ,  Jinyou Shen

IPC: C25D9/04 ,  C02F1/461 ,  C25D5/56 ,  G01N27/30

Abstract: The present invention relates to the technical field of electrocatalytic electrode preparation, and discloses a lead dioxide-carbon nanotube adsorptive electrochemical submicroelectrode, a preparation method, and use thereof. The electrochemical submicroelectrode according to the present invention comprises multiple layers of orderly arranged spherical lead dioxide submicroholes communicating with each other, where the carbon nanotubes are partially or completely inserted (in the form of twigs) in the lead dioxide hole and in the wall of the hole. The combined effect of adsorption and catalysis inside the submicroreactor effectively solves the problems of low catalytic efficiency and diffusion control associated with the conventional flat lead dioxide electrode, thus greatly improving the electrochemical catalytic performance of the electrode.

公开(公告)号：US11787717B2

公开(公告)日：2023-10-17

申请号：US17057050

申请日：2020-02-24

Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Weiqing Han ,  Tao Cui ,  Kajia Wei ,  Wei Li ,  Lianjun Wang ,  Xiaodong Liu ,  Xiuyun Sun ,  Jiansheng Li ,  Jinyou Shen

IPC: C02F9/00 ,  C02F1/461 ,  C02F1/467 ,  C02F1/66 ,  C02F101/34 ,  C02F101/38

CPC classification number: C02F9/00 ,  C02F1/4672 ,  C02F1/46109 ,  C02F1/66 ,  C02F2001/46133 ,  C02F2001/46171 ,  C02F2101/34 ,  C02F2101/38 ,  C02F2201/4614 ,  C02F2301/046 ,  C02F2305/026

Abstract: The present invention discloses an electrocatalytic Fenton oxidation-electrochemical oxidation coupling process and apparatus for efficient treatment of chemical wastewater, and belongs to the field of sewage treatment. The process includes an electrocatalytic Fenton oxidation step, an electrochemical oxidation step, and a pH adjustment step. A spacing between a cathode and an anode in the electrocatalytic Fenton oxidation step is controlled, so that oxygen produced at the anode reacts at the cathode to produce H2O2. The treatment requirements can be met without external aeration or external addition of H2O2, and meanwhile, the efficiency of COD removal by electro-Fenton oxidation is effectively improved. Further, by connecting a pH adjusting tank with the electrocatalytic Fenton oxidation-electrochemical oxidation coupling apparatus in series, a coupling treatment process with near-zero production of iron sludge is realized.

公开(公告)号：US20220250042A1

公开(公告)日：2022-08-11

申请号：US17666628

申请日：2022-02-08

Applicant: Nanjing University of Science and Technology

Inventor： Kajia Wei ,  Weiqing Han ,  Lu Wang ,  Siqi Liu ,  Run Liu ,  Juncheng Dai

IPC: B01J23/755 ,  C02F1/72 ,  B01J21/04 ,  B01J23/14 ,  B01J21/06 ,  B01J35/02 ,  B01J35/00 ,  B01J35/10 ,  B01J37/06 ,  B01J37/34

Abstract: A base material includes a base layer. The base layer includes a structured surface. The base layer includes a transition metal and a transition metal oxide, and a sum of the transition metal and a transition metal oxide accounts for at least 90 wt. % of the base layer. The transition metal oxide is concentratedly distributed on the structured surface. The base material is flexible in at least one direction, and has a bending angle of not less than 90° when being bent.