公开(公告)号：US10730759B2

公开(公告)日：2020-08-04

申请号：US15993541

申请日：2018-05-30

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: C01G23/047 ,  C01G23/053 ,  B01J35/00 ,  B01J37/03 ,  B01J37/16 ,  C30B7/14 ,  B01J21/06 ,  C30B7/08 ,  B01J27/24 ,  C01G23/08 ,  C30B29/60 ,  C30B29/16 ,  B82Y20/00 ,  C02F1/30 ,  C02F101/30 ,  B82Y40/00

Abstract: A preparation method of inverse opal material for visible-light-driven photocatalytic degradation of organic pollutants includes 1) using titanium dioxide precursor as raw material, preparing nitrogen-doped titanium dioxide inverse opal by one-step process in the presence of nitrogen source, and 2) in the presence of reducing agent, using the nitrogen-doped titanium dioxide inverse opal, selenium precursor, and cadmium precursor as raw materials to prepare the cadmium selenide sensitized nitrogen-doped titanium dioxide inverse opal.

公开(公告)号：US12280362B2

公开(公告)日：2025-04-22

申请号：US17624111

申请日：2020-11-08

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: B01J23/06 ,  B01J23/18 ,  B01J27/06 ,  B01J35/00 ,  B01J35/23 ,  B01J35/39 ,  B01J37/03 ,  B01J37/04 ,  C02F1/32 ,  C02F1/72 ,  C02F101/34

Abstract: A bismuth iodide oxide/zinc oxide composite material, a preparation method therefor and an application thereof in piezoelectric photocatalytic removal of organic pollutants. The conductive substrate spin-coated with a zinc oxide seed solution is annealed and added to the precursor solution for reaction to obtain a zinc oxide nanorod array (ZnO NRs); the zinc oxide nanorod array is added into a bismuth iodide precursor solution for reaction to obtain the bismuth iodide oxide/zinc oxide composite material (BiOI/ZnO NAs). The composite material is put into an aqueous solution containing bisphenol A, adsorption is performed in the dark for half an hour, and then ultrasound and visible light are used together to remove organic pollutants in the water. After piezoelectric photocatalytic degradation of 90 minutes, bisphenol A in the aqueous solution is almost completely degraded.

公开(公告)号：US10118151B2

公开(公告)日：2018-11-06

申请号：US15643813

申请日：2017-07-07

Applicant: SOOCHOW UNIVERSITY

Inventor： Jun Jiang ,  Jianmei Lu ,  Najun Li ,  Dongyun Chen

IPC: C01B31/08 ,  B01J20/02 ,  B01J20/26 ,  B01J20/30 ,  B01J35/00 ,  C02F1/28 ,  C02F1/30 ,  C02F1/72 ,  C02F101/30

Abstract: The invention discloses a composite with an adsorption-visible light catalytic degradation synergistic effect and a preparation method and application thereof. The preparation method includes the specific steps that firstly, a bismuth oxyiodide/bismuth oxychloride composite nano-particle loaded activated carbon fiber composite ACF@BiOIxCl1-x is synthesized; then, the fiber surface is grafted with polyethyleneimine, and the end composite PEI-g-ACF@BiOIxCl1-x is obtained. The composite can rapidly adsorb pollutants in water, and meanwhile the pollutants are efficiently degraded with a photocatalyst loaded on the surface of the composite; besides, the purpose of recycling and reusing the photocatalyst is achieved, the comprehensive treatment capability of the composite is improved, the service life of the composite is prolonged, and the use cost is lowered.

公开(公告)号：US09758415B2

公开(公告)日：2017-09-12

申请号：US14025353

申请日：2013-09-12

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: C02F3/00 ,  C12N11/14 ,  C12N11/02 ,  C12N11/08 ,  C12N11/06 ,  C02F3/34 ,  C02F3/10 ,  C02F101/34 ,  C02F103/28 ,  C02F103/36 ,  C02F103/38

CPC classification number: C02F3/348 ,  C02F3/103 ,  C02F3/108 ,  C02F3/341 ,  C02F2101/345 ,  C02F2103/28 ,  C02F2103/365 ,  C02F2103/38 ,  C12N11/08 ,  Y02W10/15

Abstract: A method of preparing a microorganisms-immobilized felt-based resin includes the following steps: providing a mixture of an acrylate monomer, an initiator, a solvent, and water; adding a felt to the mixture; initiating a polymerization reaction of the mixture to form a felt-based resin; and immobilizing microorganisms on the felt-based resin to form the microorganisms-immobilized felt-based resin.

公开(公告)号：US12226759B2

公开(公告)日：2025-02-18

申请号：US17624186

申请日：2020-11-08

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: B01J31/00 ,  B01J31/02 ,  B01J35/39 ,  B01J37/08 ,  C02F1/30

Abstract: Melamine is calcined to obtain melem; melem, perylene tetracarboxylic dianhydride and a solvent are mixed to obtain a mixture, and the mixture is subjected to a solvothermal reaction in an inert atmosphere to obtain perylene imide; and the perylene imide is dispersed in an aqueous solution containing a bismuth source and a tungsten source, and is subjected to a hydrothermal reaction to obtain a perylene imide/bismuth tungstate composite photocatalytic material. By means of constructing an organic-inorganic composite photocatalytic material, the introduction of the organic photocatalytic material that responds to visible light may enable the composite material to have a wider spectral response range; and the introduction of an inorganic semiconductor catalyst enables the composite material to produce more oxidizing active free radicals, thereby enhancing the photocatalytic degradation performance of the composite material on organic pollutants. The constructed organic-inorganic composite photocatalytic material has an excellent catalytic performance.

公开(公告)号：US12157115B2

公开(公告)日：2024-12-03

申请号：US17623974

申请日：2020-10-09

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: B01J35/00 ,  B01J21/06 ,  B01J23/02 ,  B01J35/39 ,  B01J37/02 ,  B01J37/08 ,  C02F1/72 ,  C02F101/30

Abstract: Monodisperse polystyrene microspheres are self-assembled on a conductive surface of FTO glass by vertical deposition method to prepare three-dimensional ordered photonic crystal opal template; the three-dimensional ordered photonic crystal opal template is immersed in a solution containing rhodium source, titanium source and strontium source, and is then calcined to prepare a rhodium doped strontium titanate inverse opal material; and the rhodium doped strontium titanate inverse opal material is added to water containing pollutants, and is then subjected to illumination and/or ultrasonic treatment to complete the removal of the pollutants in the water. The three-dimensional ordered macroporous rhodium doped strontium titanate inverse opal material may be applied in the field of photocatalysis. Under the action of external force, a built-in electric field formed by the spontaneous polarization of the material may effectively separate the photo-induced carriers, which may thus enhance the photocatalytic performance and improve the photocatalytic efficiency.

公开(公告)号：US11345616B2

公开(公告)日：2022-05-31

申请号：US16870390

申请日：2020-05-08

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: C02F1/30 ,  B01J23/80 ,  B01J35/00 ,  B01J35/02 ,  B01J37/08 ,  B01J37/34 ,  C02F101/38

Abstract: A heterojunction composite material consisting of one-dimensional In2O3 hollow nanotube and two-dimensional ZnFe2O4 nanosheets and its application are disclosed. When using this material for catalytic reactions, the hollow cavity and two-dimensional nanosheets of hollow nanomaterials can not only reduce the migration distance to accelerate the electron-hole separation, but also provide a large surface area and rich active sites to promote pollution adsorption and surface catalysis. At the same time, multiple light scattering or reflection in the hollow cavity of the hollow nanomaterials can increase light absorption and utilization. In addition, the heterojunction photocatalyst constructed by growing two-dimensional semiconductor nanosheets on a tubular substrate can promote the effective separation of photogenerated electrons and photogenerated holes, thereby improving the catalytic efficiency. In terms of catalytic performance, In2O3 @ ZnFe2O4 shows effective degradation of tetracycline, and due to its ferromagnetism, it shows convenient and good separation effect and has good recycling performance.

公开(公告)号：US11439990B2

公开(公告)日：2022-09-13

申请号：US16882017

申请日：2020-05-22

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: B01J27/22 ,  B01J27/04 ,  B01J35/00 ,  B01J37/02 ,  C02F1/30 ,  C02F1/70 ,  C02F101/22

Abstract: The invention provides a titanium carbide nanosheet/layered indium sulfide heterojunction and an application of the same in degrading and removing water pollutants. A simple electrostatic self-assembly method is used to uniformly absorb indium ions on the surfaces of Ti3C2 nanosheets, which effectively inhibits the stacking of the nanosheets and is beneficial to the uniform growth of In2S3 nanosheets on the surfaces of the Ti3C2. The present invent overcomes two disadvantages of too fast photogenerated carrier recombination rate of In2S3 and easy agglomeration of nano-scale In2S3, and effectively improves the separation efficiency and photocatalytic activity of photogenerated electron-hole of In2S3.

公开(公告)号：US11207670B2

公开(公告)日：2021-12-28

申请号：US16395683

申请日：2019-04-26

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: B01J37/34 ,  B01J23/80 ,  B01J35/00 ,  B01J35/02 ,  B01J37/08 ,  C02F1/30 ,  C02F1/461 ,  B82Y40/00 ,  B01J27/051 ,  C02F1/46 ,  B82Y30/00 ,  C02F101/30

Abstract: The invention discloses a loaded multifunctional catalysis composite material, a preparation method thereof and an application of the composite material to catalytic removal of water pollutants. The preparation method includes the steps: preparing a zinc oxide nano-sheet loaded nickel foam (Ni@ZnO) composite material by an electro-deposition method; compounding molybdenum disulfide micro-nano particles on ZnO porous nano-sheets by an electro-deposition method to obtain Ni@ZnO/MoS2. The composite material Ni@ZnO/MoS2 combines the advantages of components such as nickel foam, the zinc oxide nano-sheets and molybdenum disulfide from the point of material performances, high catalytic degradation activity and recycled performances are achieved, photo-catalysis and electro-catalysis are combined from the point of material application, and the catalytic activity of the composite material is improved by the aid of synergistic effects of photo-catalysis and electro-catalysis.

公开(公告)号：US11192093B2

公开(公告)日：2021-12-07

申请号：US16659068

申请日：2019-10-21

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei Lu ,  Najun Li

IPC: B01J27/24 ,  B01J35/00 ,  B01J37/08 ,  C02F1/32 ,  C02F1/72 ,  C02F101/34

Abstract: A preparation method of a two-dimensional nitrogen-doped carbon-based titanium dioxide composite material includes: (1) etching Ti3AlC2 with LiF/HCl to prepare two-dimensional transition metal carbide nanosheet; (2) preparing a nanosheet aggregate by electrostatic self-assembly of a two-dimensional transition metal carbide nanosheet and a positively charged nitrogen-containing cationic compound; (3) calcining the nanosheet aggregates to prepare a two-dimensional nitrogen-doped carbon-based titanium dioxide composite material. A method for degrading and removing organic pollutants in water includes (1) etching Ti3AlC2 with LiF/HCl to prepare two-dimensional transition metal carbide nanosheet; (2) preparing a nanosheet aggregate by electrostatic self-assembly of a two-dimensional transition metal carbide nanosheet and a positively charged nitrogen-containing cationic compound; (3) calcining the nanosheet aggregates to prepare a two-dimensional nitrogen-doped carbon-based titanium dioxide composite material; (4) placing the two-dimensional nitrogen-doped carbon-based titanium dioxide composite material into water containing organic pollutants to degrade and remove organic pollutants in water.