公开(公告)号：US20220355286A1

公开(公告)日：2022-11-10

申请号：US17624313

申请日：2020-12-31

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei LU ,  Najun LI

IPC: B01J35/00 ,  C02F1/72 ,  B01J23/745 ,  B01J23/75 ,  B01J23/755 ,  B01J37/02 ,  B01J37/04 ,  B01J37/10

Abstract: Disclosed are a P—N heterojunction composite material supported on the surface of nickel foam, a preparation method therefor and the application thereof. The composite material is a supported catalyst which can be used to remove pollutants in water by means of photoelectrocatalysis. The method comprises firstly modifying, by means of a hydrothermal method, a layered nickel-iron bimetallic hydroxide nanosheet on the surface of clean nickel foam, and then modifying cobalt oxide nanowires on the surface of the layered nickel-iron bimetallic hydroxide nanosheet by means of a mixed solvent-thermal method, so as to obtain a P—N heterojunction catalyst composite material supported on the surface of nickel foam (Ni foam@NiFe-LDH/Co3O4). The composite material has a good response to visible light, which can greatly enhance the absorption and utilization of light, and is further beneficial to enhance the performance of the catalyst.

公开(公告)号：US20220347660A1

公开(公告)日：2022-11-03

申请号：US17624111

申请日：2020-11-08

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei LU ,  Najun LI

IPC: B01J27/06 ,  B01J23/06 ,  B01J35/00 ,  B01J37/03 ,  B01J37/04 ,  C02F1/32 ,  C02F1/72

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：US20230249161A1

公开(公告)日：2023-08-10

申请号：US18011835

申请日：2021-06-17

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei LU ,  Najun LI

IPC: B01J27/22 ,  B01J23/30 ,  B01J27/04 ,  B01J35/00

CPC classification number: B01J27/22 ,  B01J23/30 ,  B01J27/04 ,  B01J35/004 ,  C02F2305/10 ,  C02F2101/345

Abstract: Disclosed are a Z-type heterojunction composite material of a tungsten oxide nanorod/a titanium carbide quantum dot/an indium sulfide nanosheet, a preparation method therefor and an application thereof. The method includes: preparing a titanium carbide quantum dot by using freeze-thaw and ultrasound methods for multiple times, and then placing a tungsten trioxide nanorod prepared by a hydrothermal method into a titanium carbide quantum dot aqueous solution, stirring same, and then standing same to obtain a tungsten oxide nanorod loading a quantum dot; stirring and uniformly mixing an indium compound and a sulfur compound in an ethylene glycol solvent, and then adding the tungsten oxide nanorod loading the quantum dot, and performing a reflux reaction at constant temperature to obtain the composite material. The titanium carbide quantum dot of the present invention can provide good electron transport channels at different semiconductor interfaces.

公开(公告)号：US20180346343A1

公开(公告)日：2018-12-06

申请号：US15993541

申请日：2018-05-30

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei LU ,  Najun LI

IPC: C01G23/047 ,  B01J35/00 ,  B01J37/03 ,  B01J37/16 ,  C30B7/14 ,  C30B7/08

CPC classification number: C01G23/047 ,  B01J21/063 ,  B01J27/24 ,  B01J35/004 ,  B01J37/035 ,  B01J37/16 ,  B82Y20/00 ,  B82Y40/00 ,  C01G23/053 ,  C01G23/08 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2004/03 ,  C02F1/30 ,  C02F2101/308 ,  C02F2305/10 ,  C30B7/08 ,  C30B7/14 ,  C30B29/16 ,  C30B29/60 ,  Y02W10/37

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：US20240343669A1

公开(公告)日：2024-10-17

申请号：US18294273

申请日：2022-08-22

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei LU ,  Najun LI

IPC: C07C51/353 ,  B01J27/04 ,  B01J27/051 ,  B01J35/33 ,  B01J37/04 ,  B01J37/06 ,  B01J37/20

CPC classification number: C07C51/353 ,  B01J27/04 ,  B01J27/051 ,  B01J35/33 ,  B01J37/04 ,  B01J37/06 ,  B01J37/20

Abstract: Disclosed in the present invention is an application of a metal sulfide piezoelectric material in piezoelectric catalytic reduction of CO2. The internal electric field generated by the piezoelectric material under external mechanical stimulation pushes electrons and holes to migrate in opposite directions, so that natural advantages are provided for separation and transmission of electron-hole pairs, but there is no report in the prior art that CO2 is reduced into C2+ products by means of piezoelectric catalysis. The present invention provides a metal sulfide piezoelectric nanomaterial and a preparation method therefor. The metal sulfide piezoelectric nanomaterial is used for piezoelectric catalytic reduction of CO2 for the first time, especially piezoelectric catalytic reduction of CO2 to obtain C2+ products so as to broaden the technical route of catalytic reduction of CO2.

公开(公告)号：US20220347666A1

公开(公告)日：2022-11-03

申请号：US17623974

申请日：2020-10-09

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei LU ,  Najun LI

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

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：US20190329236A1

公开(公告)日：2019-10-31

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 ,  C02F1/461 ,  C02F1/30 ,  B01J37/08

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：US20180008953A1

公开(公告)日：2018-01-11

申请号：US15643813

申请日：2017-07-07

Applicant: SOOCHOW UNIVERSITY

Inventor： Jun JIANG ,  Jianmei LU ,  Najun LI ,  Dongyun CHEN

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

CPC classification number: B01J20/0259 ,  B01J20/264 ,  B01J20/3085 ,  B01J35/004 ,  C02F1/288 ,  C02F1/30 ,  C02F1/725 ,  C02F2101/308 ,  C02F2305/10 ,  Y02W10/37

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：US20230132599A1

公开(公告)日：2023-05-04

申请号：US17912539

申请日：2021-12-17

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei LU ,  Najun LI

IPC: B01J31/16 ,  C02F1/30

Abstract: he invention discloses a porphyrin-based metal coordination conjugated polymer, a preparation method therefor, and an application thereof in photocatalytic degradation of organic pollutants. The catalyst of the present invention has an 18π-conjugated skeleton, a nearly planar macrocyclic molecule, a stable rigid structure and a very stable highly conjugated system, so that the catalyst has excellent photoelectric conversion efficiency, a wide range of absorption spectra, strong redox capacity, and good chemical and thermal stability. A metal coordinated porphyrin acts as active center, a large number of derivatives can be derived, and the method has emerged as a promising alternative for the photocatalytic degradation of environmental pollutants and the like.

公开(公告)号：US20220355284A1

公开(公告)日：2022-11-10

申请号：US17624186

申请日：2020-11-08

Applicant: SOOCHOW UNIVERSITY

Inventor： Jianmei LU ,  Najun LI

IPC: B01J31/02 ,  B01J35/00 ,  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.