公开(公告)号：US11833491B2

公开(公告)日：2023-12-05

申请号：US17866889

申请日：2022-07-18

Applicant: Suzhou University of Science and Technology

Inventor： Chengbao Liu ,  Fei Tang ,  Tao Jin ,  Feng Chen ,  Junchao Qian ,  Zhigang Chen

IPC: B01J27/26 ,  B01J21/18 ,  B01J35/00 ,  B01J37/02 ,  B01J37/06 ,  B01J37/08 ,  C02F1/30 ,  C02F1/72 ,  C02F101/30

CPC classification number: B01J27/26 ,  B01J21/18 ,  B01J35/004 ,  B01J37/0203 ,  B01J37/0207 ,  B01J37/06 ,  B01J37/084 ,  C02F1/30 ,  C02F1/725 ,  C02F2101/308 ,  C02F2305/10

Abstract: The present disclosure provides a synthesis method of a g-C3N4/C composite material based on a hollyhock stalk, including the following steps: (1) pretreatment of hollyhock stalks; and (2) fabrication of the g-C3N4/C composite material. In this method, with the hollyhock stalk as a carbon skeleton, g-C3N4 is spread on a template surface to form a laminated layer, and a composite system with a special structure is constructed. Compared with pure phase g-C3N4, the composite material substantially increases specific surface area and has a clear interface; the carbon skeleton not only functions as a rigid support, but also increases the electron transfer efficiency of the composite material, thereby improving the separation efficiency of photogenerated carriers and the utilization rate of visible light. Raw materials used in the method are inexpensive and environmentally friendly, which can be used for industrial production and bulk production of eco-friendly materials for harnessing environmental organic pollutants.

公开(公告)号：US20230201811A1

公开(公告)日：2023-06-29

申请号：US17866889

申请日：2022-07-18

Applicant: Suzhou University of Science and Technology

Inventor： Chengbao Liu ,  Fei Tang ,  Tao Jin ,  Feng Chen ,  Junchao Qian ,  Zhigang Chen

IPC: B01J27/26 ,  B01J21/18 ,  B01J35/00 ,  B01J37/06 ,  B01J37/02 ,  B01J37/08

CPC classification number: B01J27/26 ,  B01J21/18 ,  B01J35/004 ,  B01J37/06 ,  B01J37/0203 ,  B01J37/0207 ,  B01J37/084 ,  C02F2305/10 ,  C02F2101/308

Abstract: The present disclosure provides a synthesis method of a g-C3N4/C composite material based on a hollyhock stalk, including the following steps: (1) pretreatment of hollyhock stalks; and (2) fabrication of the g-C3N4/C composite material. In this method, with the hollyhock stalk as a carbon skeleton, g-C3N4 is spread on a template surface to form a laminated layer, and a composite system with a special structure is constructed. Compared with pure phase g-C3N4, the composite material substantially increases specific surface area and has a clear interface; the carbon skeleton not only functions as a rigid support, but also increases the electron transfer efficiency of the composite material, thereby improving the separation efficiency of photogenerated carriers and the utilization rate of visible light. Raw materials used in the method are inexpensive and environmentally friendly, which can be used for industrial production and bulk production of eco-friendly materials for harnessing environmental organic pollutants.

公开(公告)号：US11351532B2

公开(公告)日：2022-06-07

申请号：US16610028

申请日：2018-07-30

Applicant: SUZHOU UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Zhigang Chen ,  Feng Chen ,  Junchao Qian ,  Chengbao Liu ,  Chencheng Wang

IPC: B01J37/02 ,  C25B11/049 ,  C25B1/55 ,  B01J6/00 ,  B01J21/18 ,  B01J27/051 ,  B01J35/00 ,  C01B3/04 ,  C25B1/04

Abstract: The present invention provides a preparation method of a photocatalytic composite material, and relates to the field of catalyst technologies. The preparation method provided in the present invention includes the following steps: (1) subjecting plant leaves to soaking pretreatment to obtain template biomass; (2) mixing a molybdenum source-sulfur source aqueous solution with the template biomass obtained in step (1) and conducting impregnation to obtain a composite material precursor; and (3) calcining the composite material precursor obtained in step (2) to obtain the photocatalytic composite material. The photocatalytic composite material in the present invention includes acicular molybdenum sulfide and biomass carbon, the acicular molybdenum sulfide is loaded to a surface of the flake carbon, the mass content of the biomass carbon is 70% to 90%, and the mass content of the molybdenum sulfide is 10% to 30%. Performance of photocatalytic hydrogen production of the photocatalytic composite material in the present invention is better than that of a pure molybdenum sulfide material and has excellent photocorrosion resistance, and hydrogen production efficiency is reduced by only approximately 10% after three cycles.