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Preparation method of 2D/1D heterojunction photocatalyst and application of 2D/1D heterojunction photocatalyst in antibiosis

A photocatalyst and heterojunction technology, applied in the field of photocatalytic materials, to achieve the effects of improved antibacterial performance, low cost, and strong visible light absorption

Pending Publication Date: 2021-11-02
SHANGHAI PUTUO DISTRICT PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no report about the preparation method of a 2D / 1D heterojunction photocatalyst of the present invention and its application in antibacterial

Method used

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  • Preparation method of 2D/1D heterojunction photocatalyst and application of 2D/1D heterojunction photocatalyst in antibiosis
  • Preparation method of 2D/1D heterojunction photocatalyst and application of 2D/1D heterojunction photocatalyst in antibiosis
  • Preparation method of 2D/1D heterojunction photocatalyst and application of 2D/1D heterojunction photocatalyst in antibiosis

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Embodiment 1

[0036] Dissolve 180 mg of indium nitrate and 150 mg of terephthalic acid in 150 ml of N,N-dimethylformamide, transfer to an oil bath at 110°C for 50 minutes, heat and stir for 50 minutes, wash with centrifuge and dry before transferring Heating in a low-temperature muffle furnace at 150°C for 1.5 hours with a heating rate of 4°C / min, and then transferred to a high-temperature muffle furnace at 450°C for 3 hours at the same heating rate to obtain porous In 2 o 3 nanotube. Take 30 mg of the above Porous Ind 2 o 3 The nanotubes were dispersed in 50 ml of deionized water, and the ZnIn 2 S 4 The precursors (108.9 mg of zinc chloride, 176.9 mg of indium chloride and 240.4 mg of thioacetamide) were sequentially added to the above dispersion, mixed evenly, heated and stirred in an oil bath at 70°C for 3 hours, and then washed by centrifugation , you can get 2D ultra-thin ZnIn 2 S 4 Nanosheet / 1D Porous In 2 o 3 Nanotube heterojunction.

Embodiment 2

[0038] Dissolve 180 mg of indium nitrate and 150 mg of terephthalic acid in 150 ml of N,N-dimethylformamide, transfer to a 100°C oil bath, heat and stir for 60 minutes, centrifuge, wash and dry, then transfer Heating in a low-temperature muffle furnace at 130°C for 2.5 hours with a heating rate of 5°C / min, and then transferred to a high-temperature muffle furnace at 550°C for 2 hours at the same heating rate to obtain porous In 2 o 3 nanotube. Take 30 mg of the above Porous Ind 2 o 3 The nanotubes were dispersed in 50 ml of deionized water, and the ZnIn 2 S 4 The precursors (81.6 mg of zinc chloride, 176.9 mg of indium chloride and 180.3 mg of thioacetamide) were sequentially added to the above dispersion, mixed evenly, heated and stirred in an oil bath at 90°C for 1.5 hours, and then washed by centrifugation , you can get 2D ultra-thin ZnIn 2 S 4 Nanosheet / 1D Porous In 2 o 3 Nanotube heterojunction.

Embodiment 3

[0040] Dissolve 180 mg of indium nitrate and 150 mg of terephthalic acid in 150 ml of N,N-dimethylformamide, transfer to a 140°C oil bath, heat and stir for 30 minutes, centrifuge, wash and dry, then transfer Heating in a low-temperature muffle furnace at 100°C for 3 hours with a heating rate of 6°C / min, and then transferred to a high-temperature muffle furnace at 500°C for 2.5 hours at the same heating rate to obtain porous In 2 o 3 nanotube. Take 30 mg of the above Porous Ind 2 o 3 The nanotubes were dispersed in 50 ml of deionized water, and the ZnIn 2 S 4 Precursors (146.7 mg of zinc acetate, 176.9 mg of indium chloride and 150.2 mg of thioacetamide) were sequentially added to the above dispersion, mixed evenly, heated and stirred in an oil bath at 80°C for 2.5 hours, and then washed by centrifugation and water. You can get 2D ultra-thin ZnIn 2 S 4 Nanosheet / 1D Porous In 2 o 3 Nanotube heterojunction.

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Abstract

The invention relates to the technical field of photocatalytic materials, in particular to a preparation method of a 2D / 1D heterojunction photocatalyst and an application of the 2D / 1D heterojunction photocatalyst in antibiosis, and the preparation method of the 2D / 1D heterojunction photocatalyst comprises the following steps: synthesizing a 1D porous In2O3 nanotube as a support semiconductor by a simple calcination method; and performing in-situ growth of a 2D ultrathin ZnIn2S4 nanosheet on the surface of the 1D porous In2O3 nanotube through a low-temperature oil bath process so as to construct the efficient visible light driven 2D ZnIn2S4 / 1D In2O3 heterojunction photocatalyst which is used for inactivating pathogenic microorganisms. The method has the advantages that the method is simple and convenient, the cost is low, and the material prepared by the method has the advantages of accelerating the separation and migration rate of photon-generated carriers and the generation of active species such as superoxide radicals, and has excellent photocatalytic antibacterial activity.

Description

technical field [0001] The invention relates to the technical field of photocatalytic materials, in particular to a preparation method of a 2D / 1D heterojunction photocatalyst and its application in antibacterial. Background technique [0002] In the past few decades, biological hazards caused by pathogenic microorganisms such as bacteria, viruses, and fungi have always been a global health problem faced by human beings. various diseases (such as fever, diarrhea, paralysis, etc.) and even death. Conventional disinfection methods (such as ultraviolet radiation, chlorination, high-temperature sterilization, ozonation, filtration technology, etc.) are usually accompanied by disadvantages such as high operating costs, many disinfection by-products, and secondary pollution, which seriously hinder their industrial-scale utilization. Against this background, there is an urgent need to explore a cost-effective, clean, sustainable, and reliable aqueous microbial purification technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04B01J23/08B01J35/00A01N59/16A01P1/00
CPCB01J27/04B01J23/08A01N59/16B01J35/39
Inventor 徐晓翔喻金星金姝闫佩毅
Owner SHANGHAI PUTUO DISTRICT PEOPLES HOSPITAL
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