Nanotube photocatalytic bactericide as well as preparation method and application thereof

A nanotube and photocatalytic technology, applied in the direction of catalyst activation/preparation, bactericide, chemical instrument and method, etc., can solve the problem of no nanotube photocatalytic bactericide

Inactive Publication Date: 2021-05-14
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since nanotubes can be used as metal conductors, it can be seen that nanotubes have a strong ability to transmit and transport highly active free radicals. However, there is currently no nanotube photocatalytic fungicide

Method used

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  • Nanotube photocatalytic bactericide as well as preparation method and application thereof
  • Nanotube photocatalytic bactericide as well as preparation method and application thereof
  • Nanotube photocatalytic bactericide as well as preparation method and application thereof

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Embodiment 1

[0071] The preparation method of the nanotube photocatalytic bactericide of the present embodiment comprises the following steps:

[0072] Step 1: Preparation with SnO 2 Porous alumina templates for nanotubes

[0073] Take a porous alumina template, the porous alumina template is a single pass, the pore diameter is 30nm, the pore spacing is 65nm, and the pore depth is 5μm±0.2μm. Soak in SnCl with a concentration of 0.02mol / mL at a temperature of 25°C 4 ·5H 2 O aqueous solution for 4h.

[0074] From the above SnCl 4 ·5H 2 The porous alumina template was taken out from the O aqueous solution, and after calcination at a high temperature of 550 ° C for 2 h, the SnO 2 Porous alumina templates for nanotubes.

[0075] The above with SnO 2 The porous alumina template of nanotubes was first washed with absolute ethanol for 3 times, and then washed with distilled water for 3 times, and dried at 60 °C for 6 h to obtain the dried SnO 2 Porous alumina templates for nanotubes.

[...

Embodiment 2

[0087] The preparation method of the nanotube photocatalytic bactericide of the present embodiment comprises the following steps:

[0088] Step 1: Preparation with SnO 2 Porous alumina templates for nanotubes

[0089] Take a porous alumina template, the porous alumina template is a single pass, the pore diameter is 30nm, the pore spacing is 65nm, and the pore depth is 5μm±0.2μm. Soak in SnCl with a concentration of 0.5mol / mL at a temperature of 25°C-30°C 4 ·5H 2 O aqueous solution for 4h.

[0090] From the above SnCl 4 ·5H 2 The porous alumina template was taken out from the O aqueous solution, and after calcination at a high temperature of 550 ° C for 2 h, the SnO 2 Porous alumina templates for nanotubes.

[0091] The above with SnO 2 The porous alumina template of the nanotubes was first washed with absolute ethanol for 4 times, then washed with distilled water for 3 times, and dried at 60°C for 6 hours to obtain the dried SnO 2 Porous alumina templates for nanotube...

Embodiment 3

[0100] The preparation method of the nanotube photocatalytic bactericide of the present embodiment comprises the following steps:

[0101] Step 1: Preparation with SnO 2 Porous alumina templates for nanotubes

[0102] Take a porous alumina template, the porous alumina template is a single pass, the pore diameter is 30nm, the pore spacing is 65nm, and the pore depth is 5μm±0.2μm. Soak in SnCl with a concentration of 0.1mol / mL at a temperature of 25°C-30°C 4 ·5H 2 O aqueous solution for 4h.

[0103] From the above SnCl 4 ·5H 2 The porous alumina template was taken out from the O aqueous solution, and after calcination at a high temperature of 550 ° C for 2 h, the SnO 2 Porous alumina templates for nanotubes.

[0104] The above with SnO 2 The porous alumina template of the nanotubes was first washed with absolute ethanol for 3 times, then washed with distilled water for 4 times, and dried at 60 °C for 6 h to obtain the dried SnO 2 Porous alumina templates for nanotubes. ...

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Abstract

The invention discloses a nanotube photocatalytic bactericide as well as a preparation method and application thereof, and belongs to the technical field of bactericides. The preparation method of the nanotube photocatalytic bactericide comprises the following steps: step 1, preparing a porous alumina template with SnO2 nanotubes; step 2, preparing a TiO2 and SnO2 composite nanotube; and step 3, preparing the Ag modified TiO2 and SnO2 compounded nanotube photocatalytic bactericide. The invention also discloses a nanotube photocatalytic bactericide and application thereof. The nanotube photocatalytic bactericide prepared by the invention has excellent photocatalytic activity and good antibacterial performance, can be used under visible light without being limited to the use condition of an ultraviolet light source, is an efficient visible light driven photocatalytic antibacterial agent, and has a wider application range.

Description

technical field [0001] The invention relates to a nanotube photocatalytic bactericide, its preparation method and application, and belongs to the field of bactericide technology. Background technique [0002] Various bacteria and viruses have been threatening human health all the time. With the advancement of science and technology, people's requirements for environmental sanitation have been further improved, and antibacterial materials are particularly important in life. In today's increasingly serious global environmental pollution, the use of photocatalytic technology to control environmental pollution has attracted widespread attention from all over the world. At present, different forms of WO 3 , SnO 2 , ZnO, SrTiO 3 , g-C 3 N 4 and TiO 2 Such semiconductor materials have been widely used in the photodegradation of environmental pollutants. Among them, TiO 2 As a classic photocatalyst, because of its non-toxic, odorless, non-irritating, good thermal stability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/66B01J37/03A01N59/16A01N59/00A01P1/00A01P3/00
CPCB01J23/66B01J35/004B01J37/031A01N59/16A01N59/00
Inventor 汪远昊刘光焰赵未刘济沧黄振涛
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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