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Nano titanium dioxide-zinc oxide hybrid material and synthesis method thereof

A nano-titanium dioxide and hybrid material technology, applied in the field of daily chemical materials, can solve the problems of troublesome operation, long mixing process, unable to reflect the hybrid structure, etc., to achieve performance, avoid performance unevenness, and enhance UV shielding performance. Effect

Active Publication Date: 2022-06-07
GUANGZHOU TINCI MATERIALS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems in this method of adding separately include: (1) It is necessary to separately prepare nano-titanium dioxide and zinc oxide and perform surface treatment, which leads to complicated process; (2) The mixing process is long and troublesome to operate
The zinc oxide obtained by this method will be physically deposited and wrapped on the surface of titanium dioxide, the product is not uniform and the cost of supercritical reaction is relatively high
In addition, the above-mentioned reaction also has another common defect: most of the synthesized zinc-titanium mixtures are composites, and the ultraviolet absorption properties of titanium dioxide and zinc oxide can not be reflected alone, and the advantages of the hybrid structure cannot be reflected.

Method used

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  • Nano titanium dioxide-zinc oxide hybrid material and synthesis method thereof
  • Nano titanium dioxide-zinc oxide hybrid material and synthesis method thereof
  • Nano titanium dioxide-zinc oxide hybrid material and synthesis method thereof

Examples

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Effect test

Embodiment 1

[0034] A method for synthesizing a nano-titanium dioxide-zinc oxide hybrid material of the present embodiment includes the following synthesizing steps:

[0035](1) slowly drip 5mL titanium tetrachloride into 100mL deionized water while stirring, control temperature to be 30 ℃, transfer the titanium tetrachloride aqueous solution to the hydrothermal reactor after the dripping, and stir the reaction at 180 ℃ After 2 hours, the obtained solution was filtered and washed, the wet filter cake was redispersed in 100 mL of deionized water, and the pH of the solution was adjusted to 5 with dilute hydrochloric acid to obtain hydroxyl-rich nano-TiO 2 Aqueous dispersion.

[0036] (2) The hydroxyl-rich nano-TiO obtained in step (1) 2 The aqueous dispersion was transferred to a 250 mL four-neck flask equipped with a stirring paddle and a thermometer, then 0.1 g of sodium polyacrylate as a complexing agent was added, heated to 60° C. and stirred for 30 min, and then 10.0 g of zinc acetate ...

Embodiment 2

[0041] A method for synthesizing a nano-titanium dioxide-zinc oxide hybrid material of the present embodiment selects linear polyacrylic acid as the coordinating agent, and includes the following synthesis steps:

[0042] (1) slowly drip 5mL titanium tetrachloride into 100mL deionized water while stirring, control temperature to be 30 ℃, transfer the titanium tetrachloride aqueous solution to the hydrothermal reactor after the dripping, and stir the reaction at 180 ℃ After 2 hours, the obtained solution was filtered and washed, the wet filter cake was redispersed in 100 mL of deionized water, and the pH of the solution was adjusted to 5 with dilute hydrochloric acid to obtain hydroxyl-rich nano-TiO 2 Aqueous dispersion.

[0043] (2) The hydroxyl-rich nano-TiO obtained in step (1) 2 The aqueous dispersion was transferred to a 250 mL four-necked flask equipped with a stirring paddle and a thermometer, then 0.1 g of polyacrylic acid as a coordinating agent was added, heated to 6...

Embodiment 3

[0048] A method for synthesizing a nano-titanium dioxide-zinc oxide hybrid material of the present embodiment selects linear polyvinylpyrrolidone as the coordinating agent, and includes the following synthesis steps:

[0049] (1) slowly drip 5mL titanium tetrachloride into 100mL deionized water while stirring, control temperature to be 30 ℃, transfer the titanium tetrachloride aqueous solution to the hydrothermal reactor after the dripping, and stir the reaction at 180 ℃ After 2 hours, the obtained solution was filtered and washed, the wet filter cake was redispersed in 100 mL of deionized water, and the pH of the solution was adjusted to 5 with dilute hydrochloric acid to obtain hydroxyl-rich nano-TiO 2 Aqueous dispersion.

[0050] (2) The hydroxyl-rich nano-TiO obtained in step (1) 2 The aqueous dispersion was transferred to a 250mL four-necked flask equipped with a stirring paddle and a thermometer, then 0.1g of the coordinating agent polyvinylpyrrolidone was added, heated...

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Abstract

The invention belongs to the technical field of daily chemical materials, and discloses a nano titanium dioxide-zinc oxide hybrid material and a synthesis method thereof. The synthesis method comprises the following steps: carrying out a hydrothermal reaction on titanium salt at 180-220 DEG C to obtain a hydroxyl-rich nano TiO2 aqueous dispersion, then adding a coordination agent and zinc salt, and uniformly stirring and dissolving to obtain a mixed solution; dissolving alkali and a dispersing agent in water to obtain an alkali solution containing the dispersing agent; dropwise adding an alkali solution containing a dispersing agent into the mixed solution, adjusting the pH value to 9-12, maintaining the temperature of 60-90 DEG C, carrying out heat preservation reaction for 2-6 hours, and filtering, separating, washing and drying the product to obtain the product. According to the method disclosed by the invention, the uniformly dispersed high-performance nano titanium dioxide-zinc oxide hybrid structure can be prepared without separation, high-temperature calcination and grinding. Compared with a nano titanium dioxide-zinc oxide compound, the hybrid structure shows enhanced ultraviolet shielding performance and more convenient usability, and has important significance for preparing a safe sun-screening agent.

Description

technical field [0001] The invention belongs to the technical field of daily chemical materials, and in particular relates to a nanometer titanium dioxide-zinc oxide hybrid material and a synthesis method thereof. Background technique [0002] Sunlight is one of the most important external environmental factors for all living things to survive. Due to the high energy of ultraviolet rays in sunlight, it may cause damage to human skin, such as inducing the formation of reactive oxygen species, DNA mutation, and eventually causing erythema, pigmentation, and even is skin cancer. After people are aware of the harm of ultraviolet rays to the human body, they begin to take conscious measures to reduce the damage to the skin, such as applying sunscreen products containing sunscreens on the exposed areas of the skin. According to the difference in composition and mechanism of action of sunscreens, sunscreens can be divided into two categories: chemical sunscreens and physical sunsc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053C01G9/02B82Y30/00B82Y40/00
CPCC01G23/053C01G23/0536C01G9/02B82Y30/00B82Y40/00C01P2004/84C01P2002/72C01P2002/84Y02W10/37
Inventor 周东李泽勇
Owner GUANGZHOU TINCI MATERIALS TECH
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