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Nickel-doped titanium oxygen cluster nano catalytic material as well as preparation method and application thereof

A nano-catalytic material, titanium oxide cluster technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the ecological pollution of tetracycline, poor light absorption efficiency, Low photocatalytic performance and other problems, to achieve the effect of low cost, low detection limit and high catalytic performance

Active Publication Date: 2020-06-12
河北地质大学
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For the defects and deficiencies in the prior art, the object of the present invention is to provide a nickel-doped titanium oxygen cluster nano-catalyst material, preparation method and application, to solve Ecological Pollution Problems of Tetracyclines
Single-component photocatalysts have disadvantages such as poor quantum efficiency, poor visible light absorption efficiency, and easy light-induced charge combination, resulting in low photocatalytic performance.

Method used

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  • Nickel-doped titanium oxygen cluster nano catalytic material as well as preparation method and application thereof
  • Nickel-doped titanium oxygen cluster nano catalytic material as well as preparation method and application thereof

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Embodiment 1

[0031] According to the above-mentioned technical scheme, this embodiment provides a nickel-doped titania cluster nano-catalyst material, a preparation method and its application. The monocarboxylic acid used in the present embodiment is pivalic acid (PA), and the metal salt is nickel salt, which specifically includes the following steps:

[0032] Step 1: Mix 10.5mmol PA with 5mmol Ti(OBu) 4 Mix, add 20ml of ethylene glycol and stir for 5min to obtain a mixed solution, transfer the mixed solution to a glass flask with a cover, heat at 98°C for 24h; then wash with anhydrous tetrahydrofuran three times, and centrifuge at 65°C Down drying to obtain powdery solid particles, that is, pure titanium oxide cluster nano-catalyst materials;

[0033] Step 2: Weigh 0.05g of titanium oxide cluster powder obtained in Step 1 and 0.002g of nickel chloride into 15ml of deionized water to dissolve completely, place the small beaker under a mercury lamp for 30min, and the solution turns slightl...

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Abstract

The invention discloses a nickel-doped titanium oxygen cluster nano catalytic material as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing titanium oxygen cluster powder by taking pivalic acid as a precursor; then adding titanium oxygen cluster powder and nickel chloride into water to be dissolved and irradiating with a mercury lamp, and reacting to obtain the nickel-doped titanium oxygen cluster nano catalytic material. The mass ratio of the titanium oxygen cluster powder to the nickel chloride is 20-30: 1. The prepared nickel-doped composite titanium oxygen cluster nano catalytic material has a series of outstanding advantages that the photocatalytic oxidation technology is low in cost, environmentally friendly, easy tooperate and high in degradation efficiency, and the variety of degraded tetracycline is large; the composite photocatalyst overcomes the defects of poor quantum efficiency, poorer visible light absorption efficiency, easiness in photo-induced charge combination and the like of a single-molecule photocatalyst; the titanium-oxygen cluster compound has a large specific surface area, is easy to forma vacuum position under an illumination condition, has more pores and has high catalytic performance.

Description

technical field [0001] The invention belongs to the field of environmental protection, and relates to a nickel-doped titanium oxide cluster nano-catalyst material, a preparation method and an application. Background technique [0002] Titanium oxide cage (or heterometallic titanium oxide cage, hereinafter collectively referred to as titanium oxide cage), also known as titanium oxide cluster, is a monodisperse nano-molecular system, and its basic skeleton is a cage constructed of multiple titanium atoms connected to each other through oxygen bridges. Molecular clusters with a diameter between 0.5 and 2.0 nm. Titanium oxide cages can be regarded as a type of nano-titanium oxide with smaller size and organic functional groups on the surface, because it can produce a large number of holes to load pollutant molecules, and play a role in efficiently separating tetracycline pollutants from water bodies. So far, the research on nanocluster catalytic materials is relatively lacking,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J35/10C02F1/30C02F101/38
CPCB01J23/755C02F1/30C02F2305/10C02F2101/38B01J35/61B01J35/39Y02W10/37
Inventor 周亚红魏爱华张海亮刘卓王瑞张海龙王馨怡董子涵蔡依彤高璐宁
Owner 河北地质大学
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