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

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,...

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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.

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