Preparation of Magnetic Mesoporous TiO Photocatalysts Using Ferrocene Surfactants

Abstract

The invention discloses a magnetic meso-porous titanium oxide photocatalysis material prepared by using a cyclopentadienyl iron surfactant. A preparation method of the magnetic meso-porous titanium oxide photocatalysis material comprises the following steps: 1, reacting N,N-dimethylaminomethylferrocene with bromohexadecane according to a molar ratio of 1:1; 2, re-crystallizing the above obtained reaction product with acetone, centrifuging obtained crystals, and carrying out room temperature vacuum drying to obtain pale yellow crystals defined as a ferrocene surfactant I with a hydrophilic end positioned in the center of a molecular chain and lipophilic ends positioned in two ends of the molecular chain; 3, carrying out a multi-step reaction on bromoundecanoic acid, and separating and purifying to prepare a ferrocene surfactant II with hydrophilic and lipophilic ends positioned in two ends of the molecular chain; 4, dissolving the above ferrocene surfactants in an ethanol solution; 5, adding a KCl solution; 6, adding organic titanium; 7, carrying out room temperature stirring, and carrying out a hydrothermal reaction; 8, filtering a reaction product obtained in step 7, washing the filtered product, drying the washed product at room temperature, and calcining the dried product; and 9, obtaining a powdery sample which is the magnetic meso-porous titanium oxide photocatalysis material. The magnetic meso-porous titanium oxide photocatalysis material prepared in the invention has a high catalysis performance, and the method is simple.

Description

technical field [0001] The invention relates to a catalytic material, in particular to a magnetic mesoporous titanium oxide photocatalytic material prepared with a ferrocene surfactant. Background technique [0002] There are two main methods for the preparation of magnetic mesoporous titanium oxide photocatalytic materials: first, surface loading, and second, threshold-limited growth. Surface loading is the most traditional method for preparing mesoporous titanium oxide photocatalytic materials; among them, the preparation of titanium oxide-containing mesoporous photocatalytic materials by inorganic salt loading has been studied comprehensively, and these preparation methods make the active sites dispersed unevenly, resulting in its The catalytic activity is limited to some extent. Organic iron was used as a surfactant in the threshold-limited growth, and Tao Shengyang of Dalian University of Technology used pyridine-containing ferrocene lipids to prepare uniformly dispers...

AI Technical Summary

Problems solved by technology

Surface loading is the most traditional method for preparing mesoporous titanium oxide photocatalytic materials; among them, the preparation of titanium oxide-containing mesoporous photocatalytic materials by inorganic salt loading has been studied comprehensively, and these preparation methods make the active sites dispersed unevenly, resulting in its Catalytic activity is limited

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