Production method of photocatalytic composite microspheres

A technology of composite microspheres and production methods, which is applied in the field of photocatalytic composite microspheres, can solve the problems of non-recyclable, non-reusable, and low activity, and achieve the goal of improving dispersion, enhancing quantization effect, and improving catalytic activity. Effect

Inactive Publication Date: 2017-01-11
尤子满
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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for making photocatalytic composite microspheres, which solves the limitation that the existing commercial photocatalytic materials have low activity, cannot be recycled, cannot be reused, and can only be applied to ultraviolet photocatalysis

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  • Production method of photocatalytic composite microspheres
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  • Production method of photocatalytic composite microspheres

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] see Figure 1-8 , in the embodiment of the present invention, the material of the photocatalytic composite microsphere is mainly composed of three parts, the first part is the nanoscale titanium dioxide photocatalytic material, the second part is the nanoscale photosensitizing material, and the third part is the polymer precursor; The size of photocatalytic microspheres is: 2-8μm, the density is 1.8-2.5g / cm 3 .

[0039] The photocatalytic material is ...

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PUM

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Abstract

The invention discloses a production method of photocatalytic composite microspheres, comprising the steps of (1) preparing a polymer precursor; (2) producing sol from a photocatalyst and doping photosensitive materials; (3) mixing protecting glue and suitable water to produce a copolymerization continuous phase, and adding the polymer precursor of step (1) and the sol of step (2), and mixing well; (4) adjusting system acid-base environment, controlling polymerizing speed of the polymer precursor, and polymerizing the polymer precursor to obtain polymer microspheres, doping photocatalytic material and photosensitive material at a certain speed, and loading to the polymer microspheres to obtain photocatalytic microspheres, with the photocatalytic microspheres controlled in the range of 1-5 Mum; (5) adjusting acid-base environment, ending the reaction, filtering a suspension to obtain filter cakes, and washing the filter cakes three times with hot purified water at 80 DEG C; (6) drying the filter cakes at 100 DEG C, grinding into powder with a mortar, thermally treating in an oven at 130 DEG C for 3 h, removing micromolecular volatiles, and grinding into powder that is photocatalytic microsphere dried powder. The photocatalytic composite microspheres herein can degrade gaseous organic pollutants, can also kill harmful bacteria and is widely applicable.

Description

technical field [0001] The invention relates to the technical field of chemical engineering, in particular to a method for preparing photocatalytic composite microspheres. Background technique [0002] The problem of human living environment has always been concerned by the scientific community. A large number of surveys and analyzes have shown that people spend about 90% of their time indoors, and poor indoor air is the main factor causing many health problems. With the improvement of people's living standards, home decoration is becoming more and more luxurious and comfortable. However, people are facing the problem of indoor air pollution while enjoying a comfortable home environment. Among them, the problem of formaldehyde and germs is particularly prominent. Photocatalytic materials can directly use sunlight to degrade organic pollutants in water or air. Photocatalytic technology has great potential in indoor environmental pollution control. [0003] TiO 2 Photocata...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/02B01J31/38B01J35/08B01D53/86
CPCB01D53/8668B01D2255/20707B01D2255/802B01J13/02B01J31/38B01J35/004B01J35/08
Inventor 尤子满
Owner 尤子满
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