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A kind of nickel foam supported zinc titanate/tourmaline photocatalytic material and preparation method thereof

A catalytic material, zinc titanate technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve harsh catalytic regeneration conditions, poor ceramic tensile strength , small effective area and other problems, to achieve the effect of improving photocatalytic capacity, low manufacturing cost, and no secondary pollution

Active Publication Date: 2020-12-08
HARBIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, zinc titanate is combined with ceramics, and the density of ceramics is relatively high, which is easy to deposit, and the effective area exposed to light in the process of photodegradation and catalysis is small; it is easy to be polluted, and the catalytic regeneration conditions are harsh after being polluted; Poor tensile strength, can not be molded in use

Method used

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  • A kind of nickel foam supported zinc titanate/tourmaline photocatalytic material and preparation method thereof
  • A kind of nickel foam supported zinc titanate/tourmaline photocatalytic material and preparation method thereof
  • A kind of nickel foam supported zinc titanate/tourmaline photocatalytic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of preparation method of nickel foam supported zinc titanate / tourmaline photocatalytic material

[0050] Soak nickel foam (2cm×5cm) in absolute ethanol for 20min, then take it out, rinse it with deionized water, then soak it in 0.1mol / L dilute hydrochloric acid for 10min, after taking it out, ultrasonically clean it with deionized water Wash for 20 minutes, dry at 80°C for 5 hours and set aside;

[0051] ZnTiO 3 , tourmaline and SiO 2 Mix evenly according to the mass ratio: 1:0.03:1.2, then put it into an agate mortar and grind for 10 minutes;

[0052] Mix polytetrafluoroethylene (PTFE) and absolute ethanol at a volume ratio of 1:5, then magnetically stir for 4 minutes to form a uniform suspension A; under the condition of magnetic stirring, grind the zinc titanate / electric Stone / SiO 2 Put the mixed powder into the above-mentioned suspension A, and continue to stir for 5 minutes to form a uniform suspension B;

[0053] The suspension B is evenly coated on th...

Embodiment 2

[0055] A kind of preparation method of nickel foam supported zinc titanate / tourmaline photocatalytic material

[0056] Soak nickel foam (2cm×5cm) in absolute ethanol for 20min, then take it out, rinse it with deionized water, then soak it in 0.1mol / L dilute hydrochloric acid for 10min, after taking it out, ultrasonically clean it with deionized water Wash for 20 minutes, dry at 80°C for 5 hours and set aside;

[0057] ZnTiO 3 , tourmaline and SiO 2 Mix evenly according to the mass ratio: 1:0.03:1, then put it into an agate mortar and grind for 10 minutes;

[0058] Mix polytetrafluoroethylene (PTFE) and absolute ethanol at a volume ratio of 1:5, then magnetically stir for 4 minutes to form a uniform suspension A; under the condition of magnetic stirring, grind the zinc titanate / electric Stone / SiO 2 Put the mixed powder into the above-mentioned suspension A, and continue to stir for 5 minutes to form a uniform suspension B;

[0059] The suspension B is evenly coated on the ...

Embodiment 3

[0061] A kind of preparation method of nickel foam supported zinc titanate / tourmaline photocatalytic material

[0062] Soak nickel foam (2cm×5cm) in absolute ethanol for 20min, then take it out, rinse it with deionized water, then soak it in 0.1mol / L dilute hydrochloric acid for 10min, after taking it out, ultrasonically clean it with deionized water Wash for 20 minutes, dry at 80°C for 5 hours and set aside;

[0063] ZnTiO 3 , tourmaline and SiO 2 Mix evenly according to the mass ratio: 1:0.03:0.8, then put it into an agate mortar and grind for 10 minutes;

[0064]Mix polytetrafluoroethylene (PTFE) and absolute ethanol at a volume ratio of 1:5, then magnetically stir for 4 minutes to form a uniform suspension A; under the condition of magnetic stirring, grind the zinc titanate / electric Stone / SiO 2 Put the mixed powder into the above-mentioned suspension A, and continue to stir for 5 minutes to form a uniform suspension B;

[0065] The suspension B is evenly coated on the...

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Abstract

The invention relates to a foamed nickel-loaded zinc titanate / tourmaline photocatalytic material and a preparation method thereof. The preparation method comprises the following steps: taking foamed nickel as a matrix, uniformly coating zinc titanate / tourmaline light / template agent mixed suspension on a thin layer to form a zinc titanate / tourmaline / template agent composite carrier; soaking and dissolving out by the template agent, and drying to form the foamed nickel-loaded zinc titanate / tourmaline photocatalytic material. The preparation method specifically comprises the following steps: forming turbid liquid A from polytetrafluoroethylene (PTFE) and ethanol, and adding zinc titanate, tourmaline and the template agent into the turbid liquid A according to a certain ratio so as to form turbid liquid B; uniformly coating the turbid liquid B onto the foamed nickel, drying and soaking into the template dissolved-out solution for dissolving out the template agent, and flushing with deionized water and drying; and finally obtaining the foamed nickel-loaded zinc titanate / tourmaline photocatalytic material. According to the method disclosed by the invention, preparation of the foamed nickel-loaded zinc titanate / tourmaline photocatalytic material is realized, the binding force between materials is firm, and the prepared product has high catalytic activity on organic matter degradationin an ultraviolet light range, and has obvious advantages of being long in service life, easy to recover, free in secondary pollution and the like; and the whole process is simple in operation, shortin cycle, energy-saving and low in manufacturing cost. The invention relates to a photocatalytic material for water treatment.

Description

technical field [0001] The invention relates to a photocatalytic material for water treatment, a nickel-foamed zinc titanate / tourmaline photocatalytic material and a preparation method thereof. Background technique [0002] Nano-TiO 2 Powder has been proved to be an efficient, non-toxic and stable photocatalytic material in recent years' research, and it has good photocatalytic activity in both liquid phase reaction and gas phase reaction, but due to TiO 2 The band gap is wide (3.2eV anatase phase, 3.0eV rutile phase), so that it can only absorb ultraviolet light which accounts for very little of the total energy of sunlight. At the same time due to TiO 2 Photogenerated electrons and holes recombine quickly, resulting in low photon quantum efficiency. At present, researchers use methods such as transition metal ion doping and semiconductor recombination to broaden its photoresponse region and inhibit the recombination of photogenerated electrons and holes to improve its p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/80B01J35/04C02F1/32C02F101/30
CPCB01J23/002B01J23/80B01J35/004B01J35/04C02F1/32C02F2101/305C02F2101/308C02F2305/10
Inventor 李俊生关天宇左金龙谭冲夏至
Owner HARBIN UNIV OF COMMERCE
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