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Foamed nickel-loaded zinc titanate photocatalytic material and preparation method thereof

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

Active Publication Date: 2019-03-19
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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  • Foamed nickel-loaded zinc titanate photocatalytic material and preparation method thereof
  • Foamed nickel-loaded zinc titanate photocatalytic material and preparation method thereof
  • Foamed nickel-loaded zinc titanate photocatalytic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Preparation method of nickel foam supported zinc titanate photocatalytic material

[0044] 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;

[0045] ZnTiO 3 and SiO 2 Mix evenly according to the mass ratio: 1:1.2, and then put it into an agate mortar for grinding for 10 minutes;

[0046] Mix polytetrafluoroethylene (PTFE) and absolute ethanol at a volume ratio of 1:5, and then magnetically stir for 4 minutes to form a uniform suspension A; under the condition of magnetic stirring, grind ZnTiO 3 / 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;

[0047] Evenly coat the suspension B on a nickel foam (2cm×5cm) sheet, then place it in a drying bo...

Embodiment 2

[0049] Preparation method of nickel foam supported zinc titanate 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 and SiO 2 Mix evenly according to the mass ratio of 1:1, and 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, and then magnetically stir for 4 minutes to form a uniform suspension A; under the condition of magnetic stirring, grind ZnTiO 3 / 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 the nickel foam (2cm × 5cm) sheet, then it is placed in a...

Embodiment 3

[0055] Preparation method of nickel foam supported zinc titanate 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 and SiO 2 Mix evenly according to the mass ratio: 1:0.8, and then put it into an agate mortar for grinding for 10 minutes;

[0058] Mix polytetrafluoroethylene (PTFE) and absolute ethanol at a volume ratio of 1:5, and then magnetically stir for 4 minutes to form a uniform suspension A; under the condition of magnetic stirring, grind ZnTiO 3 / 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 nickel foam (2cm × 5cm) sheet, then it is placed i...

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Abstract

The invention relates to a foamed nickel-loaded zinc titanate photocatalytic material and a preparation method thereof. The preparation method comprises the following steps: taking foamed nickel as amatrix, uniformly coating zinc titanate template agent mixed suspension on a thin layer to form a zinc titanate / template agent composite carrier; soaking and dissolving out by the template agent, anddrying to form the foamed nickel-loaded zinc titanate (ZnTiO3) photocatalytic material. The preparation method specifically comprises the following steps: forming turbid liquid A from polytetrafluoroethylene (PTFE) and ethanol, and adding ZnTiO3 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 thefoamed 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 ZnTiO3 photocatalytic material. According to the method disclosed by the invention, preparation of the foamed nickel-loaded ZnTiO3 photocatalytic material is realized, the binding force between materials is firm, and the prepared product has high catalytic activity on organic matter degradation in an ultraviolet light range, and has obvious advantages of being long in service life, easy torecover, free in secondary pollution and the like; and the whole process is simple in operation, short in cycle, energy-saving and low in manufacturing cost. The invention relates to a photocatalyticmaterial for water treatment.

Description

technical field [0001] The invention relates to a photocatalytic material for water treatment, a nickel-foamed zinc titanate 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 photocatalyt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J35/04C02F1/32C02F101/30
CPCC02F1/32B01J23/002B01J23/80C02F2101/308C02F2101/305C02F2305/10B01J35/56B01J35/39
Inventor 李俊生左金龙关天宇谭冲姜黎明
Owner HARBIN UNIV OF COMMERCE
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