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Hollow columnar ZnFe2O4/CaTiO3 composite material and preparation method thereof and application thereof

A composite material, znfe2o4 technology, applied in water/sludge/sewage treatment, metal/metal oxide/metal hydroxide catalyst, other chemical processes, etc., can solve problems such as high energy consumption, high price, and difficult recycling , to achieve energy saving, uniform distribution, and excellent magnetic properties

Active Publication Date: 2020-11-10
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional water treatment methods are expensive, energy-intensive, difficult to recycle and low in efficiency. In this context, it is of great significance to seek a green, efficient and easy-to-recycle photocatalyst.

Method used

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  • Hollow columnar ZnFe2O4/CaTiO3 composite material and preparation method thereof and application thereof
  • Hollow columnar ZnFe2O4/CaTiO3 composite material and preparation method thereof and application thereof
  • Hollow columnar ZnFe2O4/CaTiO3 composite material and preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] (1) Wash the fresh leaves with deionized water first, cut off the edges of the leaves with scissors, cut the leaves into pieces of about 3mm*3mm, and store them in a dark place for later use;

[0050] (2) Weigh 0.3525g CaCO 3 Place in 10mL deionized water and stir 180W ultrasonically for 20min to obtain calcium source suspension, weigh 0.5287g TiOSO 4 Place in 10mL of deionized water with 180W ultrasonic stirring for 20min, then continue stirring at 40°C to obtain a titanium source solution, and weigh 0.1438g of ZnSO 4 ·7H 2 O was dissolved in 5mL deionized water to obtain a zinc source solution, and 0.2781g FeSO was weighed 4 ·7H 2 O was dissolved in 8 mL deionized water to obtain iron source solution, and 0.1796 g H 2 C 2 o 4 Place in 10mL deionized water and stir to dissolve to obtain H 2 C 2 o 4 solution, weigh 1.000g CO(NH 2 ) 2 Place in 10mL deionized water and stir evenly to obtain CO(NH 2 ) 2 solution;

[0051] (3) mixing and stirring the zinc sour...

Embodiment 2

[0061] (1) Wash the fresh leaves with deionized water first, cut off the edges of the leaves with scissors, cut the leaves into pieces of about 3mm*3mm, and store them in a dark place for later use;

[0062] (2) Weigh 0.5000g CaCO 3 Place in 15mL deionized water and stir 180W ultrasonically for 30min to obtain calcium source suspension, weigh 0.7000g TiOSO 4 Place in 15mL of deionized water and stir 180W ultrasonically for 30min, then continue to stir at 40°C to obtain a titanium source solution, weigh 0.1650g ZnSO 4 ·7H 2 O was dissolved in 5mL deionized water to obtain a zinc source solution, and 0.3350g FeSO 4 ·7H 2 O was dissolved in 10mL deionized water to obtain iron source solution, and 0.2178g H 2 C 2 o 4 Place in 10mL deionized water and stir to dissolve to obtain H 2 C 2 o 4 solution, weigh 1.000g CO(NH 2 ) 2 Place in 15mL deionized water and stir evenly to obtain CO(NH 2 ) 2 solution;

[0063] (3) mixing and stirring the zinc source solution and the ir...

Embodiment 3

[0072] (1) Wash the fresh leaves with deionized water first, cut off the edges of the leaves with scissors, cut the leaves into pieces of about 3mm*3mm, and store them in a dark place for later use;

[0073] (2) Weigh 0.8000g CaCO 3 Place in 15mL deionized water and stir 180W ultrasonically for 25min to obtain calcium source suspension, weigh 1.3280g TiOSO 4 Place in 15mL of deionized water and stir 180W ultrasonically for 30min, then continue to stir at 40°C to obtain titanium source solution, weigh 0.2180g ZnSO 4 ·7H 2 O was dissolved in 8mL deionized water to obtain a zinc source solution, and 0.4500g FeSO was weighed 4 ·7H 2 O was dissolved in 15mL deionized water to obtain iron source solution, and 0.2870g H 2 C 2 o 4 Place in 12mL deionized water and stir to dissolve to obtain H 2 C 2 o 4 solution, weigh 1.000gCO(NH 2 ) 2 Place in 10mL deionized water and stir evenly to obtain CO(NH 2 ) 2 solution;

[0074] (3) mixing and stirring the zinc source solution a...

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Abstract

The invention provides a magnetic recoverable hollow columnar ZnFe2O4 / CaTiO3 composite material and a preparation method thereof and application thereof. The hollow columnar composite material is prepared by adopting leaf veins as a structure carrier, cheap and easily available CaCO3 is used as a calcium source to replace soluble calcium salt, acid mixed in the titanium source dissolves the calcium source to obtain calcium ions, weak acid H2C2O4 replaces H2SO4 or HNO3 and other strong acid regulators, weak base CO (NH2) 2 replaces NaOH or KOH and other strong base regulators, and strong acid and strong base pollution in the preparation process is effectively avoided. The invention provides the preparation method thereof which has an adsorption effect and is recyclable in magnetism withoutstrong acid, strong alkali and high-temperature calcination, the prepared composite material is in a hollow columnar ZnFe2O4 / CaTiO3, is uniformly distributed and has excellent magnetic performance, the recycling of the composite material is effectively improved. The invention has a certain adsorption effect and good photocatalytic performance, and has a good application prospect.

Description

[0001] (1) Technical field [0002] The invention relates to a hollow columnar ZnFe 2 o 4 / CaTiO 3 Composite materials and their preparation methods and applications. [0003] (2) Background technology [0004] With the continuous development of society, environmental problems follow, and the problem of water resources and its pollution is becoming more and more serious, which brings unprecedented challenges to human production and life. Traditional water treatment methods are expensive, energy-intensive, difficult to recycle, and low in efficiency. Under this background, it is of great significance to seek a green, efficient and easy-to-recycle photocatalyst. [0005] Perovskites are widely used in electroceramic materials, photocatalytic reduction of CO due to their excellent dielectric properties, catalytic properties, biocompatibility and optical properties. 2 , anti-corrosion, architectural coatings, low temperature co-fired ceramics, live cell imaging and degradation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J35/02B01J20/06B01J20/04B01J20/28C02F1/28C02F1/30C02F101/38B01J35/00
CPCB01J23/80B01J20/06B01J20/041B01J20/28014C02F1/30C02F1/281C02F2305/10C02F2101/40B01J35/00B01J35/30B01J35/33B01J35/39Y02W10/37
Inventor 孙青占文卿张俭盛嘉伟
Owner ZHEJIANG UNIV OF TECH
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