Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of snowflake-like zn-cu-w photocatalyst

A photocatalyst, zn-cu-w technology, applied in the field of photocatalysis, can solve the problems of high photogenerated electron-hole recombination rate and low utilization rate of sunlight, and achieve excellent effect, good catalytic effect and high visible light catalytic activity. Effect

Active Publication Date: 2019-03-19
HEZE UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the disadvantages of low utilization rate of sunlight and high recombination rate of photogenerated electron-hole pairs, which are difficult to overcome.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of preparation method of novel snowflake shape Zn-Cu-W photocatalyst, comprises the following steps:

[0020] Mix 10ml of methanol, 10ml of isopropanol, and 20ml of water to form a microemulsion; put the above mixed system into a beaker, and transfer the beaker to a 25°C constant temperature water bath stirrer, raise the temperature to 45°C and add 2g of zinc sulfate, 3.5 1 g of copper chloride, 4.3 g of sodium tungstate was ultrasonically dissolved in an ultrasonic cleaner for 20 min, and the ultrasonic power was 500 W. After the sample was completely dissolved, 1 ml of 2% urea solution was added dropwise, and stirring was continued for 30 min; the prepared solution was added to In a steady-state static magnetic field environment of 2 Tesla, the reaction was continued for 12 hours, and the temperature was heated by a water bath, and the temperature was controlled at 30°C; after the reaction was completed, it was filtered, washed, and dried to obtain a snowflake-l...

Embodiment 2

[0022] A kind of preparation method of novel snowflake shape Zn-Cu-W photocatalyst, comprises the following steps:

[0023] Mix 10ml of methanol, 10ml of isopropanol, and 20ml of water to form a microemulsion; put the above mixed system into a beaker, and transfer the beaker to a 25°C constant temperature water bath stirrer, raise the temperature to 45°C and add 2g of zinc sulfate, 3.5 4.3 g of copper chloride and 4.3 g of sodium tungstate were ultrasonically dissolved in an ultrasonic cleaner for 20 min, and the ultrasonic power was 100 W. After the sample was completely dissolved, 1 ml of 2% urea solution was added dropwise, and stirring was continued for 30 min; the prepared solution was added to In a steady-state static magnetic field environment of 6 Tesla, the reaction was continued for 10 hours, and the temperature was heated by a water bath, and the temperature was controlled at 30°C; after the reaction was completed, it was filtered, washed, and dried to obtain a snowf...

Embodiment 3

[0025] A kind of preparation method of novel snowflake shape Zn-Cu-W photocatalyst, comprises the following steps:

[0026] Mix 10ml of methanol, 10ml of isopropanol, and 20ml of water to form a microemulsion; put the above mixed system into a beaker, and transfer the beaker to a 25°C constant temperature water bath stirrer, raise the temperature to 45°C and add 2g of zinc sulfate, 3.5 Dissolve 4.3 g of copper chloride and 4.3 g of sodium tungstate ultrasonically in an ultrasonic cleaner for 20 min with an ultrasonic power of 700 W. After the sample is completely dissolved, add 1 ml of 2% urea solution drop by drop and continue stirring for 30 min; add the prepared solution to In a steady-state static magnetic field environment of 10 Tesla, the reaction was continued for 25 hours, and the temperature was heated by a water bath, and the temperature was controlled at 30°C; after the reaction was completed, filtered, washed, and dried to obtain a snowflake-like Zn-Cu-W photocataly...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a novel preparation method for a snowflake Zn-Cu-W photocatalyst. The novel preparation method comprises the following steps: mixing methanol, isopropanol and water to preparemicro emulsion; adding zinc sulfate, copper chloride and sodium tungstate after heating a mixing system, performing ultrasonic dissolving for 10-30 minutes with ultrasonic power of 20-800 W, adding aurea solution drop by drop after a sample is completely dissolved, uniformly stirring, putting the prepared solution into a steady-state static magnetic field environment, reacting for 2-30 hours, andfiltering, washing and drying after reaction is ended, thereby obtaining the snowflake Zn-Cu-W photocatalyst. A ternary photocatalyst prepared by the novel preparation method has a snowflake morphology, is high in visible light catalysis activity and is good in catalysis effect.

Description

technical field [0001] The invention belongs to the technical field of photocatalysis, and in particular relates to a preparation method of a novel snowflake-shaped Zn-Cu-W photocatalyst. Background technique [0002] With the rapid economic development and the continuous consumption of fossil fuels, the resulting environmental and energy issues have become increasingly prominent. Photocatalytic technology has attracted more and more attention as a green way to use solar energy to treat the polluted environment and produce alternative energy from fossil fuels. In 1972, Japanese scientists such as Fujishima discovered TiO 2 Single crystal electrodes can realize photocatalytic water splitting (Fujishima A., 1972), and later discovered nano-TiO 2 Has the ability to photocatalytically degrade organic matter, TiO 2 It has become a research hotspot in the field of materials. However, it has the disadvantages of low utilization rate of sunlight and high recombination rate of ph...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/888B01J35/02B01J37/34C02F1/30C02F101/20
CPCB01J23/888B01J35/004B01J35/02B01J37/342C02F1/30C02F2101/20C02F2305/10
Inventor 薛守庆马心英张学周马远忠周胜广郭明晰吴晶斌李伟男
Owner HEZE UNIV