Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method for Ag3PO4/TiOF2 composite photo-catalyst

A technology of catalyst and composite light, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve high photocatalytic activity, good stability, and simple production equipment.

Active Publication Date: 2014-11-12
YANCHENG INST OF TECH
View PDF12 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no Ag 3 PO 4 with TiOF 2 Documents and patents of composite photocatalysts prepared by compounding

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for Ag3PO4/TiOF2 composite photo-catalyst
  • Preparation method for Ag3PO4/TiOF2 composite photo-catalyst
  • Preparation method for Ag3PO4/TiOF2 composite photo-catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Preparation of Ag 3 PO 4 with TiOF 2 Ag with a molar ratio of 1:0.2 3 PO 4 / TiOF 2 composite photocatalyst.

[0016] Synthesis of TiOF by Hydrothermal Method 2 , weighed 0.45g of TiF 4 , into the lining of the hydrothermal reactor, and then add 20mL of n-butanol, in TiF 4 When it is not completely dissolved, quickly add 0.2mL of hydrofluoric acid with a mass percentage of 48%. After the reaction kettle is sealed and covered, it is placed in a blast drying oven, and it is hydrothermally reacted at 200°C for 6 hours. TiOF was obtained by centrifuging three times with water and ethanol 2 Sample; Weigh 0.12gTiOF 2 sample, ultrasonically dispersed in deionized water for 30 minutes to obtain TiOF 2 Suspension; then weigh 1.0g silver acetate and add to TiOF under stirring condition 2 In the suspension, add Na at a concentration of 0.15mol / L dropwise 2 HPO 4 Solution 13.5mL, a light yellow precipitate was formed, and was centrifuged and washed 3 times with deionize...

Embodiment 2

[0019] Preparation of Ag 3 PO 4 with TiOF 2 Ag at a molar ratio of 1:1 3 PO 4 / TiOF 2 composite photocatalyst.

[0020] Synthesis of TiOF by Hydrothermal Method 2 , weighed 0.45g of TiF 4 , into the lining of the hydrothermal reactor, and then add 20mL of n-butanol, in TiF 4 When it is not completely dissolved, quickly add 0.2mL of hydrofluoric acid with a mass percentage of 48%. After the reaction kettle is sealed and covered, it is placed in a blast drying oven, and it is hydrothermally reacted at 200°C for 8 hours. TiOF was obtained by centrifuging three times with water and ethanol 2 Sample; Weigh 0.19gTiOF 2 The sample was ultrasonically dispersed in deionized water for 20 minutes to obtain TiOF 2 Suspension; then weigh 0.32g of silver acetate and add to TiOF under stirring condition 2 In the suspension, add Na at a concentration of 0.15mol / L dropwise 2 HPO 4 Solution 4.2mL, a light yellow precipitate was formed, and was centrifuged and washed 3 times with de...

Embodiment 3

[0023] Preparation of Ag 3 PO 4 with TiOF 2 Ag with a molar ratio of 1:5 3 PO 4 / TiOF 2 composite photocatalyst.

[0024] Synthesis of TiOF by Hydrothermal Method 2 , weighed 0.45g of TiF 4 , into the lining of the hydrothermal reactor, and then add 20mL of n-butanol, in TiF 4 When it is not completely dissolved, quickly add 0.2mL of hydrofluoric acid with a mass percentage of 48%, seal and cover the reaction kettle, put it in a blast drying oven, and conduct a hydrothermal reaction at 200°C for 5 hours. TiOF was obtained by centrifuging three times with water and ethanol 2 Sample; Weigh 0.62gTiOF 2 The sample was ultrasonically dispersed in deionized water for 60 minutes to obtain TiOF 2 Suspension; then weigh 0.20g of silver acetate and add to TiOF under stirring condition 2 In the suspension, add Na at a concentration of 0.15mol / L dropwise 2 HPO 4 Solution 2.7mL, a light yellow precipitate was formed, and was centrifuged and washed 3 times with deionized water,...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method for an Ag3PO4 / TiOF2 composite photo-catalyst. The preparation method for the Ag3PO4 / TiOF2 composite photo-catalyst comprises the following steps: synthesizing TiOF2 by using a hydrothermal method, namely weighing 0.3-0.5g of TiF4 and adding to the lining of a hydrothermal reaction kettle, subsequently adding 20-30mL of n-butyl alcohol, quickly adding 0.1-0.2mL of hydrofluoric acid with a mass percent being 48% when TiF4 is not completely dissolved, sealing and covering the reaction kettle and subsequently putting the reaction kettle into an air-blowing drying box, carrying out hydrothermal reaction at 190-210 DEG C for 5-8 hours and washing a product after reacting for three times by using absolute ethyl alcohol to obtain a TiOF2 sample; weighing 0.12-0.62g of the TiOF2 sample, ultrasonically dispersing the TiOF2 sample in deionized water for 20-60 minutes to obtain TiOF2 suspension liquid; further weighing 0.2-1.0g of silver acetate, adding the silver acetate into the TiOF2 suspension liquid by stirring, dropwise adding 2-15mL of 0.15mol / L Na2HPO4 solution to form pale yellow sediment, washing the sediment with the deionized water for three times by centrifuging, and finally drying product at 80-100 DEG C in the air-blowing drying box for 10-15 hours to obtain the Ag3PO4 / TiOF2 composite photo-catalyst.

Description

technical field [0001] The present invention relates to the preparation method of photocatalyst, relate in particular to a kind of Ag 3 PO 4 / TiOF 2 Preparation method of composite photocatalyst. Background technique [0002] In recent years, environmental pollution has seriously affected human health. Photocatalytic technology can be used to degrade pollutants and thereby purify the environment. with TiO 2 The representative traditional photocatalytic materials cannot absorb and utilize visible light, which accounts for 45% of solar energy, due to their wide band gap. Therefore, efforts have been made to develop new photocatalytic materials that respond to visible light. Recently, Ye Jinhua's research group found that Ag 3 PO 4 It is a new type of visible light responsive photocatalytic material, and its photocatalytic activity is more than ten times that of the known nitrogen-doped titanium oxide photocatalyst and much higher than other visible light responsive pho...

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 Applications(China)
IPC IPC(8): B01J27/18C02F1/30C02F103/30
Inventor 董鹏玉侯贵华王健陶泽天张勤芳
Owner YANCHENG INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com