Method of preparing C3N4/CaTi2O4(OH)2 composite material through solvothermal method

A technology of C3N4 and composite materials, which is applied in the field of photocatalysis, can solve the problems of difficult preparation and complex compounding, and achieve the effect of low cost, simple process and inhibiting compounding

Active Publication Date: 2017-03-15
JINGDEZHEN CERAMIC INSTITUTE
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the CaTi in this study 2 o 4 (OH) 2 The crystalline phase needs to be prepared in an alkaline environment (pH=8) by the solvothermal method, and C 3 N 4 It can only be s

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
  • Method of preparing C3N4/CaTi2O4(OH)2 composite material through solvothermal method
  • Method of preparing C3N4/CaTi2O4(OH)2 composite material through solvothermal method
  • Method of preparing C3N4/CaTi2O4(OH)2 composite material through solvothermal method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of adopting solvothermal method to prepare C 3 N 4 / CaTi 2 o 4 (OH) 2 A method for composite materials, comprising the steps of:

[0026] Step 1: According to the molar ratio of butyl titanate:ethanol=1:5, dissolve butyl titanate in ethanol, stir until uniform to obtain A solution;

[0027] Step 2: Dissolve calcium chloride in distilled water according to the molar ratio of calcium chloride: distilled water: ethanol = 1: 400: 10, then add ethanol, and stir until uniform to obtain B solution;

[0028] Step 3: Add solution A dropwise into solution B under stirring, add 3ml of 3mol / L NaOH solution after stirring for 5 minutes, adjust the pH value to 8, continue stirring for 15 minutes, filter, and wash with distilled water for 6 times Dry in a vacuum oven at 90°C for 18 hours to form the precursor CaTi 2 o 4 (OH) 2 white precipitate;

[0029] Step 4: According to the precursor CaTi 2 o 4 (OH) 2 : ethanol: distilled water = 1:5:50, the precursor CaTi 2 o...

Embodiment 2

[0033] A kind of adopting solvothermal method to prepare C 3 N 4 / CaTi 2 o 4 (OH) 2 A method for composite materials, comprising the steps of:

[0034] Step 1: According to the molar ratio of isopropyl titanate:propanol=1:5, decompose isopropyl titanate in propanol, and stir until uniform to obtain A solution;

[0035] Step 2: Dissolve calcium chloride in distilled water according to the molar ratio of calcium chloride: distilled water: propanol=1:200:1, then add propanol, and stir until uniform to obtain B solution;

[0036] Step 3: Add solution A drop by drop into solution B under stirring, add 3.5ml of 3mol / L NaOH solution after stirring for 5 minutes, adjust the pH value to 8.5, continue stirring for 15 minutes, filter, and wash with distilled water 6 times Finally, dry it in a vacuum oven at 90°C for 24 hours to form the precursor CaTi 2 o 4 (OH) 2 white precipitate;

[0037] Step 4: According to the precursor CaTi 2 o 4 (OH) 2 : propanol: distilled water = 1:...

Embodiment 3

[0041] A kind of adopting solvothermal method to prepare C 3 N 4 / CaTi 2 o 4 (OH) 2 A method for composite materials, comprising the steps of:

[0042] Step 1: According to the molar ratio of titanium chloride:butanol=1:1, titanium chloride is dissolved in butanol, and stirred until uniform to obtain A solution;

[0043] Step 2: Dissolve calcium chloride in distilled water according to the molar ratio of calcium chloride: distilled water: butanol=1:300:5, then add butanol, and stir until uniform to obtain B solution;

[0044] Step 3: Add solution A dropwise into solution B under stirring, add 3.2ml of 3mol / L NaOH solution after stirring for 5 minutes, adjust the pH value to 8.2, continue stirring for 15 minutes, filter, and wash with distilled water 6 times Finally, dry it in a vacuum oven at 90°C for 20 hours to form the precursor CaTi 2 o 4 (OH) 2 white precipitate;

[0045] Step 4: According to the precursor CaTi 2 o 4 (OH) 2 : butanol: distilled water = 1:7:100...

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 method of preparing a C3N4/CaTi2O4(OH)2 composite material through a solvothermal method. The method includes the following steps: 1) dissolving a titanium compound in an organic solvent, and uniformly stirring the solution to obtain a solution A; 2) dissolving calcium chloride in distilled water, adding an organic solvent, and uniformly stirring the solution to obtain a solution B; 3) dropwise adding the solution A to the solution B under stirring, and adding an alkaline solution to form a precursor CaTi2O4(OH)2; 4) uniformly mixing and stirring the precursor CaTi2O4(OH)2 with an organic solvent and distilled water to obtain a mixture solution C; and 5) adding C3N4 to the mixture solution C to obtain a suspension solution D, adding a strong-acid solution to the suspension solution D, and moving the mixture into a reaction kettle to perform a reaction, and washing and drying a product to obtain the C3N4/CaTi2O4(OH)2 composite material. The method has simple process, low cost and wide market space.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, in particular to a method for preparing C 3 N 4 / CaTi 2 o 4 (OH) 2 Composite methods. Background technique [0002] Photocatalytic degradation is a new and promising wastewater treatment technology for industrial application, but there are problems such as complex preparation process, high cost and difficult recovery of photocatalyst. In recent years, metastable photocatalyst materials have attracted people's close attention. Metastable phase materials refer to metastable aggregates in the thermodynamic sense. Due to the existence of energy barriers, they can generally exist stably, and this metastable phase crystalline material has high catalytic activity. The photocatalytic performance can be greatly improved. In the preliminary work of related research groups, CaTi 2 o 4 (OH) 2 Existing as a metastable phase, it is found that it has good photocatalytic performance, but its 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
IPC IPC(8): B01J27/24
CPCB01J27/24B01J35/004
Inventor 董伟霞包启富顾幸勇
Owner JINGDEZHEN CERAMIC INSTITUTE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap