Check patentability & draft patents in minutes with Patsnap Eureka AI!

Novel photocatalytic material TiO2@Fe2O3, SrTiO3@Fe2O3 preparation and application

A composite material and reaction technology, applied in chemical/physical processes, light water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem that pure photocatalytic materials are difficult to meet all requirements, and achieve good UV- Visible absorption, strong practicability and good repeatability

Inactive Publication Date: 2017-07-21
SHANDONG NORMAL UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TiO 2 1. Titanate is one of the best photocatalytic materials at present, but it is difficult for pure photocatalytic materials to meet all requirements in photocatalysis. In order to improve photocatalytic activity and efficiency, new photocatalysts must be designed and synthesized

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
  • Novel photocatalytic material TiO2@Fe2O3, SrTiO3@Fe2O3 preparation and application
  • Novel photocatalytic material TiO2@Fe2O3, SrTiO3@Fe2O3 preparation and application
  • Novel photocatalytic material TiO2@Fe2O3, SrTiO3@Fe2O3 preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Nanomaterial TiO 2 The nanoribbons are dispersed in ethanol solution to form a 0.1mg / mL solution.

[0047] (2) Take 4 mL of the solution dispersed in step (1) and sonicate for 10 min at an ultrasonic power of 50 W, add 8 drops of the prepared sodium amalgam and shake for 10 min.

[0048] (3) Remove the sodium amalgam in the solution of step (2), add 4 drops of 2mg / mLFe 2 o 3 The solution was placed in the reduced ethanol solution, and the ultrasonic power was 50W for 8 minutes. Centrifugal separation to obtain TiO 2 @Fe 2 o 3 Nanophotocatalytic composites, TEM dispersed in ethanol as figure 2 As shown in A, the XRD analysis of nanomaterials is as follows figure 1 As shown in A.

[0049] (4) TiO to be prepared 2 Nanobelt, TiO 2 @Fe 2 o 3 Take 2 mg of the composite materials and dissolve them in 20 mL of methylene blue (10 mg / L) solution;

[0050] (5) Shake the solution for 10 minutes in the dark, so that the photocatalyst-pollutant molecules reach an ad...

Embodiment 2

[0054] (1) Take the nano material TiO 2 The nanoribbons are dispersed in ethanol solution to form a 0.1mg / mL solution.

[0055] (2) Take 4 mL of the solution dispersed in step (1) and sonicate for 8 min at an ultrasonic power of 50 W, add 5 drops of 2 mg / mL sodium borohydride solution, and shake for 10 min.

[0056] (3) Centrifuge the solution obtained in step (2), pour off the supernatant, add 4 mL of ethanol to redisperse the sample, and then add 4 drops of 2 mg / mL Fe 2 o 3 The solution was dispersed in ethanol solution, and ultrasonically reacted, the ultrasonic time was 10min, and the ultrasonic power was 100W. Filtration and separation to obtain TiO 2 @Fe 2 o 3 Nanophotocatalytic composites. showed that TiO 2 @Fe 2 o 3 Nano-photocatalytic composite materials can be stably synthesized under different ultrasonic power and time, which provides raw materials for photocatalytic degradation of organic matter.

[0057] (4) TiO to be prepared 2 Nanobelt, TiO 2 @Fe 2 ...

Embodiment 3

[0061] (1) Take commercially available TiO 2 Nanoparticles are dispersed in ethanol solution to form a 0.1mg / mL solution.

[0062] (2) Take 4 mL of the solution dispersed in step (1) and sonicate for 8 min at an ultrasonic power of 50 W, add 5 drops of 3 mg / mL ascorbic acid solution, and shake for 10 min.

[0063] (3) Centrifuge the solution obtained in step (2), pour off the supernatant, add 4 mL of ethanol to redisperse the sample, and then add 4 drops of 2 mg / mL Fe 2 o 3 The solution was dispersed in ethanol solution, and ultrasonically reacted, the ultrasonic time was 10min, and the ultrasonic power was 50W. Evaporate the solvent to get TiO 2 @Fe 2 o 3 Nanophotocatalytic composites. showed that TiO 2 @Fe 2 o 3 Nano-photocatalytic composite materials can be stably synthesized under different ultrasonic power and time, which provides raw materials for photocatalytic degradation of organic matter.

[0064] (4) the commercially available TiO 2 Nanoparticles, TiO 2 ...

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 provides a method for preparing nano photocatalytic composite materials according to an oxidation-reduction mechanism. The method includes: dispersing Ti-containing reaction precursors into a liquid-phase medium to obtain reaction precursor dispersion liquid; in existence of a reducing agent, reducing Ti(IV) on surfaces of nano particles in the eaction precursor dispersion liquid into a low oxidation state of titanium to obtain reaction precursor reduction liquid; well mixing the reaction precursor reduction liquid with Fe2O3 solution to realize complete reaction, and separating products to obtain the nano photocatalytic composite materials. The method is simple in operation, short in time, low in cost, environmental friendly, high in repeatability, high in efficiency and quick and effective in preparation of the nano photocatalytic composite materials and has universality and mass production values. The prepared nano photocatalytic composite materials TiO2@Fe2O3, SrTiO3@Fe2O3 are great in ultraviolet-visible absorption range, photocatalytic degradation efficiency is greatly improved, and a promising application prospect in fields of water pollution treatment and organic waste treatment is achieved.

Description

technical field [0001] The invention belongs to the technical field of preparation of nano-photocatalytic composite materials, in particular to a novel photocatalytic material TiO 2 @Fe 2 o 3 , SrTiO 3 @Fe 2 o 3 preparation and application. Background technique [0002] Photocatalytic technology continues to develop, and has become an ideal technology for environmental pollution control and treatment in the 21st century, and has received extensive attention. Water pollution is a major problem facing global development. People are eager to find effective ways to control water pollution. Nano-semiconductor photocatalytic oxidation has become a research hotspot in recent years due to its advantages of high efficiency, low energy consumption, and no secondary pollution. TiO 2 1. Titanate is one of the best photocatalytic materials at present, but it is difficult for pure photocatalytic materials to meet all requirements in photocatalysis. In order to improve photocatalyti...

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): B01J23/745B01J23/78C02F1/30C02F1/32C02F101/38
CPCC02F1/30C02F1/32B01J23/002B01J23/745B01J23/78C02F2101/308C02F2305/10C02F2101/40C02F2101/38B01J2523/00B01J35/39B01J2523/24B01J2523/47B01J2523/842
Inventor 李志华付颖刘玉香李娜马惠云唐波
Owner SHANDONG NORMAL UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com