Nano titanium dioxide composite material applicable to wastewater treatment

A technology of nano-titanium dioxide and composite materials, applied in the field of nano-titanium dioxide composite materials, can solve the problems of mixed loss of titanium dioxide, difficult to handle quantity, low quantum efficiency, etc., and achieve the effect of improving photocatalytic activity and light utilization rate

Inactive Publication Date: 2016-06-29
GUANGXI UNIV
View PDF2 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondly, the quantum efficiency of nano-titanium dioxide is low, and it is difficult to treat large quantities and high-concentration wastewater
Thirdly, the application of nano-titanium dioxide in wastewater treatment is generally treated by suspension dispersion method, and nano-titanium dioxide is easy to mix and lose titanium dioxide

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

[0018] In the nano-titanium dioxide composite material used in wastewater treatment according to the present invention, the ratio of a) nano-titanium dioxide to b) the mass fraction of the adsorptive porous material is 1:5.

[0019] Graphene is selected as the adsorptive porous material.

[0020] Described nano-titanium dioxide modified material selects La 3+ , Ni, La 3+ The loading amount of Ni is 0.5% of the mass of nano-titanium dioxide, and the loading amount of Ni is 0.5% of the mass of nano-titania.

Embodiment 2

[0022] In the nano-titanium dioxide composite material used in wastewater treatment according to the present invention, the ratio of a) the nano-titanium dioxide to b) the mass fraction of the adsorptive porous material is 1:4.

[0023] The adsorbent porous material is selected from graphene and activated carbon.

[0024] The nano-titanium dioxide modified material is selected from Ag, and its loading amount is 0.3% of the mass of the nano-titanium dioxide.

Embodiment 3

[0026] In the nano-titanium dioxide composite material used in wastewater treatment according to the present invention, the ratio of a) nano-titanium dioxide to b) adsorptive porous material is 2:25.

[0027] Attapulgite, bentonite and zeolite are selected as the adsorptive porous material.

[0028] The nano-titanium dioxide modified material is Cr, and its load is 0.5% of the mass of the nano-titanium dioxide.

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 nano-titanium dioxide composite material for wastewater treatment, which is composed of (a) nano-titanium dioxide, (b) adsorptive porous material and (c) nano-titanium dioxide modified material; the nano-titanium dioxide modified material includes Inert metals Ag, Au, Pt or/and transition metal ions Cr, Mn, Fe, Co, Ni, Cu or/and rare earth metal ions La 3+ , Y 3+ 、Eu 3+ Or/and Fe‑Sn, Fe‑La. The nano-titanium dioxide composite material of the present invention is composed of nano-titanium dioxide modified material, nano-titanium dioxide, and adsorptive porous material, which improves the photocatalytic activity of nano-titanium dioxide and the utilization rate of light, as well as the utilization rate of nano-titanium dioxide. The decomposition of matter has a significant effect.

Description

technical field [0001] The invention relates to a nano-titanium dioxide composite material, in particular to a nano-titanium dioxide composite material applied to wastewater treatment. Background technique [0002] As a semiconductor photocatalyst, there are key technical problems in the practical application of nano-titanium dioxide, which restricts its large-scale industrial application. First of all, the utilization rate of solar energy is low, and the efficiency of photocatalysts that directly use sunlight as a light source to degrade organic pollution is very low. To treat wastewater on a large scale, it is necessary to expand the lighting area to increase the lighting intensity, or use artificial ultraviolet light sources. It is a great problem in terms of design, manufacture and operating costs. Therefore, expanding the response spectrum range of semiconductor photocatalysis, so that it has higher photocatalytic activity in the visible light region, is the direction ...

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): B01J20/20B01J20/12B01J20/16B01J20/14B01J20/10C02F1/28C02F1/30B01J23/83B01J23/50B01J23/26B01J23/10B01J23/89B01J23/66B01J23/835
CPCY02W10/37B01J20/20B01J20/103B01J20/12B01J20/14B01J20/165B01J20/205B01J23/10B01J23/26B01J23/50B01J23/66B01J23/83B01J23/835B01J23/8913B01J35/004B01J2220/42C02F1/281C02F1/30C02F2103/28C02F2103/30
Inventor 郭琴
Owner GUANGXI UNIV
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