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

Light conversion enhanced photocatalysis composite material and preparation method thereof

A composite material and photocatalytic technology, which is applied in the field of light conversion enhanced photocatalytic composite material and its preparation, to achieve stable performance, enhanced response spectrum intensity, and improved effect

Active Publication Date: 2013-04-10
NANJING TECH UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, this new type of photocatalytic composite material integrating photoconversion and photocatalysis has not been reported.

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
  • Light conversion enhanced photocatalysis composite material and preparation method thereof
  • Light conversion enhanced photocatalysis composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] 1. (1) will be doped with 2mol% Yb 3+ and 0.1mol% Tm 3+ A transparent rare earth silicate glass rod (commercially available, 3.0 mm in diameter, such as figure 1 Shown in part 1 of ) in absolute ethanol solution to wash 2 times to remove surface impurities. (2) Ta with a purity of 99.99% 2 o 5As the raw material of the photocatalytic film layer, a certain thickness of Ta was deposited on the surface of the glass rod by radio frequency magnetron sputtering. 2 o 5 Nano-membrane, the thickness of the nano-membrane is controlled to be about 450 nanometers. (3) Deposit Ta on the surface 2 o 5 The transparent rare earth silicon hydrochloric acid glass rod with nano-film layer is placed in an atmosphere furnace with ammonia gas (20mL / min), and treated at 800°C for 15 hours, which can make Ta 2 o 5 The film is transformed into a TaON film. (4) the transparent rare earth silica hydrochloric acid glass rod that the surface is coated with TaON nanofilm is in the H of 5% ...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a light conversion enhanced photocatalysis composite material and a preparation method thereof. The light conversion enhanced photocatalysis composite material is prepared according to the main principle that: a photocatalysis film layer is further compounded on the surface of a transparent infrared conversion core layer by adopting a physical-chemical method, the photocatalysis response spectral intensity of the photocatalysis material is remarkably enhanced by utilizing the control function of a transparent infrared conversion light film layer to the solar incident light spectrum energy distribution and an efficiency coupling energy transfer function between the transparent infrared conversion light film layer and the photocatalysis film layer, and the photon conversion efficiency and the solar utilization efficiency of the photocatalysis material are improved. The novel light conversion enhanced photocatalysis composite material has the advantages of compact structure, stable property, high photon conversion efficiency and the like, can adapt to different solar illumination conditions, can be used for fully converting and utilizing solar energy, and has potential application to the fields of direct catalysis decomposition on pure water to produce hydrogen by solar light, photocatalytic degradation to organic pollutants, organism photosynthesis and thelike.

Description

Technical field: [0001] The invention relates to a photocatalytic composite material with enhanced light conversion and a preparation method thereof, in particular to a method for enhancing the optimal spectral response intensity of photocatalytic materials by using infrared spectrum conversion and efficient coupling energy transfer, and obtaining excellent photon conversion efficiency and Novel photocatalytic composites for solar energy utilization. Background technique: [0002] In solving the global energy and environmental crisis, the use of abundant natural solar photocatalytic hydrogen production as a sustainable new energy approach is increasingly attracting the attention of the international community. Solar photocatalytic hydrogen production materials and technologies have become One of the current research hotspots and priorities in the field of new energy technology. [0003] Solar photocatalytic hydrogen production mainly includes several ways such as solar phot...

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): H01L31/0264B01J27/24B01J23/652B01J23/648C01B3/02
CPCY02P20/134Y02P20/133
Inventor 陆春华倪亚茹黄文娟丁明烨张其土许仲梓
Owner NANJING TECH UNIV
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