fulltext.study @t Gmail

Silver doped titanium dioxide nanomaterials for enhanced visible light photocatalysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
29273 44143 2007 6 PDF Available
Title
Silver doped titanium dioxide nanomaterials for enhanced visible light photocatalysis
Abstract

This paper presents a systematic study on two different preparation methods for titanium dioxide with silver. The silver can be incorporated by irradiating the reaction mixture during preparation to reduce silver ion to silver metal or by direct calcination of the sol–gel material to decompose silver nitrate to silver. Of the two methods, we found the latter produces a more effective photocatalytic material (6–50% improvement in catalytic efficiency), which is attributed to the fact that the silver is homogeneously dispersed throughout the material. The efficiency of the materials were examined using a Q-Sun solar simulator (visible light) and in Dublin summer sunlight (latitude 54°N). In both cases, the addition of increasing amounts of silver, for both batches of samples, significantly increases the rate of degradation of a model dye, rhodamine 6G (R6G), increasing the rate of degradation from 0.06 min−1 for TiO2 to 0.34 min−1 for 5 mol% Ag–TiO2. This is attributed to the increasing visible absorption capacity due to the presence of silver nanoparticles.

Keywords
Titanium dioxide; Silver; Visible light; Photocatalsysis
First Page Preview
Silver doped titanium dioxide nanomaterials for enhanced visible light photocatalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 189, Issues 2–3, 25 June 2007, Pages 258–263
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us