The study of photocatalytic activity of synthesized Ag/WO3 composite under visible light irradiation

As one of the major concern worldwide, water pollution has been brought up as top issues to focus on. Here we investigated that Ag-doped WO3 under light irradiation showed great effect in degrading organic pollutant and disinfection. In this project, after the synthesis process of WO3 and Ag/WO3, ex...

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Main Author: Li, Jing Xiong
Other Authors: Yan Xiaoli
Format: Final Year Project
Language:English
Published: 2015
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Online Access:http://hdl.handle.net/10356/63501
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-635012023-03-03T17:17:02Z The study of photocatalytic activity of synthesized Ag/WO3 composite under visible light irradiation Li, Jing Xiong Yan Xiaoli School of Civil and Environmental Engineering Environmental Chemistry and Materials Group Nanyang Environment and Water Research Institute DRNTU::Engineering::Environmental engineering::Water treatment As one of the major concern worldwide, water pollution has been brought up as top issues to focus on. Here we investigated that Ag-doped WO3 under light irradiation showed great effect in degrading organic pollutant and disinfection. In this project, after the synthesis process of WO3 and Ag/WO3, experiments were carried out to study the photo-catalytic activity of WO3 and Ag-doped WO3 composites. By applying photo-reduction method, Ag can be anchored onto the surface of WO3 nanoplate. Subsequently, series of characterization were adopted such as Transmission electron microscopy (TEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), and UV-vis diffuse reflectance spectroscopy to study the structure and character of the target material. In the degradation experiment, Sulfanilamide (SNM) was chosen as the target pollutant. It was treated under light exposure by different samples of Ag/WO3 as well as pure WO3. The results showed that the composite material performed better in degradation under irradiation compare to pure WO3. The sample that was synthesized under the condition of 2h irradiation and 180 degree had the best performance. Also, in the test of antibacterial activity, Ag ions emitted from the metal Ag contributed to enhance the efficiency of bacteria removal by attacking the cell membrane to kill the bacteria. Bachelor of Engineering (Environmental Engineering) 2015-05-14T05:44:37Z 2015-05-14T05:44:37Z 2015 2015 Final Year Project (FYP) http://hdl.handle.net/10356/63501 en Nanyang Technological University 32 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering::Water treatment
spellingShingle DRNTU::Engineering::Environmental engineering::Water treatment
Li, Jing Xiong
The study of photocatalytic activity of synthesized Ag/WO3 composite under visible light irradiation
description As one of the major concern worldwide, water pollution has been brought up as top issues to focus on. Here we investigated that Ag-doped WO3 under light irradiation showed great effect in degrading organic pollutant and disinfection. In this project, after the synthesis process of WO3 and Ag/WO3, experiments were carried out to study the photo-catalytic activity of WO3 and Ag-doped WO3 composites. By applying photo-reduction method, Ag can be anchored onto the surface of WO3 nanoplate. Subsequently, series of characterization were adopted such as Transmission electron microscopy (TEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), and UV-vis diffuse reflectance spectroscopy to study the structure and character of the target material. In the degradation experiment, Sulfanilamide (SNM) was chosen as the target pollutant. It was treated under light exposure by different samples of Ag/WO3 as well as pure WO3. The results showed that the composite material performed better in degradation under irradiation compare to pure WO3. The sample that was synthesized under the condition of 2h irradiation and 180 degree had the best performance. Also, in the test of antibacterial activity, Ag ions emitted from the metal Ag contributed to enhance the efficiency of bacteria removal by attacking the cell membrane to kill the bacteria.
author2 Yan Xiaoli
author_facet Yan Xiaoli
Li, Jing Xiong
format Final Year Project
author Li, Jing Xiong
author_sort Li, Jing Xiong
title The study of photocatalytic activity of synthesized Ag/WO3 composite under visible light irradiation
title_short The study of photocatalytic activity of synthesized Ag/WO3 composite under visible light irradiation
title_full The study of photocatalytic activity of synthesized Ag/WO3 composite under visible light irradiation
title_fullStr The study of photocatalytic activity of synthesized Ag/WO3 composite under visible light irradiation
title_full_unstemmed The study of photocatalytic activity of synthesized Ag/WO3 composite under visible light irradiation
title_sort study of photocatalytic activity of synthesized ag/wo3 composite under visible light irradiation
publishDate 2015
url http://hdl.handle.net/10356/63501
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