Photocatalytic Degradation of Azo Dye (Methyl Red) In Water under Visible Light Using Ag-Ni/TiO2 Sythesized by /- - Irradiation Method

Photocatalytic Degradation of Azo Dye (Methyl Red) In Water under Visible Light Using Ag-Ni/TiO2 Sythesized by /- - Irradiation Method



Vo Thi Thu Nhu, Do QuangMinh, Nguyen Ngoc Duy, Nguyen QuocHien



Commercial TiO2 (P25) co-doped with bimetallic silver and nickel
nanoparticles (Ag-Ni/TiO2) was prepared by g-irradiation method. The
properties of Ag-Ni/TiO2 were characterized by X-Ray diffraction (XRD),
X-ray photoelectron spectroscopy (XPS), transmission electron microscopy
(TEM), scanning electron microscopy (SEM), diffuse reflectance
spectroscopy (DRS), energy dispersive X-ray spectroscopy techniques
(EDX) and surface area measurement by Brunauer-Emmett-Teller (BET)
method. The size of silver and nickel nanoparticles was determined by
TEM to be of 1-2 nm.The photo-catalytic degradation of azo dye methyl
red in the aqueous suspensions of TiO2 and Ag-Ni/TiO2 under visible
light was carried out to evaluate the photo-catalytic activity. Results
showed that Ag-Ni/TiO2 was found to enhance photo-degradation efficiency
of azo dye metyl red compared to commercial TiO2. The results showed
that Ag 3% (w/w) and Ni 1.5% (w/w) co-doped TiO2 had the highest
photoactivity among all studied samples under visible light. Thus,
g-irradiation method can be suitably applied to prepare photo-catalyst
of Ag-Ni/TiO2with highly photocatalytic activity. 



10.22161/ijeab/2.1.66



http://ijeab.com/upload_document/issue_files/66%20IJEAB-FEB-2017-33-Photocatalytic%20Degradation%20of%20Azo%20Dye%20(Methyl%20Red)%20In%20Water%20under%20Visible.pdf



http://ijeab.com/submit-paper/

Comments

Post a Comment

Popular posts from this blog

The Ecological Impacts of Light Pollution at Night-time a Mechanistic Appraisal

The Ecological Impacts of Light Pollution at Night-time a Mechanistic Appraisal Abdullahi MG, Roslan U, Kamarudin M. K. A. Artificial light at night and its negative consequences are of great interest in the fields of Ecology, Human Geography Astronomy, and Human Health. Most of the studies to date concentrated on the influences of light pollution has on our ability to view the night sky, on biodiversity, and ecosystems. Though, in recent years, with the use of new technologies sensors, which provide accurate information for determining of night lights at the area, most consideration were given for estimating artificial light at night within the urban areas. In this study, urban night lights within the cities of Nigeria was evaluated by monitoring data from the ground measurements using Sky Quality Meter (SQM-LU-DL) devices. Besides, the SQM was used at the zenith (upward direction) for maximum evaluating of artificial light at the sites. Differences in night sky bri...
Read more

Studying the tendency of citizens to participate in the protection and development of land scape in Tehran

Studying the tendency of citizens to participate in the protection and development of land scape in Tehran Shadi Maleki, Abbas Mafi, Seyedeh Mahsa Hosseini Today, as an essential part and parcel of urban landscape that they play a major role in metabolism and create a lack of serious damage to urban life. This study performed to investigate the willingness of citizens to participate in activities to protect and develop landscapeof Tehran district 4. The research was descriptive and correlation method that is used for collecting information. The statistical population consisted of district 4 of Tehran. The sample size was determined 230 by using Cochrane method. A questionnaire was used to collect data. According to the research, 63.04 percent of citizens showed participation in a high level. Among the variables investigated how citizen participation in conservation and development of landscape, effective strategies to motivate citizens to participate,the reasons for la...
Read more

Land Use Land Cover Change Detection by Using Remote Sensing Data in Akaki River Basin

Land Use Land Cover Change Detection by Using Remote Sensing Data in Akaki River Basin Adimasu Woldesenbet Worako   Land use land cover change (LULCC) is the result of the long time process of natural and anthropogenic activities that has been practiced on the land. GIS and remote sensing are the best tools that support to generate the relevant land use/cover change in the basin. This study was conducted in the Akaki River basin to detect land use land cover changes within the 30 years period (1985-2015) by using landsat imagery data acquired from the GCF. Supervised maximum likelihood algorithm classification were deployed to classify land use/cover into four prominent land use groups and data’s were processed by using ERDAS imagine 2014 and ArcGIS10.1 software. In the basin dominant LULC was agricultural land use which accounts around 56.28% and the second largest is built-up area by 31.51% and the rest, forest(11.9%) and water body(0.31%) coverage were takes t...
Read more