Photocatalytic Degradation of Organic Pollutants in Purified Terephthalic Acid Wastewater with Activated Carbon Supported Titanium Dioxide

2009 ◽  
Author(s):  
Chen Yuefeng ◽  
Wan Hui ◽  
Han Mingjuan ◽  
Guan Guofeng
Keyword(s):  
Titanium Dioxide ◽  
Activated Carbon ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Terephthalic Acid ◽  
Purified Terephthalic Acid

Adsorption of Azo Dye Orange II by Supported TiO2: A Review

2014 ◽  
Vol 625 ◽  
pp. 770-774
Author(s):  
Nadia Riaz ◽  
Mohammad Azmi Bustam ◽  
Chong Fai Kait ◽  
Zakaria B. Man ◽  
Muhammad Saqib Khan ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Activated Carbon ◽  
Fly Ash ◽  
Organic Pollutants ◽  
Azo Dye ◽  
Porous Titanium ◽  
Orange Ii ◽  
Langmuir Adsorption ◽  
Adsorption Capacities ◽  
Metal Doped

The supported TiO2 photocatalyst has been reported for the photodegradation of different organic pollutants. These supported TiO2 photocatalysts include metal and non metal doped TiO2 photocatalysts. The photodegradation can be explained in terms of adsorption. The adsorption of the dye is an significant and obvious parameter in the photodegradation process. The photodegradation is directly related to the adsorbed quantities of the pollutant onto the surface of adsorbant. Adsorption of Orange II, an azo dye has been reported using different adsorbents like fly ash, activated carbon and porous titanium dioxide. This review presents a comparison of maximum adsorption capacities (Qm; mg.g–1) and Langmuir adsorption constant (Kads; L.mg–1) for the adsorbents reported in previous studies.

Recent developments in photocatalytic degradation of insecticides and pesticides

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Santosh Kumar Singh ◽  
Pradeep Kumar Mishra ◽  
Siddh Nath Upadhyay
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Half Life ◽  
Chemical Oxidation ◽  
Future Research ◽  
Research Groups ◽  
Permissible Limits ◽  
The Past ◽  
Recent Developments

Abstract Widespread use of pesticides in agricultural and domestic sectors and their long half-life have led to their accumulation in the environment beyond permissible limits. Advanced chemical oxidation methods including photocatalytic degradation are being widely investigated for their mineralization. Photocatalytic degradation is the most promising method for degrading pesticides as well as other organic pollutants. Titanium dioxide with or without modification has been widely used as the photocatalyst. Some research groups have also tried other photocatalysts. This review presents a critical summary of the research results reported during the past two decades as well as the scope for future research in this area.

scholarly journals Enhanced Photocatalytic Degradation of Rhodamine B Using C/Fe Co-Doped Titanium Dioxide Coated on Activated Carbon

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Thuy Le Thi Thanh ◽  
Lan Nguyen Thi ◽  
Trinh Tran Dinh ◽  
Noi Nguyen Van
Keyword(s):  
Titanium Dioxide ◽  
Activated Carbon ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Supported Catalysts ◽  
Sol Gel ◽  
Adsorption Effect ◽  
Catalytic Activities ◽  
Doped Titanium Dioxide ◽  
Co Doped

Carbon and iron co-doped titanium dioxide catalyst coated on activated carbon (Fe-C-TiO2/AC) was successfully synthesized using the sol-gel method, followed by hydrothermal treatment. Commercial activated carbon was treated by HNO3 prior to being coated by the as-synthesized catalyst. The composite was characterized by XPS, XRD, UV-Vis spectrophotometry, IR, TEM, HR-TEM, and BET. The performance of the supported catalysts was evaluated in the degradation of rhodamine B (RhB) in the solution under visible-light irradiation. The results showed that, with the appropriate amount of activated carbon, prepared Fe-C-TiO2/AC catalysts exhibited higher catalytic activities and Fe-C-TiO2/AC system showed the best performance. The photocatalytic degradation efficiency of Fe-C-TiO2/AC was enhanced due to the synergistic effect between AC (adsorption effect) and Fe-C-TiO2 (photocatalysis effect). This facilitated the photocatalytic degradation of RhB by Fe-C-TiO2.

Photocatalytic degradation of organic pollutants from wastewater using aluminium doped titanium dioxide

2019 ◽  
Vol 27 ◽  
pp. 177-184 ◽  
Author(s):  
Nathaporn Areerachakul ◽  
Singto Sakulkhaemaruethai ◽  
M.A.H. Johir ◽  
Jaya Kandasamy ◽  
S. Vigneswaran
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Doped Titanium Dioxide
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