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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
One-pot template synthesis of Ti-Al-containing mesoporous silicas and their application as potential photocatalytic degradation of chlorophenols
Applied Catalysis B: Environmental, Volume 107, No. 3-4, Year 2011
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Description
This article presents preparation, characterization and evaluation of heterogeneous Titanium based alumina mesoporous silica catalysts for the photo degradation of chlorophenols in aqueous solution. For more economic application, a series of silica, Al2O3-SiO2 and TiO2-Al2O3-SiO2 are prepared using linear alkylbenzene sulfonic acid as a novel structure directing agent. Two Ti-Al-SiO2 samples were prepared by direct synthesis using different titanium sources. The prepared samples are characterized by combination of various physicochemical techniques, such as XRD, N2 physisorption, FT-IR, UV-vis, SEM and TEM. The prepared mesoporous materials are applied in the presence of UV irradiation for photodegradation of chlorophenols as pollutants in water. The results reveal that the photodegradation process of 4-chlorophenol (4-CP) is completed within 40min, while reach 67.3% for 2-chlorophenol (2-CP) within 130min. Moreover, the titanium precursor species and the catalyst dosage (0.1-0.4g/l) affect the photocatalytic activity of prepared catalysts for 2-chlorophenol degradation. Finally, the concentration of acetate and chloride ions formed during the degradation process can also affect the activity of the prepared catalysts. © 2011 Elsevier B.V.
Authors & Co-Authors
Betiha, M. A.
Egypt, Cairo
Egyptian Petroleum Research Institute
Mahmoud, Sawsan A.
Egypt, Cairo
Egyptian Petroleum Research Institute
Menoufy, Mohammed F.
Egypt, Cairo
Egyptian Petroleum Research Institute
Al-Sabagh, Ahmed M.
Egypt, Cairo
Egyptian Petroleum Research Institute
Statistics
Citations: 42
Authors: 4
Affiliations: 1
Identifiers
Doi:
10.1016/j.apcatb.2011.07.030
ISSN:
09263373
Research Areas
Environmental