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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Photodegradation of Rhodamine 6G and phenol red by nanosized TiO2 under solar irradiation
Journal of Saudi Chemical Society, Volume 15, No. 2, Year 2011
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Description
Titanium dioxide nanoparticles are used in various applications, including environmental photocatalysis, solar cells and memory devices. In this study, we present the photodegradation of Rhodamine 6G and phenol red, employing heterogeneous photocatalytic process under solar irradiation. The experiments were carried out to study the effects of various parameters (i.e. the effect of the anchoring groups on the catalyst, concentration of the n-TiO2 semiconductor). The n-TiO2 was synthesized by a sol-gel process and characterized by SEM. When samples of n-TiO2 of different sizes were encapsulated with eriochromycine dye the quantum size effect is observed in the visible region of the spectrum. The rate of degradation was estimated from the residual concentration spectrophotometrically. Phenol red showed higher degradation than Rhodamine 6G which can be attributed to its sulfonic and hydroxyl anchoring groups. The photodegradation showed pseudo-first-order kinetics. © 2010.
Authors & Co-Authors
Asiri, Abdullah M.
Saudi Arabia, Jeddah
King Abdulaziz University
Al-Amoudi, Muhammed S.
Saudi Arabia, Taif
Taif University
Al-Talhi, Tariq A.
Saudi Arabia, Taif
Taif University
Al-Talhi, Abdullah D.
Saudi Arabia, Taif
Taif University
Statistics
Citations: 84
Authors: 4
Affiliations: 2
Identifiers
Doi:
10.1016/j.jscs.2010.06.005
ISSN:
13196103