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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Titanium dioxide mediated photo-degradation of methyl orange by ultraviolet light
Toxicological and Environmental Chemistry, Volume 95, No. 4, Year 2013
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Description
The photo-degradation of an aqueous solution containing the azo dye methyl orange (MO) is reported. Disappearance of color and substrate together with decreases in chemical oxygen demand (COD) and total organic carbon (TOC) content were observed. The effects of some auxiliary dyeing additives were also evaluated. The photo-decomposition followed pseudo-first-order kinetics. Some by-products and their photo-degradation pathways were identified. In addition, the toxicity and phytotoxicity of some by-products were tested using the earthworm (Eisenia andrei) avoidance test and the Bromus ramosus seed germination test. High sensitivity of E. andrei towards soil wetted with MO solution was observed, and germination of B. ramosus seeds was inhibited by MO solution, while no effects were seen for the same solution after photocatalytic oxidation. © 2013 Copyright Taylor and Francis Group, LLC.
Authors & Co-Authors
Trabelsi, Hassen
Tunisia, Sfax
Ecole Nationale D'ingénieurs de Sfax
Khadhraoui, Moncef
Tunisia, Sfax
Ecole Nationale D'ingénieurs de Sfax
Tunisia, Sfax
Higher Institute of Biotechnology of Sfax Isbs
Hentati, Olfa
Tunisia, Sfax
Ecole Nationale D'ingénieurs de Sfax
Tunisia, Sfax
Higher Institute of Biotechnology of Sfax Isbs
Ksibi, Mohamed
Tunisia, Sfax
Ecole Nationale D'ingénieurs de Sfax
Tunisia, Sfax
Higher Institute of Biotechnology of Sfax Isbs
Statistics
Citations: 23
Authors: 4
Affiliations: 2
Identifiers
Doi:
10.1080/02772248.2013.802793
ISSN:
02772248
e-ISSN:
10290486
Research Areas
Environmental