K. B. Sherrard, P. Marriott, R. Amiet
Sep 1, 1995
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0
Influential Citations
12
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Journal
Environmental science & technology
Abstract
Secondary alcohol ethoxylate (SAE) was photocatalytically degraded using a suspension of TiO 2 particles irradiated with long wavelength ultraviolet light. High starting concentrations of SAE were used (ca. 2000 mg/L), and changes in both SAE oligomer distribution and production of intermediates were monitored by using GC, GC/MS, NMR, and ESMS. Initial preferential cleavage of the ethoxyl groups over H0 . reactions with the aliphatic portions of the molecule is followed by cleavage at the secondary carbon. Relatively hydrophilic intermediates remained in solution, while the hydrophobic products adhered to the TiO 2 , causing agglomeration of the particles.