C
Cooper H. Langford
Researcher at Concordia University Wisconsin
Publications - 20
Citations - 412
Cooper H. Langford is an academic researcher from Concordia University Wisconsin. The author has contributed to research in topics: Photoelectrochemistry & Carboxylate. The author has an hindex of 10, co-authored 20 publications receiving 408 citations.
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Journal ArticleDOI
Spectroscopic and structural characterization of a Laurentian fulvic acid: notes on the origin of the color
TL;DR: In this article, the results of a study in which ultrafiltration fractionation in combination with UV_VIS, fluorescence, FT-IR and NMR spectroscopy was used to characterize a stoichiometrically characterized Laurentian fulvic acid are presented.
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Kinetic studies of metal ion speciation
TL;DR: In this paper, the use of kinetics of metal ion transfer from naturally occurring colloidal ligand systems to complexes with spectrophotometrically favorable ligands as a means of study of speciation of metal ions in natural systems is described.
Journal ArticleDOI
Interaction of atrazine with Laurentian humic acid
TL;DR: In this article, the binding and hydrolysis of polar herbicide atrazine on a stoichiometrically well characterized Laurentian humic acid were investigated. And the results showed that binding of atrazINE is not competitive with binding of the hydrolyisation product hydroxyatrazine, the binding capacity is reduced at higher ionic strength or by cation competition for carboxylate and the atrazines binding constant and free energy of binding can be fitted by a single value at all pH values.
Journal ArticleDOI
Interaction of atrazine with Laurentian fulvic acid: binding and hydrolysis
TL;DR: In this article, a model of binding involving hydrogen bonding and/or charge-transfer complexing to specific sites created dynamically by the conformational equilibria of the higher molecular weight polymeric fulvic acid fractions is proposed as the best accommodation of the variety of observed facts.
Patent
Composite photocatalyst for refractory waste degradation
TL;DR: A composite photocatalyst for refractory waste treatment comprising particles of a wide band gap semiconductor material selected from the group consisting of titanium oxide, cadmium sulfide, and Cadmium selenide was proposed in this article.