Kinetics of fulvic and humic acids photodegradation in water solutions

Tight coordination of peptides by organic anions driven by hydrogen bonding affects the fibrillation kinetics of Aβ peptides in ionic liquid/water solutions.

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Kinetics of Adsorption of Uranium from Seawater by Humic Acids

Separation Science and Technology ◽

10.1080/01496399008050348 ◽

1990 ◽

Vol 25 (5) ◽

pp. 535-546 ◽

Cited By ~ 3

Author(s):

D. Heitkamp ◽

K. Wagener

Keyword(s):

Humic Acids ◽

Kinetics Of Adsorption ◽

Kinetics Of ◽

Uranium From Seawater

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Studies on nanofiltration membrane fouling in the treatment of water solutions containing humic acids

Desalination ◽

10.1016/j.desal.2004.11.036 ◽

2005 ◽

Vol 178 (1-3) ◽

pp. 171-178 ◽

Cited By ~ 41

Author(s):

Zhi Wang ◽

Yuanyuan Zhao ◽

Jixiao Wang ◽

Shichang Wang

Keyword(s):

Humic Acids ◽

Membrane Fouling ◽

Nanofiltration Membrane ◽

Water Solutions

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Equilibrium and extraction kinetics of tannins from chestnut tree wood in water solutions

Asia-Pacific Journal of Chemical Engineering ◽

10.1002/apj.455 ◽

2010 ◽

Vol 6 (4) ◽

pp. 606-612 ◽

Cited By ~ 8

Author(s):

Claudio Capparucci ◽

Fausto Gironi ◽

Vincenzo Piemonte

Keyword(s):

Extraction Kinetics ◽

Water Solutions ◽

Tree Wood ◽

Chestnut Tree ◽

Kinetics Of

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The Electrolyte Effect upon the Kinetics of the Bromoacetate–Thiosulfate Reaction in n-Propyl Alcohol–Water Solutions.

The Journal of Physical Chemistry ◽

10.1021/j150486a010 ◽

1951 ◽

Vol 55 (3) ◽

pp. 429-439 ◽

Cited By ~ 2

Author(s):

F. G. Ciapetta ◽

H. M. Tomlinson

Keyword(s):

Propyl Alcohol ◽

Water Solutions ◽

Alcohol Water ◽

Kinetics Of

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A Phenomenological Interpretation of Two-Step Adsorption Kinetics of Humic Acids on Zeolitic Tuff

Adsorption Science & Technology ◽

10.1260/0263-6174.31.4.373 ◽

2013 ◽

Vol 31 (4) ◽

pp. 373-384 ◽

Cited By ~ 2

Author(s):

Luigi Ambrosone ◽

Silvana Canzano ◽

Pasquale Iovino ◽

Stefano Salvestrini ◽

Sante Capasso ◽

...

Keyword(s):

Humic Acids ◽

Adsorption Kinetics ◽

Zeolitic Tuff ◽

Phenomenological Interpretation ◽

Kinetics Of

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PHOTO-REDUCTION KINETICS OF MnO2 IN AQUATIC ENVIRONMENTS CONTAINING HUMIC ACIDS

Indonesian Journal of Chemistry ◽

10.22146/ijc.21645 ◽

2010 ◽

Vol 8 (1) ◽

pp. 37-41 ◽

Cited By ~ 1

Author(s):

Narsito Narsito ◽

Sri Juari Santosa ◽

Setya Lastuti

Keyword(s):

Humic Acid ◽

Aqueous Medium ◽

Humic Acids ◽

Radical Scavenger ◽

Aquatic Environments ◽

Oh Radicals ◽

Anion Complex ◽

Reduction Efficiency ◽

Internal Electron ◽

Kinetics Of

The kinetics of photo-reduction of manganese(IV) oxide, MnO2 in aqueous medium, in the presence of humic acid has been investigated, including the possibility for the involvement of such radicals in the reduction. Results showed that in aqueous medium, the efficiency of the photo-reduction of MnO2 producing a soluble ionic Mn(II) was governed strongly by an internal electron transfer within an intermediate of HA-MnO2 anion complex, resulted in the chemical adsorption of humic acid on MnO2 surface. It was observed that under solar radiation and atmosphere containing oxygen, the rate of MnO2 reduction increased considerably, by factors of about 46 and 2 respectively. Moreover, there was evidence that some radicals certainly played a role in the photo-reduction of MnO2, since radical scavenger addition significantly decreased the reduction efficiency of MnO2. In the present of an excess of propanol-2, however, which was expected to remove all OH radicals present, only about 60 % decrease in reduction efficiency were observed, suggesting that radicals other than OH radical are involved in the reduction of MnO2. It was observed further that the presence of iron(III) in MnO2 up to 1 % (w/w) did not alter the reduction efficiency of MnO2. Keywords: MnO2 kinetics, photo-reduction, aquatic, humic acids

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