Arşiv ve Dokümantasyon Merkezi
Dijital Arşivi

Evaluation of natural organic matter-metal oxide adsorption isotherms under influential structural concepts

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dc.contributor Ph.D. Program in Environmental Sciences.
dc.contributor.advisor Bekbölet, Miray.
dc.contributor.author Süphandağ, Şerif Altan.
dc.date.accessioned 2023-03-16T13:41:10Z
dc.date.available 2023-03-16T13:41:10Z
dc.date.issued 2006.
dc.identifier.other ESC 2006 S87 PhD
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/19403
dc.description.abstract The adsorption of molecules onto a surface is a necessary prerequisite to any surface mediated chemical process. Therefore, the mechanism of binding of humic acids to TiO2 surface has to be addressed in order to improve the understanding of photocatalytic degradation. From the fundamental point of view, natural organic matter (NOM) for water scientists can be perceived as very complex entities both in terms of chemistry and comprehension. Especially the fulvic (FA) and humic acids (HA), the soluble portions of NOM, are often considered as oligomeric and polymeric materials. In literature, there are ongoing discussions regarding the high molecular mass is due to aggregation of small units, as in micelles, or due to covalently bound units, as in polymers. The essence of this thesis is to evaluate the adsorption under the light of these two debatable approaches and bring reasonable interpretations of the observed isotherm patterns through the use of proposed structures. In this dissertation the isotherms of humic acid (HA) on titanium dioxide are analyzed at acidic, neutral, and basic pH. Combined effects of pH and increasing ionic strength were evaluated in order to asses the effect of changing solution matrix on the molecular structure of humic acid.|Keywords: humic acid, titanium dioxide, adsorption, natural organic matter, metal oxides
dc.format.extent 30cm.
dc.publisher Thesis (Ph.D.)-Bogazici University. Institute of Environmental Sciences, 2006.
dc.subject.lcsh Humic acid.
dc.subject.lcsh Titanium dioxide.
dc.subject.lcsh Adsorption.
dc.subject.lcsh Organic water pollutants.
dc.subject.lcsh Water -- Purification -- Organic compounds removal.
dc.title Evaluation of natural organic matter-metal oxide adsorption isotherms under influential structural concepts
dc.format.pages xii, 100 leaves;


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