Study of Structure and Properties of Humic and Fulvic Acids. II. Study of Adsorption of Cu2+ Ions to Humic Acids Extracted from Lignite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F02%3APU29422" target="_blank" >RIV/00216305:26310/02:PU29422 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study of Structure and Properties of Humic and Fulvic Acids. II. Study of Adsorption of Cu2+ Ions to Humic Acids Extracted from Lignite

Popis výsledku v původním jazyce

Equilibrium adsorption of Cu2+ ions from their solutions by partially soluble humic acids (HA) has been studied. HA were obtained from South-Moravia lignite by means of alkaline extraction. Total acidity of HA, determined on the basis of conductometric titration, was used in mathematical description of process kinetics and equilibrium. Adsorbed amount of Cu2+ ions was calculated from their concentration decay in solution, which was measured spectrophotometrically. Multistep mechanism was proposed and ussed in description of equilibrium and kinetic data. Ideas underlying Langmuir adsorption theory were applied in this analysis. Dependence of adsorption coefficients and apparent rate constants on pH was discussed. FT-IR spectroscopy was used for characterization of the products.

Název v anglickém jazyce

Study of Structure and Properties of Humic and Fulvic Acids. II. Study of Adsorption of Cu2+ Ions to Humic Acids Extracted from Lignite

Popis výsledku anglicky

Equilibrium adsorption of Cu2+ ions from their solutions by partially soluble humic acids (HA) has been studied. HA were obtained from South-Moravia lignite by means of alkaline extraction. Total acidity of HA, determined on the basis of conductometric titration, was used in mathematical description of process kinetics and equilibrium. Adsorbed amount of Cu2+ ions was calculated from their concentration decay in solution, which was measured spectrophotometrically. Multistep mechanism was proposed and ussed in description of equilibrium and kinetic data. Ideas underlying Langmuir adsorption theory were applied in this analysis. Dependence of adsorption coefficients and apparent rate constants on pH was discussed. FT-IR spectroscopy was used for characterization of the products.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F98%2F0763" target="_blank" >GA104/98/0763: Studium transformace lignitu jako polymerního systému</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Polymer Materials

ISSN

0970-0838

e-ISSN

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Svazek periodika

19

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

287-294

Kód UT WoS článku

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EID výsledku v databázi Scopus

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