Interaction of soil humic acids with gold ions and pathfinder elements

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Interaction of soil humic acids with gold ions and pathfinder elements. / Korshunova, V. A.; Lodygin, E. D.; Charykova, M. V.; Chukov, S. N.

In: IOP Conference Series: Earth and Environmental Science , Vol. 862, No. 1, 012022, 18.10.2021.

Research output: Contribution to journal › Conference article › peer-review

BibTeX

@article{a5d036c7f51841f0b6a52a746119c8a9,

title = "Interaction of soil humic acids with gold ions and pathfinder elements",

abstract = "The study aims at experimental modeling of interaction of gold, arsenic, copper and lead ions with humic acids. The relevance and choice of the research objects are attributed to the poor coverage of characteristics of the mentioned ions with regard to their sorption interaction with humic acids. Arsenic, copper and lead are, on the one hand, common pollutants accumulated in soils exposed to anthropogenic impact and, on the other hand, are pathfinder elements for gold, which serve as indicators of gold mineralization in geochemical prospecting in secondary halos. The experiment has been carried out with the solution concentration ranging from 5 to 100 µg/cm3 at the temperature of 298 K. The adsorption isotherms obtained experimentally are described through the empirical Freundlich adsorption isotherm equation and the Langmuir adsorption model. A model experiment has been conducted on the effect of iron (III) ions on gold ion sorption, which is essential for determining the forms of gold in loose deposits in the presence of iron oxides and hydroxides. It has been shown that an increase in the iron concentration has practically no effect on the amount of sorbed gold ions in the concentration range under study.",

author = "Korshunova, {V. A.} and Lodygin, {E. D.} and Charykova, {M. V.} and Chukov, {S. N.}",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 8th Congress of the Dokuchaev Soil Science Society ; Conference date: 19-07-2021 Through 24-07-2021",

year = "2021",

month = oct,

day = "18",

doi = "10.1088/1755-1315/862/1/012022",

language = "English",

volume = "862",

journal = "IOP Conference Series: Earth and Environmental Science",

issn = "1755-1307",

publisher = "IOP Publishing Ltd.",

number = "1",

url = "http://The VIII Congress of the Dokuchaev Soil Science Society / IOP Conf. Series: Earth and Environmental Science. 2021. V. 862. 012107.",

}

RIS

TY - JOUR

T1 - Interaction of soil humic acids with gold ions and pathfinder elements

AU - Korshunova, V. A.

AU - Lodygin, E. D.

AU - Charykova, M. V.

AU - Chukov, S. N.

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2021/10/18

Y1 - 2021/10/18

N2 - The study aims at experimental modeling of interaction of gold, arsenic, copper and lead ions with humic acids. The relevance and choice of the research objects are attributed to the poor coverage of characteristics of the mentioned ions with regard to their sorption interaction with humic acids. Arsenic, copper and lead are, on the one hand, common pollutants accumulated in soils exposed to anthropogenic impact and, on the other hand, are pathfinder elements for gold, which serve as indicators of gold mineralization in geochemical prospecting in secondary halos. The experiment has been carried out with the solution concentration ranging from 5 to 100 µg/cm3 at the temperature of 298 K. The adsorption isotherms obtained experimentally are described through the empirical Freundlich adsorption isotherm equation and the Langmuir adsorption model. A model experiment has been conducted on the effect of iron (III) ions on gold ion sorption, which is essential for determining the forms of gold in loose deposits in the presence of iron oxides and hydroxides. It has been shown that an increase in the iron concentration has practically no effect on the amount of sorbed gold ions in the concentration range under study.

AB - The study aims at experimental modeling of interaction of gold, arsenic, copper and lead ions with humic acids. The relevance and choice of the research objects are attributed to the poor coverage of characteristics of the mentioned ions with regard to their sorption interaction with humic acids. Arsenic, copper and lead are, on the one hand, common pollutants accumulated in soils exposed to anthropogenic impact and, on the other hand, are pathfinder elements for gold, which serve as indicators of gold mineralization in geochemical prospecting in secondary halos. The experiment has been carried out with the solution concentration ranging from 5 to 100 µg/cm3 at the temperature of 298 K. The adsorption isotherms obtained experimentally are described through the empirical Freundlich adsorption isotherm equation and the Langmuir adsorption model. A model experiment has been conducted on the effect of iron (III) ions on gold ion sorption, which is essential for determining the forms of gold in loose deposits in the presence of iron oxides and hydroxides. It has been shown that an increase in the iron concentration has practically no effect on the amount of sorbed gold ions in the concentration range under study.

UR - http://www.scopus.com/inward/record.url?scp=85118452865&partnerID=8YFLogxK

U2 - 10.1088/1755-1315/862/1/012022

DO - 10.1088/1755-1315/862/1/012022

M3 - Conference article

AN - SCOPUS:85118452865

VL - 862

JO - IOP Conference Series: Earth and Environmental Science

JF - IOP Conference Series: Earth and Environmental Science

SN - 1755-1307

IS - 1

M1 - 012022

T2 - 8th Congress of the Dokuchaev Soil Science Society

Y2 - 19 July 2021 through 24 July 2021

ER -

ID: 88807997