نمایش مختصر رکورد

dc.contributor.authorKargar Razi, M.en_US
dc.contributor.authorKhosravi, M.en_US
dc.contributor.authorSarraf Mamoory, R.en_US
dc.contributor.authorMohammadi, M.en_US
dc.date.accessioned1399-07-08T20:04:11Zfa_IR
dc.date.accessioned2020-09-29T20:04:11Z
dc.date.available1399-07-08T20:04:11Zfa_IR
dc.date.available2020-09-29T20:04:11Z
dc.date.issued2010-07-01en_US
dc.date.issued1389-04-10fa_IR
dc.date.submitted2010-04-20en_US
dc.date.submitted1389-01-31fa_IR
dc.identifier.citationKargar Razi, M., Khosravi, M., Sarraf Mamoory, R., Mohammadi, M.. (2010). Preparation of nano gold powder from acid leaching tail solution. International Journal of Nano Dimension, 1(1), 47-55. doi: 10.7508/ijnd.2010.0x.005en_US
dc.identifier.issn2008-8868
dc.identifier.issn2228-5059
dc.identifier.urihttps://dx.doi.org/10.7508/ijnd.2010.0x.005
dc.identifier.urihttp://www.ijnd.ir/article_632516.html
dc.identifier.urihttps://iranjournals.nlai.ir/handle/123456789/80506
dc.description.abstractAccording to the unique properties and many applications of nano gold powder, it was prepared from an acid leaching tail solution. The low value residual gold ions existed in acid leaching tail solution in Mouteh gold mine in Iran with fellow heavy metals as pollutants (Fe2+, Cu2+, and Zn2+). Preparation of nano gold particles is achieved by two steps: First, by addition of ammonia as separation step and second by using the suitable reagents for precipitation and extraction step. Control conditions include pH, residence time, temperature, agitation, molar ratio of reducing agents to reagents. The optimum results show that nano gold powder was prepared by temperature of 250 °C, urea to gold molar ratio of 3:1, and reduction time of 20 min. Also, heat treatment improves dispersion of nano sized gold particles. The properties of gold nano powders were evaluated by SEM, A.A and UV-Vis spectroscopy methods and the size of particles were about 80 to 90 nm.en_US
dc.format.extent518
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoen_US
dc.publisherIslamic Azad University-Tonekabon Branchen_US
dc.relation.ispartofInternational Journal of Nano Dimensionen_US
dc.relation.isversionofhttps://dx.doi.org/10.7508/ijnd.2010.0x.005
dc.subjectNano gold powderen_US
dc.subjectleaching tailen_US
dc.subjectureaen_US
dc.subjectPrecipitationen_US
dc.titlePreparation of nano gold powder from acid leaching tail solutionen_US
dc.typeTexten_US
dc.typeReasearch Paperen_US
dc.contributor.departmentIslamic Azad University, North Tehran Branch, Iran.en_US
dc.contributor.departmentIslamic Azad University, North Tehran Branch, Tehran,Iran.en_US
dc.contributor.departmentTarbiat Modares University, Tehran, Iran.en_US
dc.contributor.departmentMouteh Gold Complex, Iran.en_US
dc.citation.volume1
dc.citation.issue1
dc.citation.spage47
dc.citation.epage55


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