Voltammetric, dynamic light scattering (DLS) and electrophoretic mobility characterization of FeS nanoparticles (NPs) in different electrolyte solutions

Marguš, Marija; Milanović, Ivana; Ciglenečki-Jušić, Irena (2016) Voltammetric, dynamic light scattering (DLS) and electrophoretic mobility characterization of FeS nanoparticles (NPs) in different electrolyte solutions. Journal of Solid State Electrochemistry, 20 (11). pp. 2981-2989. ISSN 1432-8488

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Abstract

Voltammetric response of FeS nanoparticles (NPs) dispersion based on the oxidation exchange voltammetric peak between Hg electrode and FeS NPs at around−0.45 V was studied in different electrolytes (chloride, acetate, perchlorate). Several experiments were designed to monitor in parallel to voltammetric measurements, physicochemical and surface characteristics of the formed FeS NPs (ζ- potential and size) under same experimental conditions. It was shown that recorded voltammetric peak produced by FeS NPs from bulk solution is changing with electrolyte concentration and composition, as well as observed size and ζ-potential of the studied FeS NPs. Our measurements indicate relationship between measured ζ-potential of FeS NPs dispersions and recorded voltametric peak charge and potential, pointing to a promising potential of voltammetry in characterization of physicochemical and surface chemistry features of metal sulphide NPs in water environment. The best voltammetric response is obtained in presence of small NPs, <100 nm.

Item Type:	Article
Uncontrolled Keywords:	volatmmetry ; FeS nanoparticles ; DLS ; ionic strength conditions ; nanoparticle size ranges ; ζ-potential
Subjects:	NATURAL SCIENCES > Interdisciplinary Natural Sciences > Marine Science NATURAL SCIENCES > Interdisciplinary Natural Sciences > Environmental Science
Divisions:	Division for Marine and Enviromental Research
Projects:	Project title Project leader Project code Project type Nanoparticles in aqueous environment: electrochemical, nanogravimetric, STM and AFM studies Irena Ciglenečki-Jušić 62/10 UKF grant The Sulphur and Carbon Dynamics in the Sea- and Fresh-water Environment (SPHERE) Irena Ciglenečki-Jušić IP-11-2013-1205 HRZZ
Depositing User:	Marija Marguš
Date Deposited:	21 Nov 2017 15:59
URI:	http://fulir.irb.hr/id/eprint/3678
DOI:	10.1007/s10008-016-3354-9

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