Electrochemical Quantification of Lead Adsorption on TiO2 Nanoparticles. Issue 1 (8th September 2020)

• Record Type: Journal Article
• Authors: Narouei, Farideh Hosseini; Kirk, Kevin A.; Andreescu, Silvana
• Is Part Of: Electroanalysis. Volume 33:Issue 1(2021)
• Page Start: 188
• Page End: 196
• Publication Date: 2020-09-08
• Subjects: Pb adsorption -- nanoparticles -- differential pulse voltammetry -- portable electrodes; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.202060152
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: This work describes a rapid easy‐to‐use electrochemical method for quantifying lead (Pb 2+ ) adsorption on metal oxide nanoparticles (NPs), demonstrated here for titanium dioxide (TiO2 ). The method was able to quantify Pb 2+ adsorption for concentrations as low as 0.95 μM, and up to 200 μM in NP dispersions, and to differentiate ion uptake in the presence and absence of a natural organic material, humic acid (HA). The method was selective for Pb 2+ against Cu 2+, As 3+, Zn 2+, Cd 2+ and Cr 3+ ions when measured in the specific potential range from −0.4 to −0.6 V and was successfully demonstrated in water and home‐collected dust. Abstract :