Journal ArticleOpen Access
A mechanistic approach of chromium (VI) adsorption onto manganese oxides and boehmite
Author Affiliations
Ahsanullah University of Science and Technology, La Trobe University, RMIT University, Japan Atomic Energy Agency, ...
Published InJournal of environmental chemical engineering
Year2019
Citations190
Abstract
The concentration of chromium (VI) in the soil is an important environmental concern due to its mobility and acute toxicity. Due to its toxicity, removal of this species is very important. The mobility of Cr(VI) is highly governed by its adsorption onto the mineral surfaces. Manganese oxides are naturally-occurring scavengers and have a significant influence on the distribution, and transport of chromate species. Thus, to understand the fate of chromate species and its removal process, it is important to study chromium (VI) adsorption. In this study, birnessite (δ-MnO2), pyrolusite (β-MnO2), hausmannite (Mn3O4), manganite (γ-MnOOH), boehmite (γ-AlOOH), and Mn-Al binary oxide was used as adsorbents to adsorb Cr(VI) over a range of solution pH and initial Cr(VI) concentrations. A combined approach…
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