Xiaopeng Huang

Mechanisms of Fe(II)-Catalyzed Transformation of Fe(III)-(Oxyhydr)oxides

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

Interaction of aqueous Fe(II) with major Fe(III)-oxides and oxyhydroxides yields the enigmatic catalytically reactive "sorbed Fe(II)" species and apparent facile recrystallization of even…

Unraveling Mechanisms of Complex Associations of Organic Carbon with Iron Oxide Minerals during Redox Transformations

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Exploratory Research

Fe(III)-oxide nanominerals are ubiquitous primary sorbents of organic carbon, organic acid exudates, and toxic metals in terrestrial, aquatic, and subsurface ecosystems. In soil ecosystems,…

Unraveling Redox Transformation Mechanisms of Ferrihydrite and Micronutrient Metal Incorporation at the Molecular Scale

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

Understanding aquatic chemistry, the natural cycling and fractionation of elements, and energy flow in soils almost always involves, by necessity, attention to the governing influence of electron…

Solar Photolysis of Dissolved Organic Matter in the Presence of Iron Oxide Nanoparticles

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Limited Scope

We propose to conduct the photodegradation on two dissolved organic matter (DOM) samples in the presence of hematite nanoparticles under solar light for the first time. This treatment will produce…

EMSL Science Overview

Xiaopeng Huang

Projects

Mechanisms of Fe(II)-Catalyzed Transformation of Fe(III)-(Oxyhydr)oxides

Unraveling Mechanisms of Complex Associations of Organic Carbon with Iron Oxide Minerals during Redox Transformations

Unraveling Redox Transformation Mechanisms of Ferrihydrite and Micronutrient Metal Incorporation at the Molecular Scale

Solar Photolysis of Dissolved Organic Matter in the Presence of Iron Oxide Nanoparticles