Zheming Wang | Environmental Molecular Sciences Laboratory

AI-enabled processing of multimodal data to expand 2D chemical information to 3D space

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Maruti K. Mudunuru

This project will develop a user-friendly workflow to process EMSL’s multi-modal data using AI segmentation algorithms in Fiji software (already available on EMSL OnDemand). This multi-modal data…

The role of biopolymers in controlling mineral nucleation pathways and aggregation kinetics

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James De Yoreo

Biopolymers are one of the most important regulators in controlling crystallization processes. They guide nucleation and growth by binding ions and/or templating mineral interfaces and alter particle…

Understanding Particle Generation and the Risk of Occupational Exposure and Environmental Release of Nanoparticles During Processing of Nanocomposite Materials

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Daniel Gaspar

Project type

Exploratory Research

Understanding the potential impacts of nanotechnology on human health and the environment requires an understanding of the potential for release and exposure of potentially toxic nanomaterials during…

Experimental Capabilities and Fundamental Science for Geologic Carbon Sequestration: The PNNL In Situ Supercritical Suite (IS3)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for investigators in the In Situ Supercritical Suite (IS3) component of PNNL's Carbon Sequestration Initiative (CSI). The CSI is a multi-million…

Experimental Capabilities and Fundamental Science for Geologic Carbon Sequestration: The PNNL In Situ Supercritical Suite (IS3)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Loring

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for investigators in the In Situ Supercritical Suite (IS3) component of PNNL's Carbon Sequestration Initiative (CSI). The CSI is a multi-million…

The Transformation of Tetrahedral to Octahedral Coordination in Anions of Interest in High-Level Tank Waste

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jian-zhi Hu

Project type

Exploratory Research

We propose to use nuclear magnetic resonance (NMR), Raman and Fourier transform-infrared (FT-IR) spectroscopy in combination with computational modeling to study the conversion of soluble tetrahedral…

Structure and Catalytic Activity of Supported Early Transition Metal Oxide Clusters (Kay's BES/Chemical Physics-Catalysis WBS0502 of Peden's BES-Chemical Transformations at Complex Interfaces, PNNL Scope #47319)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zdenek Dohnalek

Project type

Exploratory Research

Current commercial heterogeneous catalysts are structurally and chemically complex and measurements on them can seldom be interpreted with atomic-level precision. This is especially so for supported…

The Role of Interfacial Processes on Mineral Transformations in Wet Supercritical CO2

Lead Institution

Washington State University

Principal Investigator

Andrew Felmy

Project type

Large-Scale EMSL Research

We propose a comprehensive experimental and theoretical investigation of the role of interfacial water and CO2 on the energies, mechanisms, and rates of reactivity of a series of orthosilicate and…

In Situ Measurement of Organic Contaminants in CO2-Water Solutions Using Near-Infrared Spectroscopy

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Christopher Thompson

Geologic carbon sequestration (GCS) is considered to be one of the more viable options for reducing anthropogenic emissions of greenhouse gases. At sites where depleted oil reservoirs or coal beds…

Structure and Chemistry at the Buried Solid/Aqueous Solution Interfaces with Advanced Surface Nonlinear Spectroscopy

Lead Institution

Fudan University

Principal Investigator

Hongfei Wang

Solid/aqueous solution interface are ubiquitous and important in energy and environmental research. We propose to investigate benchmark systems in the interface sciences to find novel applications of…

photo-luminescence of nano-oxides

Lead Institution

Motorola

Principal Investigator

Yong Liang

Project type

Exploratory Research

to determine the photo-luminescence property and the lifetime of photo-excited electrons and holes. Need to conduct PL measurements (both regular and time-resolved) on SrTiO3 and Cu2O samples.

A Joint Experimental and Computational Investigations of U(VI) Excited States in Uranyl Compounds Relevant to U(VI) Remediation At DOE Sites

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zheming Wang

Project type

Large-Scale EMSL Research

Actinides widely exist in natural resources such as mines, atmosphere, and underground water, and in man-made radioactive nuclear wastes from nuclear power plants and weapons production. Particularly…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

Fundamental Understanding of Nucleation Processes to Assess Solution Stability and Phase Growth and Genesis

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Gregg Lumetta

Many activities in the nuclear industry are areas of concern for public safety. The leakage of nuclear waste from Hanford storage tanks poses a threat to public health, and the retrieval and…

Influence of Speciation on the Transport of U(VI) through Hanford Sediments

Lead Institution

Oak Ridge National Laboratory

Principal Investigator

Melanie Mayes

Project type

Exploratory Research

Uranium(VI) in the subsurface at the Department of Energy's (DOE) Hanford site poses a significant risk to the quality of the Columbia River and to future populations. Coupled hydrological and…

Role of Microenvironments and Transition Zones in Field scale microbial ecology and biogeochemistry

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Exploratory Research

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

in Operando Characterization of Contact Catalysts at Mesoscale Distances

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Robert Weber

We propose to measure and model the dipole-dipole interactions that shift and quench luminescence spectra of ligand-to-metal charge transfer bands of contact catalysts containing transition metal in…

The Transformation of Tetrahedral to Octahedral Coordination in Anions of Interest in High-Level Tank Waste

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jian-zhi Hu

Project type

Large-Scale EMSL Research

We propose to use nuclear magnetic resonance (NMR), Raman and Fourier transform-infrared (FT-IR) spectroscopy in combination with computational modeling to study the conversion of soluble tetrahedral…

Chemically-selective Sensor Film Characterization

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zheming Wang

Project type

Exploratory Research

A new film material comprised of quaternized poly(4-vinylpyridine) cross-linked with 1,10-diiododecane (herein QPVP) has been developed for possible use in the spectroelectrochemical sensor for…

Development of Single Molecule Force Microscopy Capability to Examine the Moleuclar Mechanism of Lignocellulosic Material Degradation

Lead Institution

The Ohio State University

Principal Investigator

Brian Lower

Project type

Large-Scale EMSL Research

The objective of this proposal is to develop a novel capability based on scanning probe microscopy to examine the enzyme-catalyzed hydrolysis of insoluble lignocellulosic material at the molecular…

Role of Microenvironments and Transition Zones in Field Scale Microbial Ecology and Biogeochemistry

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

Project type

Limited Scope

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

The Role of Interfacial Water on Mineral Transformations in Wet Supercritical CO2

Lead Institution

Washington State University

Principal Investigator

Andrew Felmy

Project type

Large-Scale EMSL Research

We propose a comprehensive experimental and theoretical investigation of the molecular mechanisms governing the role of interfacial water in the reactivity of mineral phases in supercritical carbon…

Can Mineral Growth by Oriented Attachment Lead to Incorporation of Uranium into the Structure of Fe(oxyhydr)oxides?

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Eugene Ilton

Project type

Large-Scale EMSL Research

Previous laboratory work has shown that uranium can be incorporated into the structure of hematite and goethite during co-precipitation and redox transformation of ferrihydrite, respectively. However…

Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone (PNNL Scope # 30948 Bryan/Hubler EMSP)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Samuel Bryan

Project type

Exploratory Research

The general aim of this project is to continue the design and implementation of a new sensor technology that offers the unprecedented levels of specificity needed for analysis of the complex chemical…

Coupled Hydrological and Geochemical Studies on Uranium Plumes at Hanford Site: Reactions, Spatial Distributions, Speciation, and Future Mobility

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zheming Wang

Project type

Large-Scale EMSL Research

Massive quantities (exceeding 85 tons) of U currently reside in the Hanford vadose zone, and will threaten groundwater and the accessible environment for generations to come. Present insufficient…

Microstructures and Their Stability of Ion-implanted Energy and Storage Materials

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Weilin Jiang

Project type

Large-Scale EMSL Research

Two parallel studies, respectively funded by Office of Basic Energy Sciences and Office of Nuclear Energy, U.S. Department of Energy, will be performed under this user proposal. The objectives of the…

A Joint Experimental and Theoretical Study of the Bonding, Energetics, and Excited States of Uranyl Compounds

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zheming Wang

Project type

Large-Scale EMSL Research

One of the challenges in experimental investigations of actinide complexes is to determine their structures, bonding, and stabilities in solids and solutions. Our recent TRLIF work on U(VI), the…

Visualizing Uranium Atom Exchange in UO2 Driven by Biogeochemical Processes

Lead Institution

Washington University in St. Louis

Principal Investigator

Daniel Giammar

Project type

Large-Scale EMSL Research

Redox-driven recrystallization of metal oxides is an exciting environmental phenomenon that can influence biogeochemical cycles of both nutrients and contaminants. This phenomena occurs in systems…

Nanotube probes of Rough Surfaces and their chemical reactions

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zheming Wang

Project type

Exploratory Research

Microscale and spectroscopic investigations in geochemical and microbiological systems

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

Project type

Large-Scale EMSL Research

Apply experimental manipulation and field investigations to understanding the behavior of selected chemical and microbial components in natural systems. The research is targeted towards compounds…

Chemical Speciation of Americium, Curium, and Selected Tetravalent Actinides in High Level Waste (Felmy EMSP-tank, PNNL Scope #26753)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Herman Cho

Project type

Exploratory Research

Develop fundamental data on chemical speciation and solubility for Americium, Curium, and Selected Tetravalent Actinides in High Level Waste Work authorization text added 08/11/05: The objective…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

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…

Characterization of Pure and Doped ZnO Nanoclusters

Lead Institution

University of Idaho

Principal Investigator

JiJi Antony

Project type

Exploratory Research

ZnO is a wide-band gap semiconductor (3.3 eV) that has attracted tremendous interest as blue light emitting spintronic material. ZnO particles when doped with transition metals can develop properties…

Advances in Understanding Electron Transfer Kinetics at Environmental Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This EMSL user proposal requests a continuation of EMSL access for a BER funded Environmental Molecular Sciences Institute (EMSI) project led by Dr. Rosso at PNNL. This project constitutes the PNNL…

Influence of Reactive Transport on the Reduction of U(VI) in the Presence of Fe(III) and Nitrate (Liu NABIR-Fe/U, PNNL Scope #42331)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Chongxuan Liu

Project type

Exploratory Research

To examine in sediment-containing experimental systems (packed columns) the reduction of U(VI) by metal-reducing bacteria in a simulated groundwater medium. Work authorization text added 08/11/05:…

Probing Particle Mediated Growth: Towards a Predictive Understanding of Self-Assembly for Energy Applications

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This Science Theme proposal aims at developing a fundamental understanding of forces between nanoparticles in aqueous solution that underpin self-assembly of materials by oriented aggregation. This…

Unraveling chemical speciation and interfacial dynamics in complex, heterogeneous
environments to efficiently process high-level radioactive wastes

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Jian-zhi Hu

We propose to use NMR in combination with computational modeling, to study the conversion of soluble tetrahedral aluminum (Al) species to octahedrally coordinated Al-bearing mineral precipitates…

Scintillator research (PNNL Scope #30932: Ambient Temperature Radiation Detectors)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mary Bliss

Project type

Exploratory Research

Characterize new scintilaltors for use in radiation detection.

Photo-luminescent Properties of Quantum Dots and Dye Molecules Imbedded in Ceramic and Polymer Materials

Lead Institution

Motorola

Principal Investigator

Yong Liang

Project type

Limited Scope

We propose to investigate the optical properties of quantum dots and dye molecules imbedded in organic and inorganic materials using the photo- absorption and luminescence spectroscopy techniques…

Coupling of Fe and Tc Speciation in Subsurface Sediments: Implications to Long-Term Tc Immobilization (Zachara NABIR-Fe/Tc, PNNL Scope # 40761)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

Project type

Exploratory Research

Creating an in-situ bio-barrier containing sediment-bound, biogenic FE(II) to reduce and collect mobile Tc(VII)O4 - The research objective is to provide scientific insights on the rates of reductive…

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL.PNNL Scientific Focus Area. The PNNL SFA will develop a predictive understanding…

Understanding Mechanisms Coupling the Fates of Iron Oxides, Organic Matter, and Micronutrient Metals at Redox Hot Spots

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

Iron (oxyhydr)oxide minerals are ubiquitous in soils and sediments and play an commanding role in nutrient cycling, microbial metabolism, carbon protection, and contaminant immobilization. Among them…

Establish a Penn State Center for Environmental Kinetics - as part of the Environmental Molecular Science Institute (EMSI) program (NSF/DOE-OBER) [PNNL Scope #47287, Zachara EMSI)

Lead Institution

Pennsylvania State University

Principal Investigator

William Burgos

Project type

Exploratory Research

The National Science Foundation has awarded a team of Penn State researchers $6.7 million to establish a new center for the study of environmental kinetics. Susan L. Brantley, director of the…

Linking Microscopic to Macroscopic Adsorption/Desorption Behavior for Uranium on Environmental Materials

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

This Science Theme proposal requests EMSL access for a subtask on an existing funded project at PNNL. The task is focused on determination of molecular-scale adsorption, desorption, and…

Characterization of U(VI) Sorption-Desorption Processes and Model Upscaling (Zachara, EMSP-U, PNNL Scope #43914)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

Project type

Exploratory Research

Develop experimental data, process-level models, and up-scaling approaches to improve capabilities to model U(VI) transport in heterogeneous vadose zone and groundwater plumes.

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL.PNNL Scientific Focus Area. The PNNL SFA will develop a predictive understanding…

The Kinetics of Direct Enzymatic Reduction of Uranium (VI): Effects of Ligand Complexation and U(VI) Speciation (Ainsworth NABIR, PNNL Scope # 42335)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Calvin Ainsworth

Project type

Exploratory Research

Experimental studies of U(VI) reduction by AH2DS have shown that the aqueous uranyl ion and its hydrolysis products are reduced at significantly slower rates compared with Fe(III). While reduction…

Thrust 4: Model Hematite Thin Films and Bacterial Iron Reduction (LDRD: Cytochrome and Whole Cell Interactions with Iron Oxides)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Timothy Droubay

Project type

Grand Challenge

This LDRD project is the fourth one associated with the Biogeochemistry Grand Challenge (BGC). Its overall goal is to develop new capabilities and materials as needed to understand the molecular…

Microscopic Mass Transfer on U(VI) and Tc(VIII) in Subsurface sediments

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Chongxuan Liu

Project type

Limited Scope

This project will investigate microscopic mass transfer process and its influence on and coupling with geochemical and biogeochemical reactions in subsurface sediments. The research will focus on…

Projects