Evidence map›Paper›PMID 34797046›Full record

ArticleEnvironmental science & technology2021

From Adsorption to Precipitation of U(VI): What is the Role of pH and Natural Organic Matter?

Carmen A Velasco, Adrian J Brearley, Jorge Gonzalez-Estrella, Abdul-Mehdi S Ali, María Isabel Meza, Stephen E Cabaniss, Bruce M Thomson, Tori Z Forbes, Juan S Lezama Pacheco, José M Cerrato

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Environmental science & technology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. ACS omega · 2025
    Article
  2. Article
  3. Advanced 2D XRF imaging of uranium oxidation states using HERFD at the U MChemical communications (Cambridge, England) · 2025
    Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Carmen A VelascoDepartment of Civil, Construction and Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, United States.
Adrian J BrearleyDepartment of Earth and Planetary Sciences, MSC03 2040, University of New Mexico, Albuquerque, New Mexico 87131, United States.
Jorge Gonzalez-EstrellaSchool of Civil and Environmental Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States.ORCID 0000-0002-4873-0454
Abdul-Mehdi S AliDepartment of Earth and Planetary Sciences, MSC03 2040, University of New Mexico, Albuquerque, New Mexico 87131, United States.
María Isabel MezaDepartment of Civil, Construction and Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, United States.
Stephen E CabanissDepartment of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States.
Bruce M ThomsonDepartment of Civil, Construction and Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, United States.
Tori Z ForbesDepartment of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States.ORCID 0000-0002-5234-8127
Juan S Lezama PachecoDepartment of Earth System Science, Stanford University, Stanford, California 94305, United States.
José M CerratoDepartment of Civil, Construction and Environmental Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, United States.ORCID 0000-0002-2473-6376

Funding

UNM Metals Exposure and Toxicity Assessment on tribal Lands in the Southwest (METALS) Superfund Research ProgramP42ES025589 · NIEHS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI BOLT, ALICIA M. · 2017 to 2025
$16.4M
Rapid Uranium Sensors to Minimize Health Impacts in the Navajo NationR01ES027145 · NIEHS · UNIVERSITY OF IOWA · PI CERRATO, JOSE MANUEL, CWIERTNY, DAVID MICHAEL · 2017 to 2020
$1.3M
NIEHS NIH HHS P42 ES025589NIEHS NIH HHS R01 ES027145
6 · The paper itself

Abstract

We investigated interfacial reactions of U(VI) in the presence of Suwannee River natural organic matter (NOM) at acidic and neutral pH. Laboratory batch experiments show that the adsorption and precipitation of U(VI) in the presence of NOM occur at pH 2 and pH 4, while the aqueous complexation of U by dissolved organic matter is favored at pH 7, preventing its precipitation. Spectroscopic analyses indicate that U(VI) is mainly adsorbed to the particulate organic matter at pH 4. However, U(VI)-bearing ultrafine to nanocrystalline solids were identified at pH 4 by electron microscopy. This study shows the promotion of U(VI) precipitation by NOM at low pH which may be relevant to the formation of mineralized deposits, radioactive waste repositories, wetlands, and other U- and organic-rich environmental systems.

Indexed as

Radioactive WasteUraniumAdsorptionDissolved Organic MatterHydrogen-Ion ConcentrationDissolved Organic MatterRadioactive WasteUraniumcomplexationhumatemicroscopynatural organic matterprecipitationspectroscopyuranium

Identifiers

PMID34797046
PMCPMC8680647

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.