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Bismuth(III) Forms Exceptionally Strong Complexes with Natural Organic Matter

Berggren Kleja, Dan and Gustafsson, Jon Petter and Kessler, Vadim and Persson, Ingmar (2022). Bismuth(III) Forms Exceptionally Strong Complexes with Natural Organic Matter. Environmental Science and Technology. 56 :5 , 3076-3084
[Research article]

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Abstract

The use of bismuth in the society has steadily increased during the last decades, both as a substitute for lead in hunting ammunition and various metallurgical applications, as well as in a range of consumer products. At the same time, the environmental behavior of bismuth is largely unknown. Here, the binding of bismuth(III) to organic soil material was investigated using extended X-ray absorption spectroscopy (EXAFS) and batch experiments. Moreover, the capacity of suwannee river fulvic acid (SRFA) to enhance the solubility of metallic bismuth was studied in a long-term (2 years) equilibration experiment. Bismuth(III) formed exceptionally strong complexes with the organic soil material, where >99% of the added bismuth(III) was bound by the solid phase, even at pH 1.2. EXAFS data suggest that bismuth(III) was bound to soil organic matter as a dimeric Bi3+ complex where one carboxylate bridges two Bi3+ ions, resulting in a unique structural stability. The strong binding to natural organic matter was verified for SRFA, dissolving 16.5 mmol Bi per gram carbon, which largely exceeds the carboxylic acid group density of this compound. Our study shows that bismuth(III) will most likely be associated with natural organic matter in soils, sediments, and waters.

Authors/Creators:Berggren Kleja, Dan and Gustafsson, Jon Petter and Kessler, Vadim and Persson, Ingmar
Title:Bismuth(III) Forms Exceptionally Strong Complexes with Natural Organic Matter
Series Name/Journal:Environmental Science and Technology
Year of publishing :2022
Volume:56
Number:5
Page range:3076-3084
Number of Pages:9
Publisher:AMER CHEMICAL SOC
ISSN:0013-936X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
Keywords:bismuth(III), metallic bismuth, fulvic acid, mor layer, EXAFS spectroscopy, dimeric bismuth(III) complex, X-ray diffraction, electron microscopy
URN:NBN:urn:nbn:se:slu:epsilon-p-116943
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116943
Additional ID:
Type of IDID
DOI10.1021/acs.est.1c06982
Web of Science (WoS)000776699100020
ID Code:27751
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment

(NL, NJ) > Department of Molecular Sciences
Deposited By: SLUpub Connector
Deposited On:11 May 2022 12:25
Metadata Last Modified:13 May 2022 22:39

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