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Shi M, Li Q, Wang Q, Yan X, Li B, Feng L, Wu C, Qiu R, Zhang H, Yang Z, Yang W, Liao Q, Chai L. A review on the transformation of birnessite in the environment: Implication for the stabilization of heavy metals. J Environ Sci (China) 2024; 139:496-515. [PMID: 38105072 DOI: 10.1016/j.jes.2023.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/12/2023] [Accepted: 06/12/2023] [Indexed: 12/19/2023]
Abstract
Birnessite is ubiquitous in the natural environment where heavy metals are retained and easily transformed. The surface properties and structure of birnessite change with the changes in external environmental conditions, which also affects the fate of heavy metals. Clarifying the effect and mechanism of the birnessite phase transition process on heavy metals is the key to taking effective measures to prevent and control heavy metal pollution. Therefore, the four transformation pathways of birnessite are summarized first in this review. Second, the relationship between transformation pathways and environmental conditions is proposed. These relevant environmental conditions include abiotic (e.g., co-existing ions, pH, oxygen pressure, temperature, electric field, light, aging, pressure) and biotic factors (e.g., microorganisms, biomolecules). The phase transformation is achieved by the key intermediate of Mn(III) through interlayer-condensation, folding, neutralization-disproportionation, and dissolution-recrystallization mechanisms. The AOS (average oxidation state) of Mn and interlayer spacing are closely correlated with the phase transformation of birnessite. Last but not least, the mechanisms of heavy metals immobilization in the transformation process of birnessite are summed up. They involve isomorphous substitution, redox, complexation, hydration/dehydration, etc. The transformation of birnessite and its implication on heavy metals will be helpful for understanding and predicting the behavior of heavy metals and the crucial phase of manganese oxides/hydroxides in natural and engineered environments.
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Affiliation(s)
- Miao Shi
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Qingzhu Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; National Engineering Research Centre for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410083, China.
| | - Qingwei Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; National Engineering Research Centre for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410083, China.
| | - Xuelei Yan
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Bensheng Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Linhai Feng
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Chao Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Rongrong Qiu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Hongkai Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zhihui Yang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; National Engineering Research Centre for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410083, China
| | - Weichun Yang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; National Engineering Research Centre for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410083, China
| | - Qi Liao
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; National Engineering Research Centre for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410083, China
| | - Liyuan Chai
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; National Engineering Research Centre for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China; Water Pollution Control Technology Key Lab of Hunan Province, Changsha 410083, China
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Li F, Yin H, Zhu T, Zhuang W. Understanding the role of manganese oxides in retaining harmful metals: Insights into oxidation and adsorption mechanisms at microstructure level. ECO-ENVIRONMENT & HEALTH (ONLINE) 2024; 3:89-106. [PMID: 38445215 PMCID: PMC10912526 DOI: 10.1016/j.eehl.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/08/2024] [Indexed: 03/07/2024]
Abstract
The increasing intensity of human activities has led to a critical environmental challenge: widespread metal pollution. Manganese (Mn) oxides have emerged as potentially natural scavengers that perform crucial functions in the biogeochemical cycling of metal elements. Prior reviews have focused on the synthesis, characterization, and adsorption kinetics of Mn oxides, along with the transformation pathways of specific layered Mn oxides. This review conducts a meticulous investigation of the molecular-level adsorption and oxidation mechanisms of Mn oxides on hazardous metals, including adsorption patterns, coordination, adsorption sites, and redox processes. We also provide a comprehensive discussion of both internal factors (surface area, crystallinity, octahedral vacancy content in Mn oxides, and reactant concentration) and external factors (pH, presence of doped or pre-adsorbed metal ions) affecting the adsorption/oxidation of metals by Mn oxides. Additionally, we identify existing gaps in understanding these mechanisms and suggest avenues for future research. Our goal is to enhance knowledge of Mn oxides' regulatory roles in metal element translocation and transformation at the microstructure level, offering a framework for developing effective metal adsorbents and pollution control strategies.
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Affiliation(s)
- Feng Li
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, China
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, China
- Institute of Eco-environmental Forensics, Shandong University, Qingdao 266237, China
| | - Hui Yin
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Ministry of Ecology and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Tianqiang Zhu
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, China
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, China
- Institute of Eco-environmental Forensics, Shandong University, Qingdao 266237, China
| | - Wen Zhuang
- School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, China
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, China
- National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Institute of Eco-environmental Forensics, Shandong University, Qingdao 266237, China
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3
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Yang S, Shobnam N, Sun Y, Löffler FE, Im J. The relative contributions of Mn(III) and Mn(IV) in manganese dioxide polymorphs to bisphenol A degradation. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132596. [PMID: 37757556 DOI: 10.1016/j.jhazmat.2023.132596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/03/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023]
Abstract
Polymorphs of MnO2 comprise Mn(III) and Mn(IV), which are both strong oxidants capable of BPA degradation, but their relative contributions are unclear. To advance process understanding, the reactivities of biogenic MnO2 prepared using Roseobacter sp. AzwK-3b and synthetic MnO2 (i.e., hexagonal and triclinic birnessite) toward BPA were compared. Both colloidal and particulate biogenic MnO2, as well as triclinic birnessite, showed insignificant reactivity towards BPA, but degradation did occur when pyrophosphate (PP), a ligand for Mn(III), was present. Despite higher Mn(III) content of triclinic birnessite (38.6 %), only hexagonal birnessite with an Mn(III) content of 30.4 % degraded BPA without PP, and no rate increases were observed following the addition of PP. Similarly, colloidal MnO2 degraded BPA with nearly double the rate measured with particulate MnO2 (i.e., 1.24 ± 0.10 versus 0.73 ± 0.08 h-1), even though the Mn(III) contents were only 10 % different. The Mn(III) release rates from each MnO2 polymorph in the presence of PP correlated more strongly with the observed BPA degradation rates than with Mn(III) content, suggesting that both Mn(III) release rate and Mn(III) content govern MnO2-mediated BPA degradation. In natural settings, Mn(III) generally occurs in complexed form suggesting that laboratory testing should include ligands to derive environmentally relevant information about MnO2-mediated degradation of BPA and other compounds of concern.
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Affiliation(s)
- Seongmin Yang
- Department of Civil Engineering, Kansas State University, Manhattan, KS 66506, USA
| | - Nusrat Shobnam
- Department of Civil Engineering, Kansas State University, Manhattan, KS 66506, USA
| | - Yanchen Sun
- Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, TN 37996, USA; Center for Environmental Biotechnology, University of Tennessee, Knoxville, TN 37996, USA
| | - Frank E Löffler
- Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, TN 37996, USA; Center for Environmental Biotechnology, University of Tennessee, Knoxville, TN 37996, USA; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; Department of Microbiology, University of Tennessee, Knoxville, TN 37996, USA; Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996, USA
| | - Jeongdae Im
- Department of Civil Engineering, Kansas State University, Manhattan, KS 66506, USA.
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Koutani M, Hayashi E, Kamata K, Hara M. Synthesis and Aerobic Oxidation Catalysis of Mesoporous Todorokite-Type Manganese Oxide Nanoparticles by Crystallization of Precursors. J Am Chem Soc 2022; 144:14090-14100. [PMID: 35860845 DOI: 10.1021/jacs.2c02308] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The pursuit of a high surface area while maintaining high catalytic performance remains a challenge due to a trade-off relationship between these two features in some cases. In this study, mesoporous todorokite-type manganese oxide (OMS-1) nanoparticles with high specific surface areas were synthesized in one step by a new synthesis approach involving crystallization (i.e., solid-state transformation) of a precursor produced by a redox reaction between MnO4- and Mn2+ reagents. The use of a low-crystallinity precursor with small particles is essential to achieve this solid-state transformation into OMS-1 nanoparticles. The specific surface area reached up to ca. 250 m2 g-1, which is much larger than those (13-185 m2 g-1) for Mg-OMS-1 synthesized by previously reported methods including multistep synthesis or dissolution/precipitation processes. Despite ultrasmall nanoparticles, a linear correlation between the catalytic reaction rates of OMS-1 and the surface areas was observed without a trade-off relationship between particle size and catalytic performance. These OMS-1 nanoparticles exhibited the highest catalytic activity among the Mn-based catalysts tested for the oxidation of benzyl alcohol and thioanisole with molecular oxygen (O2) as the sole oxidant, including highly active β-MnO2 nanoparticles. The present OMS-1 nanomaterial could also act as a recyclable heterogeneous catalyst for the aerobic oxidation of various aromatic alcohols and sulfides under mild reaction conditions. The mechanistic studies showed that alcohol oxidation proceeds with oxygen species caused by the solid, and the high surface area of OMS-1 significantly contributes to an enhancement of the catalytic activity for aerobic oxidation.
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Affiliation(s)
- Maki Koutani
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Eri Hayashi
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Keigo Kamata
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Michikazu Hara
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
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5
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Kamata K, Kinoshita N, Koutani M, Aono R, Hayashi E, Hara M. β-MnO 2 nanoparticles as heterogenous catalysts for aerobic oxidative transformation of alcohols to carbonyl compounds, nitriles, and amides. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01476a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
β-MnO2 nanoparticles exhibit high catalytic performance for the aerobic oxidation of various aromatic, allylic, and heteroaromatic alcohols and one-pot tandem oxidation of alcohols to nitriles and amides in the presence of NH3.
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Affiliation(s)
- Keigo Kamata
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-City, Kanagawa, 226-8503, Japan
| | - Nanami Kinoshita
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-City, Kanagawa, 226-8503, Japan
| | - Maki Koutani
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-City, Kanagawa, 226-8503, Japan
| | - Ryusei Aono
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-City, Kanagawa, 226-8503, Japan
| | - Eri Hayashi
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-City, Kanagawa, 226-8503, Japan
| | - Michikazu Hara
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-City, Kanagawa, 226-8503, Japan
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6
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Balgooyen S, Remucal CK, Ginder-Vogel M. Identifying the mechanisms of cation inhibition of phenol oxidation by acid birnessite. JOURNAL OF ENVIRONMENTAL QUALITY 2020; 49:1644-1654. [PMID: 33459423 DOI: 10.1002/jeq2.20144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/31/2020] [Accepted: 08/07/2020] [Indexed: 06/12/2023]
Abstract
Many phenolic compounds found as contaminants in natural waters are susceptible to oxidation by manganese oxides. However, there is often variability between oxidation rates reported in pristine matrices and studies using more environmentally relevant conditions. For example, the presence of cations generally results in slower phenolic oxidation rates. However, the underlying mechanism of cation interference is not well understood. In this study, cation co-solutes inhibit the transformation of four target phenols (bisphenol A, estrone, p-cresol, and triclosan) by acid birnessite. Oxidation rates for these compounds by acid birnessite follow the same trend (Na+ > K+ > Mg2+ > Ca2+) when cations are present as co-solutes. We further demonstrate that the same trend applies to these cations when they are absent from solution but pre-exchanged with the mineral. We analyze valence state, surface area, crystallinity, and zeta potential to characterize changes in oxide structure. The findings of this study show that pre-exchanged cations have a large effect on birnessite reactivity even in the absence of cation co-solutes, indicating that the inhibition of phenolic compound oxidation is not due to competition for surface sites, as previously suggested. Instead, the reaction inhibition is attributed to changes in aggregation and the mineral microstructure.
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Affiliation(s)
- Sarah Balgooyen
- Environmental Chemistry and Technology Program, Univ. of Wisconsin-Madison, 660 N. Park St., Madison, WI, 53706, USA
| | - Christina K Remucal
- Environmental Chemistry and Technology Program, Univ. of Wisconsin-Madison, 660 N. Park St., Madison, WI, 53706, USA
- Dep. of Civil and Environmental Engineering, Univ. of Wisconsin-Madison, 660 N. Park St., Madison, WI, 53706, USA
| | - Matthew Ginder-Vogel
- Environmental Chemistry and Technology Program, Univ. of Wisconsin-Madison, 660 N. Park St., Madison, WI, 53706, USA
- Dep. of Civil and Environmental Engineering, Univ. of Wisconsin-Madison, 660 N. Park St., Madison, WI, 53706, USA
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7
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Yamaguchi Y, Aono R, Hayashi E, Kamata K, Hara M. Template-Free Synthesis of Mesoporous β-MnO 2 Nanoparticles: Structure, Formation Mechanism, and Catalytic Properties. ACS APPLIED MATERIALS & INTERFACES 2020; 12:36004-36013. [PMID: 32805787 DOI: 10.1021/acsami.0c08043] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mesoporous β-MnO2 nanoparticles were synthesized by a template-free low-temperature crystallization of Mn4+ precursors (low-crystallinity layer-type Mn4+ oxide, c-distorted H+-birnessite) produced by the reaction of MnO4- and Mn2+. The Mn starting materials, pH of the reaction solution, and calcination temperatures significantly affect the crystal structure, surface area, porous structure, and morphology of the manganese oxides formed. The pH conditions during the precipitation of Mn4+ precursors are important for controlling the morphology and porous structure of β-MnO2. Nonrigid aggregates of platelike particles with slitlike pores (β-MnO2-1 and -2) were obtained from the combinations of NaMnO4/MnSO4 and NaMnO4/Mn(NO3)2, respectively. On the other hand, spherelike particles with ink-bottle shaped pores (β-MnO2-3) were formed in NaMnO4/Mn(OAc)2 with pH adjustment (pH 0.8). The specific surface areas for β-MnO2-1, -2, and -3 were much higher than those for nonporous β-MnO2 nanorods synthesized using a typical hydrothermal method (β-MnO2-HT). On the other hand, c-distorted H+-birnessite precursors with a high interlayer metal cation (Na+ and K+) content led to the formation of α-MnO2 with a 2 × 2 tunnel structure. These mesoporous β-MnO2 materials acted as effective heterogeneous catalysts for the aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) as a bioplastic monomer and for the transformation of aromatic alcohols to the corresponding aldehydes, where the catalytic activities of β-MnO2-1, -2, and -3 were approximately 1 order of magnitude higher than that of β-MnO2-HT. β-MnO2-3 exhibited higher catalytic activity (especially for larger molecules) than the other β-MnO2 materials, and this is likely attributed to the nanometer-sized spaces.
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Affiliation(s)
- Yui Yamaguchi
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Ryusei Aono
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Eri Hayashi
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Keigo Kamata
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Michikazu Hara
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
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Jung H, Taillefert M, Sun J, Wang Q, Borkiewicz OJ, Liu P, Yang L, Chen S, Chen H, Tang Y. Redox Cycling Driven Transformation of Layered Manganese Oxides to Tunnel Structures. J Am Chem Soc 2020; 142:2506-2513. [PMID: 31913621 DOI: 10.1021/jacs.9b12266] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Mn oxides are among the most ubiquitous minerals on Earth and play critical roles in numerous elemental cycles in biotic/abiotic loops as the key redox center. Yet, it has long puzzled geochemists why the laboratory synthesis of todorokite, a tunnel-structured Mn oxide, is extremely difficult while it is the dominant form over other tunneled phases in low-temperature natural environments. This study employs a novel electrochemical method to mimic the cyclic redox reactions occurring over long geological time scales in an accelerated manner. The results revealed that the kinetics and electron flux of the cyclic redox reaction are key to the layer-to-tunnel structure transformation of Mn oxides, provided new insights for natural biotic and abiotic redox reactions, and explained the dominance of todorokite in nature.
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Affiliation(s)
| | | | - Jingying Sun
- Department of Physics and Texas Center for Superconductivity , University of Houston , Houston , Texas 77204 , United States
| | | | - Olaf J Borkiewicz
- Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | | | | | - Shuo Chen
- Department of Physics and Texas Center for Superconductivity , University of Houston , Houston , Texas 77204 , United States
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9
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Hu E, Pan S, Zhang W, Zhao X, Liao B, He F. Impact of dissolved O 2 on phenol oxidation by δ-MnO 2. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2019; 21:2118-2127. [PMID: 31667476 DOI: 10.1039/c9em00389d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although redox reactions of organic contaminants with manganese oxides have been extensively studied, the role of dissolved O2 in these processes has largely been overlooked. In this study, the oxidative degradation of phenol by δ-MnO2 was investigated under both oxic and anoxic conditions. Dissolved O2 inhibited phenol degradation due to its promoting role in the reoxidation and precipitation of reduced Mn(ii) to Mn(iii) on the δ-MnO2 surface, resulting in partial transformation of δ-MnO2 to "c-disordered" H+-birnessite at pH 5.5 and feitknechtite, manganite, and hausmannite at pH 7.0 and 8.5. The reformed Mn(iii) phases could reduce phenol oxidation by blocking reactive sites of δ-MnO2. In addition, dissolved O2 caused a higher degree of particle agglomeration and a more severe specific surface area decrease, and hence lower reactivity of δ-MnO2. These findings revealed that after reductive dissolution by phenol and reoxidation by dissolved O2 throughout continuous redox cycling, δ-MnO2 became less reactive rather than being regenerated. These results can provide new insights into the understanding of the oxidation of organic contaminants by manganese oxides in the natural environment.
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Affiliation(s)
- Erdan Hu
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
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10
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Fan C, Xu L, Zhao W. Transformation of birnessite into hollandite under the influence of silver cations in aqueous medium. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.08.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Khatiwada R, Olivares C, Abrell L, Root RA, Sierra-Alvarez R, Field JA, Chorover J. Oxidation of reduced daughter products from 2,4-dinitroanisole (DNAN) by Mn(IV) and Fe(III) oxides. CHEMOSPHERE 2018; 201:790-798. [PMID: 29550573 DOI: 10.1016/j.chemosphere.2018.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/21/2018] [Accepted: 03/03/2018] [Indexed: 06/08/2023]
Abstract
Abiotic transformation of anthropogenic compounds by redox-active metal oxides affects contaminant fate in soil. The capacity of birnessite and ferrihydrite to oxidize the insensitive munitions compound, 2,4-dinitroanisol (DNAN), and its amine-containing daughter products, 2-methoxy-5-nitro aniline (MENA) and 2,4-diaminoanisole (DAAN), was studied in stirred reactors at controlled pH (7.0). Aqueous suspensions were reacted at metal oxide solid to solution mass ratios (SSR) of 0.15, 1.5 and 15 g kg-1 and solutions were analyzed after 0-3 h by high performance liquid chromatography coupled with photodiode array or mass spectrometry detection. Results indicate that DNAN was resistant to oxidation by birnessite and ferrihydrite. Ferrihydrite did not oxidize MENA, but MENA was susceptible to rapid oxidation by birnessite, with nitrogen largely mineralized to nitrite. This is the first report on mineralization of nonphenolic aromatics and the release of mineralized N from aromatic amines following reaction with birnessite. DAAN was oxidized by both solids, but ca. ten times higher rate was observed with birnessite as compared to ferrihydrite at an SSR of 1.5 g kg-1. At 15 g kg-1 SSR, DAAN was removed from solution within 5 min of reaction with birnessite. CO2(g) evolution experiments indicate mineralization of 15 and 12% of the carbon associated with MENA and DAAN, respectively, under oxic conditions with birnessite at SSR of 15 g kg-1. The results taken as a whole indicate that initial reductive (bio)transformation products of DNAN are readily oxidized by birnessite. The oxidizability of the reduced DNAN products was increased with progressive (bio)reduction as reflected by impacts on the oxidation rate.
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Affiliation(s)
- Raju Khatiwada
- Department of Soil, Water and Environmental Science, University of Arizona, Tucson, AZ, USA
| | - Christopher Olivares
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA
| | - Leif Abrell
- Department of Soil, Water and Environmental Science, University of Arizona, Tucson, AZ, USA; Arizona Laboratory for Emerging Contaminants, University of Arizona, Tucson, AZ, USA
| | - Robert A Root
- Department of Soil, Water and Environmental Science, University of Arizona, Tucson, AZ, USA
| | - Reyes Sierra-Alvarez
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA
| | - James A Field
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA
| | - Jon Chorover
- Department of Soil, Water and Environmental Science, University of Arizona, Tucson, AZ, USA; Arizona Laboratory for Emerging Contaminants, University of Arizona, Tucson, AZ, USA.
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12
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Zhang B, Li Y, Valvo M, Fan L, Daniel Q, Zhang P, Wang L, Sun L. Electrocatalytic Water Oxidation Promoted by 3 D Nanoarchitectured Turbostratic δ-MnO x on Carbon Nanotubes. CHEMSUSCHEM 2017; 10:4472-4478. [PMID: 28675680 DOI: 10.1002/cssc.201700824] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 06/27/2017] [Indexed: 05/24/2023]
Abstract
The development of manganese-based water oxidation electrocatalysts is desirable for the production of solar fuels, as manganese is earth-abundant, inexpensive, non-toxic, and has been employed by the Photosystem II in nature for a billion years. Herein, we directly constructed a 3 D nanoarchitectured turbostratic δ-MnOx on carbon nanotube-modified nickel foam (MnOx /CNT/NF) by electrodeposition and a subsequent annealing process. The MnOx /CNT/NF electrode gives a benchmark catalytic current density (10 mA cm-2 ) at an overpotential (η) of 270 mV under alkaline conditions. A steady current density of 19 mA cm-2 is obtained during electrolysis at 1.53 V for 1.0 h. To the best of our knowledge, this work represents the most efficient manganese-oxide-based water oxidation electrode and demonstrates that manganese oxides, as a structural and functional model of oxygen-evolving complex (OEC) in Photosystem II, can also become comparable to those of most Ni- and Co-based catalysts.
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Affiliation(s)
- Biaobiao Zhang
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Yuanyuan Li
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Mario Valvo
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala, 75121, Sweden
| | - Lizhou Fan
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Quentin Daniel
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Peili Zhang
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Linqin Wang
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
| | - Licheng Sun
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology, Dalian, 116024, P. R. China
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13
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Ling FT, Post JE, Heaney PJ, Kubicki JD, Santelli CM. Fourier-transform infrared spectroscopy (FTIR) analysis of triclinic and hexagonal birnessites. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 178:32-46. [PMID: 28161657 DOI: 10.1016/j.saa.2017.01.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 01/01/2017] [Accepted: 01/16/2017] [Indexed: 06/06/2023]
Abstract
The characterization of birnessite structures is particularly challenging for poorly crystalline materials of biogenic origin, and a determination of the relative concentrations of triclinic and hexagonal birnessite in a mixed assemblage has typically required synchrotron-based spectroscopy and diffraction approaches. In this study, Fourier-transform infrared spectroscopy (FTIR) is demonstrated to be capable of differentiating synthetic triclinic Na-birnessite and synthetic hexagonal H-birnessite. Furthermore, IR spectral deconvolution of peaks resulting from MnO lattice vibrations between 400 and 750cm-1 yield results comparable to those obtained by linear combination fitting of synchrotron X-ray absorption fine structure (EXAFS) data when applied to known mixtures of triclinic and hexagonal birnessites. Density functional theory (DFT) calculations suggest that an infrared absorbance peak at ~1628cm-1 may be related to OH vibrations near vacancy sites. The integrated intensity of this peak may show sensitivity to vacancy concentrations in the Mn octahedral sheet for different birnessites.
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Affiliation(s)
- Florence T Ling
- Department of Geosciences, Penn State University, University Park, PA 16802, USA.
| | - Jeffrey E Post
- Department of Mineral Sciences, NHB 119, Smithsonian Institute, Washington, DC 20013-7012, USA
| | - Peter J Heaney
- Department of Geosciences, Penn State University, University Park, PA 16802, USA
| | - James D Kubicki
- Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79968, USA
| | - Cara M Santelli
- Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455, USA
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14
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Duckworth OW, Rivera NA, Gardner TG, Andrews MY, Santelli CM, Polizzotto ML. Morphology, structure, and metal binding mechanisms of biogenic manganese oxides in a superfund site treatment system. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2017; 19:50-58. [PMID: 27942631 DOI: 10.1039/c6em00525j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Manganese oxides, which may be biogenically produced in both pristine and contaminated environments, have a large affinity for many trace metals. In this study, water and Mn oxide-bearing biofilm samples were collected from the components of a pump and treat remediation system at a superfund site. To better understand the factors leading to their formation and their effects on potentially toxic metal fate, we conducted a chemical, microscopic, and spectroscopic characterization of these biofilm samples. Scanning electron microscopy revealed the presence of Mn oxides in close association with biological structures with morphologies consistent with fungi. X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) revealed the oxides to be a mixture of layer and tunnel structure Mn(iv) oxides. In addition, XAS suggested that Ba, Co, and Zn all primarily bind to oxides in the biofilm in a manner that is analogous to synthetic or laboratory grown bacteriogenic Mn oxides. The results indicate that Mn oxides produced by organisms in the system may effectively scavenge metals, thus highlighting the potential utility of these organisms in designed remediation systems.
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Affiliation(s)
- O W Duckworth
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, North Carolina 27695, USA.
| | - N A Rivera
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, North Carolina 27695, USA. and Department of Civil and Environmental Engineering, Duke University, Durham, NC 27708, USA
| | - T G Gardner
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, North Carolina 27695, USA.
| | - M Y Andrews
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, North Carolina 27695, USA.
| | - C M Santelli
- Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455, USA
| | - M L Polizzotto
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, North Carolina 27695, USA.
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15
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Zhao H, Zhu M, Li W, Elzinga EJ, Villalobos M, Liu F, Zhang J, Feng X, Sparks DL. Redox Reactions between Mn(II) and Hexagonal Birnessite Change Its Layer Symmetry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:1750-8. [PMID: 26745815 DOI: 10.1021/acs.est.5b04436] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Birnessite, a phyllomanganate and the most common type of Mn oxide, affects the fate and transport of numerous contaminants and nutrients in nature. Birnessite exhibits hexagonal (HexLayBir) or orthogonal (OrthLayBir) layer symmetry. The two types of birnessite contain contrasting content of layer vacancies and Mn(III), and accordingly have different sorption and oxidation abilities. OrthLayBir can transform to HexLayBir, but it is still vaguely understood if and how the reverse transformation occurs. Here, we show that HexLayBir (e.g., δ-MnO2 and acid birnessite) transforms to OrthLayBir after reaction with aqueous Mn(II) at low Mn(II)/Mn (in HexLayBir) molar ratios (5-24%) and pH ≥ 8. The transformation is promoted by higher pH values, as well as smaller particle size, and/or greater stacking disorder of HexLayBir. The transformation is ascribed to Mn(III) formation via the comproportionation reaction between Mn(II) adsorbed on vacant sites and the surrounding layer Mn(IV), and the subsequent migration of the Mn(III) into the vacancies with an ordered distribution in the birnessite layers. This study indicates that aqueous Mn(II) and pH are critical environmental factors controlling birnessite layer structure and reactivity in the environment.
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Affiliation(s)
- Huaiyan Zhao
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University , Wuhan 430070, China
| | - Mengqiang Zhu
- Department of Ecosystem Science and Management, University of Wyoming , Laramie, Wyoming 82071, United States
| | - Wei Li
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University , Nanjing 210093, China
- Environmental Soil Chemistry Group, Delaware Environmental Institute and Department of Plant and Soil Sciences, University of Delaware , Newark, Delaware 19716, United States
| | - Evert J Elzinga
- Department of Earth & Environmental Sciences, Rutgers University , Newark, New Jersey 07102, United States
| | - Mario Villalobos
- Geochemistry Department, Geology Institute, Universidad Nacional Autónoma de México (UNAM) , Mexico, D.F. 04510, Mexico
| | - Fan Liu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University , Wuhan 430070, China
| | - Jing Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100039, China
| | - Xionghan Feng
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University , Wuhan 430070, China
- Environmental Soil Chemistry Group, Delaware Environmental Institute and Department of Plant and Soil Sciences, University of Delaware , Newark, Delaware 19716, United States
| | - Donald L Sparks
- Environmental Soil Chemistry Group, Delaware Environmental Institute and Department of Plant and Soil Sciences, University of Delaware , Newark, Delaware 19716, United States
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