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1. Migration and transformation of Sb are affected by Mn(III/IV) associated with lepidocrocite originating from Fe(II) oxidation

Author:
Yalu Shao; Qian Sun; Liangkai Wang; Weiyong Zhan; Hongwei Zhang; Hua Zhong
Source:
Journal of environmental sciences (China) 2022 v.115 pp. 308-318
ISSN:
1001-0742
Subject:
manganese oxides,   etc   ; lepidocrocite; oxidation; pollutants; sorption; toxicity; China;     Show all 7 Subjects
Abstract:
... Antimony (Sb) is a recognized priority pollutant with toxicity that is influenced by its migration and transformation processes. Oxidation of Fe(II) to Fe(III) oxides, which is a common phenomenon in the environment, is often accompanied by the formation of Mn(III/IV) and might affect the fate of Sb. In this study, incorporated Mn(III) and sorbed/precipitated Mn(III/IV) associated with lepidocroci ...
DOI:
10.1016/j.jes.2021.08.001

2. A newly isolated indigenous metal-reducing bacterium induced Fe and Mn oxides synergy for enhanced in situ As(III/V) immobilization in groundwater

Author:
Xinxin Zhao; Zuoming Xie; Ping Li; Mengna Chen; Zhaoqi Zhong
Source:
Journal of hydrology 2022 v.608 pp. 127635
ISSN:
0022-1694
Subject:
manganese oxides,   etc   ; Bacillus (bacteria); arsenates; arsenic; arsenites; bacteria; groundwater; synergism;     Show all 8 Subjects
Abstract:
... Iron-manganese binary oxides (Fe-Mn oxides) have the potential to immobilize arsenite/arsenate [As(III/V)] in situ in natural environments. However, the As(III/V) immobilization performances of Fe-Mn oxides in the presence of indigenous metal-reducing bacteria in reducing groundwater systems have received limited attention. Here, As(III/V) immobilization by Fe-Mn oxides and the interactions of Fe ...
DOI:
10.1016/j.jhydrol.2022.127635

3. Nano zero-valent iron-induced changes in soil iron species and soil bacterial communities contribute to the fate of Cd

Author:
Mengjiao Liu; Jun Wang; Meng Xu; Sheng Tang; Jingjie Zhou; Wankun Pan; Qingxu Ma; Lianghuan Wu
Source:
Journal of hazardous materials 2022 v.424 pp. 127343
ISSN:
0304-3894
Subject:
manganese oxides,   etc   ; Alicyclobacillus; bacterial communities; community structure; iron; irradiation; soil pH; soil remediation;     Show all 8 Subjects
Abstract:
... Nano zero-valent iron (nZVI) is used for soil remediation; however, the impact of nZVI on soil solid iron phases and its interactions with soil microorganisms in relation to the fate of Cd in soil remains unclear. In the current study, we investigated the mechanisms underlying the change in mobility of Cd in exogenous Cd-contaminated soil with nZVI and γ radiation treatments. The results showed th ...
DOI:
10.1016/j.jhazmat.2021.127343

4. Acid spill impact on Sonora River basin. Part I. sediments: Affected area, pollutant geochemistry and health aspects

Author:
Margarita Gutierrez-Ruiz; Alejandra Muro-Puente; Agueda E. Ceniceros-Gómez; Daniel Amaro-Ramírez; Leticia Pérez-Manzanera; L Gerardo Martínez-Jardines; Francisco Romero
Source:
Journal of environmental management 2022 v.314 pp. 115032
ISSN:
0301-4797
Subject:
manganese oxides,   etc   ; electrical conductivity; environmental management; geochemistry; mineralization; pH; people; pollutants; rivers; sediments; toxicity; watersheds;     Show all 12 Subjects
Abstract:
... The Sonora River and its tributary streams (Tinajas, Bacanuchi) were impacted in 2014 by an acid solution spill (approximately 40,000 m³). This study aims to presents a clear and supported overview to determining the spill's consequences on the environment and the people inhabiting the area. The elements quantified were those found in the spilled solution: Al, As, Cu, Fe, Mn, Pb, and Zn. Potential ...
DOI:
10.1016/j.jenvman.2022.115032

5. Mitigating cadmium contamination of rice soils supporting tobacco–rice rotation in southern China: Win–win or lose–lose?

Author:
Yang Yang; Tianqi Wang; Yanling Li; Meie Wang; Weiping Chen; Yating Dai
Source:
Journal of hazardous materials 2022 v.425 pp. 128052
ISSN:
0304-3894
Subject:
manganese oxides,   etc   ; cadmium; economics; food intake; kidneys; leaves; males; manganese; nitrogen; phosphorus; phytoaccumulation; rice; soil pH; tillage; China;     Show all 15 Subjects
Abstract:
... The present study evaluates the sustainability of tobacco-rice rotation by reducing the phytoavailability of cadmium (Cd) to rice by combining large-scale field sampling and regional investigations in southern China. The rotation involves frequent tillage and liberal application of nitrogen and phosphorus fertilizers, which increases yields but lowers soil pH. As a result, manganese is lost from s ...
DOI:
10.1016/j.jhazmat.2021.128052

6. Effects of cobalt doping on the reactivity of hausmannite for As(III) oxidation and As(V) adsorption

Author:
Shuang Zhang; Hui Li; Zhongkuan Wu; Jeffrey E. Post; Bruno Lanson; Yurong Liu; Biyun Hu; Mingxia Wang; Limei Zhang; Mei Hong; Fan Liu; Hui Yin
Source:
Journal of environmental sciences (China) 2022 v.122 pp. 217-226
ISSN:
1001-0742
Subject:
manganese oxides,   etc   ; adsorption; arsenic; oxidation; China;     Show all 5 Subjects
Abstract:
... Hausmannite is a common low valence Mn oxide mineral, with a distorted spinel structure, in surficial sediments. Although natural Mn oxides often contain various impurities of transitional metals (TMs), few studies have addressed the effect and related mechanism of TM doping on the reactivity of hausmannite with metal pollutants. Here, the reactivity of cobalt (Co) doped hausmannite with aqueous A ...
DOI:
10.1016/j.jes.2022.02.004

7. Insights into the underlying mechanisms of stability working for As(III) removal by Fe-Mn binary oxide as a highly efficient adsorbent

Author:
Qian Zheng; Shuxin Tu; Jingtao Hou; Chunlan Ni; Mengqing Wang; Lu Ren; Mingxia Wang; Menghua Cao; Shuanglian Xiong; Wenfeng Tan
Source:
Water research 2021 v.203 pp. 117558
ISSN:
0043-1354
Subject:
manganese oxides,   etc   ; adsorbents; adsorption; groundwater; oxidation; research;     Show all 6 Subjects
Abstract:
... Fe-Mn binary oxide has received increasing interest in treating As(III)-containing polluted groundwater due to its low cost and environmental friendliness. Although the stability of Fe-Mn binary oxide is as important as its adsorption ability, little is known about whether and why Fe-Mn binary oxide is stable during As(III) removal. In this study, five successive cycles were conducted to evaluate ...
DOI:
10.1016/j.watres.2021.117558

8. Relationship of Selected Soil Properties with the Micronutrients in Salt-Affected Soils

Author:
Muhammad Mohiuddin; Muhammad Irshad; Sadaf Sher; Faisal Hayat; Ammar Ashraf; Salman Masood; Sumera Bibi; Jawad Ali; Muhammad Waseem
Source:
Land 2022 v.11 no.6 pp. -
ISSN:
2073-445X
Subject:
manganese oxides,   etc   ; carbonates; fractionation; land; multivariate analysis; organic matter; pH; saline soils; salinity; sodicity; soil salinity; water solubility; zinc; Pakistan;     Show all 14 Subjects
Abstract:
... The present study aimed to assess the relationship of soil properties in salt-affected soils. The soil samples were collected from 14 districts of Pakistan. Soil salinity and sodicity are the common features of the arid and semiarid regions. The effects of the salt’s interactions with soil micronutrients have not been well studied. Therefore, saline and non-saline soil samples were collected from ...
DOI:
10.3390/land11060845

9. Microbial controls on heavy metals and nutrients simultaneous release in a seasonally stratified reservoir

Author:
Xuecheng Zhang; Shiyuan Ding; Hong Lv; Gaoyang Cui; Mengdi Yang; Yiyao Wang; Tianhao Guan; Xiao-Dong Li
Source:
Environmental science and pollution research 2022 v.29 no.2 pp. 1937-1948
ISSN:
0944-1344
Subject:
manganese oxides,   etc   ; ammonium; ammonium nitrogen; autumn; biogeochemistry; dissolved oxygen; eutrophication; heavy metals; iron; karsts; nitrate reduction; nitrogen; particulates; phosphorus; pollution; research; risk; summer; temperature;     Show all 19 Subjects
Abstract:
... The eutrophication of reservoirs can change the physicochemical parameters of water, thus affecting the migration and transformation of heavy metals. At present, there is insufficient research on the coupling mechanisms between nutrients and heavy metals, especially between heavy metals in suspended particles. In this paper, spatial and temporal distribution characteristics of nutrients dissolved ...
DOI:
10.1007/s11356-021-15776-4

10. Mn3O4 encapsulated in hollow carbon spheres coated by graphene layer for enhanced magnetization and lithium-ion batteries performance

Author:
Elisa Thauer; Xiaoze Shi; Shuai Zhang; Xuecheng Chen; Lukas Deeg; Rüdiger Klingeler; Karolina Wenelska; Ewa Mijowska
Source:
Energy 2021 v.217 pp. 119399
ISSN:
0360-5442
Subject:
manganese oxides,   etc   ; anodes; electrical conductivity; electrochemistry; energy; graphene; manganese; nanocomposites; temperature;     Show all 9 Subjects
Abstract:
... We report a facile method to prepare graphene coated core-shell Mn₃O₄ nanoparticles encapsulated in hollow carbon sphere (HCS) (G–HCS–Mn₃O₄). HCSs were firstly prepared at high temperature based on a core-shell template, leading to good electrical conductivity of 21.6 S m⁻¹. The porous shells of HCSs provide passage for the manganese precursors and big cavities to store the inorganic particles. Fu ...
DOI:
10.1016/j.energy.2020.119399

11. Mn3O4 anchored polypyrrole nanotubes as an efficient sulfur host for high performance lithium-sulfur batteries

Author:
Gongyu Wen; Yulei Sui; Xiaoping Zhang; Jiangpeng Li; Ziwei Zhang; Shengkui Zhong; Shibao Tang; Ling Wu
Source:
Journal of colloid and interface science 2021 v.589 pp. 208-216
ISSN:
0021-9797
Subject:
manganese oxides,   etc   ; cathodes; electrochemistry; energy density; lithium; nanotubes; pyrroles; reaction kinetics; sulfur;     Show all 9 Subjects
Abstract:
... Lithium-sulfur batteries have attracted numerous attentions owing to their high theory discharge specific capacity and energy density. However, sulfur cathode usually suffers from poor cycle stability and slow reaction kinetics, caused by its poor conductivity, excessive volume changes during charge/discharge processes, complex sulfur species conversion reaction and the dissolution of polysulfide ...
DOI:
10.1016/j.jcis.2021.01.006

12. Impacts of ammonium ion on triclinic birnessites towards the transformation of As(III)

Author:
Lu Jiang; Pingxiao Wu; Yijing Xu; Yihao Li; Meiqing Chen; Zubair Ahmed; Nengwu Zhu
Source:
Environmental pollution 2022 v.298 pp. 118815
ISSN:
0269-7491
Subject:
manganese oxides,   etc   ; adsorption; ammonium; arsenites; birnessite; groundwater; oxidation; oxygen; pH; pollution; surface area;     Show all 11 Subjects
Abstract:
... Triclinic birnessite (TB), a typical layered Mn oxide which is abundant naturally occurring minerals with a vital impact on the transformation of arsenite (As(III)) by adsorption and oxidation. As one of the most common critical metalloids, ammonium ion (NH₄⁺) universally coexists with birnessite in marine, sediments or groundwater where are contaminated with As(III). In this study, we investigate ...
DOI:
10.1016/j.envpol.2022.118815

13. Adsorption enhanced the oxidase-mimicking catalytic activity of octahedral-shape Mn3O4 nanoparticles as a novel colorimetric chemosensor for ultrasensitive and selective detection of arsenic

Author:
Jiajia Wang; Han Tao; Tingting Lu; Yuangen Wu
Source:
Journal of colloid and interface science 2021 v.584 pp. 114-124
ISSN:
0021-9797
Subject:
manganese oxides,   etc   ; absorption; adsorbents; adsorption; aqueous solutions; arsenic; catalytic activity; colorimetry; detection limit;     Show all 9 Subjects
Abstract:
... Several researches have reported that Mn₃O₄ nanoparticles (NPs) could be used as adsorbent to remove arsenic from aqueous solution. However, we found that Mn₃O₄ NPs can not only adsorb arsenic, but also enhance the catalytic activity of Mn₃O₄ NPS, which enable us to establish a new method for the determination of arsenic. Herein, the adsorption of arsenic changes surface morphology of octahedral M ...
DOI:
10.1016/j.jcis.2020.09.107

14. Binder-free tableting experiments on manganese oxides and industrial mineral powders

Author:
John-Lee Dubos; Beate Orberger; Julien Banchet; Jean-Michel Milazzo; Simon B. Blancher; Thomas Wallmach; Johannes Lützenkirchen
Source:
Powder technology 2021 v.377 pp. 194-211
ISSN:
0032-5910
Subject:
manganese oxides,   etc   ; bentonite; concentrates; kaolinite; materials; montmorillonite; pH; powders; pressure; recycling; technology; water;     Show all 12 Subjects
Abstract:
... Cold, binder-free tableting experiments under controlled pressure (0-450 MPa), water addition (0-10 wt.%) and pH (4, 11) were performed on powder of pyrolusite ore concentrates, refined hausmannite, bentonite, kaolinite, as well as blends of those materials. It has been shown that increased pressure was beneficial for agglomeration of oxide materials, but pressure > 250 MPa triggered an elastic re ...
DOI:
10.1016/j.powtec.2020.08.032

15. Coupled Mn(II) and Cr(III) Oxidation Mediated by Ascomycete Fungi

Author:
Xiaolei Liu; Hailiang Dong; Colleen M. Hansel
Source:
Environmental science & technology 2021 v.55 no.23 pp. 16236-16245
ISSN:
1520-5851
Subject:
manganese oxides,   etc   ; Ascomycota; adsorption; chromium; environmental science; fungi; manganese; metabolites; oxidants; oxidation; technology;     Show all 11 Subjects
Abstract:
... Manganese (Mn) oxides are considered as the primary oxidant of trivalent chromium [Cr(III)] in the environment. Microbial activities are responsible for the majority of Mn oxide formation in nature, thus likely influencing Cr(III) oxidation. Previous studies have been limited to Cr(III) oxidation by bacterial Mn oxides. Herein, we report coupled Mn(II) and Cr(III) oxidation in the presence of thre ...
DOI:
10.1021/acs.est.1c05341

16. Does Tert-Butyl Alcohol Really Terminate the Oxidative Activity of •OH in Inorganic Redox Chemistry?

Author:
Zhenwei Gao; Dandan Zhang; Young-Shin Jun
Source:
Environmental science & technology 2021 v.55 no.15 pp. 10442-10450
ISSN:
1520-5851
Subject:
manganese oxides,   etc   ; alcohols; electron transfer; half life; hydroxyl radicals; oxidation; quantitative analysis; technology;     Show all 8 Subjects
Abstract:
... The hydroxyl radical, •OH, is one of the most reactive free radicals and plays significant roles in the oxidative degradation of organic pollutants and the electron transfer of inorganic ions in natural and engineered environmental processes. To quantitatively determine the contribution of •OH to oxidative reactions, a specific scavenger, such as tert-butyl alcohol (TBA), is usually added to elimi ...
DOI:
10.1021/acs.est.1c01578

17. Indicator of redox in soil (IRIS) films as a water management tool for rice farmers

Author:
Abby E. Evans; Matt A. Limmer; Angelia L. Seyfferth
Source:
Journal of environmental management 2021 v.294 pp. 112920
ISSN:
0301-4797
Subject:
manganese oxides,   etc   ; environmental management; food availability; paddies; redox potential; rice; water management; wetlands;     Show all 8 Subjects
Abstract:
... Rice is a crucial part of the world's food supply but is also susceptible to uptake of contaminants including arsenic (As) and cadmium (Cd) depending on the soil redox potential. Careful control of soil redox state by implementing alternate wetting and drying (AWD) water management can decrease mobility of soil As and Cd, but can be difficult to manage. Indicators of reduction in soil (IRIS) tubes ...
DOI:
10.1016/j.jenvman.2021.112920

18. Determining Factors in Triggering Hysteretic Oxygen Capacities in Lithium-Excess Sodium Layered Oxides

Author:
Sangeon Park; Jaewoon Lee; Hyungjun Kim; Gwanghyeon Chioi; Sojung Koo; Jinwoo Lee; Maenghyo Cho; Duho Kim
Source:
ACS applied materials & interfaces 2022 v.14 no.17 pp. 19515-19523
ISSN:
1944-8252
Subject:
manganese oxides,   etc   ; electric potential difference; energy density; enthalpy; hysteresis; oxygen; reaction mechanisms; sodium;     Show all 8 Subjects
Abstract:
... Oxygen redox (OR) reactions in sodium layered oxide cathodes have been studied intensively to harness their full potential in achieving high energy density for sodium-ion batteries (SIBs). However, OR triggers a large hysteretic voltage during discharge after the first charge process for OR-based oxides, and its intrinsic origin is unclear. Therefore, in this study, an in-depth reinvestigation on ...
DOI:
10.1021/acsami.2c02438

19. Cr doped Mn3O4 thermal catalytic isopropanol degradation at low-temperature and catalytic mechanism research

Author:
Bin Liu; Yuan Yang; Qingshuang Tan; Kun Zhou; Xiaojuan Xu; Yong Ding; Yu Han; Xiaoxing Fan; Ran Tao
Source:
Colloids and surfaces 2022 v.640 pp. 128390
ISSN:
0927-7757
Subject:
manganese oxides,   etc   ; air; catalysts; catalytic activity; energy; isopropyl alcohol; oxidation; oxygen; surface area; temperature;     Show all 10 Subjects
Abstract:
... Thermal catalytic oxidation is an important method for organic gaseous compounds degradation, which has been researched intensively. Here, Cr-doped Mn₃O₄ thermal catalyst with high-performance was synthesized by using a facile calcination method. Cr-doped Mn₃O₄ exhibited a large specific surface area, narrow band gap, and abundant oxygen vacancies. Cr-doped Mn₃O₄ presented an enhanced thermal cata ...
DOI:
10.1016/j.colsurfa.2022.128390

20. Salting-out aided dispersive extraction of Mn3O4 nanoparticles and carbon nanotubes for application in supercapacitors

Author:
Kaelan Rorabeck; Igor Zhitomirsky
Source:
Colloids and surfaces 2021 v.618 pp. 126451
ISSN:
0927-7757
Subject:
manganese oxides,   etc   ; adsorption; capacitance; carbon nanotubes; electrical resistance; electrochemical capacitors; electrochemistry; isopropyl alcohol; microstructure; nanocomposites;     Show all 10 Subjects
Abstract:
... In this study, results from a conceptually new method for the preparation of Mn₃O₄-multiwalled carbon nanotube (MCNT) composites are presented. High active mass (HAM) Mn₃O₄-MCNT cathodes are prepared and tested for supercapacitors. The method is based on a salting-out aided dispersive extraction of Mn₃O₄ particles precipitated in an aqueous phase to isopropanol and their co-dispersion with MCNT. T ...
DOI:
10.1016/j.colsurfa.2021.126451