Journal ArticleDOI
Mechanisms of Mn(II) catalytic oxidation on ferrihydrite surfaces and the formation of manganese (oxyhydr)oxides
Shuai Lan,Xiaoming Wang,Quanjun Xiang,Hui Yin,Wenfeng Tan,Guohong Qiu,Fan Liu,Jing Zhang,Xionghan Feng +8 more
About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 2017-08-15. It has received 94 citations till now. The article focuses on the topics: Ferrihydrite & Goethite.read more
Citations
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Effects of MnO2 of different structures on activation of peroxymonosulfate for bisphenol A degradation under acidic conditions
TL;DR: In this paper, the effects of different structured MnO2 on peroxymonosulfate (PMS) activation in contaminant degradation, as quantified by the pseudo-first order rate constants of bisphenol A (BPA) oxidation, followed the order: α-MnO2, β-, γ-, and δ-MNO2.
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Effect of MnO2 Phase Structure on the Oxidative Reactivity toward Bisphenol A Degradation
TL;DR: The results showed that the MnO2 oxidative reactivity correlated highly positively with surface Mn(III) content and negatively withsurface Mn average oxidation state but correlated poorly with all other properties, indicating that surface Mn (III) played an important role in MnO 2 oxidative reactivities.
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Different Pathways for Cr(III) Oxidation: Implications for Cr(VI) Reoccurrence in Reduced Chromite Ore Processing Residue.
Weizhen Liu,Weizhen Liu,Jing Li,Jing Li,Jiayi Zheng,Jiayi Zheng,Yao Song,Zhenqing Shi,Zhang Lin,Zhang Lin,Liyuan Chai +10 more
TL;DR: The results suggest Cr(III) solids can be oxidized under alkaline oxic conditions even with a small amount of manganese oxides, providing new perspectives on Cr(VI) reoccurrence in rCOPR and emphasizing the environmental risks of Cr( III)solids in alkaline environments.
Journal ArticleDOI
Photoelectric conversion on Earth's surface via widespread Fe- and Mn-mineral coatings.
Anhuai Lu,Anhuai Lu,Yan Li,Hongrui Ding,Xiaoming Xu,Yanzhang Li,Guiping Ren,Jing Liang,Yuwei Liu,Hao Hong,Ning Chen,Shengqi Chu,Feifei Liu,Haoran Wang,Cong Ding,Changqiu Wang,Yong Lai,Juan Liu,Jeffrey M. Dick,Kaihui Liu,Michael F. Hochella +20 more
TL;DR: This work reveals the inherent “phototrophic-like” behavior of vast expanses of natural rock/soil surfaces from deserts, red soils, and karst environments, all of which can drive photon-to-electron conversions.
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Influence of mining activities on groundwater hydrochemistry and heavy metal migration using a self-organizing map (SOM)
TL;DR: In this paper, a self-organizing map (SOM) calculation and stable isotopes were used to illustrate groundwater hydrochemistry and heavy metal migration, especially concerning Fe, based on the test results of 92 groundwater samples from the study area.
References
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Environmental Applications of Semiconductor Photocatalysis
TL;DR: The slow pace of hazardous waste remediation at military installations around the world is causing a serious delay in conversion of many of these facilities to civilian uses as discussed by the authors, which is a serious problem.
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The iron oxides: structure, properties, reactions, occurrences and uses.
R. M. Cornell,Udo Schwertmann +1 more
TL;DR: In this article, the authors introduce the concept of iron oxides and their properties, including surface chemistry and Colloidal stability, as well as their properties in terms of surface area and porosity.
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Ferrozine---a new spectrophotometric reagent for iron
TL;DR: The ferroin group has been known to react as bidentate ligands with certain metal ions such as ferrous, cuprous, and cobaltous, to give colored complex species.
Journal ArticleDOI
The absolute energy positions of conduction and valence bands of selected semiconducting minerals
Yong Xu,Martin A.A. Schoonen +1 more
TL;DR: In this article, the absolute energy positions of conduction and valence band edges were compiled for about 50 each semiconducting metal oxide and metal sulfide minerals, and the relationship between energy levels at mineral semiconductor-electrolyte interfaces and the activities of these minerals as a catalyst or photocatalyst in aqueous redox reactions were reviewed.