As (III) adsorption–oxidation behavior and mechanisms on Cr (VI)-incorporated schwertmannite

H Ying, K Huang, X Feng, Y Yan, M Zhu… - Environmental …, 2021 - pubs.rsc.org
Schwertmannite, chromate (Cr (VI)), and arsenite (As (III)) usually coexist in acid mine
drainage (AMD) and surrounding areas, but their interactions and mechanisms are poorly …

As (III) retention kinetics, equilibrium and redox stability on biosynthesized schwertmannite and its fate and control on schwertmannite stability on acidic (pH 3.0) …

S Paikaray, J Göttlicher, S Peiffer - Chemosphere, 2012 - Elsevier
High As (III) enrichment in schwertmannite precipitated acid mine impacted areas is a major
concern considering its acute toxicity and mobility where the current knowledge of their …

Redox stability of As (III) on schwertmannite surfaces

S Paikaray, J Essilfie-Dughan, J Göttlicher… - Journal of hazardous …, 2014 - Elsevier
As (III)-enriched mine discharge often drains through Fe (III)-mineral abundant land covers
which makes the understanding of its fate and redox behaviour extremely important. We …

Mechanisms of Cr (VI) adsorption on schwertmannite under environmental disturbance: Changes in surface complex structures

X Li, C Guo, X Jin, C He, Q Yao, G Lu, Z Dang - Journal of Hazardous …, 2021 - Elsevier
Abstract Hexavalent chromium (Cr (VI)) mobility, reactivity and bioavailability in the acid
mine drainage (AMD) are restricted by adsorption reactions on schwertmannite. However …

Enhancing Coimmobilization Capacity of Schwertmannite for Arsenic and Cadmium through pH Elevation after Chemical Oxidation

X Wang, L Wang, J Fu, Y Zhang, Y Dong… - ACS ES&T …, 2024 - ACS Publications
Schwertmannite (Sch) is a promising environmental functional material for remediation of
arsenic pollution, particularly arsenite [As (III)], due to its unique adsorption mechanism …

Characterization of arsenic (III and V) adsorption on natural schwertmannite formed in acid coal mine drainage: Batch studies and spectroscopic observations

SY Lee, YJ Kim, SA Kang, B Chang, H Hur… - Journal of Environmental …, 2023 - Elsevier
The adsorption behavior of As (III) and As (V) on natural schwertmannite (NSCH) was
investigated using batch experiments and spectroscopic observations. NSCH showed …

The influence of Mn (II) on transformation of Cr-absorbed Schwertmannite: Mineral phase transition and elemental fate

H Tang, M Chen, P Wu, Y Li, T Wang, J Wu, L Sun… - Water Research, 2024 - Elsevier
Schwertmannite (Sch) is considered as an effective remover of Chromium (Cr) due to its
strong affinity for toxic Cr species. Since the instability of Sch, the environmental fate of Cr …

Effects of extreme pH conditions on the stability of As (V)-bearing schwertmannite

Y Wang, M Gao, W Huang, T Wang, Y Liu - Chemosphere, 2020 - Elsevier
Schwertmannite (Sch) is known to be an effective scavenger of arsenic (As) due to its strong
binding affinity for toxic As species. However, the evolution of As-bearing schwertmannite …

Surface properties of schwertmannite with different sulfate contents and its effect on Cr (VI) adsorption

C Wang, K Chen, M Yin, Y Zhou, Q Zhuang… - … et Cosmochimica Acta, 2024 - Elsevier
Sulfate is a critical component of schwertmannite. However, the sulfate content of
schwertmannite decreases with the increase in AMD-polluted river pH value, and its impact …

Investigation of the interactions occurring between Cr (VI) and citric acid-schwertmannite composites: a macroscopic and in situ ATR-FTIR study

X Li, C He, H Liang, K Chen, Q Yao… - ACS Earth and Space …, 2022 - ACS Publications
Organo-mineral composites play an important role in the mobility and bioavailability of toxic
metals in natural environments. However, the interactions between heavy metals and …