Reductive materials for remediation of hexavalent chromium contaminated soil–A review

Z Yang, X Zhang, Z Jiang, Q Li, P Huang… - Science of the Total …, 2021 - Elsevier
Chemical reduction of Cr (VI) to Cr (III) by reductive materials is the most widely used
technology for the remediation of Cr (VI)-contaminated soil due to its high efficiency …

Microbial reduction of Fe (III) in nontronite: role of biochar as a redox mediator

H Dong, ES Coffin, Y Sheng, ML Duley… - … et Cosmochimica Acta, 2023 - Elsevier
Biochar naturally occurs in soils and sediments as a result of wildfire, but its role in Fe redox
cycling is poorly known. In this study, bioreduction experiments were conducted with lactate …

Sulfur-based mixotrophic bio-reduction for efficient removal of chromium (VI) in groundwater

B Zhang, Z Wang, J Shi, H Dong - Geochimica et Cosmochimica Acta, 2020 - Elsevier
Organic matter and reduced sulfur compounds commonly coexist in groundwater aquifers
and their respective roles in Cr (VI) bio-reduction have been well established, but Cr (VI) bio …

Facilitating New Chromium Reducing Microbes to Enhance Hexavalent Chromium Reduction by In Situ Sonoporation-Mediated Gene Transfer in Soils

K Zhao, W Zhang, Z Liang, H Zhao, J Chai… - Environmental …, 2023 - ACS Publications
Chromium (Cr) is a heavy metal with a high toxicity and pathogenicity. Microbial reduction is
an effective strategy to remove Cr (VI) at contaminated sites but suffers from the low …

Chitin/clay microspheres with hierarchical architecture for highly efficient removal of organic dyes

R Xu, J Mao, N Peng, X Luo, C Chang - Carbohydrate polymers, 2018 - Elsevier
Numerous adsorbents have been reported for efficient removal of dye from water, but the
high cost raw materials and complicated fabrication process limit their practical applications …

Enhanced Cr (VI) bioreduction by biochar: Insight into the persistent free radicals mediated extracellular electron transfer

C Yu, X Zhu, A Mohamed, K Dai, P Cai, S Liu… - Journal of Hazardous …, 2023 - Elsevier
Biochar can act as a shuttle to accelerate the extracellular electron transfer (EET) by
exoelectrogens. However, it is poorly understood how the persistent free radicals (PFRs) in …

Cr (VI) reductase activity locates in the cytoplasm of Aeribacillus pallidus BK1, a novel Cr (VI)-reducing thermophile isolated from Tengchong geothermal region …

Y Ma, H Zhong, Z He - Chemical Engineering Journal, 2019 - Elsevier
Despite significant advances in remediation of Cr (VI) by microorganisms, studies on Cr (VI)-
reducing thermophiles are still limited, which are highly desirable to be applied in Cr (VI) …

Dual-emissive waste oil based S-doped carbon dots for acetone detection and Cr (VI) detection/reduction/removal

M Rangel, S Saluja, V Barba, JS Pérez-Huerta… - Journal of …, 2023 - Elsevier
Dual-emissive water-dispersible sulfur-doped carbon dots (S-CDs) were prepared through
simple heat treatment of canola oil as a carbon source. The S-CDs revealed excitation …

Reactivity of redox cycled Fe-bearing subsurface sediments towards hexavalent chromium reduction

ME Bishop, H Dong, P Glasser, BR Briggs… - … et Cosmochimica Acta, 2019 - Elsevier
Structural Fe (II) in clay minerals and natural sediments is known to reduce Cr (VI) to Cr (III),
but the effect of redox-cycled Fe-bearing natural sediments on Cr (VI) reduction kinetics is …

Effects of citrate on hexavalent chromium reduction by structural Fe (II) in nontronite

X Liu, H Dong, X Yang, L Kovarik, Y Chen… - Journal of hazardous …, 2018 - Elsevier
Previous studies have shown that organic ligands could influence Cr (VI) reduction by
aqueous Fe 2+ and pyrite. In this study, the effects of citrate on Cr (VI) reduction by structural …