Articles with "cr6" as a keyword



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Synthesis of g-C3N4/NiO p–n heterojunction materials with ball-flower morphology and enhanced photocatalytic performance for the removal of tetracycline and Cr6+

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Published in 2019 at "Journal of Materials Science"

DOI: 10.1007/s10853-019-03692-5

Abstract: A novel three-dimensional ball-flower-like g-C3N4/NiO (GN) photocatalyst was firstly fabricated by a simple two-step calcination method for enhanced degradation capability. Our investigation focuses on the construction of p–n heterojunction and specific ball-flower-like structure to overcome… read more here.

Keywords: removal; ball flower; cr6; c3n4 nio ... See more keywords
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Noble metal-free MoS2-modified In2S3 for excellent visible-NIR-light-driven photocatalytic of Cr6+ removal in alkaline wastewater

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Published in 2020 at "Journal of Nanoparticle Research"

DOI: 10.1007/s11051-020-05057-5

Abstract: MoS2-modified In2S3 (x wt.%MoS2-In2S3) samples (0 ≤ x ≤ 20) were fabricated through a facile one-pot hydrothermal process. All In2S3 samples modified by MoS2 deliver an excellent Cr6+ removal ability under visible-NIR-light-driven, and 5% MoS2-In2S3 can reduce 20 mg/L… read more here.

Keywords: mos2 modified; in2s3; cr6 removal; mos2 ... See more keywords
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Surface Water Pollution in the Middle Chinese Loess Plateau with Special Focus on Hexavalent Chromium (Cr6+): Occurrence, Sources and Health Risks

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Published in 2020 at "Exposure and Health"

DOI: 10.1007/s12403-020-00344-x

Abstract: Due to the combined influence of unique natural environment and increasing human activities, water quality in the Chinese Loess Plateau is deteriorating. Hexavalent chromium (Cr6+) contamination is a critical water environmental issue in the loess… read more here.

Keywords: surface water; water; river; cr6 ... See more keywords
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Colorimetric detection of Cr6+ ions based on surface plasma resonance using the catalytic etching of gold nano-double cone @ silver nanorods.

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Published in 2021 at "Analytica chimica acta"

DOI: 10.1016/j.aca.2020.12.016

Abstract: Hexavalent chromium ion (Cr6+) is highly toxic to human health and environment. Herein, high-performance detection of Cr6+ is of great import. In this study, a rapid and sensitive multicolor colorimetric method for detection of Cr6+… read more here.

Keywords: ndc nrs; detection; detection cr6; etching gold ... See more keywords
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Comparative behavior of two gram positive Cr6+ resistant bacterial strains Bacillus aerius S1 and Brevibacterium iodinum S2 under hexavalent chromium stress

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Published in 2019 at "Biotechnology Reports"

DOI: 10.1016/j.btre.2019.e00307

Abstract: Highlights • B. aerius S1 and B. iodinum S2 could tolerate Cr6+ upto 30 and 35 mM.• Both strains showed promising potential to reduce 99% Cr6+ within 6 days from tannery effluent.• FTIR and EDX analysis… read more here.

Keywords: two gram; comparative behavior; iodinum; stress ... See more keywords
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Hexavalent chromium amplifies the developmental toxicity of graphene oxide during zebrafish embryogenesis.

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Published in 2020 at "Ecotoxicology and environmental safety"

DOI: 10.1016/j.ecoenv.2020.111487

Abstract: Combined toxicity is a critical issue in risk assessment of contaminants. However, very little is known about the joint effects of graphene oxide (GO, a crucial 2-dimensional carbon material) and hexavalent chromium (Cr6+, a widespread… read more here.

Keywords: toxicity; graphene oxide; hexavalent chromium; cr6 ... See more keywords
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Reductive transformation of hexavalent chromium by ferrous ions in a frozen environment: Mechanism, kinetics, and environmental implications.

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Published in 2021 at "Ecotoxicology and environmental safety"

DOI: 10.1016/j.ecoenv.2020.111735

Abstract: The transformation between hexavalent chromium (Cr6+) and trivalent chromium (Cr3+) has a significant impact on ecosystems, as Cr6+ has higher levels of toxicity than Cr3+. In this regard, a variety of Cr6+ reduction processes occurring… read more here.

Keywords: cr6 fe2; reductive transformation; transformation; cr6 ... See more keywords
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Application of enhanced bioreduction for hexavalent chromium-polluted groundwater cleanup: Microcosm and microbial diversity studies.

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Published in 2020 at "Environmental research"

DOI: 10.1016/j.envres.2020.109296

Abstract: Hexavalent chromium (Cr6+) is a commonly found heavy metal at polluted groundwater sites. In this study, the effectiveness of Cr6+ bioreduction by the chromium-reducing bacteria was evaluated to remediate Cr6+-contaminated groundwater. Microcosms were constructed using… read more here.

Keywords: hexavalent chromium; bioreduction; cr6; polluted groundwater ... See more keywords
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Development of an adsorbent via chitosan nano-organoclay assembly to remove hexavalent chromium from wastewater.

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Published in 2017 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2016.09.111

Abstract: This study involves nano-biocomposite (chitosan-nanoclay composite, CNC) preparation using solvent casting method with chitosan and organoclay (Cloisite 20A) and investigation of Cr6+ ion adsorption. The influence of contact time, solution pH, initial metal concentration, concentration… read more here.

Keywords: organoclay; adsorbent via; adsorption; development adsorbent ... See more keywords
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Novel identification of ultraviolet/visible Cr6+/Cr3+ optical transitions in borate glasses

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Published in 2018 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2018.03.351

Abstract: Abstract Chromium oxide-doped borate glasses with composition xP2O5-(70-x) B2O3- 29.5Li2O-0.5 Cr2O3 (x = 0.0, 0.5, 1.0, 1.2, 1.5 and 2.0 mol %) were prepared following the melt quenching technique. A detailed deconvolution process, applied to their optical absorption… read more here.

Keywords: optical transitions; cr6 cr3; cr6; ultraviolet visible ... See more keywords
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Photo catalytic reduction of Cr6+ by ZnO decorated on reduced graphene oxide (rGO) Nanocomposites

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Published in 2020 at "Materials Research Bulletin"

DOI: 10.1016/j.materresbull.2019.110705

Abstract: Abstract ZnO decorated rGO nanocomposites (ZnO∙x% rGO NC (x = 1, 5, 10, 15, 20 and 25)) were fabricated using hydrothermal method. Elemental mapping of Zn ions on the surface of ZnO∙rGO were distributed over… read more here.

Keywords: reduction; zno decorated; rgo; zno ... See more keywords