Three-Dimensional Porous Artemia Cyst Shell Biochar-Supported Iron Oxide Nanoparticles for Efficient Removal of Chromium from Wastewater DOI Creative Commons
Yu Gao, Ying D. Liu, Zhao Xu

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(8), P. 1743 - 1743

Published: April 13, 2025

Chromium-containing wastewater poses severe threats to ecosystems and human health due the high toxicity of hexavalent chromium (Cr(VI)). Although iron oxide nanoparticles (IONPs) show promise for Cr(VI) removal, their practical application is hindered by challenges in recovery reuse. Herein, a novel three-dimensional porous nanocomposite, Artemia cyst shell biochar-supported (ACSC@ IONP), was synthesized via synchronous pyrolysis Fe3+-impregnated shells (ACSs) situ reduction iron. The optimized composite C@Fe-3, prepared with 1 mol/L Fe3+ pyrolyzed at 450 °C 5 h, exhibited rapid removal equilibrium within 5–10 min both total (Cr(total)), attributed synergistic Cr(III) adsorption Cr(III). maximum Cr(total) capacity 110.1 mg/g pH 2, as determined Sips isothermal model heterogeneous adsorption. Competitive experiments demonstrated robust selectivity even under 64-fold excess competing anions, an interference order SO42− > NO3− Cl−. Remarkably, C@Fe-3 retained 65% efficiency after four adsorption–desorption cycles. This study provides scalable eco-friendly strategy fabricating reusable adsorbents dual functionality remediation.

Language: Английский

Efficient degradation of metronidazole by peroxodisulfate through triboelectric effect of water eddy: Electrocatalytic promotion of Fe3+/Fe2+ cycling DOI
Chengjie Xue,

Yifu Peng,

Zhanqiang Fang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161705 - 161705

Published: March 1, 2025

Language: Английский

Citations

2
Molecular selective fractionation of biochar-derived DOM in Fe Cr co-precipitation and post-adsorption systems: Its roles in carbon sequestration and Cr(III) immobilization DOI
Wei Zhou, Yuyao Li, Yun Liu

et al.

Desalination, Journal Year: 2025, Volume and Issue: unknown, P. 118672 - 118672

Published: Feb. 1, 2025

Language: Английский

Citations

1
Unveiling the distinctive characterization and adsorption behaviors of MnFe2O4 hydrochar/pyrochar composites for Cr(VI) removal DOI

Wentao Zou,

Fang Zhou,

Zheng Zhang

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116052 - 116052

Published: March 1, 2025

Language: Английский

Citations

1
Magnetic Fe-Mo Sulfide Heterostructures with Dual Active Sites for Efficient Decontamination of Cr(III)-Organic Complexes via Fenton-like Reaction DOI

Guiquan Che,

Wenjing Li, Zhihao Zhang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125083 - 125083

Published: Jan. 1, 2025

Language: Английский

Citations

0
Three-Dimensional Porous Artemia Cyst Shell Biochar-Supported Iron Oxide Nanoparticles for Efficient Removal of Chromium from Wastewater DOI Creative Commons
Yu Gao, Ying D. Liu, Zhao Xu

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(8), P. 1743 - 1743

Published: April 13, 2025

Chromium-containing wastewater poses severe threats to ecosystems and human health due the high toxicity of hexavalent chromium (Cr(VI)). Although iron oxide nanoparticles (IONPs) show promise for Cr(VI) removal, their practical application is hindered by challenges in recovery reuse. Herein, a novel three-dimensional porous nanocomposite, Artemia cyst shell biochar-supported (ACSC@ IONP), was synthesized via synchronous pyrolysis Fe3+-impregnated shells (ACSs) situ reduction iron. The optimized composite C@Fe-3, prepared with 1 mol/L Fe3+ pyrolyzed at 450 °C 5 h, exhibited rapid removal equilibrium within 5–10 min both total (Cr(total)), attributed synergistic Cr(III) adsorption Cr(III). maximum Cr(total) capacity 110.1 mg/g pH 2, as determined Sips isothermal model heterogeneous adsorption. Competitive experiments demonstrated robust selectivity even under 64-fold excess competing anions, an interference order SO42− > NO3− Cl−. Remarkably, C@Fe-3 retained 65% efficiency after four adsorption–desorption cycles. This study provides scalable eco-friendly strategy fabricating reusable adsorbents dual functionality remediation.

Language: Английский

Citations

0