Comigration Behavior of Cr(VI) and Microplastics and Remediation of Microplastics-Facilitated Cr(VI) Transportation in Saturated Porous Media DOI Open Access
Zijiang Yang,

Yuheng Ma,

Qi Jing

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3271 - 3271

Published: Nov. 24, 2024

The study of the co-transport Cr(VI) and microplastics (MPs) in porous media is important for predicting migration behavior achieving pollution removal natural soils groundwater. In this work, effect MPs on saturated was investigated at different ionic strengths (ISs) pHs. results showed that pH 7 low IS (5 mM), respectively, promoted movement Cr(VI), which further by presence MPs. Derjaguin-Landau-Verwey-Overbeek (DLVO) repulsive energy barrier between quartz sand decreased with increasing decreasing pH, retention constrained competition adsorption sites surface sand, thus facilitating enhanced while behaved conversely. Sodium alginate/nano zero-valent iron-reduced graphene oxide (SA/NZVI-rGO) gel beads could achieve through a π-π interaction, hydrogen bonding, electrostatic attraction, but would be reduced 40% due to competitive Cr(VI). Notably, 97% still achieved Therefore, can used as permeation reaction inhibit MP-induced high breakthrough curves reactive were well-fitted two-site chemical nonequilibrium model. Overall, findings work contribute understanding provide theoretical basis remediation groundwater contaminated

Language: Английский

Cu/Cu2O/NH2-MIL-88B (Fe) heterojunction as the photocatalyst to remove hexavalent chromium heavy metal ions in water DOI Creative Commons
Chunhua Xu

RSC Advances, Journal Year: 2025, Volume and Issue: 15(4), P. 2462 - 2469

Published: Jan. 1, 2025

Cu/Cu 2 O/NH -MIL-88B (Fe) heterojunction material under the condition of pH = 2, ethanol as a sacrificial agent, dark adsorption for 60 min, photocatalytic reduction 150 rate Cr( vi ) was 96.3%.

Language: Английский

Citations

0
Reduction-Stabilization Characteristics, Long-term stability and Biotoxicity evaluation of Fe(II)/Al Layered Double Hydroxides on Cr(VI) in Contaminated Soil DOI
Xiao Tan, Qi Liu, Yanqi Li

et al.

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 126122 - 126122

Published: March 1, 2025

Language: Английский

Citations

0
Enhanced immobilization mechanisms and transport of simulated acid rain on chromium in contaminated soil mixed with nZVI/Ni DOI
Fang Zhu, Junxiang Liu, Tao Liu

et al.

Environmental Geochemistry and Health, Journal Year: 2025, Volume and Issue: 47(5)

Published: April 10, 2025

Language: Английский

Citations

0
Study on the Interaction Effect of Heavy Metal Cadmium in Soil–Plant System Controlled by Biochar and Nano-Zero-Valent Iron DOI Open Access
Jiarui Wang,

R. Cai,

Hu Zhang

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(9), P. 4373 - 4373

Published: May 4, 2025

The accumulation of heavy metal cadmium (Cd) in farmland soil edible parts crops seriously threatens plant growth, human health, and even the global ecological environment. Finding stabilization remediation technology is an important means to treat Cd-contaminated soil. This study comprehensively evaluated synergistic effects independent or combined application biochar (BC) (10, 30 g kg−1) nano zero-valent iron (nZVI) (0.1% w/w) on properties morphological physiological traits pakchoi (Brassica rapa L. subsp. chinensis) under Cd (1, 3 mg stress by pot experiments. It was shown that toxicity negatively affected properties, reduced biomass total chlorophyll content, increased oxidative levels. On contrary, BC (30 nZVI (0.1%, shoot from 0.78 mg·kg−1 0.11 mg·kg−1, which lower than limit standard leafy vegetables (0.20 GB 2762-2017 “National Food Safety Standard”. Compared with control, treatment group achieved a 61.66% increase 105.56% content. At same time, activities catalase (CAT) superoxide dismutase (SOD) 34.86% 44.57%, respectively, content malondialdehyde (MDA) decreased 71.27%. In addition, alone g·kg−1) pH value 0.43 units organic carbon (SOC) 37.82%. Overall, effect helped restore homeostasis inhibit biotoxicity Cd, provided new option for crop mitigation.

Language: Английский

Citations

0
Adsorption and reduction of Cr(VI) by C-P-O groups in biochar: performance and mechanisms DOI
Xian Xiao,

Feiyan Zhou,

Chenyu Yang

et al.

Solid State Sciences, Journal Year: 2024, Volume and Issue: unknown, P. 107815 - 107815

Published: Dec. 1, 2024

Language: Английский

Citations

3
Migration and Availability of Ni and Cd in Industrial Soils Under Different Leaching Conditions: Insights from DGT and DIFS Models DOI

Danxing Yang,

Wen Fang, Hao Zhang

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 135863 - 135863

Published: Sept. 26, 2024

Language: Английский

Citations

1
Comigration Behavior of Cr(VI) and Microplastics and Remediation of Microplastics-Facilitated Cr(VI) Transportation in Saturated Porous Media DOI Open Access
Zijiang Yang,

Yuheng Ma,

Qi Jing

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3271 - 3271

Published: Nov. 24, 2024

The study of the co-transport Cr(VI) and microplastics (MPs) in porous media is important for predicting migration behavior achieving pollution removal natural soils groundwater. In this work, effect MPs on saturated was investigated at different ionic strengths (ISs) pHs. results showed that pH 7 low IS (5 mM), respectively, promoted movement Cr(VI), which further by presence MPs. Derjaguin-Landau-Verwey-Overbeek (DLVO) repulsive energy barrier between quartz sand decreased with increasing decreasing pH, retention constrained competition adsorption sites surface sand, thus facilitating enhanced while behaved conversely. Sodium alginate/nano zero-valent iron-reduced graphene oxide (SA/NZVI-rGO) gel beads could achieve through a π-π interaction, hydrogen bonding, electrostatic attraction, but would be reduced 40% due to competitive Cr(VI). Notably, 97% still achieved Therefore, can used as permeation reaction inhibit MP-induced high breakthrough curves reactive were well-fitted two-site chemical nonequilibrium model. Overall, findings work contribute understanding provide theoretical basis remediation groundwater contaminated

Language: Английский

Citations

1