Can I read “Soil for Soil Remediation” Strategy Driven on Converting Natural Soils into Fe~2~O~3~-CAN-Type Zeolite Composites for Dual Ionic Heavy Metal-Contaminated Soil Remediation: Universality, Synergistic Effects, and Mechanism on EtoBox?

“Soil for Soil Remediation” Strategy Driven on Converting Natural Soils into Fe~2~O~3~-CAN-Type Zeolite Composites for Dual Ionic Heavy Metal-Contaminated Soil Remediation: Universality, Synergistic Effects, and Mechanism by Dazhong Yang; Qiuyue Ge; Xuezhen Feng; Ranhao Wang; Shangying Li; Wenfei Wei; Renji Zheng; Juan Zhang; Hong Chen is a Environmental Science article available to read on EtoBox.

What is “Soil for Soil Remediation” Strategy Driven on Converting Natural Soils into Fe~2~O~3~-CAN-Type Zeolite Composites for Dual Ionic Heavy Metal-Contaminated Soil Remediation: Universality, Synergistic Effects, and Mechanism about?

Herein, we developed a universal "soil for soil remediation" strategy to utilize soil resources for cation-/aniontype heavy-metal-contaminated soil remediation. The representative natural soils fetched from 12 different areas in China have been universally converted into Fe 2 O 3 -CAN (hydroxycancrinite) zeolite composite materials. Furthermore, we discover that due to the presence of exchangeable Na + and OH − in CAN channels together with the intrinsic surface adsorption function of Fe 2 O 3 -CAN, Fe 2 O 3 -CAN holds distinctive cation/anion dual ion-exchange functions and strong adsorption capacity, which could synergistically remediate cation-/anion-type HM-contaminated soil. When 25 g/kg Fe 2 O 3 -CAN is added into Cd/As polluted soil (100−200 ppm), Cd 2+ and AsO 2 − in soil could be immobilized simultaneously and the Cd/As bioaccumulation in the harvested vegetables is dramatically suppressed with reduction ratios of 48.1−67.0%, effectively reducing the HM enrichment in the phytosphere. Overall, this work confirms the high universality of Fe 2 O 3 -CAN synthesis using different types of natural soils and demonstrates that the as-synthesized Fe 2 O 3 -CAN composite material ca

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Author

Dazhong Yang; Qiuyue Ge; Xuezhen Feng; Ranhao Wang; Shangying Li; Wenfei Wei; Renji Zheng; Juan Zhang; Hong Chen

Publisher

American Chemical Society (ACS)

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)