Electroactive Fe-biochar has attracted significant attention for As (III)/Cr (VI) immobilization
through redox reactions, and its performance essentially lies in the regulation of various …

Fe-based materials have been widely used for removing Cr (VI) and As (III) in wastewater,
however, the quantitative understanding of their removal mechanism and functions of Fe is …

This study introduced a new approach for simultaneously enhancing Cr (VI) removal
performance and mitigating release of dissolved Fe during nanoscale zero-valent iron (nZVI) …

Chromium (Cr), especially in forms of hexavalent chromium (Cr (VI)) remains a serious
threat to public health and environmental safety for its high toxicity. Herein, two types of iron …

Tailored manipulation of iron speciation has become a critical challenge for the further
development of Fe-biochar as an economical and eco-friendly amendment for arsenic (As) …

Electron transfer mediated by iron minerals is considered as a critical redox step for the
dynamics of pollutants in soil. Herein, we explored the reduction process of Cr (VI) with …

Metal-biochar composite is considered as a promising alternative for future carbocatalysis in
environmental decontamination. Nevertheless, unavoidable metal leaching impedes its …

Chromium (Cr) contamination in soil and water poses high toxicity risks to organisms and
threatens food and water security worldwide. Biochar has emerged as a promising material …

The dense surface passivation layer on zero-valent iron (ZVI) restricts its efficiency for water
decontamination, causing a poor economy and waste of resources. Herein, we found that …

New biochar-based materials were synthesized via iron salt loading on biochar (derived
from bamboo and poplar) or activated biochar and were used for Cr (VI) removal from …