Effective purification of arsenic (As)-contaminated soil and water remains an urgent task for
mankind. Biochar was applied to remove As due to its low price, easy preparation, and high …

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 …

Silicon (Si) is the main inorganic component in biochar, but its key role in pollutant removal
and the corresponding mechanisms are still unclear. In this study, rice husk and wood …

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 …

Biochar has been demonstrated as an efficient amendment for immobilizing contaminants.
However, a certain number of micro/nano-scale particles are inevitably present in the fresh …

A green method for production of activated carbon and combustible gas was introduced.
Without any external reagents and gases, the H 2 O and CO 2 produced by the pyrolysis of …

Migrating electric field-assisted electrocoagulation (MEAEC) is a three-electrode
electrochemical system, including waste flour-derived sponge biochar (SBC) as an …

Biochars can remove potentially toxic elements, such as inorganic mercury [Hg (II)] from
contaminated waters. However, their performance in complex water matrices is rarely …

Waste waterworks sludge and walnut shell were employed to synthesize a composite
catalyst consisting of Fe 0/Fe 3 O 4/biochar using a one-step pyrolysis process. The …

Iron coagulants have been used extensively in drinking water treatment. This typically
produces substantial quantities of insoluble iron hydrolysis products which interact with …