Modified and pristine biochars for remediation of chromium contamination in soil and aquatic systems

A El-Naggar, A Mosa, N Ahmed, NK Niazi, B Yousaf… - Chemosphere, 2022 - Elsevier
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 …

Application of biochars in the remediation of chromium contamination: Fabrication, mechanisms, and interfering species

C Zheng, Z Yang, M Si, F Zhu, W Yang, F Zhao… - Journal of Hazardous …, 2021 - Elsevier
Chromium (Cr) is one of the most toxic pollutants that has accumulated in terrestrial and
aqueous systems, posing serious risks towards living beings on a worldwide scale. The …

Characteristics and applications of biochar for remediating Cr (VI)-contaminated soils and wastewater

S Xia, Z Song, P Jeyakumar, N Bolan… - … geochemistry and health, 2020 - Springer
Chromium (Cr) is a common environmental contaminant due to industrial processes and
anthropogenic activities such as mining of chrome ore, electroplating, timber treatment …

Distinct chromium removal mechanisms by iron-modified biochar under varying pH: Role of iron and chromium speciation

L Liu, P Sun, Y Chen, X Li, X Zheng - Chemosphere, 2023 - Elsevier
Iron-modified biochar (Fe-biochar) has been widely developed to attenuate Cr (VI) pollution
in both acid and alkaline environments. However, there are few comprehensive studies on …

Biochar as a multifunctional agent for aqueous chromium removal: A critical review of governing mechanisms, targeted syntheses, influencing factors, and practical …

M Zhong, Q Zhang, M Li, AM Abodif, T Ming… - Chemical Engineering …, 2023 - Elsevier
Biochar has caught much attention owing to its excellent characteristics and prominent
performance in the treatment of various contaminants. Many studies have demonstrated that …

Enhanced removal of Cr (VI) by biochar with Fe as electron shuttles

J Xu, Y Yin, Z Tan, B Wang, X Guo, X Li, J Liu - Journal of Environmental …, 2019 - Elsevier
Biochar is extensively used as an effective soil amendment for environmental remediation.
In addition to its strong contaminant sorption capability, biochar also plays an important role …

Engineered/designer biochar for contaminant removal/immobilization from soil and water: potential and implication of biochar modification

AU Rajapaksha, SS Chen, DCW Tsang, M Zhang… - Chemosphere, 2016 - Elsevier
The use of biochar has been suggested as a means of remediating contaminated soil and
water. The practical applications of conventional biochar for contaminant immobilization and …

Enhancement of chromate reduction in soils by surface modified biochar

S Mandal, B Sarkar, N Bolan, YS Ok, R Naidu - Journal of Environmental …, 2017 - Elsevier
Chromium (Cr) is one of the common metals present in the soils and may have an extremely
deleterious environmental impact depending on its redox state. Among two common forms …

Removal of hexavalent chromium via biochar-based adsorbents: State-of-the-art, challenges, and future perspectives

R Sinha, R Kumar, P Sharma, N Kant, J Shang… - Journal of …, 2022 - Elsevier
Chromium originates from geogenic and extensive anthropogenic activities and significantly
impacts natural ecosystems and human health. Various methods have been applied to …

Functionalized biochars: Synthesis, characterization, and applications for removing trace elements from water

Y Hamid, L Liu, M Usman, R Naidu, M Haris… - Journal of Hazardous …, 2022 - Elsevier
Biochar (BC) has been recognized as an effective adsorbent to remove trace elements (TEs)
from water. However, low surface functionality and small pore size can limit the adsorption …