Manganese oxide-modified biochar: production, characterization and applications for the removal of pollutants from aqueous environments - a review

Citation:
Manganese oxide-modified biochar: production, characterization and applications for the removal of pollutants from aqueous environments - a review, Shaheen, Sabry M., Natasha, Mosa Ahmed, El-Naggar Ali, Faysal Hossain Md, Abdelrahman Hamada, Niazi Nabeel Khan, Shahid Muhammad, Zhang Tao, Tsang Yiu Fai, et al. , Bioresource Technology, 2022, Volume 346, p.126581, (2022) copy at www.tinyurl.com/y398d39d

Abstract:

The development of manganese (Mn) oxides (MnOx) modified biochar (MnOBC) for the removal of pollutants from water has received significant attention. However, a comprehensive review focusing on the use of MnOBC for the removal of organic and inorganic pollutants from water is missing. Therefore, the preparation and characterization of MnOBC, and its capacity for the removal of inorganic (e.g., toxic elements) and organic (e.g., antibiotics and dyes) from water have been discussed in relation to feedstock properties, pyrolysis temperature, modification ratio, and environmental conditions here. The removal mechanisms of pollutants by MnOBC and the fate of the sorbed pollutants onto MnOBC have been reviewed. The impregnation of biochar with MnOx improved its surface morphology, functional group modification, and elemental composition, and thus increased its sorption capacity. This review establishes a comprehensive understanding of synthesizing and using MnOBC as an effective biosorbent for remediation of contaminated aqueous environments.

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