Surface Treatment of Biochar: Methods, Surface Analysis and Potential Applications. A Comprehensive Review

Marlena Gęca; Ahmed M. Khalil; Arvind K. Bhakta; Youssef Snoussi; Piotr Nowicki; Małgorzata Wiśniewska; Mohamed M. Chehimi

doi:10.20944/preprints202303.0353.v1

Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 18 March 2023 / Approved: 20 March 2023 / Online: 20 March 2023 (08:31:16 CET)

In the recent years, biochar has emerged as a remarkable biosourced material for addressing global environmental, agricultural, biomedical, and energy challenges. However, the performances of biochar rest in part on finely tuning its surface chemical properties, intended to obtain specific functionalities. In this review, we tackle surface treatment of biochar with silane and other coupling agents such as diazonium salts, titatantes, ionic/non-ionic surfactants, as well as nitrogen-containing (macro)molecules. We summarize the recent progress achieved mostly in the last five years, and correlate the nature and extent of functionalization to eye catchy end applications of the surface engineered biochar.

biomass conversion; thermochemical treatment; surface chemical modification; coupling agents; biochar implementation

Biology and Life Sciences, Toxicology

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Surface Treatment of Biochar: Methods, Surface Analysis and Potential Applications. A Comprehensive Review

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