Biochar for Sustainable Soil Management: A Review of Production Technologies, Functionalization Strategies, and Environmental Synergies

Document Type

Review

Publication Date

12-1-2026

Abstract

This study critiques the integration of biochar as a precision-engineered component in sustainable agriculture, shifting the narrative from a waste-management byproduct to a tunable chemical interface. Analyzing the soil-biochar matrix through the lens of a multi-phase catalytic reactor, we evaluate how nutrient flux and microbial dynamics are governed by adsorption kinetics and electron-transfer mechanisms. We specifically dissect the thermochemical variables, peak temperature and vapor residence time, that dictate the structural aromaticity and pore-size distribution of the resulting carbon scaffold. Furthermore, the review evaluates advanced functionalization pathways, such as mineral-organic doping and surface grafting, to overcome the inherent chemical limitations of raw char. By synthesizing the cross-functional benefits of carbon sequestration and greenhouse gas (GHG) suppression, we propose a “designer biochar” framework. This approach prioritizes site-specific soil configuration over uniform application, concluding with a critical assessment of the economic and energy-balance trade-offs required for industrial-scale deployment.

Keywords

Biofertilizers, Greenhouse gas emissions, Soil amendments, Soil ecosystems, Thermochemical conversion

Publication Title

Bioenergy Research

ISSN

1939-1234

DOI

10.1007/s12155-026-10995-4

Volume

19

Issue

1

Publisher

Springer

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