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<p>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.</p>

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

  • 期刊论文

  • 发表日期：

    2026年4月17日

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  • Arash Javanmard,
  • Fathiah Mohamed Zuki,
  • Wan Mohd Ashri Wan Daud,
  • Muhamad Fazly Abdul Patah

摘要

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.