Critical Review on Biochar‐Supported Catalysts for Pollutant Degradation and Sustainable Biorefinery,Advanced Sustainable Systems

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Critical Review on Biochar‐Supported Catalysts for Pollutant Degradation and Sustainable Biorefinery
Advanced Sustainable Systems ( IF 6.5 ) Pub Date : 2020-03-17 , DOI: 10.1002/adsu.201900149
Manish Kumar ₁ , Xinni Xiong ₁ , Yuqing Sun ₁ , Iris K. M. Yu ₁ , Daniel C. W. Tsang ₁ , Deyi Hou ₂ , Juhi Gupta ₃ , Thallada Bhaskar ₄ , Ashok Pandey ₅

Affiliation

Biochar (BC) is a material synthesized from biomass by thermochemical conversion. Physicochemical and functional properties of BCs can be enhanced by several methods of activation or functionalization. The activated and functionalized BCs with a large surface area and abundant surface functional groups can serve as effective catalysts or catalyst supports for various chemical transformations as well as for adsorption/sorption/enrichment of low‐concentration pollutant streams. Among them, remediation of environmental contaminants and production of a range of bioproducts in biorefineries have attracted much attention in the context of achieving green and sustainable development. Although the applications of BC as adsorbents in removal of pollutants have been discussed extensively, there is a lot of untapped potential with new applications of BCs as catalysts or catalyst supports for advanced oxidation processes (AOPs) and sustainable biorefineries. In this review, the production and activation/functionalization of BCs are scrutinized. The mechanisms of activated and functionalized BC and BC‐supported catalysts in degradation of organic contaminants via AOPs assisted with hydrogen peroxide (H₂O₂), peroxydisulfate (PDS), and peroxymonosulfate (PMS) are reviewed. Emerging applications of BC as catalyst for production of biodiesel and high‐value chemicals, tar removal, bio‐syngas reforming, and energy storage and conversion devices are discussed in detail.

中文翻译：

关于生物炭支持的污染物降解和可持续生物精炼催化剂的评论

生物炭（BC）是通过热化学转化从生物质合成的材料。BC的理化和功能特性可以通过多种激活或功能化方法来增强。具有大表面积和丰富表面官能团的活化和官能化BC可用作各种化学转化以及低浓度污染物流的吸附/吸附/富集的有效催化剂或催化剂载体。其中，在实现绿色可持续发展的背景下，环境污染的修复和生物精炼厂生产一系列生物产品引起了人们的广泛关注。尽管已经广泛讨论了BC作为吸附剂在去除污染物中的应用，BC的新应用作为高级氧化过程（AOP）和可持续的生物精炼厂的催化剂或催化剂载体，具有许多未开发的潜力。在这篇综述中，详细研究了BC的产生和激活/功能化。活化和功能化的BC和BC负载的催化剂通过过氧化氢（A）辅助AOP降解有机污染物的机理₂ O ₂），过氧二硫酸盐（PDS）和过氧一硫酸盐（PMS）进行了综述。详细讨论了BC在生产生物柴油和高价值化学品，焦油去除，生物合成气重整以及能量存储和转化装置的催化剂方面的新兴应用。

更新日期：2020-03-17

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