College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
School of Biology and Chemistry, Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, Minzu Normal University of Xingyi, Xingyi 562400, China.
Sci Total Environ. 2022 Aug 25;836:155421. doi: 10.1016/j.scitotenv.2022.155421. Epub 2022 Apr 25.
Biochar (BC) is a low-cost material rich in carbon, which is being used increasingly as a catalyst in persulfate-based advanced oxidation processes (PS-AOPs) for the remediation of groundwater and soil contaminated with organic compounds. In this work, a general summary of preparation methods and applications of various BC (i.e., pristine BC, magnetic BC, and chemically modified BC) in PS-AOPs is presented. Different influence factors (e.g., pH, anions, natural organic matter) for the degradation of organic compounds are discussed. Meanwhile, the influence of external energy (e.g., solar irradiation, UV-Vis, ultrasonic) is also mentioned. Furthermore, the advantage of different BC in PS-AOPs are compared. Finally, potential problems, challenges, and prospects in the application of biochar-persulfate based advanced oxidation processes (BCPS-AOPs) are discussed in the conclusion and perspective.
生物炭（BC）是一种富含碳的低成本材料，作为过硫酸盐基高级氧化工艺（PS-AOPs）中的催化剂，越来越多地用于修复受有机化合物污染的地下水和土壤。在这项工作中，对各种生物炭（即原始生物炭、磁性生物炭和化学改性生物炭）在 PS-AOPs 中的制备方法和应用进行了综合概述。讨论了影响有机化合物降解的不同影响因素（例如 pH 值、阴离子、天然有机物）。同时，还提到了外部能量（例如太阳辐射、UV-Vis、超声）的影响。此外，还比较了不同生物炭在 PS-AOPs 中的优势。最后，在结论和展望部分讨论了生物炭-过硫酸盐基高级氧化工艺（BCPS-AOPs）应用中的潜在问题、挑战和前景。
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