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  Enhancing Phytoremediation with Ferrate-Modified Biochar for Petroleum and Zinc Co-Contaminated Soil

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  Biochar with KMnO4-Hematite Modification Promotes Foxtail Millet Growth by Alleviating Soil Cd and Zn Biotoxicity

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  Metal-Impregnated Biochar Boosts Conversion of Waste Motor Oil into Diesel-Like Fuel

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  Biochar Nanocomposites: Enhancing Cement Performance for Sustainable Construction