有色金属材料与工程2025，Vol.46Issue(6)：69-76,8.DOI:10.13258/j.cnki.nmme.20251029001
FeOOH/生物炭复合材料制备及光芬顿降解性能研究
Synthesis and photo-fenton performance of FeOOH/biochar composites
摘要
Abstract
A series of FeOOH/biochar composites were prepared by a facile in-situ deposition method,and their microstructure and morphology were further analyzed and characterized,confirming the successful synthesis of the samples.The UV-vis DRS spectra revealed that the introduction of biochar could significantly enhance visible-light absorption.The photo-Fenton catalytic degradation experiments of Rhodamine B(RhB)indicated that the FC-5 composite with a FeOOH/biochar mass ratio of 5%exhibited the best degradation efficiency,suggesting that an appropriate amount of carbon as a support facilitates the exposure of more iron active sites and thus promotes the photo-Fenton reaction.Moreover,visible-light irradiation had a relatively small impact on the reaction efficiency,and the degradation efficiency of RhB reached the optimum when the H2O2 concentration was 25 mmol/L and the solution pH was 3.Radical trapping experiments demonstrated that hydroxyl radicals were the main active species in the degradation process,while holes played a secondary role.After 3 cycles of use,the degradation efficiency of the composite only decreased by 10%,proving that it possesses excellent structural stability and reusability.关键词
FeOOH复合材料/改性生物炭/光芬顿/罗丹明BKey words
FeOOH composite/modified biochar/photo-Fenton/Rhodamine B分类
化学化工引用本文复制引用
李开文,刘浩然,王大伟,程文博,常飞..FeOOH/生物炭复合材料制备及光芬顿降解性能研究[J].有色金属材料与工程,2025,46(6):69-76,8.基金项目
国家重点研发计划项目(2024YFE0211700) （2024YFE0211700）
