微生物辅助构筑过渡金属硫化物及其电苏顿降解废弃聚酯塑料的研究

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中图分类号：X705 文献标识码：B 文章编号：1004-8901（2025）02-0008-06

Research on the Microbial-assisted Construction of Transition Metal Sulfides and TheirElectro-FentonDegradationofWastePolyesterPlastics

YEZhi-yong，HUANG Xiao-fen，HUXiang-long，YANGHuan （KeyLaboratoryofPlasmaChemistryandNewMaterialsofHubeiProvince，SchoolofMaterialScienceandEngineering， WuhanInstituteofTechnology，WuhanHubei430205，China）

AbstractSulfatereducigbacteriaaresedtoorodeonfomtofoferroussulfdeFSasteelectrocemcalaodetoostructne lectro-Fenton system.With the additionof hydrogen peroxide，this system can generate hydroxyl radicals （⋅OH） under the catalysis of Fe2+ therebydegradingpolyethyleneglycolterephthalate（ET.ThemorhologyandcompositionofFeSforedyonfoamcorosionviasulfate reducingbacteriaarelyedtouhfeldissosangeletoncrospX-rdiractioalysisndX-aotoeeos troscopyTheresultsshowthatuniformFeSlayersgrowinsituonthesurfaceofthecorodedelectrode.Thepresenceoferrousionsonthe surface of the film is conducive to the generation and activationof hydroxylradicals.With acurrent of -150mA/cm2 ，a ΔpH value of 3，anda hydrogen peroxide concentration of 0.5mol/L ，the degradation rate of PET could reach 37.2%±0.6% .Through the quenching test and electron paramagnetic resonance test，it is determined that ⋅⋅ OH is the main active species in the reaction，and the electro-Fenton degradation of PET involves cracking of C-C and C=0 bonds.This unveils a microbial corrosion strategy for preparing electrodes for electro-Fenton degradation of PET，and provides a new approach to solving plastic pollution.

Keywords：microbial corrosion；electro-Fenton；polyethylene glycol terephthalate；degradation doi：10.3969/j.issn.1004-8901.2025.02.002

自20世纪50年代以来，全球塑料产量逐年递增[]。（剩余11838字）