森林与环境学报2025，Vol.45Issue(3)：318-327,10.DOI:10.13324/j.cnki.jfcf.202411017
灵芝菌丝体改性材料对刚果红的吸附性能
Adsorption performance towards Congo red by modified Ganoderma lucidum mycelium-based materials
摘要
Abstract
A dye wastewater adsorbent(PMC)which is rich in sources,environmentally friendly,and renewable was prepared with Ganoderma lucidum mycelia as the substrate,which was treated with alkaline and grafted by polyethyleneimine(PEI).The changes of the chemical structure and microstructure after modification were explored by Fourier transform infrared spectroscopy(FTIR)and scanning electron microscopy(SEM),and the adsorption properties of PMC towards Congo red in the aqueous solution were investigated.The results showed that G.lucidum mycelia successfully underwent deacetylation and grafting with PEI.The SEM results indicated that the deacetylation and the grafting of PEI constructed a rough surface structure.The effects of pH value,adsorbent dosage,and temperature on the adsorption performance were studied.The results showed that under the PMC dosage of 10 mg,temperature of 30℃,and pH 5,the adsorption removal of Congo red at a concentration of 20 mg·L-1 reached 97.3%,which was 172%higher than that of unmodified mycelia.The isothermal adsorption behavior of PMC had the highest fitting degree with the Langmuir model,and the maximum adsorption capacity of PMC was 258 mg·g-1 obtained by fitting.The adsorption process conformed to the pseudo-second-order kinetic model.Thermodynamic analysis showed that the adsorption reaction was spontaneously endothermic.After 5 cycles of adsorption-desorption,the removal rate of PMC towards Congo red still reached 90.3%,which suggested that PMC exhibited good recyclable performance.关键词
菌丝体/聚乙烯亚胺/改性/刚果红/吸附/废水/染料Key words
mycelium/polyethyleneimine/modification/Congo red/adsorption/wastewater/dye分类
化学化工引用本文复制引用
高璐,李霄,吴慧,黄六莲,陈礼辉,张敏..灵芝菌丝体改性材料对刚果红的吸附性能[J].森林与环境学报,2025,45(3):318-327,10.基金项目
福州市科技重大专项"半导体湿电子化学品研发及废液高品级再生关键技术与产业化"(2023-ZD-008) （2023-ZD-008）
福建省科技重大专项"皮革废弃物制造高品质再生皮革关键技术与装备的研发及产业化"(2023YZ038001). （2023YZ038001）
