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Biohybrid nanofibers containing manganese oxide–forming fungi for heavy metal removal from water
Journal of Engineered Fibers and Fabrics ( IF 2.9 ) Pub Date : 2020-01-01 , DOI: 10.1177/1558925019898954
Yaewon Park 1 , Shuang Liu 2 , Terrence Gardner 2 , Drake Johnson 3 , Aaron Keeler 3 , Nathalia Ortiz 3 , Ghada Rabah 3 , Ericka Ford 1
Affiliation  

Manganese-oxidizing fungi support bioremediation through the conversion of manganese ions into manganese oxide deposits that in turn adsorb manganese and other heavy metal ions from the environment. Manganese-oxidizing fungi were immobilized onto nanofiber surfaces to assist remediation of heavy metal–contaminated water. Two fungal isolates, Coniothyrium sp. and Coprinellus sp., from a Superfund site (Lot 86, Farm Unit #1) water treatment system were incubated in the presence of nanofibers. Fungal hyphae had strong association with nanofiber surfaces. Upon fungal attachment to manganese chloride–seeded nanofibers, Coniothyrium sp. catalyzed the conformal deposition of manganese oxide along hyphae and nanofibers, but Coprinellus sp. catalyzed manganese oxide only along its hyphae. Fungi–nanofiber hybrids removed various heavy metals from the water. Heavy metal ions were adsorbed into manganese oxide crystalline structure, possibly by ion exchange with manganese within the manganese oxide. Hybrid materials of fungal hyphae and manganese oxides confined to nanofiber-adsorbed heavy metal ions from water.

中文翻译:

含有氧化锰形成真菌的生物杂化纳米纤维用于去除水中的重金属

锰氧化真菌通过将锰离子转化为氧化锰沉积物,进而从环境中吸附锰和其他重金属离子来支持生物修复。锰氧化真菌被固定在纳米纤维表面上,以帮助修复受重金属污染的水。两种真菌分离株,Coniothyrium sp。来自 Superfund 站点(Lot 86,Farm Unit #1)水处理系统的 Coprinellus sp. 和 Coprinellus sp. 在纳米纤维的存在下孵育。真菌菌丝与纳米纤维表面有很强的联系。当真菌附着在氯化锰种子纳米纤维上时,Coniothyrium sp。催化氧化锰沿菌丝和纳米纤维的保形沉积,但 Coprinellus sp。仅沿其菌丝催化氧化锰。真菌-纳米纤维混合物从水中去除了各种重金属。重金属离子被吸附到氧化锰晶体结构中,可能是通过与氧化锰中的锰进行离子交换。真菌菌丝和锰氧化物的混合材料被限制在纳米纤维吸附水中的重金属离子上。
更新日期:2020-01-01
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