Enhancement of U(VI) biosorption by Trichoderma harzianum mutant obtained by a cold atmospheric plasma jet
Enhancement of U(VI) biosorption by Trichoderma harzianum mutant obtained by a cold atmospheric plasma jet
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冷大气等离子体射流增强哈茨木霉突变体对 U(VI) 的生物吸附
DOI：
10.1007/s10967-021-07615-0
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发表时间：
2021-02
影响因子：
1.6
通讯作者：
Song wencheng
中科院分区：
文献类型：
--
作者：
Liang jun;Liu lei;Song wencheng
哈茨木霉（T. harzianum）从铀矿尾矿土壤中分离出来，并且一种冷大气等离子体射流作为一种诱变方法被应用于哈茨木霉的处理，以提高其对U(VI)生物吸附的性能。pH值的影响，……
Trichoderma harzianum (T. harzianum) was isolated from uranium mill tailing soils, and a cold atmospheric plasma jet as a mutational method was applied for the treatment of T. harzianum to improve its performance of U(VI) biosorption. The effects of pH, adsorption time and biosorbent doses were performed on the biosorption of U(VI) by T. harzianum and mutated T. harzianum at different environmental conditions. The maximum adsorbability for U(VI) on mutated T. harzianum was 83.59 mg/g at 303 K and pH 6.0, which was observably better than the raw T. harzianum. FTIR analysis indicated that the functional groups on the surface of mutated T. harzianum interacting with U(VI) were primarily hydroxyl, amino and carboxyl groups. SEM coupled with EDX analysis demonstrated that U(VI) can be adsorbed to mutated T. harzianum, and the surface of mutated T. harzianum became rough and incompact after the biosorption. This study showed that the mutated T. harzianum could be considered as a highly effective biosorbent for removal of U(VI) from radioactive wastewater.
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