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耐候煤炭固定微生物材料作为一种高效的吸附剂,用于去除

Zile Jiao^1,2, Chunhua Gao^1,2, Jianhua Li^1,2

¹College of Resources and Environment, Shanxi Agricultural University, Taiyuan 030031, China.

Molecules (Basel, Switzerland)

|February 10, 2024

概括

经过气候变化的煤炭有效地固定了耐微生物,创造了一种材料 (JK-BW),可以从溶液中高度去除 (Pb2+). 这种固定材料在多种用途中表现出卓越的性能和稳定性.

科学领域:

环境科学环境科学
微生物学微生物学
材料科学材料科学材料科学

背景情况:

生物质木炭常用于固定微生物,但基于煤炭的资源未得到充分利用.
开发用于微生物固定的新型载体对于环境修复至关重要.

研究的目的:

为了使耐功能菌株不移动,使用耐候煤作为载体.
开发和优化耐候煤炭固定微生物材料 (JK-BW) 以有效去除 (Pb2+).

主要方法:

使用Box-Behnken方法优化JK-BW的吸附条件.
分析了Pb2+吸附机制,使用批量吸附/脱附,SEM-EDS,BET,FT-IR和XPS.

主要成果:

最佳条件:306K,吸附剂0.36g/L,初始Pb2+度为300mg/L. 最佳条件是306K,吸附剂0.36g/L,初始Pb2+度为300mg/L.
达到338.9mg/g的吸峰,比自由细胞高3.8倍.
材料在四个重复使用周期后保持了高容量.

结论:

经过气候变化的煤炭是微生物固定化的可行载体,可以产生高效的吸附剂.
Pb2+吸附包括化学吸附 (离子交换,复杂化) 和物理过程.
离子交换和复合是关键的机制,涉及矿物离子和功能组.

关键词:

吸附条件吸附条件吸附条件吸附机制是一种吸附机制.固定化的微生物材料.领导领导领导领导领导领导领导领导领导领导气候变化的煤炭

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