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一种新型生物炭-微藻复合物的对比作用对和的去除

Xiyan Jiang¹, Shuxi Zhang¹, Xixiang Yin²

¹Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China.

Ecotoxicology and environmental safety

|June 23, 2023

概括

一种新的生物炭-微藻复合物有效地吸附废水中的,与去除相比,其表现优越. 这种环保吸附剂利用丰富的功能组来进行强烈的复合和离子交换.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学化学化学

背景情况:

生物炭和藻类是重金属废水处理的公认环保吸附剂.
子活性炭 (Csac) 和藻形成了一个有前途的生物炭-微藻复合体.

研究的目的:

评估和比较Csac-Chlorella复合物对废水中的和的吸附能力.
阐明吸附机制,并确定涉及的关键功能组.

主要方法:

进行了吸附动力学研究,以评估随时间推移的去除效率.
福利埃变换红外光谱 (FTIR) 和X射线光电子光谱 (XPS) 分析了吸附剂的表面特性.
测量重金属度以确定吸附能力.

主要成果:

生物炭-微藻复合体对的吸附效率显著更高 (最初高74.84%,在平衡状态下高71.62%),而不是的吸附效率.
该复合物在100μg·L-1度下吸附了高达46.8μg·g-1的.
在吸附剂表面上丰富的含氧功能组 (-COOH, -OH, C-O-C) 通过离子交换和复合促进了吸附.

结论:

生物碳微藻复合体Csac-Chlorella表现出优异的吸附能力和性能,可以从废水中去除.
主要以离子形式存在的,由于静电排斥,显示出弱吸附.
复合体的吸附遵循基于单分子层理论的化学吸附,表明强大的结合.

关键词:

藻类藻类是一种藻类.亚是一种.生物炭是一种生物炭.化学吸收化学吸收水星水星水星水星水星

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