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乌兰离子从水溶液中通过可溶可再生多糖的生物吸收

Oshrat Levy-Ontman¹, Ofra Paz-Tal², Yaron Alfi¹

¹Department of Chemical Engineering, Shamoon College of Engineering Basel/Bialik Sts. Beer-Sheva 8410001 Israel oshrale@sce.ac.il +972-8-6475636.

|December 11, 2023

概括

自然的多糖有效地从水中吸附乌拉尼尔离子. 赞坦显示出最高的效率,在较低的酸度和较高的多糖合物比率下,吸附性得到改善. 确认与功能组的相互作用.

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:

重金属污染,特别是烯离子,对环境构成风险.
自然的多糖为污染物清除提供了环保的替代品.
聚糖体对乌兰离子的吸附是一种有前途的补救策略.

研究的目的:

评估不同天然多糖在从水溶液中去除乌拉尼尔离子的效率.
为了研究pH值和剂与酸盐比对乌兰离子吸附的影响.
描述乌拉尼尔离子和多糖的功能组之间的相互作用.

主要方法:

使用香糖,卡帕,IOTA和瓜尔与乙酸溶液的吸附实验.
不同的参数,如酸度和多糖度.
使用富里埃变换红外光谱 (FTIR),扫描电子显微镜用能量分散式X射线光谱 (SEM-EDS) 和热重力测量分析 (TGA) 的分析.
粘度测量测量以评估多糖溶液性质的变化.

主要成果:

吸附效率顺序:桑坦 > 卡帕 > 约塔/瓜尔.
最佳条件包括较低的酸度和较高的多糖和离子比率.
FTIR,SEM-EDS和TGA证实了的存在和与功能组的相互作用.
乌兰离子的添加降低了多糖溶液粘度和粘弹性模块 (G',G'').

结论:

天然的多糖是有效的和环保的吸附剂,可以去除乌兰离子.
与其他经过测试的多糖相比,桑坦糖表现优越.
这项研究提供了关于吸附机制的见解,以及在乌兰离子复合时在多糖化物溶液中引起的物理变化.

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