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从多种染料混合物中选择性阴离子染料吸附,使用来自甘袋灰的改性纳米颗粒

Oraya Dokkathin¹, Parichart Onsri², Piyatida Thaveemas²

¹Division of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand.

|October 6, 2025

概括

底部甘袋灰 (BSBA) 用于制造纳米颗粒 (SiO2NPs@CTAB) 以有效去除离子染料. 这种可持续的方法利用工业废物进行高效的水净化.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
纳米技术纳米技术

背景情况:

甘底部包灰 (BSBA) 是一种富含的工业副产品.
BSBA具有开发新型吸附材料的潜力.
从废水中有效地去除离子染料是一个环境挑战.

研究的目的:

从BSBA中合成二氧化纳米粒子 (SiO2NPs).
通过修改表面电荷来增强阳离子染料的吸附能力.
为了评估合成材料在去除各种阴离子染料中的性能.

主要方法:

使用Sol-gel合成方法从BSBA中产生SiO2NPs.
乙三甲基化物 (CTAB) 用于修改SiO2NPs.的表面电荷.
在各种染料系统中使用甲蓝,甲,刚果红和反应色16进行了吸附实验.

主要成果:

SiO2NPs@CTAB显示了表面电荷的反转,从 -28.96 到 +12.06 mV.
阳离子染料的高吸附能力是135.81毫克g-1 (MO),159.76毫克g-1 (CR) 和135.59毫克g-1 (RO16).
该材料对阴离子染料具有较高的选择性,而不是阴离子染料.

结论:

从BSBA合成的SiO2NPs在去除阳离子染料方面具有高度有效性和选择性.
BSBA 是一种可持续且具有成本效益的纳米颗粒生产来源.
这种方法通过利用工业废物进行水处理,为环境带来好处.

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