考利尼特基酸盐纳米板的物理化学,硬化和能量表征作为沙夫兰基染料的潜在吸附剂:剥皮试剂和技术的作用和技术
Samar Mohamed Ali1,2, Reham A Mohamed1, Ahmed A Abdel-Khalek1
1Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.
Frontiers in chemistry
|November 4, 2024
概括
剥落的高化纳米酸盐板 (EXK) 显示了增强的沙夫兰素染料吸附. 由于表面积和活性点的改善,CTAB脱皮考利尼特 (C/EXK) 显示出最高的吸附能力.
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:
- 考利尼特是一种常见的粘土矿物质,具有作为吸附剂的潜力,但需要进行修改以提高其有效性.
- 先进的脱皮技术可以生产纳米酸盐板,用于吸附应用,具有改进的物理化学特性.
研究的目的:
- 为了研究不同脱皮剂 (尿素,KNO3,CTAB) 对考利尼特脱皮及其随后在沙夫兰素染料吸附中的表现的影响.
- 描述脱皮高岩 (EXK) 的纹理和表面特性,并将它们与吸附能力相关联.
主要方法:
- 使用尿素 (U/EXK),KNO3 (N/EXK) 和CTAB (C/EXK) 的考利尼特脱皮.
- 使用测定表面积,纹理特性和表面特征的技术,对去皮样本进行表征.
- 使用safranin染料进行吸附实验,随后进行数学建模和热力学调查.
主要成果:
- CTAB脱皮产生了最高的脱皮度,导致C/EXK的表面积为55.7m2/g.
- C/EXK 呈现出最高的萨法林染料吸收能力 (273.2 mg/g),显著超过了 N/EXK (231 mg/g) 和 U/EXK (178.4 mg/g).
- 吸附机制涉及物理,自发和外热过程,包括双极键,静电吸引力,范德瓦尔斯力和键.
结论:
- 先进的剥皮,特别是CTAB,通过增加表面积和活性部位,显著提高了考利尼特对沙夫兰素染料的吸附特性.
- 脱皮的高化纳米酸盐板 (EXK) 展示了一种有前途且有效的方法,用于从水溶液中去除沙夫兰素染料.
- 该研究提供了对吸附机制的见解,突出了表面化学和物理相互作用的作用.
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