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多变量建模和过程优化Hg(II) 修复使用solvothermal合成2D MX/Fe₃O₄通过响应表面的方法:特征和机制研究研究

Pankaj D Indurkar^1,2, Savan K Raj^3,4, Vaibhav Kulshrestha^3,5

¹Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, India. pankajdi@csmcri.res.in.

Environmental science and pollution research international

|May 26, 2023

概括

磁性MXene (MX/Fe3O4) 纳米复合材料有效地从水中去除 (Hg(II)) 离子. 优化的条件实现了高的去除效率,证明了水净化应用的潜力.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
纳米技术纳米技术

背景情况:

二维MXene材料在各种应用中表现出独特的特性.
(Hg) 是水溶液中的有毒重金属污染物,需要有效的去除方法.

研究的目的:

为了合成和描述一种新的磁性MXene (MX/Fe3O4) 纳米复合材料.
为了研究MX/Fe3O4的吸附行为,从水溶液中去除Hg (II) 离子.
使用响应表面方法 (RSM) 来优化吸附参数.

主要方法:

MX/Fe3O4纳米复合材料的溶热合成.
使用RSM优化吸附剂剂量,时间,度和pH值.
吸附异温和运动研究 (雷德利希-彼得森,伪二阶模型).
差异分析 (ANOVA) 用于模型验证.

主要成果:

优化Hg(II) 清除条件:0.871g/L吸附剂剂量,103.6分钟,40.17mg/L度,pH6.5.
实验数据与二进制RSM模型之间的高度一致性.
吸附数据最适合于雷德利希-彼得森等温模型.
兰慕尔最大吸附能力为699.3 mg/g,与实验值非常接近.
吸附动力学遵循伪二阶模型 (R2 = 0.9983).

结论:

MX/Fe3O4纳米复合材料显示出作为一种有效的吸附剂,用于Hg(II) 离子去除的显著潜力.
开发的RSM模型准确地预测了消除的最佳条件.
该材料具有较高的吸附能力和有利于净化水的动力学.

关键词:

吸附方式吸附方式吸附方式这就是MXene MXene.磁性磁性是一种磁性.在纳米复合材料.响应表面方法响应表面方法

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