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从皮和枣中提取的TiO₂修饰活性碳从水中吸附铜:响应表面方法优化

Roya Sadat Neisan¹, Noori M Cata Saady¹, Carlos Bazan²

¹Department of Civil Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada.

|November 29, 2023

概括

从皮和枣种子中改造的活性碳,增强了二氧化纳米颗粒,有效地从水中去除铜离子. 这种环保吸附剂具有高的去除率和容量,为净化水提供了可持续的解决方案.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
水处理处理水的方法

背景情况:

水生环境中的铜 (Cu) 污染带来了重大风险.
对于重金属而言,传统的水处理方法可能昂贵且低效.
来自农业废物的活性炭提供了可持续的吸附剂前体.

研究的目的:

为了评估从皮 (OP) 和枣种子 (DS) 中修饰活性炭 (AC) 的铜离子去除效率.
调查二氧化纳米颗粒 (TiO2 NPs) 修饰对交流特性和吸附性能的影响.
使用响应表面方法 (RSM) 来优化吸附条件.

主要方法:

来自皮 (AC-OP) 和枣种子 (AC-DS) 的活性炭被合成.
AC-OP和AC-DS被修改为TiO2NP,其重量比例为1:10%.
使用RSM与中央复合设计 (CCD) 进行批量吸附实验,以优化pH值,初始度,吸附剂剂量和接触时间.

主要成果:

TiO2 NP修改显著增加了AC-OP和AC-DS的表面积.
确定了TiO2修饰AC-OP (OP-TiO2) 和AC-DS (DS-TiO2) 的最佳条件,实现了高的Cu去除效率 (分别为99.90%和97.40%).
伪二次运动模型最好地描述了吸附过程,表明化学吸附.

结论:

来自皮和枣的TiO2-修饰活性碳是铜离子的高效吸附剂.
该研究表明,农业废弃物衍生材料在环境修复方面得到了成功的应用.
这些发现为开发高效和可持续的吸附剂提供了宝贵的见解,用于从水中去除重金属.

关键词:

活性炭是一种活性炭.吸附剂是一种吸附剂.枣子种子枣子种子优化优化优化优化子皮,子皮,子皮的使用方法

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