使用人工神经网络来建模刚果红色对激活子的吸附
1Department of Environmental Engineering, Aksaray University, Aksaray, Turkey. ozgulcimen@gmail.com.
Environmental monitoring and assessment
|June 19, 2024
概括
激活的子有效地从水中去除了刚果红色染料. 一个人工神经网络模型准确地预测了清除效率,证明了其在废水处理方面的潜力.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 吸附科学 吸附科学
背景情况:
- 织行业的废水通常含有像刚果红色这样的持久染料.
- 传统的处理方法可能是低效或昂贵的染料去除.
- 有机废物的利用,例如子,为吸附剂开发提供了一种可持续的方法.
研究的目的:
- 为了研究使用激活子 (HSAC) 进行刚果红 (CR) 染料吸附.
- 使用人工神经网络 (ANN) 建模和预测吸附过程.
- 评估HSAC从水溶液中去除染料的效率和能力.
主要方法:
- 使用FTIR和BET表面积分析合成和表征激活子 (HSAC).
- 批量吸附实验以确定最佳条件 (pH,接触时间,吸附剂剂量,初始度).
- 分别使用伪二阶模型和弗洛伊德利希模型进行动力和同热模型建模.
- 开发和验证人工神经网络 (ANN) 模型,用于预测CR吸附.
主要成果:
- 在HSAC中,BET的表面积很高 (812 m2/g).
- 在最佳吸附条件下,CR去除效率达到87%.
- 吸附动力学遵循伪二阶模型 (R2 = 0.998),平衡数据符合弗洛伊德利希模型.
- 对于CR,HSAC的最大吸附能力是34.8 mg/g.
- 该ANN模型实现了98%的相关性,这表明预测准确度很高.
结论:
- 激活子是一种有前途的,具有成本效益的吸附剂,用于清除刚果红色染料.
- 伪二阶和弗洛伊德利希模型准确地描述了吸附过程.
- 人工神经网络是使用HSAC预测染料吸附效率的可靠工具.
相关概念视频
Analyte Adsorption and Distribution
In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and solvents...
Adsorption Isotherms I
Adsorption isotherms are mathematical models that describe how molecules in a gas or liquid phase interact with surfaces. Two of the most common isotherm models are the Langmuir and Freundlich isotherms, which relate to Type I monolayer chemisorption. The Langmuir model is based on four key assumptions:• Adsorption cannot exceed monolayer coverage.• All surface sites are equivalent.• Molecules adsorb only at vacant sites.• There are no interactions between adsorbed molecules.Consider the...
Adsorption Isotherms II
Brunauer, Emmett, and Teller (BET) introduced a theory in 1938 that modified Langmuir's assumptions to explain multilayer physical adsorption. This theory is applicable to Type II isotherms and provides a more realistic picture of adsorption processes. The BET theory assumes a uniform solid surface with localized adsorption sites, where adsorption at one site doesn't affect adsorption at neighboring sites. This theory also allows for the possibility of additional molecules being adsorbed on top...


