从水溶液中吸附Gentian紫色染料的动力学和异热学研究,使用合成的Hydroxyapatite
Dalia A Ali1, Fatma A Saad1, Hoda A Elsawy1
1Department of Chemical Engineering, The British University in Egypt, El Shorouk City 11837, Egypt.
Journal of environmental and public health
|June 7, 2023
概括
这项研究介绍了合成的酸 (HAp) 作为一种有效的吸附剂,用于从废水中去除紫色 (GV) 染料. 这项研究强调了HApAp.
科学领域:
- 环境化学环境化学
- 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:
- 织行业的废水由于高度的染料,造成了重大的环境和健康风险.
- 吸附是一种有前途的染料去除技术,但需要新的,高效的吸附剂.
- 酸 (HAp) 具有作为吸附剂的潜力,但其用于紫色 (GV) 染料去除的应用尚未得到充分探索.
研究的目的:
- 合成和表征未经修改的酸 (HAp) 用于紫 (GV) 染料吸附.
- 通过HAp.调查GV染料去除的吸附动力学,同热量和热力学.
- 优化实验条件以获得最大的GV染料去除效率,使用HAp.
主要方法:
- 使用联合沉微波方法合成的酸 (HAp).
- 通过SEM,EDX,XRD,FTIR和泽塔电位分析进行吸附剂的表征.
- 批量吸附实验以研究pH,度,剂量和接触时间的影响;动力,同热和热力学建模.
主要成果:
- 伪二次运动模型最好地描述了吸附过程.
- 哈尔西等温模型适应了这些数据,显示最大吸附能力为1.035 mg/g.
- 在pH12,3 mg/L GV,1 g/L HAp和90分钟的接触时间下达到99.32%的最佳去除效率.
结论:
- 未经修改的合成酸 (HAp) 是一种有效的吸收剂,用于紫 (GV) 染料.
- 吸附机制可能涉及HAp和GV染料之间的静电相互作用.
- 吸附过程的内热和自发性质通过热力学分析得到证实.
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