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花生的生物炭用于Rhodamine B的去除:效率,脱和可重复使用性

Birol Kayranli¹, Murat Bilen², Ismail Yigit Seckin³

¹Graduate School of Natural and Applied Science, Department of Environmental Science, Gazi University, Ankara, Turkey; Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN, USA.

|August 10, 2024

概括

花生生物炭有效地去除水中的Rhodamine B染料. 这种经济实惠,环保的吸附剂可重复使用,在酸性pH值下工作最好,提供可持续的水处理解决方案.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

污染废水的合成染料,如罗达胺B (RhB) 构成环境风险.
开发具有成本效益和可持续的染料去除吸附剂对于环境修复至关重要.

研究的目的:

合成和表征花生生物炭 (PSB) 以有效地从水溶液中去除罗达胺B.
研究RhB对PSB的吸附机制,动力学和热力学.

主要方法:

花生被转化为生物炭,并使用FTIR和BET表面积分析进行了表征.
进行了吸附实验,以确定最佳条件 (pH,吸附剂剂量) 并评估去除效率.
同热和运动模型 (弗朗德利希,兰格穆尔等) 应用于了解吸附过程.

主要成果:

花生生物炭表现出高表面积 (351.11 m2/g) 与丰富的功能组用于染料吸附.
在pH3下,在0.325g/L的吸附剂剂量下,达到94.0%的最大RhB去除效率.
弗洛伊德利希等温模型最好地描述了吸附平衡,表明了多层吸附.

结论:

花生生物炭是一种高效,可重复使用和可持续的吸收剂,用于清除罗达胺B.
吸附过程是自发的和外热的,使PSB成为工业废水处理的有吸引力的选择.
这种生物炭为减少染料污染提供了一种具有成本效益和环保性的解决方案.

关键词:

吸附方式吸附方式吸附方式生物炭是一种生物炭.脱吸方式脱吸方式重复使用重复使用.这就是为什么 RhB RhB RhB.

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