吸附甲基烯蓝使用由甘包残留物获得的已开发的无粘合剂热压颗粒状活性碳
Pimonpan Inthapat1, Nakorn Worasuwannarak2, Xian Li3
1Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand.
ACS omega
|August 18, 2025
概括
甘包油用无粘合剂热压技术转化为颗粒活性炭 (SCB-GAC). 这种可持续吸附剂有效地从水中去除甲蓝,显示出高容量和可重复使用性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 开发可持续吸附剂对于有效的水资源整治至关重要.
- 甘包呈现出丰富的基纤维素废物流,具有价值化潜力.
- 传统的活性炭生产通常涉及结合剂和强化学品.
研究的目的:
- 开发甘包衍生颗粒活性炭 (SCB-GAC) 作为生物基吸附剂.
- 为优化无粘合剂热压 (HP) 技术用于SCB-GAC生产.
- 为了评估SCB-GAC在去除甲基蓝 (MB) 的吸附性能.
主要方法:
- 无粘合剂热压 (HP) 技术用于生产SCB颗粒.
- 500°C的碳化,然后在850°C的蒸汽激活.
- 系统地微调HP条件 (压力,温度,时间).
主要成果:
- 在最佳HP条件 (20MPa,270°C,30分钟) 中,高表面积 (804.6m2/g) 的SCB-GAC产量为53.7%.
- 最大的MB吸附能力达到~138 mg/g,适合伪二次动力学和兰格穆尔等热法.
- 在使用乙醇再生的五个周期中保持了高吸附效率 (87-92%).
结论:
- 无粘合剂热压是一种生产高性能SCB-GAC的有效方法.
- 作为一种可持续的,可重复使用的吸附剂,SCB-GAC在去除MB方面表现出极好的潜力.
- 开发的吸附剂显示出对工业废水处理应用的前景.
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