通过CO2或蒸汽物理激活的低成本栗子基生物碳:结构和吸附性质的评估
Barbara Charmas1, Barbara Wawrzaszek1, Katarzyna Jedynak2
1Department of Chromatography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland.
Materials (Basel, Switzerland)
|April 24, 2025
概括
马栗种子中的活性生物碳有效地从水中去除四环素,纳素和甲基色等有机污染物. 这些环保材料为净化水提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学 化学 化学
背景情况:
- 水生环境面临着有机污染物的污染,如药品和染料.
- 开发可持续和成本效益高的吸附剂用于水资源整治至关重要.
- 马栗种子 (Aesculus hippocastanum) 是一个未充分利用的生物质来源.
研究的目的:
- 使用物理激活 (CO2和水蒸气) 来从马栗种子生物质中产生活性生物碳.
- 描述衍生生物碳的结构和吸附性质.
- 评估这些生物碳在从水溶液中去除特定有机污染物 (四环素,纳素,甲基) 的有效性.
主要方法:
- 用二氧化碳和水蒸气对马栗种子生物质进行物理激活.
- 使用N2吸附/脱附,拉曼和FT-IR光谱,TGA和表面特性分析 (pHzpc,Boehm定位) 的表征.
- 使用四环素 (TC),纳素 (NPX) 和甲基色 (MO) 的吸附性研究.
主要成果:
- 获得的微/半孔生物碳具有较高的表面积 (534-646 m2/g),微孔度约为70%.
- 已证明的高吸附能力:TC的120mg/g,NPX的150mg/g,MO的252mg/g.
- 实现了高的去除率:TC的约80%,NPX的约95%,MO的约75%.
结论:
- 来自马栗的活性生物碳是有机污染物的有效吸附剂.
- 这些生物碳为净化水提供了具有成本效益和环保的替代品.
- 进一步的研究应该优化激活参数并评估长期吸附剂性能.
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