可扩展的相互连接的层次性多孔生物碳纳米片,以有效地从水生环境中去除
Haitao Ren1, Zainab Amjad2, Atif Saleem3
1Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, Technological Institute of Materials & Energy Science (TIMES), Xijing University, Xi'an 710123, China.
Journal of hazardous materials
|March 12, 2025
概括
来自农业废物的工程生物碳纳米板 (BCN) 为工业水处理提供了可扩展的解决方案. 这些BCN有效地去除有毒的,并在具有挑战性的条件下保持性能.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 工业应用工程碳材料的可扩展生产仍然是一个重大挑战.
- 农业废物是开发先进材料的未充分利用的资源.
研究的目的:
- 开发一种可扩展和创新的化学脱皮方法,从农业废物中生产相互关联的等级生物碳纳米板 (BCNs).
- 评估BCN在从水中去除有毒重金属方面的性能.
主要方法:
- 农业废弃物的化学剥皮,以制造生物碳纳米片 (BCN).
- 描述BCN的表面积,孔隙结构和吸附特性.
- 在干扰离子和有机酸的存在下测试 Tl ((I) 吸附能力和去除效率.
- 评估BCN在多个吸附-脱附周期中的可回收性.
- 进行固定床柱试验,用于连续流水处理模拟.
主要成果:
- 已发育的BCN表现出高表面积 (1048.63 m2 g-1),平均孔径为2.051 nm.
- 在BCN中,表现出优异的TL(I) 吸附能力,最大吸附能力为448.21mgg-1.1.
- 在与有机酸并存的离子和有机酸的存在下,保持了高的去除效率 (>80%).
- 在18个循环后,可回收率为81.3%.
- 固定床柱试验成功处理了大约929个床体积的原料.
结论:
- 开发的BCN显示了从生物质中高性价比,大规模生产工程碳材料的巨大潜力.
- 即使在具有挑战性的条件下,BCN也非常有效地从水中去除像Tl ((I) 这样的有毒金属.
- 该研究强调了BCN在连续流系统中的工业规模水处理应用中的可行性.
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