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从水中有效和有选择地捕获各种物种,使用脱皮的硫纤维素

Daikun Li¹, Yongmin Wang¹, Wanying Deng¹

¹Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, Chongqing 400715, China.

The Science of the total environment

|February 19, 2024

概括

一种新的硫纤维素 (CU-SH) 吸附剂为去除提供了一种经济且高性能的解决方案. 这种材料有效净化饮用水,并显示出各种形式的潜力.

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:

污染对环境和健康构成重大风险.
开发具有成本效益和高性能的吸附剂对于实际应用至关重要.
现有的吸附剂往往难以平衡效率与经济可行性.

研究的目的:

合成具有高醇密度和等级多孔性的脱皮硫纤维素 (CU-SH) 材料.
评估CU-SH在去除方面的性能,稳定性和可重复使用性.
探索CU-SH在使用点 (POU) 水净化设备中的潜力.

主要方法:

现场配体接种与化学剥离相结合,用于合成CU-SH.
进行了批量吸附实验,以评估在各种条件下Hg的去除效率.
进行了可重复使用性测试和真实净水试验,以证明其实际适用性.

主要成果:

CU-SH表现出优异的Hg(II) 吸附能力 (652.9 mg/g) 和选择性 (Kd = 6.2 × 10^6 mg/L).
吸附剂表现出广泛的工作pH范围 (1-12),快速动力学,并在20个循环后可重复使用95%以上.
使用CU-SH的POU设备有效净化污染的自来水,并显示对各种物种的亲和力.

结论:

脱皮型硫纤维素 (CU-SH) 是一种有希望的,经济的,高性能的吸附剂,用于去除.
与传统吸附剂相比,CU-SH具有更高的稳定性,选择性和可重复使用性.
该材料的多功能性延伸到各种形式和现实世界水处理,突出其实际潜力.

关键词:

先进的吸附吸附方式脱皮的纤维素是脱皮的纤维素.高选择性高选择性水银污染污染水银污染醇功能化的功能化

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