将石墨烯氧化物量子点纳入聚乙硫纳米过膜的梯度层,用于从水溶液中排斥酸盐
Zeya Li1, Mingyu Zhai1, Xiuli Wang1
1Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China.
ACS applied materials & interfaces
|October 4, 2024
概括
石墨烯氧化物量子点增强聚硫纳米过膜,显著改善酸盐排斥和水流,同时保持出色的耐用性和防性质.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
背景情况:
- 石墨烯氧化物量子点 (GOQD) 为先进的材料应用提供了独特的特性.
- 纳米过 (NF) 膜对于净水至关重要,但通常在性能和耐用性方面面临限制.
研究的目的:
- 研究将GOQD纳入基于聚乙硫 (PES) 的纳米过膜中的情况.
- 评估GOQD对膜性能的影响,特别是酸盐排斥,透流量和稳定性.
主要方法:
- 使用界面聚合制造制造基于PES的NF膜.
- 将GOQD纳入NF膜的超薄层,中间层和基板层.
- 对酸盐排斥,透流量,稳定性,防和抗性的评估.
主要成果:
- 合并于GOQD的NF膜 (GOQD/PES-NF-2) 在0.6MPa时实现了52.2L m-1h-1的透流量和96.3%的酸盐排斥率.
- 与原始的PES-NF膜相比,透流量增加了2.4倍,酸盐排斥显示出~7.6%的增强.
- 在低工作压力下,GOQD/PES-NF-2膜表现出与反透膜相比较的单价离子排斥,以及优越的耐用性,防和抗性.
结论:
- 加入GOQD显著提高了基于PES的NF膜用于水处理的性能.
- 开发的GOQD/PES-NF-2膜为高效和持久的水净化提供了一个有前途的解决方案,具有改进的流量和排斥能力.
- 该研究强调了GOQD在开发下一代纳米过技术方面的潜力.
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