Selective permeation up a chemical potential gradient to enable an unusual solvent purification modality

渗透 化学 水溶液 吸附 化学工程 环境化学 有机化学 吸附 生物化学 工程类
作者
Haley D. White,Young Hee Yoon,Yi Ren,Conrad Roos,Yuxiang Wang,William J. Koros,Ryan P. Lively
出处
期刊:Proceedings of the National Academy of Sciences of the United States of America [Proceedings of the National Academy of Sciences]
卷期号:120 (24) 被引量:1
标识
DOI:10.1073/pnas.2220127120
摘要

The need for energy-efficient recovery of organic solutes from aqueous streams is becoming more urgent as chemical manufacturing transitions toward nonconventional and bio-based feedstocks and processes. In addition to this, many aqueous waste streams contain recalcitrant organic contaminants, such as pharmaceuticals, industrial solvents, and personal care products, that must be removed prior to reuse. We observe that rigid carbon membrane materials can remove and concentrate organic contaminants via an unusual liquid-phase membrane permeation modality. Surprisingly, detailed thermodynamic calculations on the chemical potential of the organic contaminant reveal that the organic species has a higher chemical potential on the permeate side of the membrane than on the feed side of the membrane. This unusual observation challenges conventional membrane transport theory that posits that all permeating species move from high chemical potential states to lower chemical potential states. Based on experimental measurements, we hypothesize that the organic is concentrated in the membrane relative to water via favorable binding interactions between the organic and the carbon membrane. The concentrated organic is then swept through the membrane via the bulk flow of water in a modality known as “sorp-vection.” We highlight via simplified nonequilibrium thermodynamic models that this “uphill” chemical potential permeation of the organic does not result in second-law violations and can be deduced via measurements of the organic and water sorption and diffusion rates into the carbon membrane. Moreover, this work identifies the need to consider such nonidealities when incorporating unique, rigid materials for the separations of aqueous waste streams.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
英俊的铭应助慕辰采纳,获得10
2秒前
啦啦啦发布了新的文献求助10
3秒前
zrz完成签到,获得积分10
3秒前
4秒前
4秒前
ahaaa发布了新的文献求助10
5秒前
5秒前
天天快乐应助激情的一斩采纳,获得10
5秒前
欢喜的代容完成签到,获得积分10
6秒前
隐形之玉完成签到,获得积分10
6秒前
7秒前
NexusExplorer应助mml采纳,获得10
7秒前
lhy完成签到,获得积分10
8秒前
五香完成签到 ,获得积分10
8秒前
樂事发布了新的文献求助10
10秒前
11秒前
xingzou完成签到,获得积分10
11秒前
11秒前
濮阳冰海完成签到 ,获得积分10
11秒前
11秒前
12秒前
烟花应助jjb采纳,获得10
13秒前
苦力怕发布了新的文献求助10
13秒前
Fan完成签到,获得积分10
13秒前
科研通AI2S应助畅快访蕊采纳,获得10
13秒前
孙某人完成签到 ,获得积分10
14秒前
容与完成签到 ,获得积分10
14秒前
嘻嘻发布了新的文献求助10
15秒前
大模型应助zxy采纳,获得10
15秒前
曹帅发布了新的文献求助10
15秒前
雪白的雪完成签到,获得积分10
15秒前
毛毛发布了新的文献求助10
16秒前
九九完成签到 ,获得积分10
16秒前
慕辰发布了新的文献求助10
18秒前
叶圣贤完成签到 ,获得积分20
18秒前
Ava应助QYW采纳,获得10
18秒前
列奥维登完成签到,获得积分20
18秒前
夹心小僧完成签到,获得积分10
19秒前
22秒前
高分求助中
Sustainability in Tides Chemistry 2800
Kinetics of the Esterification Between 2-[(4-hydroxybutoxy)carbonyl] Benzoic Acid with 1,4-Butanediol: Tetrabutyl Orthotitanate as Catalyst 1000
The Young builders of New china : the visit of the delegation of the WFDY to the Chinese People's Republic 1000
Rechtsphilosophie 1000
Bayesian Models of Cognition:Reverse Engineering the Mind 888
Handbook of Qualitative Cross-Cultural Research Methods 600
Very-high-order BVD Schemes Using β-variable THINC Method 568
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3137423
求助须知:如何正确求助?哪些是违规求助? 2788470
关于积分的说明 7786719
捐赠科研通 2444666
什么是DOI,文献DOI怎么找? 1300018
科研通“疑难数据库(出版商)”最低求助积分说明 625731
版权声明 601023