Constructing green superhydrophilic and superoleophobic COFs-MOFs hybrid-based membrane for efficiently emulsion separation and synchronous removal of microplastics, dyes, and pesticides

化学工程 超亲水性 吸附 乳状液 材料科学 饮用水净化 生物污染 过滤(数学) 溶剂 人体净化 纳米技术 化学 有机化学 废物管理 接触角 工程类 统计 生物化学 数学
作者
Shan Peng,Haobo Ma,Xiaoyan Hao,Ruimeng Han,Xiaoyu Ji,Lei Wang,Yanyan Fang,Kyongjin Pang,Kwon Il-Ho,Xiaoxin Chen
出处
期刊:Environmental Research [Elsevier BV]
卷期号:243: 117777-117777 被引量:26
标识
DOI:10.1016/j.envres.2023.117777
摘要

Oil spills and micropollutants have become thorny environmental issues, posing serious threat to ecosystem and human health. To settle such dilemma, this study successfully constructed a robust and environmentally-friendly MOFs-COFs hybrid-based membrane (FS-50/COF(MATPA)-MOF(Zr)/PDA@PVDF) for the first time through solution synthesis and solvothermal method, combined with surface modification of FS-50 molecule. Importantly, we employed a simple two-step strategy to obtain the high-aspect-ratio MOFs fibers: (1) solvent regulation to generate smaller needle-like whiskers during the in-situ growth of MOFs on COFs; (2) high pressure induced directional crystallization in filtration process. The introduction of polydopamine (PDA) greatly improved the adhesion between coating and PVDF membrane. The in-situ growth of high length-diameter ratio MOFs fibers on blocky COFs greatly enhanced the specific surface area of MOFs-COFs hybrid, thus provided sufficient absorption sites. The functional groups of FS-50 endowed the hybrid membrane with superhydrophilicity and superoleophobicity, which facilitated to selectively penetrate water molecules and repel non-polar pollutants. The separation efficiency and decontamination mechanism of hybrid membrane to the simulated oily wastewater (containing various MPs, dyes, and pesticides) were investigated through experiments and theoretical calculations. The hybrid membrane could selectively and synchronously adsorb various dyes (20 mg/L–120 mg/L, almost 100% removal) and pesticides (10 mg/L for DIF and TET, adsorption rates 93.2% and 90.9%, respectively) from oil-water emulsion (50 mL). The large-scale coated sponge (6 cm × 4.5 cm × 3 cm) could quickly achieve separation of oil-water mixture (almost 100%) with a water permeability of more than 162 L m−2·h−1·bar−1, and simultaneously remove various MPs (PP-2000, PP-100, PE-2000, PS-100, 0.2 g/300 mL for each), Sudan Ⅲ (C0 = 200 mg/L), and DIF (C0 = 10 mg/L) from a simulant oily wastewater (300 mL), with the removal rates of almost 100% for MPs, 99.7% for Sudan Ⅲ, and 95.8% for DIF. Furthermore, we elucidated the removal mechanism of pesticide and dyes through simulating the theoretical adsorption energy and potential adsorption sites. The hybrid membrane not only provides a promising candidate for the removal of multiple pollutants from oil-water emulsion, but also opens a new strategy for achieving efficient and clean aquatic environment restoration.
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
PDF的下载单位、IP信息已删除 (2025-6-4)

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
nannan发布了新的文献求助10
2秒前
玩儿发布了新的文献求助10
2秒前
2秒前
量子星尘发布了新的文献求助10
3秒前
坤123发布了新的文献求助10
3秒前
3秒前
赘婿应助song采纳,获得10
3秒前
4秒前
李满际完成签到,获得积分10
4秒前
kyt完成签到,获得积分10
5秒前
5秒前
6秒前
小袁同学完成签到,获得积分20
6秒前
6秒前
7秒前
甜甜的亦寒完成签到,获得积分10
7秒前
7秒前
小太阳完成签到,获得积分20
8秒前
桐桐应助快乐冰淇淋采纳,获得30
8秒前
8秒前
kyt发布了新的文献求助10
9秒前
9秒前
稳如老狗发布了新的文献求助10
9秒前
图灵桑发布了新的文献求助10
10秒前
漂亮豆芽发布了新的文献求助20
10秒前
10秒前
乐乐应助Ycai采纳,获得10
11秒前
啦啦啦发布了新的文献求助10
12秒前
一切随风发布了新的文献求助10
12秒前
song完成签到,获得积分10
12秒前
学术大佬阿呆关注了科研通微信公众号
12秒前
mmRadio发布了新的文献求助10
12秒前
peiqi佩奇发布了新的文献求助10
13秒前
Alico完成签到 ,获得积分10
13秒前
清暗月华完成签到,获得积分10
13秒前
捡垃圾的Doctor完成签到,获得积分10
13秒前
lululuq完成签到,获得积分10
14秒前
惠惠发布了新的文献求助10
14秒前
完美世界应助Song采纳,获得10
15秒前
dddd发布了新的文献求助10
15秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 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 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3970394
求助须知:如何正确求助?哪些是违规求助? 3515139
关于积分的说明 11177107
捐赠科研通 3250335
什么是DOI,文献DOI怎么找? 1795254
邀请新用户注册赠送积分活动 875732
科研通“疑难数据库(出版商)”最低求助积分说明 805054