TY - JOUR
T1 - Photo-tailored heterocrystalline covalent organic framework membranes for organics separation
AU - Yuan, Jinqiu
AU - You, Xinda
AU - Khan, Niaz Ali
AU - Li, Runlai
AU - Zhang, Runnan
AU - Shen, Jianliang
AU - Cao, Li
AU - Long, Mengying
AU - Liu, Yanan
AU - Xu, Zijian
AU - Wu, Hong
AU - Jiang, Zhongyi
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21
PY - 2022/12/1
Y1 - 2022/12/1
N2 - Organics separation for purifying and recycling environment-detrimental solvents is essential to sustainable chemical industries. Covalent organic framework (COF) membranes hold great promise in affording precise and fast organics separation. Nonetheless, how to well coordinate facile processing—high crystalline structure—high separation performance remains a critical issue and a grand challenge. Herein, we propose a concept of heterocrystalline membrane which comprises high-crystalline regions and low-crystalline regions. The heterocrystalline COF membranes are fabricated by a two-step procedure, i.e., dark reaction for the construction of high-crystalline regions followed by photo reaction for the construction of low-crystalline regions, thus linking the high-crystalline regions tightly and flexibly, blocking the defect in high-crystalline regions. Accordingly, the COF membrane exhibits sharp molecular sieving properties with high organic solvent permeance up to 44-times higher than the state-of-the-art membranes.
AB - Organics separation for purifying and recycling environment-detrimental solvents is essential to sustainable chemical industries. Covalent organic framework (COF) membranes hold great promise in affording precise and fast organics separation. Nonetheless, how to well coordinate facile processing—high crystalline structure—high separation performance remains a critical issue and a grand challenge. Herein, we propose a concept of heterocrystalline membrane which comprises high-crystalline regions and low-crystalline regions. The heterocrystalline COF membranes are fabricated by a two-step procedure, i.e., dark reaction for the construction of high-crystalline regions followed by photo reaction for the construction of low-crystalline regions, thus linking the high-crystalline regions tightly and flexibly, blocking the defect in high-crystalline regions. Accordingly, the COF membrane exhibits sharp molecular sieving properties with high organic solvent permeance up to 44-times higher than the state-of-the-art membranes.
UR - https://www.nature.com/articles/s41467-022-31361-w
UR - http://www.scopus.com/inward/record.url?scp=85133363929&partnerID=8YFLogxK
U2 - 10.1038/s41467-022-31361-w
DO - 10.1038/s41467-022-31361-w
M3 - Article
C2 - 35780168
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
IS - 1
ER -