Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 18, Pages 20664-20671Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c02513
Keywords
metal-organic framework; ZIF-8 nanoparticles; layer-by-layer; nanocomposite membrane; pervaporation desulfurization; separation
Funding
- State Key Laboratory of Fine Chemicals [KF1706]
- Science and Technology Plan Projects of Shaanxi Province [2019GY-207]
- Postgraduate Independent Innovation Project of Northwest University [YZZ17135]
Ask authors/readers for more resources
The desulfurization property of conventional mixed matrix membranes (MMMs) cannot meet the necessary demand due to particles aggregation and interface defects. Here, we put forward a layer-by-layer (LBL) approach to make a novel PEG@ZIF-8/poly(vinylidene difluoride)-(PVDF) composite membrane for pervaporation desulfurization. In this way, a ZIF-8 layer is covered on the surface of the PVDF porous membrane via an in situ growth method. Then, a PEG layer is covered on the ZIF-8 layer by a casting method. Compared with pristine PEG membranes, the separation performance of the ZIF-8@PEG/PVDF nanocomposite membrane increased significantly. This can be attributed to the homogeneous ZIF-8 particle layer and better compatibility between the poly(ethylene glycol) (PEG) matrix and ZIF-8 particles. The membrane achieves a maximum total flux of 3.08 kg.m(-2).h(-1) at the third in situ growth cycles of ZIF-8 particles and a maximum sulfur enrichment factor of 7.6 at the sixth in situ growth cycles of ZIF-8 particles.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available