| Title |
Fabrication of green poly (L-lactic acid) hybrid membrane through incorporation of functionalized natural halloysite nanotubes |
| ID_Doc |
12239 |
| Authors |
Wang, BY; He, HF; Li, YL; Liu, CJ; Bai, JJ; Zhou, XM; Li, JJ; Wang, YF |
| Title |
Fabrication of green poly (L-lactic acid) hybrid membrane through incorporation of functionalized natural halloysite nanotubes |
| Year |
2022 |
| Published |
Journal Of Chemical Technology And Biotechnology, 97.0, 7 |
| DOI |
10.1002/jctb.7033 |
| Abstract |
BACKGROUND Membrane technology has attracted increasing interest in the field of separation and purification. Unfortunately, conventional membrane materials are usually derived from non-renewable fossil resources that are difficult to degrade at the end of their life. In this work, as a sustainable alternative to the conventional polymer membrane, the biobased ploy (L-lactic acid) (PLLA) hybrid membrane was successfully fabricated through the incorporation of modified natural halloysite nanotubes (HNTs). RESULTS The PLLA/HNT hybrid membranes were analysed by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray diffraction (XRD), and contact angle measurement. The pure water flux of the hybrid membrane increased from 140.3 to 329.7 L.m(-3).h(-1), while the bovine serum albumin (BSA) rejection ratio decreased from 94.3 to 82.7% with increasing HNT loading content from 0 to 1 wt%. Moreover, the addition of HNTs could also enhance the antifouling performance of the hybrid membrane. CONCLUSION The green PLLA/HNT hybrid membrane was successfully made from the recoverable and biodegradable PLLA and naturally occurring HNTs. Compared with the PLLA-based membranes reported in the literature, the PLLA/HNT hybrid membranes presented relatively high permeability, moderate BSA rejection, and good antifouling performance. The green poly (L-lactic acid) hybrid membranes hold great promise for practical application as they can contribute to a circular economy and sustainable development. (c) 2022 Society of Chemical Industry (SCI). |
| Author Keywords |
halloysite nanotube; ploy (L-lactic acid); hybrid membrane; hydrophilic modification |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000749259100001 |
| WoS Category |
Biotechnology & Applied Microbiology; Chemistry, Multidisciplinary; Engineering, Environmental; Engineering, Chemical |
| Research Area |
Biotechnology & Applied Microbiology; Chemistry; Engineering |
| PDF |
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