Superhydrophobic modification of PVDF–SiO2 electrospun nanofiber membranes for vacuum membrane distillation

RSC Advances ◽  
2015 ◽  
Vol 5 (83) ◽  
pp. 67962-67970 ◽  
Author(s):  
Zhe-Qin Dong ◽  
Xiao-Hua Ma ◽  
Zhen-Liang Xu ◽  
Zhi-Yun Gu
Keyword(s):  
Membrane Distillation ◽  
Hydrophobic Modification ◽  
Electrospun Nanofiber ◽  
Wetting Properties ◽  
Vacuum Membrane Distillation ◽  
Nanofiber Membranes

Superhydrophobic nanofiber membranes with high permeate fluxes and anti-wetting properties were prepared by hydrophobic modification of PVDF–SiO2 nanofiber membranes.

Electrospun Nanofiber Membranes for Membrane Distillation

2019 ◽  
pp. 107-140
Author(s):  
Jiaxin Guo ◽  
Bhaskar Jyoti Deka ◽  
Alicia Kyoungjin An
Keyword(s):  
Membrane Distillation ◽  
Electrospun Nanofiber ◽  
Nanofiber Membranes

scholarly journals Experimental Evaluation of the Thermal Polarization in Direct Contact Membrane Distillation Using Electrospun Nanofiber Membranes Doped With Molecular Probes

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 638 ◽  
Author(s):  
Sergio Santoro ◽  
Ivan Vidorreta ◽  
Isabel Coelhoso ◽  
Joao Lima ◽  
Giovanni Desiderio ◽  
...  
Keyword(s):  
Experimental Evaluation ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Operating Conditions ◽  
Low Grade ◽  
Electrospun Nanofiber ◽  
Direct Contact Membrane Distillation ◽  
Thermal Polarization ◽  
Nanofiber Membranes ◽  
The Impact

Membrane distillation (MD) has recently gained considerable attention as a valid process for the production of fresh-water due to its ability to exploit low grade waste heat for operation and to ensure a nearly feed concentration-independent production of high-purity distillate. Limitations have been related to polarization phenomena negatively affecting the thermal efficiency of the process and, as a consequence, its productivity. Several theoretical models have been developed to predict the impact of the operating conditions of the process on the thermal polarization, but there is a lack of experimental validation. In this study, electrospun nanofiber membranes (ENMs) made of Poly(vinylidene fluoride) (PVDF) and doped with (1, 10-phenanthroline) ruthenium (II) Ru(phen)3 were tested at different operating conditions (i.e., temperature and velocity of the feed) in direct contact membrane distillation (DCMD). The temperature sensitive luminophore, Ru(phen)3, allowed the on-line and non-invasive mapping of the temperature at the membrane surface during the process and the experimental evaluation of the effect of the temperature and velocity of the feed on the thermal polarization.

Sign in / Sign up

Export Citation Format

Share Document