Development and optimization of low surface free energy of rGO-PVDF mixed matrix membrane for membrane distillation

Ting, Lyly Leow Hui; Teow, Yeit Haan; Mahmoudi, Ebrahim; Seng, Ooi Boon

doi:10.1016/j.seppur.2022.122428

Cited by 8 publications

(3 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is due to the hydrophilicity of the TiAl 2 O 4 nanoparticles and the high roughness of combined nano cellulose fibers, which create a hierarchical roughness on the surface of the membrane. This roughness can trap air pockets, preventing contact with the water droplets and promoting the self-cleaning effect in the case of MB dye filtration (Hui Ting et al 2023 ).…”

Section: Resultsmentioning

confidence: 99%

Removing of cationic dyes using self-cleaning membranes-based PVC/nano-cellulose combined with titanium aluminate

Elfiky,

Mubarak,

Keshawy

et al. 2023

Environ Sci Pollut Res

View full text Add to dashboard Cite

This research used the phase inversion approach to construct polyvinyl chloride nanocellulose@titanium aluminate nanocomposite membranes (PVC/NC@TALCM) to adsorb and filter dye from wastewater. FTIR, XRD, and SEM were used to determine the adsorptive nanocomposite membrane that had been synthesized. The thermal and electrical properties measurements were carried out using a static system. The influence of several adsorbent dosages, pH, and dye concentrations on the nanocomposite membrane’s adsorption ability was investigated. Using a dead-end filtration system, the PVC-NC@TALCM was evaluated as a pressure filtration membrane system. It was found that 98.6% of MB dye was removed by PVC-NC@TALCM membrane, which was loaded with 5% titanium aluminate at pH 10. The kinetic adsorption studies indicated that the adsorption of MB onto the PVC-NC@TALCM nanocomposite membrane obeys pseudo-second-order that indicates the chemosorption process. The isotherm data were described using Freundlich and Langmuir models, and the Freundlich isotherms were shown to be more closely match the experimental data than the Langmuir model. Finally, the PVC-NC@TALCM nanocomposite membrane was economical, environmentally friendly, and self-cleaning.

show abstract

Section: Resultsmentioning

confidence: 99%

Removing of cationic dyes using self-cleaning membranes-based PVC/nano-cellulose combined with titanium aluminate

Elfiky,

Mubarak,

Keshawy

et al. 2023

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“… 34 Yadav et al developed SiO 2 modified PVDF nanofibrous membrane with a water contact angle of 154.6°, which produced a vapor flux of 11.5 kg m –2 h –1 . 35 Additionally, carbon based nanomaterials, such as reduced graphene oxide blended with PVDF membranes, resulted in 31.79% increase in vapor flux compared to pristine PVDF membrane, 36 and multiwall carbon nanotube spray coated PVDF membranes yielding a vapor flux of 33.2 kg m –2 h –1 . 37 …”

Section: Introductionmentioning

confidence: 99%

Investigating Permselectivity in PVDF Mixed Matrix Membranes Using Experimental Optimization, Machine Learning Segmentation, and Statistical Forecasting

Merugu,

Kearney,

Keum

et al. 2024

ACS Omega

View full text Add to dashboard Cite

“…The blending of PVDF with other materials, such as graphene oxide (GO), for the fabrication of Mixed Matrix Membranes (MMMs) for MD applications has also been attracting a lot of attraction. Hui Ting et al (Hui Ting et al, 2023) developed a MMM using PVDF and reduced graphene oxide (rGO). The permeate flux of their hybrid membranes showed a 32% enhancement of the permeate flux compared to the reference membranes and a salt rejection of 99.99%.…”

Section: Introductionmentioning

confidence: 99%

Artificial water channels-embedded PVDF membranes for direct contact membrane distillation and ultrafiltration

Nursiah,

Musteata,

Cerneaux

et al. 2023

Front. Membr. Sci. Technol.

View full text Add to dashboard Cite

Innovative self-supported flat-sheet polyvinylidene fluoride (PVDF) membranes were developed incorporating amphiphilic I-quartet Artificial Water Channels (AWCs) and applied for membrane distillation (MD) and Dyes Ultrafiltration (UF). The presence of AWCs was aimed to increase the amount of water within hydrophobic PVDF pores increasing water permeability and preserving high selectivity and consequently to improve the MD and dyes UF performances. We explored novel strategies in which water channels structures contribute to water cluster stabilization and the increase of water (vapors or liquid) within hydrophobic pore structures. With this novel strategy in mind, three PVDF polymer grades with different molecular weights as well as the variation of their mass concentration as well as of AWCs were studied to shed in light their influence on the water permeability using a dead-end filtration setting. An enhanced water permeability of 75.3 L.m−2.h−1.bar−1 was attained for the PVDF-AWC hybrid membrane prepared using 16 wt% PVDF (530,000 g/mol) and 0.05 wt% AWCs when compared with a reference membrane with a water permeability of 30.6 L.m−2.h−1.bar−1. The MD performances of both membranes were assessed using a 35 g/L NaCl aqueous solution to yield a salt rejection of 95.3% and 85.2%, respectively. Furthermore, both the reference and the PVDF-AWC membranes showed improved separation performance in terms of rejection efficiency and dye permeability for binary dyes mixture as compared to single dyes. Among all the tested membranes, while methylene blue was completely removed in both cases, the 14 wt% PVDF membrane incorporating 0.075 wt% AWC showed a methyl orange rejection efficiency of up to 99.8% compared to 98.4% for its reference membrane. This hybrid membrane also displayed an almost doubled filtered dye feed permeability of 84 L.m−2.h−1.bar−1, compared to 40 L.m-2.h−1.bar−1 for its 14 wt% PVDF reference membrane.

show abstract

Development and optimization of low surface free energy of rGO-PVDF mixed matrix membrane for membrane distillation

Cited by 8 publications

References 38 publications

Removing of cationic dyes using self-cleaning membranes-based PVC/nano-cellulose combined with titanium aluminate

Removing of cationic dyes using self-cleaning membranes-based PVC/nano-cellulose combined with titanium aluminate

Investigating Permselectivity in PVDF Mixed Matrix Membranes Using Experimental Optimization, Machine Learning Segmentation, and Statistical Forecasting

Artificial water channels-embedded PVDF membranes for direct contact membrane distillation and ultrafiltration

Contact Info

Product

Resources

About