Enhanced Anti‐Wetting Methods of Hydrophobic Membrane for Membrane Distillation

Zhang, Honglong; Zhao, Xuan

doi:10.1002/advs.202300598

Cited by 16 publications

(1 citation statement)

References 200 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, it was found that after modification with gypsum, there was a decrease. This indicates that gypsum has the ability to enhance the hydrophilicity of the membrane (Zhang, H., & Zhao, X., 2023). Gypsum has characteristics that support affinity for water and allow the formation of hydrogen bonds between water molecules and the membrane surface (Min et al, 2018).…”

Section: Figure 2 Static and Dynamic Contact Anglesmentioning

confidence: 99%

Fabrication of Tight-Ultrafiltration Membrane by Combining Zif-8/Gypsum Additives to Enhance Removal of Organic Dye Substances

Salsabila,

Nazhiifah,

Salsabila

et al. 2024

IJARPED

View full text Add to dashboard Cite

Organic dyes that have been used in many industries contain chromophore (azo group, aromatic rings) which is hard to degrade. Therefore, wastewater containing organic dyes poses a serious threat to aquatic ecosystems and human health. Various techniques have been developed to remove organic coloring agents to alleviate the increasing concern of nondegradable organic dyes. Adsorption using membranes is considered the most economical and efficient method to control water pollution from dyes. In this research, to further enhance the adsorption capacity of organic dyes on the membrane, a new strategy was developed involving in-situ blending of ZIF-8/gypsum during the dope solution preparation and membrane printing processes. Gypsum, also combined with the polymer matrix of the membrane to create a hierarchical membrane with large adsorption capacity and separation of dyes. Based on the experiment that has been carried out, it is found that the water absorption rate and membrane porosity tended to increase as the difference measured between dry and wet weight of membrane after soaking gets bigger and higher amount of gypsum added leads to higher flux in tested membrane. A specific membrane composition, denoted as M4, demonstrates optimal performance with a blend of PVDF (polyvinylidene fluoride) at 11%, ZIF-8 (Zeolitic Imidazolate Framework-8) at 0.3%, and gypsum at 7%. This formulation results in a permeability of 58.8 L/m2.h.bar and a rejection rate of 34.21%. These outcomes align well with the observed trends in membrane porosity and surface hydrophilicity which incorporating ZIF-8 membrane exhibit antifouling properties, demonstrating effective resistance to fouling on the membrane surface. Eventually, these developed membranes show promise for extending the use of MOF-related materials and applications in the treatment of dye-containing wastewater, contributing to the production of cleaner water.

show abstract

Section: Figure 2 Static and Dynamic Contact Anglesmentioning

confidence: 99%

Fabrication of Tight-Ultrafiltration Membrane by Combining Zif-8/Gypsum Additives to Enhance Removal of Organic Dye Substances

Salsabila,

Nazhiifah,

Salsabila

et al. 2024

IJARPED

View full text Add to dashboard Cite

show abstract

Tailoring of Polypyrrole Wrapped Cotton Fiber Sponge for Simultaneous Solar Steam and Solar Thermoelectric Generation

Chen,

Tang,

Song

et al. 2024

Advanced Sustainable Systems

View full text Add to dashboard Cite

Solar steam generation (SSG) using floatable evaporators to absorb solar energy and generate heat at the water–air interface has attracted increasing interest in achieving water purification and desalination. Using biodegradable and porous biomass materials as evaporators to fabricate high‐performance SSG devices is a promising route, but the poor efficiency and fussy and energy‐intensive manufacturing process for biomass material‐based evaporators will restrict their practical application. Here, an old commercial cotton quilt is used to prepare porous cotton fiber sponges (CFS) via a simple and scalable mechanical foaming strategy. After being decorated by the polypyrrole (PPy), the CFS@PPy sponge with a hierarchical porous structure shows broadband light absorption capacity, good hydrophilicity, and excellent photothermal capacity. The obtained sponge can be directly used as an evaporator floating on the seawater and shows a high steam‐generation efficiency of 85.07% under 1 sun irradiation. Additionally, it can be used as a photothermal material to construct a solar thermoelectric generation (STG) device and achieve an enhanced open‐circuit voltage (Vout) of 0.4 V and output current (Iout) of ≈59.6 mA under 5 sun irradiations. With the help of a boost converter, the power generation from the STG device can continuously charge the electric bulb and wristband.

show abstract

Enhanced Anti‐Wetting Methods of Hydrophobic Membrane for Membrane Distillation

Zhang

Zhao

2023

Advanced Science

Self Cite

View full text Add to dashboard Cite

Increasing issues of hydrophobic membrane wetting occur in the membrane distillation (MD) process, stimulating the research on enhanced anti‐wetting methods for membrane materials. In recent years, surface structural construction (i.e., constructing reentrant‐like structures), surface chemical modification (i.e., coating organofluorides), and their combination have significantly improved the anti‐wetting properties of the hydrophobic membranes. Besides, these methods change the MD performance (i.e., increased/decreased vapor flux and increased salt rejection). This review first introduces the characterization parameters of wettability and the fundamental principles of membrane surface wetting. Then it summarizes the enhanced anti‐wetting methods, the related principles, and most importantly, the anti‐wetting properties of the resultant membranes. Next, the MD performance of hydrophobic membranes prepared by different enhanced anti‐wetting methods is discussed in desalinating different feeds. Finally, facile and reproducible strategies are aspired for the robust MD membrane in the future.

show abstract

Enhanced Anti‐Wetting Methods of Hydrophobic Membrane for Membrane Distillation

Cited by 16 publications

References 200 publications

Fabrication of Tight-Ultrafiltration Membrane by Combining Zif-8/Gypsum Additives to Enhance Removal of Organic Dye Substances

Fabrication of Tight-Ultrafiltration Membrane by Combining Zif-8/Gypsum Additives to Enhance Removal of Organic Dye Substances

Tailoring of Polypyrrole Wrapped Cotton Fiber Sponge for Simultaneous Solar Steam and Solar Thermoelectric Generation

Enhanced Anti‐Wetting Methods of Hydrophobic Membrane for Membrane Distillation

Contact Info

Product

Resources

About