Hybrid ceramic membranes for organic solvent nanofiltration: State-of-the-art and challenges

Merlet, Renaud B.; Pizzoccaro, Marie-Alix; Nijmeijer, Arian; Winnubst, Louis

doi:10.1016/j.memsci.2020.117839

Cited by 89 publications

(51 citation statements)

References 166 publications

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“…Performance-related parameters describe membrane functionality such as flux, rejection, and molecular weight cutoff (MWCO). Morphological parameters which include physical and chemical parameters describe the structure of the membrane [ 9 ]. Important morphological parameters include porosity and roughness of the membrane.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Selected Polymeric Membranes Used in the Separation and Recovery of Palladium-Based Catalyst Systems

et al. 2020

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Membrane separation processes tender a capable option for energy-demanding separation processes. Nanofiltration (NF) and reverse osmosis (RO) membranes are among the most explored, with a latent use in the chemical industry. In this study, four commercial membranes (NF90, NF270, BW30, and XLE) were investigated for their applicability based on the key structural performance characteristics in the recycling of Pd-based catalysts from Heck coupling post-reaction mixture. Pure water and organic solvent permeabilities, uncharged solute permeability, swelling, and catalyst rejection studies of the membranes were conducted as well as the morphological characterization using Fourier transform infrared, field emission gun scanning electron microscopy, and atomic force microscopy. Characterization results showed trends consistent with the manufactures’ specifications. Pure water and organic solvent fluxes generally followed the trend NF270 > NF90 > BW30 > XLE, with the solvent choice playing a major role in the separation process. Pd(PPh3)2Cl2 was well rejected by almost all membranes in 2-propanol; however, XLE rejects Pd(OAc)2 better at high pressure in acetonitrile. Our study, therefore, revealed that the separation and reuse of the two catalysts by NF90 at 10 bar resulted in 97% and 49% product yields with 52% and 10% catalyst retention for Pd(OAc)2 while Pd(PPh3)2Cl2. gave 87% and 6% yields with 58% and 36% catalyst retention in the first and second cycles, respectively. Considering, the influence of membrane–solute interactions in Pd-catalyst rejection, a careful selection of the polymeric membrane and solvent, a satisfactory separation, and recovery can be achieved.

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Section: Introductionmentioning

confidence: 99%

Characterization of Selected Polymeric Membranes Used in the Separation and Recovery of Palladium-Based Catalyst Systems

et al. 2020

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“…ceramic and metal) is an effective way to maintain the operation stability. However, the wide pore size distribution, low porosity, high-cost and few commercial products of inorganic NF membranes limit their large-scale application in bio-separation [41]. Although many organic polymers have poor resistance to the acid/alkali and organic solvent, their chemical stability and anti-swelling performance can be improved by introducing robust groups or monomers by various membrane modification techniques (Figure 4).…”

Section: Chemical Resistant Nf Membranesmentioning

confidence: 99%

Nanofiltration membrane for bio‐separation: Process‐oriented materials innovation

Cao

Chen

Wan

et al. 2021

Engineering in Life Sciences

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Nanofiltration (NF) with advantages of high efficiency and low‐cost has attracted increasing attentions in bio‐separation. However, the large‐scale application is limited by the inferior molecular selectivity, low chemical stability and serious membrane fouling. Many efforts, thus, have been devoted in NF materials design for specific applications to enhance the separation efficiency of bio‐products and increase membrane life‐time, as well as reduce the operating cost. This review summarized the recent progress of NF applications in bio‐separation, discussed various demands for NF membrane in the bio‐products purification and corresponding material innovations, finally proposed several practical suggestions for future research, which provided directions and guidance toward further product development and process industrialization.

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“…Organic molecules such as dyes and multi charged ions are successfully removed by NF. Reverse osmosis allows the retention of inorganic ions and organic molecules that are not retained by nanofiltration (Merlet 2020 andErdem 2017).…”

Section: Water Membrane Technologiesmentioning

confidence: 99%

“…SCIENTIFIC AND TECHNICAL NEWS ISSN 2218-9300 DOI: https://doi.org/10.20535/2218-9300272202020881722Матеріали та обладнання для водопідготовки nanosized molecules of polar/nonpolar solvents, have high permeability, long life, improved mechanical properties, and maximum low cost.To achieve such characteristics, scientists are now studying a new generation of membraneshybrids, which can combine chemical inertness, thermal stability, and mechanical strength of ceramic membranes with low cost and favorable modification of polymer membranes. Ways to create new composite hybrid membranes are divided into three types(Merlet 2020): inorganic (ceramic) material is dispersed on the surface of the polymer membrane with the formation of the mixed matrix membranes; the organic component is introduced directly into the ceramic mixture during gelation; the organic component is immobilized on the ceramic material surface by the formation of covalent or coordination bonds (grafting method).…”

mentioning

confidence: 99%

Ceramic Membranes: New Trends and Prospects (Short Review)

Сергієнко¹,

Dontsova²,

Янушевська³

et al. 2020

WPT STN

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This review is devoted to the features of the formation and application of ceramic membranes in water treatment technologies. The structure, composition and geometric configuration of ceramic membranes were analyzed. A comparison with polymer membranes was made, as a result of which it was determined that the use of ceramic membranes is safer for the environment and will contribute to the creation of sustainable water treatment technologies, which can be completely closed. Despite their widely recognized shortcomingsfragility and cost, the use of ceramic membranes can pay off quickly due to higher performance and longer service life. Besides, a promising direction in overcoming these shortcomings is the fabrication of cheap and highly functional ceramic membranes using nanotechnology, modification of their surface against biofouling and for disinfection and creation of hybrid membranes. Additionally, the perspective direction of ceramic membranes creation based on low-cost raw materials and the development of cheap anisotropic inorganic membranes is outlined. In general, it is noted that membrane technologies, while eliminating certain shortcomings, will be recognized as a universal and "green" method of wastewater treatment, which will address a wide range of water treatment issues.

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Hybrid ceramic membranes for organic solvent nanofiltration: State-of-the-art and challenges

Cited by 89 publications

References 166 publications

Characterization of Selected Polymeric Membranes Used in the Separation and Recovery of Palladium-Based Catalyst Systems

Characterization of Selected Polymeric Membranes Used in the Separation and Recovery of Palladium-Based Catalyst Systems

Nanofiltration membrane for bio‐separation: Process‐oriented materials innovation

Ceramic Membranes: New Trends and Prospects (Short Review)

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