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Radmanesh, Farzaneh (author), Tena, Alberto (author), Sudhölter, Ernst J. R. (author), Hempenius, Mark A. (author), Benes, Nieck E. (author)A series of cyclomatrix polyphosphazene films have been prepared by nonaqueous interfacial polymerization (IP) of small aromatic hydroxyl compounds in a potassium hydroxide dimethylsulfoxide solution and hexachlorocyclotriphosphazene in cyclohexane on top of ceramic supports. Via the amount of dissolved potassium hydroxide, the extent of...journal article 2023
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Radmanesh, F. (author), Tena, A. (author), Sudhölter, Ernst J. R. (author), Benes, N. E. (author)Highly selective thin-film composite membranes for hot hydrogen sieving are prepared via the pyrolysis of thin cyclomatric polyphenoxy phosphazene films that are prepared via a non-conventional interfacial polymerization of hexachlorocyclotriphosphazene with 1,3,5-trihydroxybenzene or m-dihydroxybenzene. The presence of the cyclic phosphazene...journal article 2023
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Masulli, Marco (author), Liu, Z. (author), Guo, Feng Zhi (author), Li, Xue (author), Sudhölter, Ernst J. R. (author), Kumar, N. (author)Chemical loss such as surfactants and alkalis by adsorption to reservoir rock surface is an important issue in enhanced oil recovery (EOR). Here, we investigated the adsorption behaviors of anionic surfactants and alkalis on silica for the first time as a function of temperature using quartz crystal microbalance with dissipation (QCM-D). The...journal article 2022
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Qian, Z. (author), Miedema, Henk (author), de Smet, Louis C.P.M. (author), Sudhölter, Ernst J. R. (author)We investigated in detail the permeation selectivity in the electro-dialysis of Na<sup>+</sup>, K<sup>+</sup>, Mg<sup>2+</sup> and Ca<sup>2+</sup> in both binary and quaternary mixtures using a supported liquid membrane (SLM). The SLM consisted of the organic liquid 2-nitrophenyl octyl ether (NPOE) containing a lipophilic anion, i.e. tetrakis...journal article 2022
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van Linden, N. (author), Wang, Yundan (author), Sudhölter, Ernst J. R. (author), Spanjers, H. (author), van Lier, J.B. (author)Recovery of ammonia (NH<sub>3</sub>) from residual waters offers various reuse opportunities, such as the production of fertilisers and the generation of electricity and heat. However, simultaneous evaporation of water (H<sub>2</sub>O) during NH<sub>3</sub> stripping under vacuum results in diluted recovered NH<sub>3</sub> gas with high H<sub...journal article 2022
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Qian, Z. (author), Miedema, Henk (author), Pintossi, Diego (author), Ouma, Marvin (author), Sudhölter, Ernst J. R. (author)High Na<sup>+</sup> levels are detrimental for most crops. Selective membranes provide the possibility for the selective removal of Na<sup>+</sup> while preserving beneficial ion species. The challenge is to separate two ion species of the same charge. This study evaluates the implementation of an electrodialysis (ED) system equipped with a...journal article 2022
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Radmanesh, Farzaneh (author), Sudhölter, Ernst J. R. (author), Tena, Alberto (author), Elshof, Maria G. (author), Benes, Nieck E. (author)An interfacial polymerization process is introduced for the fabrication of thermally stable cyclomatrix poly(phenoxy)phosphazenes thin-film composite membranes that can sieve hydrogen from hot gas mixtures. By replacing the conventionally used aqueous phase with dimethyl sulfoxide/potassium hydroxide, a variety of biphenol molecules are...journal article 2022
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Reducing anionic surfactant adsorption using polyacrylate as sacrificial agent investigated by QCM-DLiu, Z. (author), Hedayati, Pegah (author), Ghatkesar, M.K. (author), Sun, Weichao (author), Onay, Hayati (author), Groenendijk, Dirk (author), van Wunnik, Johannes (author), Sudhölter, Ernst J. R. (author)Surfactant losses by adsorption to rock surfaces make surfactant-based enhanced oil recovery economically less feasible. We investigated polyacrylate (PA) as a sacrificial agent in the reduction of anionic surfactant adsorption with focus on calcite surfaces by using quartz crystal microbalance with dissipation monitoring. It was found that...journal article 2021
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Merlet, Renaud (author), Winnubst, Louis (author), Nijmeijer, Arian (author), Amirilargani, M. (author), Sudhölter, Ernst J. R. (author), de Smet, Louis C.P.M. (author), Dorbec, Matthieu (author), Salvador Cob, Sara (author), Vandezande, Pieter (author)Organic solvent nanofiltration (OSN) is gradually expanding from academic research to industrial implementation. The need for membranes with low and sharp molecular weight cutoffs that are able to operate under aggressive OSN conditions is increasing. However, the lack of comparable and uniform performance data frustrates the screening and...journal article 2021
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Liu, Z. (author), Zhao, Ge (author), Brewer, Mark (author), Lv, Qichao (author), Sudhölter, Ernst J. R. (author)With the increasing demand for efficient extraction of residual oil, enhanced oil recovery (EOR) offers prospects for producing more reservoirs’ original oil in place. As one of the most promising methods, chemical EOR (cEOR) is the process of injecting chemicals (polymers, alkalis, and surfactants) into reservoirs. However, the main issue...review 2021
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Qian, Z. (author), Miedema, Henk (author), Sahin, Sevil (author), de Smet, L.C.P.M. (author), Sudhölter, Ernst J. R. (author)This study demonstrates the effective separation of alkali metal cations using a Supported Liquid Membrane (SLM) containing lipophilic, negatively charged borate moieties, operating under electro dialysis conditions. The selectivity of the membrane is essentially based on differences in dehydration energy and mobility between ion species. The...journal article 2020
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Poltorak, L. (author), van der Meijden, Nienke (author), Skrzypek, Sławomira (author), Sudhölter, Ernst J. R. (author), de Puit, M. (author)In this work, we have simultaneously examined, electrochemically driven deposition of three proteins (haemoglobin, acid phosphatase, and α-amylase) and silica films at a polarized liquid–liquid interface. The interfacial adsorption of the proteins occurs efficiently within the acidic pH range (pH = 2–4). The interfacial charge transfer...journal article 2020
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Ranque, P.G. (author), George, C. (author), Dubey, R. (author), van der Jagt, R. (author), Flahaut, Delphine (author), Fehse, M. (author), Jager, W.F. (author), Sudhölter, Ernst J. R. (author), Kelder, E.M. (author)Developing multifunctional polymeric binders is key to the design of energy storage technologies with value-added features. We report that a multigram-scale synthesis of perylene diimide polymer (PPDI), from a single batch via polymer analogous reaction route, yields high molecular weight polymers with suitable thermal stability and minimized...journal article 2020
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Liu, Z. (author), Bode, Vincent (author), Hadayati, Pegah (author), Onay, Hayati (author), Sudhölter, Ernst J. R. (author)We have investigated the conditions of colloidal stability of silica nanoparticles smaller than 100 nm for their applications in enhanced oil recovery (EOR), especially pertaining to chemical flooding processes. Using zeta sizer and dynamic light scattering techniques, the stability of silica nanoparticle (SNP) dispersions has been...journal article 2020
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Liu, Z. (author), Hedayati, Pegah (author), Sudhölter, Ernst J. R. (author), Haaring, Robert (author), Shaik, A.R. (author), Kumar, N. (author)Adsorption behavior of surfactants to rock surfaces is an important issue in oil recovery, especially in the process of surfactant flooding. The surfactant loss through adsorption to rock surfaces makes such process economically less feasible. Here, we investigated the adsorption behavior of anionic surfactants (alcohol alkoxy sulfate, AAS)...journal article 2020
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Borgul, Paulina (author), Rudnicki, Konrad (author), Chu, Liangyong (author), Leniart, Andrzej (author), Skrzypek, Sławomira (author), Sudhölter, Ernst J. R. (author), Poltorak, L. (author)In this work, the electrified liquid–liquid interface (LLI) was supported with the bare and polyelectrolyte modified fiberglass membranes. The permeability of these supports was then investigated with ion transfer voltammetry (ITV). This work descends from three mutually interconnected experimental tasks. (i) The study of an interfacial...journal article 2020
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Petrov, K.V. (author), Paltrinieri, L. (author), Poltorak, L. (author), de Smet, L.C.P.M. (author), Sudhölter, Ernst J. R. (author)A novel ion separation methodology using a cation-exchange membrane modified with iron oxide nanoparticles (Fe3O4 NPs) coated with polyhexamethylene guanidine (PHMG) is proposed. The separation is performed in an electrodialysis cell, where firstly phosphate is electro-adsorbed to the PHMG@Fe3O4 NP coating, followed by a desorption step by...journal article 2020
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Amirilargani, M. (author), Merlet, Renaud B. (author), Hedayati, Pegah (author), Nijmeijer, Arian (author), Winnubst, Louis (author), de Smet, L.C.P.M. (author), Sudhölter, Ernst J. R. (author)To the best of our knowledge, for the first time MIL-53(Al) and NH <sub>2</sub> -MIL-53(Al) modified α-alumina membranes are investigated for the adsorption of organic dyes from organic solvents. These new, modified membranes show excellent adsorption of high concentrations of Rose Bengal dye in methanol and isopropanol solutions.journal article 2019
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Liu, Z. (author), Ghatkesar, M.K. (author), Sudhölter, Ernst J. R. (author), Singh, Binder (author), Kumar, N. (author)Surfactants have the ability to mobilize residual oil trapped in pore spaces of matrix rocks by lowering the oil-water interfacial tension, resulting in a higher oil recovery. However, the loss of surfactants by adsorption onto the rock surface has become a major concern that reduces the efficiency of the surfactant flooding process. In this...journal article 2019
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Amirilargani, M. (author), Merlet, Renaud B. (author), Yokota, Giovana (author), Vermeij, Gijs (author), Delen, Guusje (author), Mandemaker, Laurens D.B. (author), Weckhuysen, Bert M. (author), de Smet, L.C.P.M. (author), Sudhölter, Ernst J. R. (author)Microporous polymer frameworks have attracted considerable attention to make novel separation layers owing to their highly porous structure, high permeability, and excellent molecular separation. This study concerns the fabrication and properties of thin melamine-based microporous polymer networks with a layer thickness of around 400 nm,...journal article 2019