Layer-by-Layer Deposition of Titanium Dioxide Nanoparticles on Polymeric Membranes: A Life Cycle Assessment Study

Zuin, Stefano; Scanferla, Petra; Brunelli, Andrea; Marcomini, Antonio; Wong, John E.; Wennekes, Wilco; Genné, Inge

doi:10.1021/ie302979d

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…To further improve the supported membrane performance, one of the most promising methods of surface modification is the deposition of nano-sized layers on the polymer layer surface [ 33 , 34 ]. This may be easily achieved by a simple, modern, and cost-effective layer-by-layer (Lbl) technique [ 35 , 36 , 37 , 38 ]. Rapid developments of the Lbl method have included the deposition of PEL on a film, providing tailored characteristics.…”

Section: Introductionmentioning

confidence: 99%

Modification Approaches to Enhance Dehydration Properties of Sodium Alginate-Based Pervaporation Membranes

et al. 2021

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Transport characteristics of sodium alginate (SA) membranes cross-linked with CaCl2 and modified with fullerenol and fullerene derivative with L-arginine for pervaporation dehydration were improved applying various approaches, including the selection of a porous substrate for the creation of a thin selective SA-based layer, and the deposition of nano-sized polyelectrolyte (PEL) layers through the use of a layer-by-layer (Lbl) method. The impacts of commercial porous substrates made of polyacrylonitrile (PAN), regenerated cellulose, and aromatic polysulfone amide were investigated by scanning electron microscopy (SEM), atomic force microscopy (AFM), standard porosimetry method, and water filtration. The effects of PEL combinations (such as poly(sodium 4-styrene sulfonate) (PSS)/SA, PSS/chitosan, PSS/polyacrylic acid, PSS/poly(allylamine hydrochloride)) and the number of PEL bilayers deposited with the Lbl technique on the properties of the SA and SA/fullerene derivative membranes were studied by SEM, AFM, and contact angle measurements. The best characteristics were exhibited by a cross-linked PAN-supported SA/fullerenol (5%) membrane with five PSS/SA bilayers: permeation flux of 0.68–1.38 kg/(m2h), 0.18–1.55 kg/(m2h), and 0.50–1.15 kg/(m2h), and over 99.7, 99.0, and 89.0 wt.% water in the permeate for the pervaporation dehydration of isopropanol (12–70 wt.% water), ethanol (4–70 wt.% water), and tetrahydrofuran (5.7–70 wt.% water), respectively. It was demonstrated that the mutual application of bulk and surface modifications essentially improved the membrane’s characteristics in pervaporation dehydration.

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Section: Introductionmentioning

confidence: 99%

Modification Approaches to Enhance Dehydration Properties of Sodium Alginate-Based Pervaporation Membranes

et al. 2021

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“…Second, the self-assembled layer method is not suitable or useful for multi-layer fabrication [26]. To create a multi-layer film on the membrane surface, a relatively modern approach is applied, which is layer-by-layer (LbL) deposition [27][28][29][30]. This method is simple, inexpensive and suitable for many polymer materials; it is also easily automated.…”

Section: Introductionmentioning

confidence: 99%

Investigation of new modification strategies for PVA membranes to improve their dehydration properties by pervaporation

Dmitrenko

Penkova

Kuzminova

et al. 2018

Applied Surface Science

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Novel supported membranes based on polyvinyl alcohol (PVA) were developed using two strategies: first, by the modification of the PVA network, via so-called bulk modification, with the formation of the selective layer accomplished through the introduction of fullerenol and/or poly(allylamine hydrochloride), and second, by the functionalization of the surface with successive depositions of multilayered films of polyelectrolytes, such as poly(allylamine hydrochloride) and poly(sodium 4-styrenesulfonate) on the PVA surface. The membrane surface modifications were characterized by scanning electron microscopy and contact angle measurements. The modified PVA membranes were examined for their dehydration transport properties by the pervaporation of isopropyl alcohol-water (80/20% w/w), which was chosen as a model mixture. Compared with the pristine PVA membrane, the main improvement was a marked increase in permeance. It was found that the surface modifications mainly gave rise to a higher global flux but with a strong reduction in selectivity. Only the combination of both bulk and surface modifications with PEL could significantly increase the flux with a high water content in the permeate (over 98%). Lastly, it should be noted that this study developed a green procedure to prepare innovative membrane layers for dehydration, making use of only water as a working medium.

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“…Based on the intermolecular interactions among the constructed materials, various functional building blocks have been introduced in the construction of multilayers, and different kinds of functions have been realized in the resulting films. Among the plentiful building blocks in the LbL process, nanoparticles have attracted broad attention because of their inherent unique properties and the extraordinary functions of the assembled materials for optical, magnetic, electronic, mechanical, catalytic, and biological applications. One of the issues involved in the LbL assembly of nanoparticles, especially LbL assembly in nonwater phases using hydrogen bonding or coordination bonding as driving forces, is the aggregation of nanoparticles after they are deposited on substrates.…”

Section: Introductionmentioning

confidence: 99%

Fabricating Transparent Multilayers with UV and Near-IR Double-Blocking Properties through Layer-by-Layer Assembly

Jiang

Cheng

Liu

et al. 2013

Ind. Eng. Chem. Res.

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We have fabricated a transparent composite film with UV and near-infrared (near-IR) double-blocking properties using polyethyleneimine (PEI), indium tin oxide (ITO), and zinc oxide (ZnO) through layer-by-layer (LbL) assembly under an ultrasonic field. By applying ultrasonic-assisted LbL assembly, the aggregation of nanoparticles has been excluded, resulting in a flatter and more transparent (visible range) film than that obtained under conventional LbL assembly. Moreover, the effects of the ultrasonic field are discussed in terms of the fact that the transformation between the states of PEI/ITO films assembled with or without ultrasonic field was reversible. To enhance the UV-blocking properties in the most damaging region (290−350 nm), we incorporated ZnO nanoparticles, which can block UV rays below 350 nm, and the obtained hybrid multilayer displayed a high transparency of over 85% (visible range) and good UV-/near-IR double-blocking effects that shielded nearly 80% of the UV rays under 350 nm and 80% of the IR radiation above 1600 nm.

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Layer-by-Layer Deposition of Titanium Dioxide Nanoparticles on Polymeric Membranes: A Life Cycle Assessment Study

Cited by 8 publications

References 33 publications

Modification Approaches to Enhance Dehydration Properties of Sodium Alginate-Based Pervaporation Membranes

Modification Approaches to Enhance Dehydration Properties of Sodium Alginate-Based Pervaporation Membranes

Investigation of new modification strategies for PVA membranes to improve their dehydration properties by pervaporation

Fabricating Transparent Multilayers with UV and Near-IR Double-Blocking Properties through Layer-by-Layer Assembly

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