Low-Fouling Antibacterial Reverse Osmosis Membranes via Surface Grafting of Graphene Oxide

Huang, Xinwei; Marsh, Kristofer L.; McVerry, Brian T.; Hoek, Eric M.V.; Kaner, Richard B.

doi:10.1021/acsami.6b05293

Cited by 118 publications

(50 citation statements)

References 29 publications

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“…The key component of these protective coatings is an active compound used in the antifouling coating-related technology [6]. At present, the antifouling active elements are diverse and range from the widely used metallic antifoulants and organic booster biocides [7], surface-structured compounds [8], protein adsorption inhibitors [9], quorum sensing inhibitors [10], and natural biocides [11], to microorganisms with antifouling properties [12]. The coating formulation enables maximizing the performance of the antifouling paint.…”

Section: Introductionmentioning

confidence: 99%

Antimacrofouling Efficacy of Innovative Inorganic Nanomaterials Loaded with Booster Biocides

Gutner-Hoch

Freitas

Oliveira

et al. 2018

JMSE

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Abstract:The application of nano-structured compounds has been increasing rapidly in recent years, in several fields. The use of engineered nano-materials as carriers of antifouling compounds is just beginning and already reveals clear advantages compared to bulk active compounds, such as slowed and controlled release, novel functionality, and high loading capacity. This present study assesses the antifouling efficacy of two nanostructured materials, spherical mesoporous silica nanocapsules (SiNC) and Zn-Al layered double hydroxides (LDH), loaded with two commercial biocides, zinc prithione (ZnPT) and copper pyrithione (CuPT). The study used adult mussels from three geographical regions, the Atlantic Ocean, Mediterranean Sea, and the Red Sea, to examine the efficacy of the innovative compounds. The efficacy of these compounds on larvae of the bryozoan Bugula neritina from the Mediterranean Sea and the Red Sea was also examined. The results of this study demonstrated the environmentally friendly properties of unloaded LDH against the two-model systems, adult mussels or bryozoan larvae. ZnPT entrapped in LDH demonstrated the most effective antifouling compound against the two model systems. A comparison of the impact of the two compounds on macrofouling organisms from the different marine habitats examined in this study indicates a distinction associated with the organisms' different ecosystems. The Red Sea mussels and bryozoans, representing a tropical marine ecosystem, yielded the highest efficacy values among tested Atlantic Ocean and Mediterranean Sea mussels and bryozoans.

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Section: Introductionmentioning

confidence: 99%

Antimacrofouling Efficacy of Innovative Inorganic Nanomaterials Loaded with Booster Biocides

Gutner-Hoch

Freitas

Oliveira

et al. 2018

JMSE

View full text Add to dashboard Cite

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“…The usual mechanisms to obtain a graft include free radical graft polymerization, 3 carbodiimide-induced graft copolymerization, 80 plasma polymerization, 81 UV-induced photo grafting, 82 surface-initiated atom transfer radical polymerization, 83 ringopening polymerization 71 , and radiation-induced graft copolymerization. 84 The effect is either an increase in salt retention traded off with a decrease in water flux, or the opposite effect.…”

Section: Chlorine Mitigationmentioning

confidence: 99%

Chlorination disadvantages and alternative routes for biofouling control in reverse osmosis desalination

et al. 2019

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With an ever-increasing human population, access to clean water for human use is a growing concern across the world. Seawater desalination to produce usable water is essential to meet future clean water demand. Desalination processes, such as reverse osmosis and multi-stage flash have been implemented worldwide. Reverse osmosis is the most effective technology, which uses a semipermeable membrane to produce clean water under an applied pressure. However, membrane biofouling is the main issue faced by such plants, which requires continuous cleaning or regular replacement of the membranes. Chlorination is the most commonly used disinfection process to pretreat the water to reduce biofouling. Although chlorination is widely used, it has several disadvantages, such as formation of disinfection by-products and being ineffective against some types of microbes. This review aims to discuss the adverse effect of chlorination on reverse osmosis membranes and to identify other possible alternatives of chlorination to reduce biofouling of the membranes. Reverse osmosis membrane degradation and mitigation of chlorines effects, along with newly emerging disinfection technologies, are discussed, providing insight to both academic institutions and industries for the design of improved reverse osmosis systems.

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“…126 Through the systematic macromolecular engineering of the block polymers, these coupling reactions should allow for a wide range of functional chemistries to be incorporated into membranes through the formation of resilient covalent bonds that form on a time scale consistent with the high throughput rollto-roll manufacturing of membranes on an industrial scale. 132,133 This, in turn, will allow the vast number of functional membrane chemistries for targeted water-based separations developed within academic settings to be translated to larger scales.…”

Section: Modifying the Pore Wall Chemistry For Advanced Solute Separamentioning

confidence: 99%

Fit-for-purpose block polymer membranes molecularly engineered for water treatment

et al. 2018

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Continued stresses on fresh water supplies necessitate the utilization of non-traditional resources to meet the growing global water demand. Desalination and hybrid membrane processes are capable of treating non-traditional water sources to the levels demanded by users. Specifically, desalination can produce potable water from seawater, and hybrid processes have the potential to recover valuable resources from wastewater while producing water of a sufficient quality for target applications. Despite the demonstrated successes of these processes, state-of-the-art membranes suffer from limitations that hinder the widespread adoption of these water treatment technologies. In this review, we discuss nanoporous membranes derived from self-assembled block polymer precursors for the purposes of water treatment. Due to their well-defined nanostructures, myriad chemical functionalities, and the ability to molecularly-engineer these properties rationally, block polymer membranes have the potential to advance water treatment technologies. We focus on block polymer-based efforts to: (1) nanomanufacture large areas of highperformance membranes; (2) reduce the characteristic pore size and push membranes into the reverse osmosis regime; and (3) design and implement multifunctional pore wall chemistries that enable solute-specific separations based on steric, electrostatic, and chemical affinity interactions. The use of molecular dynamics simulations to guide block polymer membrane design is also discussed because its ability to systematically examine the available design space is critical for rapidly translating fundamental understanding to water treatment applications. Thus, we offer a full review regarding the computational and experimental approaches taken in this arena to date while also providing insights into the future outlook of this emerging technology.

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Low-Fouling Antibacterial Reverse Osmosis Membranes via Surface Grafting of Graphene Oxide

Cited by 118 publications

References 29 publications

Antimacrofouling Efficacy of Innovative Inorganic Nanomaterials Loaded with Booster Biocides

Antimacrofouling Efficacy of Innovative Inorganic Nanomaterials Loaded with Booster Biocides

Chlorination disadvantages and alternative routes for biofouling control in reverse osmosis desalination

Fit-for-purpose block polymer membranes molecularly engineered for water treatment

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