Influence of graphene oxide lateral size on the properties and performances of forward osmosis membrane

Akther, Nawshad; Yuan, Zhangfu; Chen, Yuan; Lim, Sung Kwan; Phuntsho, Sherub; Ghaffour, Noreddine; Matsuyama, Hideto; Shon, Ho Kyong

doi:10.1016/j.desal.2020.114421

Cited by 69 publications

(40 citation statements)

References 48 publications

(52 reference statements)

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“…In this case, the GO2 with a high population of significant length would block the MPD diffusion more efficiently and promote a reduction in the number and height of ridges formed (Figure 6c). This behavior has previously been observed by the incorporation of non-fractionated larger-size GO [57,58]. In addition, it is important to note that only GO2 was dispersed in a methanol/water mixture.…”

Section: Characterization Of Go-modified Membranesupporting

confidence: 73%

“…Moreover, the PA+GO3-PS membrane showed a more hydrophilic surface with a contact angle of 23.7 • (65% lower than the pristine membrane). This can be mainly attributed to the material GO3, which presents the highest oxygen functional group density because it has the lowest C/O ratio and smaller size sheet, and these features favor water adsorption [58]. Moreover, GO3 promotes a located stacking that produces the formation of zones with high peaks similar to nano knives (Scheme 1).…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, several authors have described that the GO size and GO concentration are key factors to improve the overall performance of the GO-TFC membranes [56][57][58]. Thus, on the one hand, membranes modified with a large size (GO > 10 µm) could show an abnormal surface morphology, detrimentally affecting desalination performance.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Multidimensional Graphene Oxide (GO) Sheets on Anti-Biofouling and Desalination Performance of Thin-Film Composite Membranes: Effects of GO Lateral Sizes and Oxidation Degree

et al. 2020

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The influence of the lateral size and the content of graphene oxide (GO) flakes in specific oxygenate functional groups on the anti-biofouling properties and performance of thin-film composite membrane (TFC) was studied. Three different multidimensional GO samples were prepared with small (500–1200 nm), medium (1200–2300 nm), and large (2300–3600 nm) size distribution, and with different degrees of oxidation (GO3 > GO2 > GO1), varying the concentration of the hydrogen peroxide amount during GO synthesis. GO1 sheets’ length have a heterogeneous size distribution containing all size groups, whilst GO2 is contained in a medium-size group, and GO3 is totally contained within a small-size group. Moreover, GO oxygenate groups were controlled. GO2 and GO3 have hydroxyl and epoxy groups at the basal plane of their sheets. Meanwhile, GO1 presented only hydroxyl groups. GO sheets were incorporated into the polyamide (PA) layer of the TFC membrane during the interfacial polymerization reaction. The incorporation of GO1 produced a modified membrane with excellent bactericidal properties and anti-adhesion capacity, as well as superior desalination performance with high water flow (133% as compared with the unmodified membrane). For GO2 and GO3, despite the significant anti-biofouling effect, a detrimental impact on desalination performance was observed. The high content of large sheets in GO2 and small sheet stacking in GO3 produced an unfavorable impact on the water flow. Therefore, the synergistic effect due to the presence of large- and small-sized GO sheets and high content of OH-functional groups (GO1) made it possible to balance the performance of the membrane.

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Section: Characterization Of Go-modified Membranesupporting

confidence: 73%

Section: Methodsmentioning

confidence: 99%

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Influence of Multidimensional Graphene Oxide (GO) Sheets on Anti-Biofouling and Desalination Performance of Thin-Film Composite Membranes: Effects of GO Lateral Sizes and Oxidation Degree

et al. 2020

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“…The CTA membrane shows more resistance to organic fouling than the commercial TFC membrane in both the FO and the Pressure retarded osmosis (PRO) mode [104]. For this reason, the majority of the studies in the FO literature use the CTA membrane for wastewater treatment applications [120,121] and are compared to TFC membranes. Some studies have reported excellent antifouling behaviour (for model organic foulants) for laboratory fabricated TFC membranes known as thin-film nanocomposite membranes [122].…”

Section: Characteristics Of Organic Foulants In Real Wastewatermentioning

confidence: 99%

Organic Fouling in Forward Osmosis: A Comprehensive Review

Yadav

Ibrar

Bakly

et al. 2020

Water

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Organic fouling in the forward osmosis process is complex and influenced by different parameters in the forward osmosis such as type of feed and draw solution, operating conditions, and type of membrane. In this article, we reviewed organic fouling in the forward osmosis by focusing on wastewater treatment applications. Model organic foulants used in the forward osmosis literature were highlighted, which were followed by the characteristics of organic foulants when real wastewater was used as feed solution. The various physical and chemical cleaning protocols for the organic fouled membrane are also discussed. The study also highlighted the effective pre-treatment strategies that are effective in reducing the impact of organic fouling on the forward osmosis (FO) membrane. The efficiency of cleaning methods for the removal of organic fouling in the FO process was investigated, including recommendations on future cleaning technologies such as Ultraviolet and Ultrasound. Generally, a combination of physical and chemical cleaning is the best for restoring the water flux in the FO process.

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“…Forward osmosis (FO) conversely is an emergent process in which the osmotic pressure drives the water from low to high salt concentration. Membrane development can impact the mostly used RO processes, but also other less commercially available methods such for example FO, 3,14,15 and membrane distillation (MD) 16 , 17 .…”

Section: Introductionmentioning

confidence: 99%

Advantages, limitations, and future suggestions in studying graphene-based desalination membranes

Castelletto

Boretti

2021

RSC Adv.

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Influence of graphene oxide lateral size on the properties and performances of forward osmosis membrane

Cited by 69 publications

References 48 publications

Influence of Multidimensional Graphene Oxide (GO) Sheets on Anti-Biofouling and Desalination Performance of Thin-Film Composite Membranes: Effects of GO Lateral Sizes and Oxidation Degree

Influence of Multidimensional Graphene Oxide (GO) Sheets on Anti-Biofouling and Desalination Performance of Thin-Film Composite Membranes: Effects of GO Lateral Sizes and Oxidation Degree

Organic Fouling in Forward Osmosis: A Comprehensive Review

Advantages, limitations, and future suggestions in studying graphene-based desalination membranes

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