Corrigendum to “Synergetic effects of oxidized carbon nanotubes and graphene oxide on fouling control and anti-fouling mechanism of polyvinylidene fluoride ultrafiltration membranes” [J. Membr. Sci. 448 (2013) 81–92]

Zhang, Jiguo; Xu, Zhiwei; Shan, Mingjing; Zhou, Baoming; Li, Yinglin; li, Baodong; Niu, Jiarong; Qian, Xiaoming

doi:10.1016/j.memsci.2013.11.017

Cited by 34 publications

(49 citation statements)

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“…Compared to the pristine PVDF membrane, three blended membranes present the obvious ridge-and valley-surface texture. However, Xu et al [17][18][19] has confirmed that higher membrane-surface roughness neither have any effect on the surface energy of the material itself, nor it cause a negative effect on membrane performance, and on the contrary, membrane hydrophilicity would be remarkably enhanced due to the increased surface area and the formation of cavities, which in turn controls the permeating flux and fouling resistance of membranes. 56%, 81% and 99% for rGO, PDAAQ and PDAAQ/rGO blended membranes, respectively.…”

Section: Characterization Of Pdaaq/rgo/pvdf Membranesmentioning

confidence: 99%

“…proteins, which are prone to deposition and absorption onto membrane surface or blocking surface pore, resulting in low water flux, high hydraulic resistance and high operation & maintenance (O&M) costs. 7 During the preparation process, the commonly used nanoparticles/naomaterials such as TiO 2 , [8][9][10][11] SiO 2 , 12-14 Al 2 O 3 , 11,15 ZnO, 16 and graphene oxide [17][18][19][20][21][22][23] can be facilely incorporated into PVDF membranes through blending them in coagulation bath or in polymer solution. 6 The blending of inorganic nanoparticles to form polymerinorganic nanoparticles composite membranes presents an interesting approach to significantly improve the hydrophilic property and fouling resistance of polymer membranes.…”

Section: Introductionmentioning

confidence: 99%

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Hydraulic power and electric field combined antifouling effect of a novel conductive poly(aminoanthraquinone)/reduced graphene oxide nanohybrid blended PVDF ultrafiltration membrane

et al. 2015

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a Membrane fouling is still a bottleneck problem towards the wide-spread applications of membrane bioreactors (MBRs) for wastewater treatment/reclamation. Thus, membrane modification has ever been a hot topic for improving separation efficiency and antifouling ability of membrane. In this study, a novel conductive and hydrophilic poly(1,5-diaminoanthraquinone)/reduced graphene oxide (PDAAQ/rGO) nanohybrid blended polyvinylidene fluoride (PVDF) membrane was prepared by phase inversion method. The fabricated PDAAQ/rGO/PVDF membrane was characterized by different characterization techniques. The effect of additives content on membrane structure and antifouling performance was evaluated. An obvious growth in pore size/porosity and surface roughness was observed for 1.5 wt% PDAAQ/rGO naohybrid blended membrane, which caused higher hydrophilicity, pure water flux and fouling resistance than those of the pristine PVDF membrane. By applying an appropriate external electric field of 1.0 V/cm, the conductive PDAAQ/rGO nanohybrid blended PVDF membrane exhibited an admirable electrocatalytic activity towards oxygen reduction reaction, and 8.84 mg L -1 H 2 O 2 was accumulated within 30 min electrolysis. In the meanwhile, the conductive PDAAQ/rGO/PVDF membrane displayed superior fouling removal ability along with higher water flux recovery ratio after the electric cleaning. Applying bovine serum albumin as model protein and 1.0 V/cm external electric field, the fouling rate of conductive PDAAQ/rGO/PVDF membrane was decreased by about 63.5% when compared with the control test during long-term continuous-flow membrane filtration process. The cross-flow shear stress induced by aeration scouring and the increased electrostatic repulsion force induced by external electric field and the in-situ electro-generated H 2 O 2 contributed to the prominent fouling mitigation and fouling resistance.

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Section: Characterization Of Pdaaq/rgo/pvdf Membranesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydraulic power and electric field combined antifouling effect of a novel conductive poly(aminoanthraquinone)/reduced graphene oxide nanohybrid blended PVDF ultrafiltration membrane

et al. 2015

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“…The dipole moments of α crystallites are oriented in opposite directions, resulting in a zero net polarization. [9][10][11][12] More more hydrophobic polymers (e.g. [3][4][5] Thank to these features, applications of PVDF membranes are currently found in pressure-driven water-and waste-treatment treatment (e.g., microfiltration, ultrafiltration and membrane bioreactor), and membrane contactors operations (e.g., membrane distillation, acid gas absorption and stripping, volatile organic compounds removal).…”

Section: Introductionmentioning

confidence: 99%

From hydrophobic to hydrophilic polyvinylidenefluoride (PVDF) membranes by gaining new insight into material's properties

et al. 2015

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a This work provides an easy and versatile strategy to manufacture novel polyvinylidenefluoride (PVDF) membranes by solution casting and phase separation technique displaying tailored physicochemical and microstructural features depending on the opportune combination of functionalization by blending chemical additives (multiwalled carbon nanotubes, MWCNTs) and manufacturing procedure. The systematic study of the effect of (i) polymer concentration, (ii) use of pore forming additive (LiCl), and (iii) type and concentration of MWCNTs, on PVDF crystalline composition and membrane microstructure, highlights the strong relationships of these parameters with the wettability, fouling and transport attributes of the formed membranes. The results provide the key to discriminate membrane preparation conditions favoring hydrophilic, low fouling, and highly selective PVDF-MWCNTs membranes, for water-treatment applications in pressure-driven membrane operations, from conditions favoring the formation hydrophobic and waterproof membranes, to be used in the membrane contactors field. Also, they open exciting perspectives for a more effective development of PVDF-based nanostructured membranes for advanced separations based on a comprehensive investigation and understanding of material properties. 3 Furthermore, surface roughness modulation is known to

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“…Additionally, synergistic effects between GO and other inorganic particles were also investigated [31][32][33][34] . For example, Zhang et al 33,34 found that the agglomeration of GO could be effectively mitigated by the long and tortuous oxidized carbon nanotubes (OMWCNTs) in a flat-sheet PVDF membrane because OMWCNTs can bridge adjacent GO and improve the fillers' dispersibility.…”

Section: Introductionmentioning

confidence: 99%

Simultaneously covalent and ionic bridging towards antifouling of GO-imbedded nanocomposite hollow fiber membranes

et al. 2015

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A group of GO-imbedded nanocomposite hollow fiber membranes was investigated for oily water treatment, with the objectives of improving GO-polymer interfacial interaction and membrane anti-fouling properties via the formation of a simultaneously covalent and ionic inter-network. 1-Methylnicotinamide chloride (MNA) was selected to bridge the two parties.The reaction scheme was proposed and evidenced by FTIR and XRD analyses. The resultant membranes were systematically studied with respect to membrane microstructure, ultrafiltration performance and fouling behaviors. The responses of the membranes to oilwater fouling were evaluated by the resistance-in-series model and cyclic UF experiments with periodic backwashing. It appears that the membrane with a GO:MNA ratio of 9:1 was found to exhibit the most favorable properties for oil-water separation. Substantial reductions in reversible, irreversible and adsorption-induced resistances as well as flux drop were observed. Generally, the superior anti-fouling properties of the nanocomposite membrane benefit from the contributions of (1) the hydrophilic nature of GO and MNA, (2) appropriate GO:MNA ratio and (3) synergetic effects between GO and MNA to overcome the interfacial voids and produce a balanced membrane structure. In addition to unveiling the importance of interfacial interaction between GO nanofillers and polymer matrices, this work may pave the way to design advanced GO-imbedded anti-fouling nanocomposite membranes for the years to come.

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Corrigendum to “Synergetic effects of oxidized carbon nanotubes and graphene oxide on fouling control and anti-fouling mechanism of polyvinylidene fluoride ultrafiltration membranes” [J. Membr. Sci. 448 (2013) 81–92]

Cited by 34 publications

References 0 publications

Hydraulic power and electric field combined antifouling effect of a novel conductive poly(aminoanthraquinone)/reduced graphene oxide nanohybrid blended PVDF ultrafiltration membrane

Hydraulic power and electric field combined antifouling effect of a novel conductive poly(aminoanthraquinone)/reduced graphene oxide nanohybrid blended PVDF ultrafiltration membrane

From hydrophobic to hydrophilic polyvinylidenefluoride (PVDF) membranes by gaining new insight into material's properties

Simultaneously covalent and ionic bridging towards antifouling of GO-imbedded nanocomposite hollow fiber membranes

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