Preparation and performance of a charge-mosaic nanofiltration membrane with novel salt concentration sensitivity for the separation of salts and dyes

Xu, Ruizhang; Wang, Jiantao; Chen, Dandan; Li, Tianyu; Zheng, Zhuo; Yang, Feng; Chen, Jinyao; Kang, Jian; Cao, Ya; Xiang, Ming

doi:10.1016/j.memsci.2019.117472

Cited by 52 publications

(24 citation statements)

References 34 publications

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“…The FT-IR spectra of ODA, GO and GO-ODA were measured by Nicolet 6700 infrared spectrometer (Thermo Fisher Scientific Corp., Waltham, MA, USA) in the range of 400–4000 cm −1 . The samples were prepared by KBr compression method [ 31 , 32 , 33 ].…”

Section: Methodsmentioning

confidence: 99%

Impacts of Modified Graphite Oxide on Crystallization, Thermal and Mechanical Properties of Polybutylene Terephthalate

Wei

2021

Polymers

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In this study, the surface modification on graphene oxide (GO) was performed using octadecylamine (ODA). Furthermore, polybutylene terephthalate/GO (PBT/GO) composites were prepared to elucidate the role of GO surface modification on the mechanical performance, thermal stability and crystallization behavior. Results of Fourier transform infrared spectra (FT-IR), Raman spectrum, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and transmission electron microscope (TEM) revealed that ODA was successfully grafted on GO. Differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD), tensile test, Izod impact strength test and TGA were carried out on the PBT/GO composites. Results indicated that the addition of raw GO can enhance the crystallization temperature and degree of crystallinity and can slightly improve the thermal stability and tensile strength of the composites. However, the impact strength and elongation at break were seriously decreased owing to the poor compatibility between the GO and PBT matrix. Once the modified GO was added, the crystallization temperature and degree of crystallinity were greatly increased. The tensile strength increased greatly while the elongation at break and Izod impact strength were efficiently maintained; these were evidently higher than those of PBT/raw GO. Moreover, thermal stability was greatly enhanced. SEM (scanning electron microscope) observation results on the impact-fractured surface clearly confirmed the improved compatibility between the modified GO and PBT matrix. A related mechanism had been discussed.

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Section: Methodsmentioning

confidence: 99%

Impacts of Modified Graphite Oxide on Crystallization, Thermal and Mechanical Properties of Polybutylene Terephthalate

Wei

2021

Polymers

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“…WBG-II, a rare earth complex nucleating agent, is a commonly used commercial nucleating agent. It has a general formula Ca x La 1− x (LIG1) m (LIG2) n , where x and 1 − x are the proportion of Ca 2+ and La 3+ ions, respectively, and LIG1 and LIG2 are dicarboxylic acid and amide-type ligands [ 13 , 28 ].…”

Section: Methodsmentioning

confidence: 99%

Investigation on the Effects of MXene and β-Nucleating Agent on the Crystallization Behavior of Isotactic Polypropylene

Peng

Kang

Song³

et al. 2021

Polymers

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The effects of MXene on the crystallization behavior of β-nucleated isotactic polypropylene (iPP) were comparatively studied. The commonly used MXene Ti3C2Tx was prepared by selective etching and its structure and morphology were studied in detail. Then MXene and a rare earth β-nucleating agent (NA) WBG-II were nucleated with iPP to prepare samples with different polymorphic compositions. The crystallization, melting behavior, and morphologies of neat iPP, iPP/MXene, iPP/WBG-II, and iPP/MXene/WBG-II were comparatively studied. The crystallization behavior analysis reveals that a competitive relationship exists between MXene and WBG-II when they were compounded as α and β nucleating agents. In the system, the β-nucleation efficiency (NE) of WBG-II is higher than α-NE of MXene. The β-phase has relatively low thermal stability and would transform to α-phase when cooled below a critical temperature.

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“…The test conditions were vacuum degree of 5 Â 10 À9 mbar, monochromatic Alka source (Mono Alka), the energy of 1486.6 eV, the voltage of 15 kV, beam current of 15 mA, scanning mode of the analyzer of CAE, and the instrument work function of 4.2. [23][24][25][26] The X-ray Diffractometry (XRD) patterns of GO-A and GO-B were obtained through a diffractor (Ultima IV, Rigaku Corp., Japan). The wavelength of Cu Ka radiation was l ¼ 0.154 nm and the scanning rate was 10 min À1 .…”

Section: Characterization and Measurementmentioning

confidence: 99%

Effects of graphene oxide size on curing kinetics of epoxy resin

Chen

Jiang

et al. 2021

RSC Adv.

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Preparation and performance of a charge-mosaic nanofiltration membrane with novel salt concentration sensitivity for the separation of salts and dyes

Cited by 52 publications

References 34 publications

Impacts of Modified Graphite Oxide on Crystallization, Thermal and Mechanical Properties of Polybutylene Terephthalate

Impacts of Modified Graphite Oxide on Crystallization, Thermal and Mechanical Properties of Polybutylene Terephthalate

Investigation on the Effects of MXene and β-Nucleating Agent on the Crystallization Behavior of Isotactic Polypropylene

Effects of graphene oxide size on curing kinetics of epoxy resin

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