Preparation and characterization of PVDF/TiO2 mixed matrix membrane via in situ colloidal precipitation method

Teow, Yeit Haan; Ahmad, A.L.; Lim, JitKang; Ooi, B. S.

doi:10.1016/j.desal.2012.03.019

Cited by 141 publications

(60 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…15 This can be proven by the cross-sectional SEM images as well as the EDX line mapping in Figure 3. 15 This can be proven by the cross-sectional SEM images as well as the EDX line mapping in Figure 3.…”

Section: Resultsmentioning

confidence: 74%

Studies on the surface properties of mixed‐matrix membrane and its antifouling properties for humic acid removal

Teow¹,

Ahmad²,

Lim³

et al. 2012

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

A major factor limiting the use of ultrafiltration (UF) membrane in water treatment process is the membrane fouling by natural organic matter such as humic acid (HA). In this work, neat PVDF and PVDF/TiO 2 mixed-matrix membranes were prepared and compared in terms of their antifouling properties. Two commercial types of TiO 2 namely PC-20 and P25 were embedded to prepare the mixed matrix membranes via in situ colloidal precipitation method. The contact angles for the mixed-matrix membranes were slightly reduced while the zeta potential was increased (more negatively charged) compared with the neat membrane. Filtration of HA with the presence of Ca 2þ demonstrated that mixed-matrix membrane could significantly mitigate the fouling tendency compared with the neat membrane with flux ratio (J/J 0 ) of 0.65, 0.70, and 0.82 for neat PVDF membrane, PVDF/TiO 2 mixed-matrix membrane embedded with P25 and PC-20, respectively. PC-20 with higher anatase polymorphs exhibited better antifouling properties due to its hydrophilicity nature.

show abstract

Section: Resultsmentioning

confidence: 74%

Studies on the surface properties of mixed‐matrix membrane and its antifouling properties for humic acid removal

Teow¹,

Ahmad²,

Lim³

et al. 2012

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…The most important challenge in this method is the stability of TiO 2 colloids in coagulation bath. This was obtained with pH control using HCl and ultrasonic irradiation by Teow et al . However, using acid and decreasing pH of coagulation bath may cause some problems for membrane morphology.…”

Section: Introductionmentioning

confidence: 94%

Application of Colloidal Precipitation Method Using Sodium Polymethacrylate as Dispersant for TiO₂/PVDF Membrane Preparation and Its Antifouling Properties

Tavakolmoghadam¹,

Mohammadi

2018

Polymer Engineering & Sci

View full text Add to dashboard Cite

Immobilized titanium dioxide (TiO2) nanoparticles on flat sheet polymeric membranes have been found effective for fouling reduction in recent researches. The main challenge in this field is to obtain ultrafine and stable nanodispersions. In this study, composite polyvinylidene fluoride/TiO2 (PVDF/TiO2) ultrafiltration membranes were prepared via phase inversion and colloidal precipitation method. Stable TiO2 suspensions were prepared using sodium polymethacrylate as dispersant and sonication without altering of the coagulation bath pH. The effect of different concentrations of TiO2 nanoparticles in the coagulation bath was also investigated. The membrane morphology (distribution of nanoparticles on the membrane surface) was observed by scanning electron and atomic force microscopy. Properties of the neat and the composite membranes were also characterized using energy dispersive X‐ray spectroscopy and contact angle and membrane porosity measurements. The neat and the composite membranes were further investigated in terms of bovine serum albumin rejection and flux decline in cross flow filtration experiments. The results showed that the PVDF/TiO2 composite membrane using dimethylacetamide/triethyl phosphate as solvent and 0.05 g/L of TiO2 in the coagulation bath exhibits improved antifouling properties. POLYM. ENG. SCI., 59:E422–E434, 2019. © 2018 Society of Plastics Engineers

show abstract

“…In order to produce PVDF-TiO 2 MMMs, PVDF solution layers were immersed into the coagulation bath with TiO 2 colloidal suspension as described in our previous report [8][9][10][11][12]. The preparation conditions of the membranes were summarized in Table 1.…”

Section: Membrane Formation and In-situ Particle Embedmentmentioning

confidence: 99%

Study on PVDF-TiO2 mixed-matrix membrane behaviour towards humic acid adsorption

Teow

Ooi

Ahmad

2017

Journal of Water Process Engineering

Self Cite

View full text Add to dashboard Cite

Preparation and characterization of PVDF/TiO2 mixed matrix membrane via in situ colloidal precipitation method

Cited by 141 publications

References 35 publications

Studies on the surface properties of mixed‐matrix membrane and its antifouling properties for humic acid removal

Studies on the surface properties of mixed‐matrix membrane and its antifouling properties for humic acid removal

Application of Colloidal Precipitation Method Using Sodium Polymethacrylate as Dispersant for TiO₂/PVDF Membrane Preparation and Its Antifouling Properties

Study on PVDF-TiO2 mixed-matrix membrane behaviour towards humic acid adsorption

Contact Info

Product

Resources

About

Preparation and characterization of PVDF/TiO2 mixed matrix membrane via in situ colloidal precipitation method

Cited by 141 publications

References 35 publications

Studies on the surface properties of mixed‐matrix membrane and its antifouling properties for humic acid removal

Studies on the surface properties of mixed‐matrix membrane and its antifouling properties for humic acid removal

Application of Colloidal Precipitation Method Using Sodium Polymethacrylate as Dispersant for TiO2/PVDF Membrane Preparation and Its Antifouling Properties

Study on PVDF-TiO2 mixed-matrix membrane behaviour towards humic acid adsorption

Contact Info

Product

Resources

About

Application of Colloidal Precipitation Method Using Sodium Polymethacrylate as Dispersant for TiO₂/PVDF Membrane Preparation and Its Antifouling Properties