Study on phosphorylated Zr-doped hybrid silicas/PSF composite membranes for treatment of wastewater containing oil

Zhang, Yuqing; Jin, Zhenhua; Wang, Yueling; Cui, Ping

doi:10.1016/j.memsci.2010.06.002

Cited by 25 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The porosity existed in MIP play an important role for above results. [18,19] Due to the sufficient self-assembly between SSO and functional monomers, the quantities of free loci in MIP network decreased dramatically compared with that of NMIP, [20] which meant interaction, among polymer chains and between polymer and solvent, was decreased, and the phase separation difficulty decreased correspondingly. Owing to the phase separation showed a negative correlation with the interaction, and the strong interaction meant a more serous structure collapse, [16] the pores formed by the pore-foaming agent, chloroform, collapsed and jammed badly in NMIP than that of MIP during drying.…”

Section: Determination Of Adsorption Isothermmentioning

confidence: 99%

Preparation and adsorption property of solanesol molecular imprinted polymers

Long

Chen

Liu

et al. 2015

Designed Monomers and Polymers

View full text Add to dashboard Cite

Molecular imprinted polymers of solanesol (SSO-MIPs) were synthesized through solution polymerization using solanesol (SSO) as the template molecule, N-vinylpyrrolidone (NVP) and acrylic acid (AA) as functional monomers, ethyleneglycol dimethacrylate (EGDMA) as cross-linker and azodiisobutyronitrile (AIBN) as initiator. Focused on the adsorption capacity and separation degree of MIP-SSO to SSO from the mixture of SSO and Triacontanol (TAL), the effects of the monomers, cross-linker and initiators on them were investigated and optimized. Finally, the structure of MIP-SSO prepared under the optimal conditions was characterized using Fourier transform infrared and scanning electron microscope. To obtain the more objective results, non-imprinted molecular polymers (NMIPs) prepared under the same condition was also characterized as contrast.

show abstract

Section: Determination Of Adsorption Isothermmentioning

confidence: 99%

Preparation and adsorption property of solanesol molecular imprinted polymers

Long

Chen

Liu

et al. 2015

Designed Monomers and Polymers

View full text Add to dashboard Cite

show abstract

“…With changing regulations and limited availability of fresh water, treatments for water produced by oil operations and oily wastewaters have gained increasing interest . Conventional approaches for treating oily wastewaters have included de‐emulsification, gravity separation and skimming, coagulation, dissolved air flotation, and flocculation . The small quantity of oil remaining in the water after the conventional methods must be reduced to an acceptable limit before the water can be discharged into seas or rivers.…”

Section: Introductionmentioning

confidence: 99%

“…[32][33][34] Conventional approaches for treating oily wastewaters have included de-emulsification, gravity separation and skimming, coagulation, dissolved air flotation, and flocculation. [35][36][37] The small quantity of oil remaining in the water after the conventional methods must be reduced to an acceptable limit before the water can be discharged into seas or rivers. Membrane separation can effectively meet those standards.…”

Section: Introductionmentioning

confidence: 99%

Processing of alumina‐coated glass‐bonded silicon carbide membranes for oily wastewater treatment

Kim

Yeom

Kim

et al. 2017

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Crack‐free γ‐Al2O3‐coated glass‐bonded SiC membranes were successfully prepared using a simple heat‐treatment and dip‐coating process at a temperature as low as 850°C in air. The changes in the porosity, flexural strength, flux, and oil rejection rate of the membranes were investigated while changing the initial SiC particle size. Larger SiC particles led to bigger pores, resulting in higher flux in the oily water and a lower oil rejection rate. The SiC membranes with a support prepared from 10 μm SiC powder showed an exceptionally high oil rejection rate (99.9%) with a feed oil concentration of 600 mg/L at an applied pressure of 101 kPa. The typical porosity, flexural strength, steady state flux, and oil rejection rate of the alumina‐coated SiC membrane were ~45%, ~81 MPa, 1.78×10−5 m3 m−2s−1, and 99.9%, respectively.

show abstract

“…STSNs/PSF composite membranes were prepared by phase inversion methods [11]. Firstly, STSN were added to DMAC in a 500ml flask under stirring at 60°C.…”

Section: Preparation Of Stsns/psf Composite Membranesmentioning

confidence: 99%

“…Though the capability of polymer membrane can be enhanced by adding inorganic oxide particles mentioned above, further enhancement is limited because there are few Lewis acid sites and hydroxide radicals on the surface of these stoichiometric monocomponent inorganic oxide particles. To solve the above problem, Zhang et al prepared phosphorylated Zr-doped hybrid silica (SZP)/PSF composite membranes [11] and sulfated Y-doped zirconia (SZY)/PSF composite membranes [12], evidently improving the hydrophilic property and anti-fouling ability of PSF membranes. It is because that on the one hand, these nonstoichiometric inorganic oxide particles have Lewis acid sites, point defects and lots of exposed hydroxide radicals on the surface; on the other hand, acidified particles can increase the number of hydroxide radicals on the particle surface, which can form a lot of hydrogen bonds with molecules and further enhance the hydrophilicity of the particles.…”

Section: Introductionmentioning

confidence: 99%