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. 2014 Jan 8;12(1):18.
doi: 10.1186/2052-336X-12-18.

Preparation and characterization of poly (ethersulfone) nanofiltration membranes for amoxicillin removal from contaminated water

Maryam Omidvar  1 , Seyed Mahmoud Mousavi, Mohammad Soltanieh, Ali Akbar Safekordi
Affiliations

Preparation and characterization of poly (ethersulfone) nanofiltration membranes for amoxicillin removal from contaminated water

Maryam Omidvar et al. J Environ Health Sci Eng. .

Abstract

Nowadays, antibiotics such as amoxicillin have been entered in water bodies. Nanofiltration has been proposed as an attractive technology for removal of antibiotics from aquatic environment instead of conventional wastewater treatment. In this paper, novel asymmetric flat sheet nanofiltration membranes were prepared via immersion precipitation technique and by using the poly(ethersulfone)/Brij®S100/Poly(vinylpirrolidone)/1-methyl-2-pyrolidone casting solutions. The effect of addition of Brij®S100 as a non-ionic surfactant additive as well as concentration of poly (ethersulfone) on morphology, wettability, pure water flux and rejection of amoxicillin were studied using the scanning electron microscopy, water contact angle apparatus and experimental set-up. The results indicated that the addition of Brij®S100 to the casting solutions resulted in the formation of membranes with higher hydrophilicity and relatively noticeable rejection of amoxicillin up to 99% in comparison with unmodified poly(ethersulfone) membrane. Contrary to amoxicillin rejection, pure water flux was decreased when higher poly(ethersulfone) concentration was employed.

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Figures

Figure 1
Figure 1
Chemical structures of PES, Brij ® S100 and amoxicillin.
Figure 2
Figure 2
Schematic diagram of experimental set up.
Figure 3
Figure 3
SEM cross-sectional images of the prepared membranes with 17 wt. % PES with two magnifications.
Figure 4
Figure 4
SEM cross-sectional images of the prepared membranes with 21 wt. % PES with two magnifications.
Figure 5
Figure 5
The effect of Brij®S100 on the formation of PES membrane by phase inversion.
Figure 6
Figure 6
Contact angle vs. Brij®S100 concentration.
Figure 7
Figure 7
PWF and Rejection of amoxicillin (AMX) vs. Brij®S100 concentration for 17 wt. % PES.
Figure 8
Figure 8
PWF and Rejection of amoxicillin (AMX) vs. Brij®S100 concentration for 21 wt. % PES.
See this image and copyright information in PMC

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