Preparation and Characterization of PVDF Modified Ultrafiltration Membrane for Purification of Hg in Water

Abstract:

The 2-thiol benzothiazole was blended in Polyvinylidene fluoride (PVDF) membrane to prepare a kind of PVDF modified ultrafiltration membrane that could be used to remove mercury ion in water treatment. The water flux and retention rate of BSA of obtained PVDF modified ultrafiltration membrane was 222 L/m²·h and 92.33% respectively. The membrane performance were characterized by infrared spectroscopy (FT-IR) and water contact angle measurement. The results showed that, the PVDF modified membrane presented better adsorption ability for mercury ion than the traditional PVDF membrane. After 4 phases of adsorption/desorption, the modified membrane maintained a mercury ion adsorption amount of 0.264 mg/cm² and the desorption rate could reached 94%.

• Periodical: Key Engineering Materials (Volumes 575-576)
• Pages: 265-269
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.575-576.265
• Online since: September 2013
• Authors: Xiu Ju Wang, Xing Jie Lu, Wei Ying Xu, Jia Chen Zhu, Li Guo Wang
• Keywords: Mercury Ion, Polyvinylidene Fluoride (PVDF), Ultrafiltration Membrane (UF)

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