2018 Volume 51 Issue 6 Pages 501-506
The present study presents a kind of novel ultrafiltration membrane which can be applied to purify water containing hexavalent chromium (Cr(VI)) ions and was prepared via the immersion phase inversion method. 2-Amino-4-thiazoleacetic acid was used as the additive of the novel ultrafiltration (UF) membrane and the membrane material was polyvinylidene fluoride (PVDF). The effects of technical parameters on the performance of the novel UF membranes were investigated. The prepared polymer blend membrane was characterized using Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and contact angle measurements. The experimental results showed that the pure water flux of the membrane was 318.11 L/m2·h, the contact angle was 81.2° and the adsorption capacity of chromium ion was 165 µg/cm2. The modified PVDF membrane presented better adsorption abilities for chromium ion than that of the traditional membrane.
