影响二氧化钛（TiO）固载光催化膜降解雷马素蓝（RTB）染料的因素。
Factors affecting the degradation of remazol turquoise blue (RTB) dye by titanium dioxide (TiO) entrapped photocatalytic membrane.
机构信息
School of Engineering, RMIT University, Melbourne, VIC, 000, Australia.
College of Engineering and Science, Victoria University, Melbourne, VIC, 8001, Australia.
出版信息
J Environ Manage. 2020 Oct 15;272:111090. doi: 10.1016/j.jenvman.2020.111090. Epub 2020 Jul 21.
This study investigated the photocatalytic degradation of remazol turquoise blue (RTB) dye using titanium dioxide (TiO) entrapped polyvinylidene fluoride (PVDF) membrane synthesized by non-solvent induced phase separation method. Numerous experiments were conducted to investigate the effects of catalyst loading in membranes, the concentration of dye, feed temperature, pH of the solution, and the addition of HO to the dye solution on the removal of dye. Results were compared with the performance of virgin PVDF and modified PVDF/TiO membranes. The experimental results indicated that the optimum TiO loading in the membrane was 2 wt%, which enhanced the membrane morphology, permeability, and dye removal performance. The rate of photocatalytic degradation dropped with the increase in dye concentration. The photocatalytic efficiency of the membrane depends on the pH and the temperature of the solution.
本研究采用非溶剂致相分离法制备了负载二氧化钛（TiO）的聚偏氟乙烯（PVDF）膜，考察了其光催化降解雷马素蓝（RTB）染料的性能。通过大量实验考察了催化剂在膜中的负载量、染料浓度、进料温度、溶液 pH 值以及向染料溶液中添加 HO 对染料去除率的影响。并将结果与原始 PVDF 和改性 PVDF/TiO 膜的性能进行了比较。实验结果表明，膜中 TiO 的最佳负载量为 2wt%，这提高了膜的形态、渗透性和染料去除性能。光催化降解速率随染料浓度的增加而降低。膜的光催化效率取决于溶液的 pH 值和温度。
Zotero 插件