SFZr-TiO_(2)纳米管改性PVDF膜在含油废水处理中的应用  

Application of SFZr-TiO_(2)Nanotube Modified PVDF Membrane in the Treatment of Oily Wastewater

作　　者：刘平丽 饶治 杨宇婷 吕婉铃 LIU Pingli;RAO Zhi;YANG Yuting;LYU Wanling(Gandong University,Fuzhou 344000,China)

机构地区：[1]赣东学院,江西抚州344000

出　　处：《云南化工》2025年第4期39-42,共4页Yunnan Chemical Technology

基　　金：江西省教育厅科技项目(GJJ218608);赣东学院院长基金(YZJJ202204)。

摘　　要：为增强PVDF膜的亲水和抗污染性能,以Fe_(x)Zr_(1-x)O_(2)固体超强酸包覆TiO_(2)纳米管粒子(SFZr-TiO_(2)纳米管)为添加剂,采用相转化法制备了SFZr-TiO_(2)纳米管/PVDF复合膜。采用SEM和液滴形状分析仪对其结构和表面亲水性进行了表征,采用含油污水超滤法评价其抗污性能。结果表明,当SFZr-TiO_(2)纳米管粒子与PVDF质量掺杂比为10%时,SFZr-TiO_(2)纳米管在PVDF膜中分散较均匀,复合膜的孔隙率最大(72.62%),水接触角最小(49.2°)。并且与纯PVDF膜相比,处理含油废水时油截留率达到95.18%。因此,SFZr-TiO_(2)纳米管作为一种有效添加剂显著提高了PVDF膜的亲水性能。In order to enhance the hydrophilic and anti-pollution properties of PVDF membrane,SFZr-TiO_(2)nanotube/PVDF composite membrane was prepared by phase conversion method with Fe_(x)Zr_(1-x)O_(2)solid superacid coated TiO_(2)nanotube particles(SFZr-TiO_(2)nanotube)as additive.The structure and surface hydrophilicity were characterized by SEM and droplet shape analyzer,and the antifouling performance was evaluated by oil-containing wastewater ultrafiltration method.The results show that when the mass doping ratio of SFZr-TiO_(2)nanotubes to PVDF particles is 10∶100,SFZr-TiO_(2)nanotubes are uniformly dispersed in PVDF membrane,the composite membrane has the largest porosity(72.62%)and the smallest water contact Angle(49.2°).Compared with pure PVDF membrane,the oil retention rate reached 95.18%.Therefore,SFZr-TiO_(2)nanotubes,as an effective additive,can significantly improve the hydrophilic properties of PVDF membranes.

关 键 词：PVDF膜 SFZr-TiO_(2)纳米管 亲水性 油截留率 

分 类 号：TQ501[化学工程] X703[环境科学与工程—环境工程]