期刊
MATERIALS RESEARCH BULLETIN
卷 141, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2021.111376
关键词
Photocatalytic membranes; PVDF/ZnO:Ln (Sm, La, Er) catalyst; Organic pollutants; Photodegradation kinetics
资金
- Romanian Ministry of Research, Innovation and Digitization, CNCS/CCCDI - UEFISCDI within PNCDI III [PN-III-P1-1.1-TE-2019-0594]
New hybrid materials based on lanthanide-doped ZnO nanoparticles reinforced in PVDF membranes were prepared using the electrospinning method, and they have not been reported before. Photocatalysts with inorganic nanostructures for degrading organic dyes under visible light irradiation were obtained, with the best performance observed in the PVDF/ZnO:La (37%) membrane. The photocatalytic stability of the materials was also demonstrated after multiple cycles of use.
New hybrid materials based on lanthanide (Ln) doped ZnO nanoparticles (Ln=Sm,La,Er) reinforced in PVDF membranes were prepared by electrospinning method, materials that have not been reported so far. Photocatalysts with 22 % and 37 % content of inorganic nanostructures for degradation of some organic dyes (Methylene Blue (MB) and Rhodamine B (RhB)) under visible light irradiation were obtained. The materials were evaluated in terms of crystalline structure (XRD), surface morphology (SEM), mechanical and adsorption/ desorption properties. The highest values of the color removal efficiency were observed for PVDF/ZnO:La (37 %) membrane, and they were of 96.33 % for MB dye degradation, and 93.36 % for RhB degradation, respectively. Depending on the material type and initial dye concentration, the rate constant values were between 10 3 and 10(-2) min(-1). Moreover, photocatalytic stability was determined for PVDF/ZnO:La (37 %) after ten cycles (98 %), indicating that recovery and reuse can be done successfully.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据