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利用低温水热法在石墨烯涂覆的聚对苯二甲酸乙二醇酯(GPET)柔性衬底上制备了Fe掺杂ZnO (FZO)纳米复合材料。通过X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)对样品的晶体结构和微观形貌进行了表征。实验结果表明,Fe掺杂前后的ZnO纳米复合材料均为六方纤锌矿结构,且没有其他杂质峰出现。ZnO/GPET纳米薄膜为不规则的棒状,而Fe掺杂使其生长成横截面为正六边形的纳米棒状结构。光致发光(PL)谱表明,FZO/GPET使其电子-空穴对的复合效率大大降低。与ZnO/GPET纳米材料相比,FZO/GPET纳米复合材料具有更好的光催化活性,在紫外光照射下,对亚甲基蓝(MB)的降解率增加了7.1%。同时,对FZO/GPET的光催化机理进行分析,结果表明其光催化性能的提高得益于ZnO与Fe金属粒子的协同作用。
Abstract：The Fe-doped ZnO(FZO) nanocomposites were prepared on the flexible substrate of graphene coated polyethylene terephthalate(GPET) by low temperature hydrothermal method. The crystal structure and microscopic morphology of the samples were characterized by X-ray diffractometer(XRD) and field emission scanning electron microscope(FESEM). The XRD results showed that the ZnO nanocomposites before and after Fe doping are all hexagonal wurtzite structure, and no other impurity peaks appear. The ZnO/GPET nanofilms are irregular nanorods, while Fe doping made it grow into a nanorod structure with a regular hexagonal cross section. The PL spectrum showed that FZO/GPET greatly reduced the recombination efficiency of electron-hole pairs. Compared with pure ZnO nanomaterials, FZO/GPET nanocomposites have better photocatalytic activity, and the degradation rate of methylene blue(MB) increased by 7.1% under ultraviolet light. The photocatalytic mechanism of FZO/GPET was analyzed, and the results showed that the improvement of photocatalytic performance is attributed to the synergistic effect of ZnO and Fe metal particles.
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基本信息:
DOI：10.16521/j.cnki.issn.1001-9642.2020.05.004
中图分类号:TB383.2;O643.3;X703
引用信息:
[1]于琦,容萍,任帅,等.Fe掺杂ZnO纳米薄膜的制备与光催化性能研究[J].中国陶瓷,2020,56(05):22-26.DOI:10.16521/j.cnki.issn.1001-9642.2020.05.004.
基金信息:
国家自然科学基金青年科学基金（51502166）;; 陕西省教育厅专项项目（17JK0130）;; 陕西省重点研发计划一般项目-工业领域（2018GY-040）
2019-11-12
2019
2020-03-04
2020
2
2020-05-05
2020-05-05