CAJ | 학술논문

采用溶胶-凝胶和浸渍-提拉而后煅烧的方法得到了在可见光作用下具有光催化性能的纳米 ZnO/聚醋酸乙烯酯(PVAc)复合薄膜.通过正交设计实验,研究了PVAc的浓度、煅烧温度、煅烧时间、复合薄膜层数和附加ZnO膜层数等工艺因素对光催化性能的影响,并通过SEM,XRD和FT-IR对其进行了分析与表征.在室内普通照明用白炽灯作用下,以甲基橙溶液为催化对象, PVAc含量10%的、在250℃煅烧30min所得到的纳米ZnO/PVAc复合薄膜的光催化性能的实验结果表明,复合薄膜对甲基橙降解率达60%,而使用250℃煅烧30min所得到的纳米ZnO4层薄膜或PVAc4层薄膜催化的甲基橙溶液的浓度变化很小.
채용용효-응효화침지-제랍이후단소적방법득도료재가견광작용하구유광최화성능적납미 ZnO/취작산을희지(PVAc)복합박막.통과정교설계실험,연구료PVAc적농도、단소온도、단소시간、복합박막층수화부가ZnO막층수등공예인소대광최화성능적영향,병통과SEM,XRD화FT-IR대기진행료분석여표정.재실내보통조명용백치등작용하,이갑기등용액위최화대상, PVAc함량10%적、재250℃단소30min소득도적납미ZnO/PVAc복합박막적광최화성능적실험결과표명,복합박막대갑기등강해솔체60%,이사용250℃단소30min소득도적납미ZnO4층박막혹PVAc4층박막최화적갑기등용액적농도변화흔소.
The nanometer ZnO/PVAc composite film with high photocatalytic properties under visible light irradiation had been prepared by sol—gel process, dip-coating process and calcinations and characterized by SEM, XRD and FT-IR. The effects of PVAc concentration, calcining temperature and calcining time, layers of nanometer ZnO/PVAc composite film, and attachment layers of nanometer ZnO film on photocatalytic properties of composite film were studied by orthogonal method. Under the irradiation of incandescent lamp, the photocatalytic properties of prepared nanometer ZnO/PVAc composite film were tested by using methyl orange solution. The results indicated that the decolonization proportion of methyl orange was 60% when using composite film, as comparison, the decolonization proportion wasn't changing when using pure nanometer ZnO film or pure PVAc film.