木瓜叶ZnO/TiO2纳米复合材料的绿色合成、表征及光催化活性研究

Safira Salsabilla, D. K. Maharani
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引用次数: 0

摘要

本研究以番木瓜叶提取物为原料合成ZnO/TiO2 (ZT)纳米复合材料,并对其光催化活性进行评价。采用溶胶-凝胶法制备了ZnO/TiO2 4 g (ZT4)浓度变化和ZnO/TiO2 6 g (ZT6)浓度变化的ZT纳米复合材料。以亚甲基蓝(MB)为模型染料,对其光催化性能进行了测试。ZT4紫外光(40 mg)和ZT6紫外光(60 mg)的活性趋势最高,为87%。ZnO/TiO2 (ZT)纳米复合材料的平均晶粒尺寸约为12 nm,结晶度为92%;ZT6纳米复合材料的平均晶粒尺寸约为6 nm,结晶度为97%。FTIR结果表明,ZT4在393.48 cm-1 ~ 987.55 cm-1指纹区和ZT6在401.19 cm-1 ~ 864.11 cm-1指纹区存在C=C基团拉伸烯烃、芳香醛的C- h拉伸振动、醇和Zn-Ti-O的O-H拉伸振动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
GREEN SYNTHESIS, CHARACTERIZATION, PHOTOCATALYTIC ACTIVITY OF ZnO/TiO2 NANOCOMPOSITE FROM Carica papaya LEAVES
This study aims to synthesize a ZnO/TiO2 (ZT) nanocomposite from Carica papaya leaf extract and evaluate its photocatalytic activity. The ZT nanocomposite was prepared using the sol-gel method with ZnO/TiO2 4-gram (ZT4) concentration variations and ZnO/TiO2 6-gram (ZT6). Methylene Blue (MB) was used as a model dye to test its photocatalytic properties. The trend for most activity is shown by ZT4 UV light 40 mg and ZT6 UV light (60 mg), which is 87%. Characterization of ZnO/TiO2 (ZT) nanocomposite using FTIR and XRD The ZT4 nanocomposite had an average crystallite size of approximately 12 nm and crystallinity percentage of 92%, whereas the ZT6 nanocomposite had an average crystallite size of approximately 6 nm and crystallinity percentage of 97%. FTIR resulted in some group C=C stretching alkene, C-H stretching vibrations of an aromatic aldehyde, and O-H stretching of alcohols and Zn-Ti-O in the fingerprint region 393.48 cm-1 to 987.55 cm-1 for ZT4 and in the fingerprint region 401.19 cm-1 to 864.11 cm-1 for ZT6.
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