α-Fe2O3@SiO2@Cu2O核壳结构复合物的合成及其光催化性质的研究
Synthesis and photocatalytic properties of α-Fe2O3@SiO2@Cu2O core-shell structure complexes
郭小峰 1刘诗语 1杨磊 1付宇凡 1李欣欣 1杨丰韩1
作者信息
- 1. 重庆交通大学 材料科学与工程学院,重庆 400074
- 折叠
摘要
采用水热法,以FeCl3·6H2O和NaH2 PO4·2H2O为原料,制备了α-Fe2O3 纳米颗粒,然后以TEOS作为硅源,CTAB作为造孔剂,制备α-Fe2O3 包覆SiO2 的介孔材料,然后对SiO2 包覆的α-Fe2O3 掺杂过渡金属Cu2O,得到α-Fe2O3@SiO2@Cu2O核壳结构复合物,并且利用XRD对制备的产品进行表征,进行光催化活性的评价.结果表明,以高压汞灯为光源,亚甲基蓝浓度为15 mg/L,当催化剂用量为5 mg,90 min的降解率达到47.3%.
Abstract
α-Fe2O3 Nanoparticles are prepared using FeCl3·6H2O and NaH2 PO4·2H2O as raw materi-als by hydrothermal method.α-Fe2O3 Coated mesoporous material of SiO2 were synthesized using TEOS as the silicon source and CTAB as the pore forming agent,and then α-Fe2O3@SiO2@Cu2O core-shell struc-ture composites are prepared by combining transition metal CuO2 and α-Fe2O3 coated mesoporous material of SiO2.Samples are characterized using XRD,and the photocatalytic activity was evaluated.The effect of photocatalytic activity on the prepared product are done using methylene blue.The results showed that degradation rate for methylene blue(15 mg/L)reached 47.3%within 90 min with a catalyst dosage of 5 mg under a high-pressure mercury lamp as the light source.
关键词
α-Fe2O3纳米材料/SiO2介孔材料/过渡金属Cu2O/光催化/亚甲基蓝Key words
α-Fe2O3 nanomaterials/SiO2 mesoporous materials/transition metal Cu2O/photocatalysis/methylene blue引用本文复制引用
基金项目
重庆市科学技术委员会基础与前沿研究计划(cstc2014jcyjA2/30017)
重庆交通大学实验教学改革与研究基金重点项目(Syj201703)
大学生创新创业训练计划项目(X202010618077)
大学生创新创业训练计划项目(S202110618005)
出版年
2024
NETL
NSTL
万方数据