锌镁铝类水滑石负载碘氧化铋的制备与表征

doi:10.11944/j.issn.1000-0518.2019.01.180059

摘要/Abstract

摘要：

采用水热法将碘氧化铋(BiOI)负载到锌镁铝类水滑石(ZnMgAl-HTLCs)上制备得到BiOI/ZnMgAl-HTLCs可见光催化剂。通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)、傅里叶变换红外光谱仪(FTIR)等技术手段考察了BiOI负载质量分数、反应温度、反应时间及加料顺序等因素对BiOI/ZnMgAl-HTLCs光催化剂结构及形貌的影响。结果表明,在制备BiOI/ZnMgAl-HTLCs材料中先加入锌镁铝类水滑石,负载质量分数为40%的BiOI,反应温度为140 ℃,反应时间为24 h,可以得到结晶度高和形貌较好的BiOI/ZnMgAl-HTLCs。

关键词: 锌镁铝类水滑石, 碘氧化铋, 光催化剂

Abstract:

The ZnMgAl hydrotalcite-like compounds(HTLCs) supported bismuth oxyiodide(BiOI)(BiOI/ZnMgAl-HTLCs) visible light photocatalyst was prepared by hydrothermal method. The effects of BiOI loading mass fraction, reaction temperature, reaction time, and addition sequence on the structure and morphology of the BiOI/ZnMgAl-HTLCs photocatalyst were investigated by X-ray diffraction(XRD), scanning electron microscopy(SEM) and Fourier transform infrared spectroscopy(FTIR). The results show that BiOI/ZnMgAl-HTLCs with high crystallinity and good morphology can be obtained by firstly adding BiOI in 40% mass fraction to ZnMgAl-HTLCs at 140 ℃, and keeping reaction for 24 h.

Key words: ZnMgAl hydrotalcite-like compounds, bismuth oxyiodide, photocatalyst

李佳祁, 付大友, 袁东, 徐菁. 锌镁铝类水滑石负载碘氧化铋的制备与表征[J]. 应用化学, 2019, 36(1): 83-90.

LI Jiaqi, FU Dayou, YUAN Dong, XU Jing. Preparation and Characterization of ZnMgAl Hydrotalcite Supported BiOI[J]. Chinese Journal of Applied Chemistry, 2019, 36(1): 83-90.

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