Efficient removal of partially hydrolysed polyacrylamide in polymer-flooding produced water using photocatalytic graphitic carbon nitride nanofibres
Efficient removal of partially hydrolysed polyacrylamide in polymer-flooding produced water using photocatalytic graphitic carbon nitride nanofibres
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DOI：
10.1016/j.arabjc.2019.08.004
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发表时间：
2020-02-01
影响因子：
6
通讯作者：
Mohd, T. A. T.
中科院分区：
文献类型：
--
作者：
Alias, Nur Hashimah;Jaafar, Juhana;Mohd, T. A. T.
在这项工作中，利用静电纺丝技术成功制备了含有石墨相氮化碳（GCN）光催化剂的聚丙烯腈（PAN）纳米纤维（GCN/PAN纳米纤维）。使用场发射扫描电子显微镜（FESEM）、透射电子显微镜（TEM）、元素分析仪、X射线粉末衍射（XRD）、傅里叶变换红外光谱（FTIR）和紫外 - 可见 - 近红外光谱对所制备的GCN/PAN纳米纤维的物理化学性质进行了分析。在悬浮光催化反应器中，GCN/PAN纳米纤维在紫外光照射180分钟后对部分水解聚丙烯腈（HPAM）的光催化降解率达到90.2%。结果表明，GCN/PAN纳米纤维对HPAM污染物的光降解是由于PAN纳米纤维对HPAM的吸附以及GCN对HPAM的光降解的协同作用。这项研究为通过对液体可渗透的自支撑纳米纤维毡进行光催化降解来去除聚合物驱采出水（PFPW）中的HPAM提供了一种见解，该纳米纤维毡作为一种潜在的有前景的材料可用于工业应用。（C）2019由爱思唯尔出版集团代表沙特国王大学制作和托管。
In this work, graphitic carbon nitride (GCN) photocatalyst-incorporated polyacrylonitrile (PAN) nanofibres (GCN/PAN nanofibres) were successfully prepared using electrospinning technique. The physicochemical properties of the fabricated GCN/PAN nanofibres were analysed using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), elemental analyser, X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and UV-vis-NIR spectroscopy. The photocatalytic degradation by GCN/PAN nanofibres exhibited 90.2% photodegradation of partially hydrolysed polyacrylonitrile (HPAM) after 180 min under UV light irradiation in a suspension photocatalytic reactor. The results suggest that the photodegradation of HPAM contaminant by GCN/PAN nanofibres was due to the synergetic effects of HPAM adsorption by the PAN nanofibres and HPAM photodegradation by the GCN. This study provides an insight into the removal of HPAM from polymer-flooding produced water (PFPW) through photocatalytic degradation of liquid-permeable self-supporting nanofibre mats as a potentially promising material to be used in industrial applications. (C) 2019 Production and hosting by Elsevier B.V. on behalf of King Saud University.