钨掺杂α-FeOOH制备及染料废水降解  

Preparation of W-dopant α-FeOOH and degradation of dye wastewater

作　　者：张丽清[1] 郭子睿[1] 周华峰[1] 颜佩洋 冯盼盼[1] 

机构地区：[1]沈阳化工大学应用化学学院,沈阳110142

出　　处：《沈阳工业大学学报》2015年第1期59-63,共5页Journal of Shenyang University of Technology

基　　金：辽宁省自然科学基金资助项目(2014020139)

摘　　要：针对现今水污染问题,采用空气氧化法在碱性条件下制备了α-Fe OOH和钨掺杂α-Fe OOH来降解污水中的染料.利用傅里叶红外光谱仪、扫描电子显微镜、X射线衍射仪和光电子能谱仪等对样品的形貌和结构进行了表征.以α-Fe OOH作为Fenton反应的铁源并与过氧化氢形成Fenton体系,考察该体系对染料甲基橙和酸性铬兰k溶液的降解性能.结果表明,在最佳条件下,当加入钨掺杂α-Fe OOH时,甲基橙和酸性铬兰k的降解率分别达到99.8%和81.0%;同样条件下,当加入无掺杂α-Fe OOH时,甲基橙和酸性铬兰k的降解率只有75.2%和61.3%.Aiming at the present serious situation of water pollution,the undoped α-Fe OOH and W-dopantα-Fe OOH were prepared with the air oxidation synthetic method to degrade the dye in the wastewater. The microstructure and morphology of prepared sample were characterized with Fourier transform infrared spectrometer( FT-IR),scanning electron microscope( SEM),X-ray diffractometer( XRD) and X-ray photoelectron spectroscopy( XPS). The prepared α-Fe OOH was used as the iron source of Fenton reaction,and formed the Fenton system with H2O2. The degradation properties of methyl orange( M O) and acid chrome blue k( ACBk) solution in the Fenton system were investigated. The results showthat under the optimum condition,the degradation rate of M O and ACBk in the W-dopant α-Fe OOH can reach 99. 8% and81%,respectively. Under the same optimum condition,the degradation rate of M O and ACBk in the undoped α-Fe OOH is only 75% and 61. 3%,respectively.

关 键 词：钨掺杂 催化降解 FENTON反应 甲基橙 酸性铬兰K 傅里叶红外光谱仪 光电子能谱仪 

分 类 号：O643.36[理学—物理化学] X788[理学—化学]