一种使用氧化锌掺杂的MIL-88A降解亚甲基蓝染料的类芬顿法。
A Fenton-like method using ZnO doped MIL-88A for degradation of methylene blue dyes.
作者信息
Ren Gangli, Zhao Ke, Zhao Lang
机构信息
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 P. R. China
Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University Changchun 130118 P. R. China.
出版信息
RSC Adv. 2020 Nov 3;10(66):39973-39980. doi: 10.1039/d0ra08076d. eCollection 2020 Nov 2.
MIL-88A with different sizes was prepared by hydrothermal method by changing the content of ZnO. The samples were characterized by SEM, TEM, XRD, XPS and FT-IR. The synthesized material was used for the removal of methylene blue dye in a Fenton-like reaction, and the optimal reaction conditions were studied through single factor experiments. The experimental results show that when the molar ratio of the amount of ZnO introduced to FeCl·6HO is 1 : 1, the obtained materials have better catalytic performance than others. Under the optimal conditions, MIL-88A(FeZn) has the best catalytic performance for 300 mg L methylene blue. The removal rate can reach 96.15% within 40 minutes.
通过改变氧化锌的含量，采用水热法制备了不同尺寸的MIL-88A。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X射线衍射（XRD）、X射线光电子能谱（XPS）和傅里叶变换红外光谱（FT-IR）对样品进行了表征。将合成的材料用于类芬顿反应中去除亚甲基蓝染料，并通过单因素实验研究了最佳反应条件。实验结果表明，当引入的氧化锌与六水合氯化铁的摩尔比为1∶1时，所制备的材料具有比其他材料更好的催化性能。在最佳条件下，MIL-88A（FeZn）对300mg/L的亚甲基蓝具有最佳的催化性能。40分钟内去除率可达96.15%。
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