FeOCl-COF的制备及其在非均相芬顿反应中的应用

Preparation of FeOCl-COF and Its Application in Heterogeneous Fenton Reaction

采用熔融浸渍-焙烧工艺制备FeOCl-COF复合催化剂,并应用于类芬顿高级氧化技术。以苯酚为目标污染物,在类芬顿体系下,探究了催化剂组分、剂量、pH、H_(2)O_(2)浓度、温度等因素对降解效率的影响。在复合催化剂FeOCl掺杂量为15%、投加量为0.7 g/L、H_(2)O_(2)浓度为5 mmol/L、pH 6.5和温度25℃的条件下,苯酚的去除率可达99%,反应活化能为53.91 kJ/mol。自由基捕获实验证明·OH是起主要降解作用的活性物种。紫外全波段扫描实验证实了污染物苯酚得到了有效的去除。本研究为FeOCl-COF在水处理中的实际应用提供了实验基础。

FeOCl-COF composite catalyst was prepared by melt impregnation roasting process and applied to Fenton-like advanced oxidation technology.The effects of catalyst components,dosage,pH,H_(2)O_(2) concentration and temperature on degradation efficiency were studied in the Fenton-like system.The removal rate of phenol can reach 99%with the activation energy of 53.91 kJ/mol under the conditions of 15%doping,0.7 g/L of the catalyst,5 mmol/L H_(2)O_(2),pH 6.5,and 25℃temperature.The free radical capture experiment proved that·OH was the main degradation active species.The UV full band scanning experiment confirmed that phenol was effectively removed.This study provides the experimental basis for the practical application of FeOCl-COF in water treatment.