PDF (2997K)
摘要
通过溶胶凝胶-自蔓延燃烧-高温焙烧法制备了Cu-Fe双金属尖晶石型催化剂,采用BET、EDX、XRD、SEM等分析方法对催化剂进行表征。结果表明,制备的催化剂样品均产生了典型的尖晶石型结构,且在600℃下焙烧制得催化剂样品催化活性最高。同时设计了催化H2O2降解模拟苯酚废水的实验,结果表明,当H2O2质量浓度为1.6 mg/L、催化剂质量浓度为2.5 g/L、反应时间为120 min时,苯酚和COD的去除率分别为98.4%和90.8%;催化剂使用9次后,苯酚和COD的去除率分别为79.6%和72.2%。
Abstract
A Cu-Fe bimetallic spinel-type catalyst is prepared through sol-gel,self-propagating combustion and high-temperature roasting methods.The samples are characterized by BET,EDX,XRD and SEM.The results show that all samples forms spinel structure and the catalyst sample calcined at 600℃ has the highest catalytic activity among these samples.The experiments are designed for the degradation of simulated phenol-containing wastewater and the experimental results show that the removal rates of phenol and COD can reach 98.4% and 90.8%,respectively when H2O2 dosage is 1.6 mg·L-1,catalyst dosage is 2.5 g·L-1 and reaction time is 120 min.The removal rates of phenol and COD can still reach 79.6% and 72.2%,respectively after the catalysts are used nine times.
关键词
溶胶凝胶
/
苯酚
/
尖晶石
/
高温焙烧
/
自蔓延燃烧
Key words
sol-gel
/
phenol
/
spinel
/
high-temperature roasting
/
self-propagating combustion
Author summay
张蕴(1993-),男,硕士研究生,研究方向为工业废水处理,asdzzx@qq.com
Cu-Fe尖晶石型催化剂催化H2O2处理苯酚废水的研究[J].
现代化工, 2019, 39(5): 109-113 DOI:10.16606/j.cnki.issn0253-4320.2019.05.024