油页岩半焦固定草酸铁复合型催化剂降解亚甲基蓝的研究  

Study on the Degradation of Methylene Blue by the Composite Catalyst of Fe_(2)(C_(2)O_(4))_(3)Fixed on SC

作　　者：付峰峰 兰程辉 王硕[1] 王倩[1] 张媛[1] Fu Fengfeng;Lan Chenghui;Wang Shuo;Wang Qian;Zhang Yuan(Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学,甘肃兰州730070

出　　处：《广东化工》2025年第2期5-7,42,共4页Guangdong Chemical Industry

基　　金：兰州交通大学教学改革研究项目“创新创业教育与“材料物理化学”专业课教育融合模式研究”(1010041552)。

摘　　要：本文以油页岩半焦(SC)为载体,采用浸渍法合成复合催化剂Fe_(2)(C_(2)O_(4))_(3)/SC。系统研究了催化剂的化学组成及其非均相Fenton体系对亚甲基蓝(MB)溶液的催化降解效率。结果显示:Fe_(2)(C_(2)O_(4))_(3)/SC负载于SC上,提供大量的Fe^(2+)/Fe^(3+)。复合催化剂对MB有吸附作用,促进了催化氧化反应进程。当MB的初始浓度为500 mg/L、催化剂投入量为1.0 g/L、H_(2)O_(2)浓度为20 mmol/L、pH=6、t=60 min时,MB的降解效率达到了99%以上。催化体系中Cl^(-)、NO_(3)^(-)、HCO_(3)^(-)、HPO_(4)^(2-)等离子共存对MB的降解效率均有不同程度的影响。In this article,a composite catalyst of Fe_(2)(C_(2)O_(4))_(3)/SC was synthesized through impregnation method by using oil shale semi coke(SC)as a carrier.The chemical composition of the catalyst and its degradation efficiency on methylene blue(MB)solution were studied systematically.The results show that Fe_(2)(C_(2)O_(4))_(3)is loaded on SC and provides a large amount of Fe^(2+)/Fe^(3+).The composite catalyst has an adsorption effect on MB,promoting the catalytic oxidation reaction process.With the condition of 1.0 g/L catalyst dosage,20 mmol/L H_(2)O_(2)concentration,pH=6,and 60 minutes of the catalytic time,the degradation efficiency of MB with initial concentration of 500 mg/L reaches over 99%.The coexisting ions of Cl^(-),NO_(3)^(-),HCO_(3)^(-),HPO_(4)^(2-)in catalytic systems has different impact on the degradation efficiency of MB.

关 键 词：Fe_(2)(C_(2)O_(4))_(3)/SC 非均相Fenton催化 MB 降解 

分 类 号：TQ[化学工程]