Mn(II)-Fe(II)-MCF的制备及催化性能  

Preparation and catalytic performance of Mn(II)-Fe(II)-MCF

作　　者：孙宏[1] 张泽 宋裕卓 裴笠舟 SUN Hong;ZHANG Ze;SONG Yv-zhuo;PEI Li-zhou(College of Chemistry and Chemical Engineering,Qiqihar 161000,China;Heilongjiang Qiqihar Ecological Environment Mornitoring Center,Qiqihar 161000,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006 [2]黑龙江省齐齐哈尔生态环境监测中心,黑龙江齐齐哈尔161000

出　　处：《化学研究与应用》2022年第1期214-218,共5页Chemical Research and Application

基　　金：黑龙江省齐齐哈尔市科技局项目(SFGG-201705)资助。

摘　　要：以改性玉米苞叶纤维为载体(MCF),负载Mn(II)和Fe(II)制备了Mn(II)-Fe(II)-MCF复合材料,催化H_(2)O_(2)氧化水中染料。通过傅立叶变换红外/近红外成像系统和扫描电子显微镜对其结构和形貌进行表征。实验结果表明:当染料浓度为10 mg·L^(-1),Mn(II)-Fe(II)-MCF用量为4 g·L^(-1),H_(2)O_(2)初始浓度为1.56 mmol·L^(-1),Mn(II)-Fe(II)-MCF对四种染料的催化效率明显不同。阳离子蓝X-GRRL(CBX-GRRL)降解效果最好,其次是甲基橙(MO)、次甲基蓝(MB)和罗丹明B(RhB)。对染料的氧化反应进行动力学分析,MO的降解反应为二级反应,CBX-GRRL、MB和RhB的降解反应均为一级反应。Mn(II)-Fe(II)-MCF适合催化氧化偶氮染料废水。With modified corn bract fibrous as raw materials,supported Mn(II)and Fe(II)(Mn(II)-Fe(II)-MCF)catalyst was prepared and was applied to oxidize dyes in H_(2)O_(2) system.The product was characterized by Fourier transform infrared near infrared imaging system(FTIR)and scanning electron microscope(SEM).The experimental results showed that a 10 mg·L^(-1) dye solution mixed with 4 g·L^(-1) of catalyst and 1.56 mmol·L^(-1) H_(2)O_(2) for 60 min,the efficiencies of Mn(II)-Fe(II)-MCF in degradation of different dyes were markedly different.The dye degradation rates followed the order of cationic blue X-GRRL>MO>MB>RhB.By the oxidation reaction kinetic analysis of dyes,the degradation reaction of methyl orange was secondary,and the degradation reactions of cationic blue X-GRRL,methyl-blue and rhodamine B were all primary.Mn(II)-Fe(II)-MCF was suitable for treatment of azo dye wastewater.

关 键 词：Mn(II)-Fe(II)-MCF复合材料 催化 玉米苞叶纤维 染料 类芬顿反应 

分 类 号：O643.3[理学—物理化学]