铁酸锰纳米球的溶剂热法制备及其可见光催化性能  

Solvothermal Preparation of Manganese Ferrite Nanospheres and Their Visible Light Photocatalytic Performance

作　　者：沈昱[1] 魏浩然[1] 吴艳波[1] 王连峰[1] 李瑞函[1] 解卓学 

机构地区：[1]大连交通大学环境与化学工程学院,辽宁大连116028

出　　处：《大连交通大学学报》2015年第2期67-70,共4页Journal of Dalian Jiaotong University

基　　金：绿色催化四川省高校重点实验室开放课题资助项目(LYJ1209)

摘　　要：利用溶剂热法制备了铁酸锰纳米球材料,并考察了其对罗丹明B溶液的可见光催化降解效果.SEM和XRD分析结果表明:所制备材料为尖晶石型结构,微观形貌为均匀分散、直径约300 nm的球形颗粒;光催化降解实验表明:所制备的铁酸锰纳米球材料对罗丹明B溶液具有较强的可见光催化降解能力,100 m L 10 mg/L的罗丹明B溶液,p H值为4,催化剂用量为30 mg,加入少量硝酸根离子,光催化60min时溶液的降解率就达到100%.Manganese ferrite nanospheres were prepared by solvothermal process and their visible light photocatalytic degradation of Rhodamine B （Rh B） solution were investigated. SEM and XRD analyses show that the prepared materials are spinel and spherical morphology with about 300 nm in dimeter. The results of photocatalytic degradation experiments indicate that the materials have strong ability to photocatalytic degradation of Rh B. The degradation rate of Rh B solution （100 ml 10 mg/L, pH =4） can reach 100 % with the synergistic action of the manganese ferrite nanospheres （30 rag）, a small amount of nitrate ions addition and visible light irradiation for 60 rain.

关 键 词：铁酸锰 纳米球 溶剂热 可见光催化 罗丹明B 

分 类 号：TB383.1[一般工业技术—材料科学与工程]