李增鹏,戴剑锋,王华,何川,马宏,江小鱼

• 1:甘肃省太阳能发电系统重点实验室
• 2:酒泉职业技术学院
• 3:兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室
• 4:浙江利马革业有限公司

摘要(Abstract)：

采用同轴静电纺丝技术制备了Bi_2O_3/BiFeO_3复合材料，并对其进行了不同温度(450、500和550℃)的煅烧处理。采用X射线衍射仪(XRD)、扫描电镜(SEM)、透射电镜(TEM)、能谱仪(EDS)、X射线光电子能谱仪(XPS)、光致发光光谱仪(PL)、拉曼光谱仪(Raman)以及紫外-可见光吸收光谱仪(UV-VIS)等研究了煅烧温度对Bi_2O_3/BiFeO_3复合材料的物相结构、微观形貌、元素分布、表面化学状态和光催化性能的影响。结果表明：不同温度煅烧后的Bi_2O_3/BiFeO_3复合材料呈现为纳米微片层状堆叠结构，XPS和Raman光谱分析进一步表明成功制备了Bi_2O_3/BiFeO_3复合异质结；在光催化降解甲基橙(MO)的试验中，煅烧温度为500℃的Bi_2O_3/BiFeO_3复合材料对MO的光催化降解效率最高，为55.1%;当单质Bi_2O_3和BiFeO_3复合形成异质结后可以有效地提升其光生电荷的分离效率和拓展其可见光的利用率，从而增强了光催化降解效率；当煅烧温度为500℃时，Bi_2O_3/BiFeO_3复合材料的光催化循环稳定性及光催化性能达到最优。

关键词(KeyWords)： Bi_2O_3/BiFeO_3;静电纺丝法;异质结;光催化性能;煅烧温度

Abstract:

Keywords:

基金项目(Foundation): 甘肃省人才(青年团队)项目(2024QNTD38);; 甘肃省自然科学基金项目(24JRRF006);; 酒泉市科技计划支撑项目(2023CA2057);; 甘肃省教育厅科技创新基金项目(2024B-342);; 酒泉职业技术学院校级团队项目(2024XJTXM06)

作者(Author): 李增鹏,戴剑锋,王华,何川,马宏,江小鱼

DOI: 10.13289/j.issn.1009-6264.2024-0400

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