晶态红磷纳米带/MIL-101-氨基复合材料的制备及其光催化降解四环素  

Preparation of cRP NRs/MIL-101-NH_(2)composites and photocatalytic degradation of tetracycline

作　　者：朱靖雨 高志邦 王驰[1] 李凯[2] 梅毅[1] ZHU Jingyu;GAO Zhibang;WANG Chi;LI Kai;MEI Yi(Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming 650500;Faculty of Environmental Science Engineering,Kunming University of Science and Technology,Kunming 650500)

机构地区：[1]昆明理工大学化学工程学院,昆明650500 [2]昆明理工大学环境科学与工程学院,昆明650500

出　　处：《复合材料学报》2025年第3期1653-1664,共12页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(52260013);云南省重大科技项目(202202AG050005);云南省磷资源技术创新中心资助(202305AK340002)。

摘　　要：晶态红磷纳米带(cRP NRs)是一种具有条带状结构的新型材料,其结构赋予了晶态红磷纳米带独特的物理和化学性质,使其在光催化领域具有广泛的应用前景。然而cRP NRs因其光生电子空穴复合较快和自由基产生种类单一等问题影响了其在光催化中的应用。为了提高cRP NRs的光催化降解效率,通过结合铁基MOF材料MIL-101-NH_(2)具有高比表面积和孔隙率的优点,利用构造异质结的方法来对材料进行改性。本文采用溶剂热法成功将cRP NRs与MIL-101-NH_(2)铁基金属有机框架材料复合。随后,对复合材料进行了SEM、TEM等表征,并通过元素分布扫描和XRD特征峰等分析,证实了cRP NRs与MIL-101-NH_(2)材料的成功复合。在光催化降解四环素的对比实验中,cRP NRs/MIL-101-NH_(2)表现出优异的降解效率,在光照90 min后降解了约80%。接着深入进行了XPS元素能谱分析、禁带宽度测量、Mott-Schottky曲线测定以及自由基捕获实验,确定了cRP NRs/MIL-101-NH_(2)形成了Z型异质结。The crystalline red phosphorus nanoribbons(cRP NRs)are a new type of material with banded structure,which gives the crystalline red phosphorus nanoribbons unique physical and chemical properties,and makes it have a wide application prospect in the field of photocatalysis.However,the application of cRP NRs in photocatalysis is affected by the problems such as the fast recombination of photogenerated electron holes and the single type of free radicals.In order to improve the photocatalytic degradation efficiency of cRP NRs,the iron-based MOF material MIL-101-NH_(2)has the advantages of high specific surface area and porosity,and the material was modified by constructing heterojunction.In this paper,we have successfully synthesized cRP NRs with MIL-101-NH_(2)organic framework materials by solvothermal method.Subsequently,the composite was characterized by SEM and TEM,and the successful composite of cRP NRs and MIL-101-NH_(2)was confirmed by element distribution scanning and XRD characteristic peaks.In the comparative experiment of photocatalytic degradation of tetracycline,cRP NRs/MIL-101-NH_(2)showed excellent degradation efficiency,degrading about 80%after 90 min of light.Then,XPS spectral analysis,band gap measurement,Mott-Schottky curve determination and free radical trapping experiments were carried out,and it was confirmed that cRP NRs/MIL-101-NH_(2)formed Z-scheme heterojunction.

关 键 词：晶态红磷纳米带 MOF 溶剂热法 光催化 四环素 

分 类 号：TB333[一般工业技术—材料科学与工程]