h-BN/BP异质结的制备及光催化性能研究
Preparation and Photocatalytic Properties of h-BN/BP Heterostructure
李素 1邓磊 2隋健鸿 3黄文章1
作者信息
- 1. 重庆科技学院,重庆 401331
- 2. 重庆天美环保工程有限公司,重庆 401331
- 3. 重庆渝科源环保科技有限公司,重庆 401331
- 折叠
摘要
以红磷、六方氮化硼为原料通过一步溶剂热法合成绿色环保型非金属六方氮化硼/黑磷(h-BN/BP)异质结,该法制备工艺简单、成本低廉.利用XRD、XPS、SEM、UV-Vis对样品的结构、形貌、光学等性能进行表征.结果表明:h-BN/BP异质结通过范德华作用稳定形成,h-BN较均匀地负载于BP上,h-BN/BP异质结的成功合成有效提升了BP的稳定性.紫外-可见光谱表明h-BN/BP异质结与h-BN相比,光响应范围从紫外区向红外区变化,禁带宽度由4.76 eV减小至 2.31 eV.h-BN/BP光催化剂对亚甲基蓝去除率为92.35%(相比h-BN和BP光催化降解率显著提高).光催化机理研究表明·OH与·O2-是主要活性物.
Abstract
The green and environment-friendly non-metallic hexagonal boron nitride/black phosphorus(h-BN/BP)heterostructure was synthesized by solvothermal method using red phosphorus and hexagonal boron nitride as raw materials.XRD,XPS,SEM,UV-Vis methods were used to analyze the composition,structure,morphology and optical property of the sample.The results showed that h-BN/BP heterostructure was stabilized by Van der Waals interactions,h-BN was uniformly loaded on BP.The successful synthesis of h-BN/BP effectively improved the stability of BP.The UV-vis spectrum indicated that the band gap decreased from 4.76 eV to 2.31 eV due to the expansion of the light response range from the UV to the infrared region.The removal rate of methylene blue by h-BN/BP photocatalyst was 92.35%,which was significantly higher than that of h-BN and BP monomers.The photocatalytic mechanism study showed that·OH and·O2-were the main active substance.
关键词
氮化硼/黑磷/异质结/光催化Key words
Boron nitride/Black phosphorus/Heterostructure/Photocatalysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据