Cu@Zn/Ti-LDH复合材料的制备及在光催化氧化脱硫下的应用  

Preparation of Cu@Zn/Ti-LDH composite and its application in photocatalytic oxidation desulfurization

作　　者：徐佳欣 郑永杰[1,2] 田景芝 赵云鹏[1] 郑禾山[2] XU Jia-xin;ZHENG Yong-jie;TIAN Jing-zhi;ZHAO Yun-peng;ZHENG He-shan(College of Chemistry and Chemical Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China;College of Light Industry and Textile,Qiqihar University,Heilongjiang Qiqihar 161006,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]齐齐哈尔大学轻工与纺织学院,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报(自然科学版)》2025年第3期48-57,共10页Journal of Qiqihar University(Natural Science Edition)

基　　金：国家自然科学基金(52172092)。

摘　　要：采用水热法合成30-Cu@LDH-2复合纳米材料。通过X射线衍射、透射电子显微镜、扫描电子显微镜、X射线光电子光谱、77 K时N_(2)吸附以及紫外可见光谱,对合成样品的结构、表面性质、微观形态和光响应性质进行详细研究。结果表明,在紫外灯照射下,与纯LDH-2相比,30-Cu@LDH-2复合材料具有卓越的光催化活性,DBT降解效果显著提高。增强的光催化活性归因于其较大的比表面积(238.89 m2/g),更广泛的光响应范围以及更高迁移效率的光诱导电子。The present study synthesized 30-Cu@LDH-2 composite nanomaterials via a hydrothermal method.The structural,surface,micro-morphological,and photoresponsive properties of the synthesized samples were comprehensively investigated using XRD,TEM,SEM,XPS,N_(2)adsorption at 77 K,and UV.The results showed that under ultraviolet light irradiation,the 30-Cu@LDH-2 composite material exhibited excellent photocatalytic activity and significantly improved DBT degradation compared to pure LDH-2.This enhanced photocatalytic activity can be attributed to its larger specific surface area(238.89 m2/g),wider range of light response,and higher migration efficiency of photo-induced electrons.In conclusion,these findings provide a green and sustainable approach for achieving DBT degradation.

关 键 词：光催化 水滑石 水热法 氧化脱硫 催化技术 

分 类 号：O643.36[理学—物理化学]