应用化学 ›› 2022, Vol. 39 ›› Issue (7): 1090-1097.DOI: 10.19894/j.issn.1000-0518.210273

• 研究论文 • 上一篇    下一篇

基于泡沫铜的多孔碳均匀负载Cu3P纳米颗粒的制备及其光催化降解染料性能

刘盛杰, 叶永杰, 刘银怡, 林淑满, 谢浩源, 刘文婷, 许伟钦()   

  1. 广东第二师范学院化学与材料科学学院,广东省普通高校先进材料与节能减排 工程技术开发中心,广州 510303
  • 收稿日期:2021-06-07 接受日期:2021-08-31 出版日期:2022-07-01 发布日期:2022-07-11
  • 通讯作者: 许伟钦
  • 基金资助:
    广州市基础研究计划基础与应用基础研究项目(202102020537);大学生创新创业项目(S202014278020)

Preparation of Uniformly Loaded Cu3P Nanoparticles in Porous Carbon Based on Copper Foam and Their Photocatalytic Performance for Dye Degradation

Sheng-Jie LIU, Yong-Jie YE, Yin-Yi LIU, Shu-Man LIN, Hao-Yuan XIE, Wen-Ting LIU, Wei-Qin XU()   

  1. Engineering Technology Development Center of Advanced Materials & Energy Saving and Emission Reduction in Guangdong Colleges and Universities,Department of Chemistry and Materials Science,Guangdong University of Education,Guangzhou 510303,China
  • Received:2021-06-07 Accepted:2021-08-31 Published:2022-07-01 Online:2022-07-11
  • Contact: Wei-Qin XU
  • About author:xuweiqin@gdei.edu.cn
  • Supported by:
    the Basic and Applied Basic Research Project Guangzhou Basic Research Program(202102020537);the College Students′ Innovation and Entrepreneurship Programs(S202014278020)

摘要:

为了开发活性高、易回收的光催化剂,采用多步热解法制备了基于泡沫铜的多孔碳均匀负载Cu3P纳米颗粒。在泡沫铜(FC)基底原位生长铜基金属-有机框架晶态材料(Cu-MOF),通过热解处理使得泡沫铜表面覆盖了均匀负载于碳材料的Cu2O/Cu纳米颗粒(Cu2O/Cu@NPC@FC-400)。对该材料进行磷化处理得到目标光催化剂Cu3P@NPC@FC-400。利用X射线粉末衍射(XRD)、傅里叶变换红外光谱(FT-IR)、紫外-可见漫散射光谱(UV-Vis DRS)、X射线光电子能谱(XPS)和扫描电子显微镜(SEM)等表征材料的组成和形貌。以罗丹明B(Rh B)溶液作为模拟废水,探究其光催化性能及机理。结果发现,Cu3P@NPC@FC-400材料对罗丹明B染料具有良好的光催化性能,在3 h内染料去除率可达94%。该材料便于回收,循环利用10次后,光催化活性保持不变。此外,该材料对于含有7种染料的复杂体系也具有优异的光降解性能。该催化剂具有稳定性高、回收简便的优势,可用于处理含有多种染料的废水。

关键词: 金属-有机框架, 泡沫铜, 磷化, 染料, 光催化降解

Abstract:

To develop the photocatalyst with high activity and easy recyclability, uniformly loaded Cu3P NPs in N-doped porous carbon (NPC) supported by foamy copper (FC) was synthesized through a multi-step calcination method. FC was modified by in-situ growth of copper-based metal-organic framework (Cu-MOF) crystals, which was further calcinated to obtain Cu2O/Cu NPs loaded NPC on the surface of FC (Cu2O/Cu@NPC@FC-400). The desired photocatalyst Cu3P@NPC@FC-400 can be achieved after phosphate treatment. The composition and morphology of the obtained material were characterized by X-ray powder diffraction (PXRD), infrared spectroscopy (IR), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The photocatalytic performance of Cu3P@NPC@FC-400 was studied in the simulated dye wastewater of Rhodamine B (Rh B), and the degradation mechanism was explored as well. It is found that the catalyst exhibits good photocatalytic activity for Rh B with a high dye removal up to 94% within 3 h. The photocatalyst is convenient for recovery, and its activity remains after 10 runs. Moreover, Cu3P@NPC@FC-400 shows excellent photodegradation performance for multi-component wastewater containing 7 dyes. The photocatalyst has the advantage of good stability and easy recovery, which can be used for treating wastewater of various dyes.

Key words: Metal-organic framework, Foamy copper, Phosphate treatment, Dye, Photocatalytic degradation

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