文献类型：期刊文献

英文题名：Formation of Cu2O Solid Solution via High-Frequency Electromagnetic Field-Assisted Ball Milling: The Reaction Mechanism

作者：Zhang, Yingzhe Chen, Yudao Li, Juan Li, Wei Chen, Ding Qin, Qingdong

第一作者：张英哲

通信作者：Zhang, YZ[1];Qin, QD[1]

机构：[1]Guizhou Inst Technol, Coll Mat & Met Engn, Guiyang 550003, Peoples R China;[2]Changsha Univ Sci & Technol, Sch Energy & Power Engn, Changsha 410014, Peoples R China;[3]Hunan Univ, Coll Mech & Vehicle Engn, State Key Lab Adv Design & Mfg Vehicle Bodies, Changsha 410082, Hunan, Peoples R China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：corresponding author), Guizhou Inst Technol, Coll Mat & Met Engn, Guiyang 550003, Peoples R China.|贵州理工学院材料与冶金工程学院;贵州理工学院;

年份：2020

卷号：13

期号：3

外文期刊名：MATERIALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000515503100125)】；

基金：This research was funded by the Natural Science Foundation of Guizhou Province, grant number Qian Ke He J[2017]1071 and [2019]1415, The High Qualified People Starting Foundation of GIT, grant number, XJGC20190921 and National Natural Science Foundation of China, grant number 51964011.

语种：英文

外文关键词：mechanical alloying; ball milling; cuprous oxide

摘要：The contamination of environmental water with organic pollutants poses significant challenges for society, and much effort has been directed toward the development of catalysts and methods that can decompose these pollutants. While effort has been directed toward the fabrication of Cu2O catalysts by ball milling, this technique can involve long preparation times and provide low yields. In this study, we synthesized a solid solution of Cu2O in 22 h by high-frequency electric-field-assisted ball milling below 40 degrees C in only one step under aqueous conditions. We investigated the catalytic activities of the produced Cu2O solid solution in the microwave-assisted degradation of dyes, namely rhodamine B, phenol red and methyl orange. The prepared Cu2O solid solution was very catalytically active and completely degraded the above-mentioned dyes within 2 min. The one-dimensional diffusion model and the phase boundary (planar) model were found to describe the kinetics well. Synergism between ball milling and the high-frequency electromagnetic field plays a key role in the preparation of Cu2O solid solution nanoparticles. Ball milling facilitates the relaxation of the Cu2O lattice and high-frequency electromagnetic radiation accelerates the diffusion of Fe atoms into the Cu2O crystal along the (111) crystal plane, quickly leading to the formation of a Cu2O solid solution.