| 甲醇热还原法制备高分散Cu2O微米立方体及其光催化性能 |
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| 引用本文： | 陈小平,魏源送,范敏,石金明,桂双林,陈泊宏,黄顺楠.甲醇热还原法制备高分散Cu2O微米立方体及其光催化性能[J].无机化学学报,2020,36(2):302-308. |
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| 作者姓名： | 陈小平 魏源送 范敏 石金明 桂双林 陈泊宏 黄顺楠 |
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| 作者单位： | 江西省科学院能源研究所, 南昌 330096,江西省科学院能源研究所, 南昌 330096;中国科学院生态环境研究中心, 水污染控制实验室, 北京 100085,江西省科学院能源研究所, 南昌 330096,江西省科学院能源研究所, 南昌 330096,江西省科学院能源研究所, 南昌 330096,江西省科学院能源研究所, 南昌 330096,江西省科学院能源研究所, 南昌 330096 |
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| 基金项目： | 中国博士后科学基金（No.2018M642596），江西省博士后日常经费（No.2018RC01），江西省科学院重点科研项目（No.2018YZD212）和江西省科学院博士后项目资助。 |
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| 摘 要： | 通过简单的甲醇热还原法制备高分散Cu2O微米立方体,制备过程中无需添加表面活性剂。利用X射线衍射(XRD)、场发射扫描电镜(FESEM)、高分辨透射电镜(HRTEM)、X射线光电子能谱(XPS)等分析测试手段对样品的物相及形貌进行表征;通过紫外可见漫反射(UV-Vis)及光致发光光谱(PL)对样品的光化学性能进行表征;样品的光催化性能通过可见光(λ>400 nm)催化降解罗丹明B染料(RhB)脱色活性进行测试表征。同时,对样品光催化性能与物理化学性能之间的内在联系进行了研究。结果表明:制备温度对样品的形态及光催化性能有着重要影响,当制备温度为140℃时,可制备得到高分散Cu2O微立方体并且其显示出最优的光催化活性;当制备温度进一步提高时,得到的样品为超细铜粉,样品的光催化性能迅速降低。
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| 关 键 词： | Cu2O微立方体 甲醇热还原 光催化 半导体 罗丹明B |
| 收稿时间： | 2019/8/30 0:00:00 |
| 修稿时间： | 2019/10/8 0:00:00 |
Synthesis and Photocatalytic Activity of Monodispersed Cu2O Micro Cubes Prepared by a Facile Methanol Thermal Reduction Method |
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| CHEN Xiao-Ping,WEI Yuan-Song,FAN Min,SHI Jin-Ming,GUI Shuang-Lin,CHEN Bo-Hong and HUANG Shun-Nan.Synthesis and Photocatalytic Activity of Monodispersed Cu2O Micro Cubes Prepared by a Facile Methanol Thermal Reduction Method[J].Chinese Journal of Inorganic Chemistry,2020,36(2):302-308. |
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| Authors: | CHEN Xiao-Ping WEI Yuan-Song FAN Min SHI Jin-Ming GUI Shuang-Lin CHEN Bo-Hong and HUANG Shun-Nan |
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| Institution: | Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, China,Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, China;State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China,Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, China,Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, China,Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, China,Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, China and Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, China |
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| Abstract: | Monodispersed Cu2O micro cubes were prepared via a simple methanol-thermal reduction method by controlling the reaction temperature.The samples were characterized by using several techaniques,such as X-ray diffraction(XRD),field emission scanning electron microscopy(FESEM),transmission electron microscopy(TEM),X-ray photoelectroscopy(XPS).The photocatalytic activities of the samples were tested by the photodegradation of rhodamine B(RhB)under visible light irradiation withλ>400 nm.The correlation between the physical-chemical properties and the photocatalytic acitivities of the materials were also investigated.The results indicate that monodispersed Cu2O micro cubes can be prepared at 140℃and show the best photocatalytic activity.When the preparation temperature was increased,ultrafine copper powder was obtained,and the photocatalytic performance of the sample was reduced rapidly. |
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| Keywords: | Cu2O micro cubes methanol thermal reduction photocatalysis semiconductors rhodamine B |
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