Cu2O nanoparticles： Radiation synthesis, and photocatalytic activity
Cu2O nanocrystals were synthesized by irradiating an aqueous solution of CuSO4·5H2O （1.25g）, polyvinyl alcohol （PVA, 0.8 g）, and isopropanol （3.1 mL）. The products were characterized by powder XRD, TEM and SEM. Methyl orange degradation under visible light using the Cu2O nanocrystals as catalyst was...
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| Veröffentlicht in: | Nuclear science and techniques 2010-06, Vol.21 (3), p.146-151 |
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| creator | LIN Xiangfeng ZHOU Ruimin SHENG Xiaohai ZHANG Jianqiang |
| description | Cu2O nanocrystals were synthesized by irradiating an aqueous solution of CuSO4·5H2O （1.25g）, polyvinyl alcohol （PVA, 0.8 g）, and isopropanol （3.1 mL）. The products were characterized by powder XRD, TEM and SEM. Methyl orange degradation under visible light using the Cu2O nanocrystals as catalyst was studied by UV-Vis absorption method. The results show that the products are nanocrystals of pure Cu2O. Morphology and size of the nanoparticles are affected by the irradiation dose and pH value of the initial solution. Octahedral Cu2O nanocrystals of 116 nm in size can be obtained at the initial pH of 8.0 and 280-kGy irradiation. The nanocrystals have excellent catalytic activity for photodegradation of the methyl orange solution bubbled at the air-flow rate of 750 mL·min^-1, due to the large { 111 } facets of octahedral Cu2O particles. |
| format | Article |
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The products were characterized by powder XRD, TEM and SEM. Methyl orange degradation under visible light using the Cu2O nanocrystals as catalyst was studied by UV-Vis absorption method. The results show that the products are nanocrystals of pure Cu2O. Morphology and size of the nanoparticles are affected by the irradiation dose and pH value of the initial solution. Octahedral Cu2O nanocrystals of 116 nm in size can be obtained at the initial pH of 8.0 and 280-kGy irradiation. The nanocrystals have excellent catalytic activity for photodegradation of the methyl orange solution bubbled at the air-flow rate of 750 mL·min^-1, due to the large { 111 } facets of octahedral Cu2O particles.</description><identifier>ISSN: 1001-8042</identifier><identifier>EISSN: 2210-3147</identifier><language>eng</language><publisher>Shanghai Applied Radiation Institute,Shanghai University,Shanghai 201800,China%National Engineering Research Center for Nanotechnology,Shanghai 200241,China</publisher><subject>光催化活性 ; 初始pH值 ; 照射剂量 ; 粉末X射线衍射 ; 纳米晶体 ; 纳米氧化亚铜 ; 辐射合成 ; 降解活性</subject><ispartof>Nuclear science and techniques, 2010-06, Vol.21 (3), p.146-151</ispartof><rights>Copyright © Wanfang Data Co. Ltd. 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The results show that the products are nanocrystals of pure Cu2O. Morphology and size of the nanoparticles are affected by the irradiation dose and pH value of the initial solution. Octahedral Cu2O nanocrystals of 116 nm in size can be obtained at the initial pH of 8.0 and 280-kGy irradiation. 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The products were characterized by powder XRD, TEM and SEM. Methyl orange degradation under visible light using the Cu2O nanocrystals as catalyst was studied by UV-Vis absorption method. The results show that the products are nanocrystals of pure Cu2O. Morphology and size of the nanoparticles are affected by the irradiation dose and pH value of the initial solution. Octahedral Cu2O nanocrystals of 116 nm in size can be obtained at the initial pH of 8.0 and 280-kGy irradiation. The nanocrystals have excellent catalytic activity for photodegradation of the methyl orange solution bubbled at the air-flow rate of 750 mL·min^-1, due to the large { 111 } facets of octahedral Cu2O particles.</abstract><pub>Shanghai Applied Radiation Institute,Shanghai University,Shanghai 201800,China%National Engineering Research Center for Nanotechnology,Shanghai 200241,China</pub><tpages>6</tpages></addata></record> |
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| ispartof | Nuclear science and techniques, 2010-06, Vol.21 (3), p.146-151 |
| issn | 1001-8042 2210-3147 |
| language | eng |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | 光催化活性 初始pH值 照射剂量 粉末X射线衍射 纳米晶体 纳米氧化亚铜 辐射合成 降解活性 |
| title | Cu2O nanoparticles： Radiation synthesis, and photocatalytic activity |
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