微/纳米ZnO绒球的制备及其在自然光下催化降解有机染料性能
以谷氨酸氟硼酸（GluBF4）离子液体水溶液为反应介质,以物质的量比为1：6的二水合醋酸锌[Zn（Ac）2·2H2O]和氢氧化钠为原料,室温下制备前驱体,再微波辅助加热制备了纳米氧化锌粉体,获得了纳米结构微米尺寸纳米Zn O绒球.利用场发射扫描电镜（FESEM）、X射线衍射（XRD）、比表面（BET）、能量色散谱（EDS）等对产物进行了表征.所得产物为六方晶系纤锌矿结构,粉体粒径20.4 nm,绒球比表面积为28.3 m^2·g^-1,产物纯度较高,收率95.3%.同时探讨了纳米ZnO绒球生成的可能机理.该纳米材料在日光下显示较高的光催化活性和稳定性.分别配制浓度为10 mg·L^-1的100...
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| Published in | 物理化学学报 Vol. 31; no. 8; pp. 1615 - 1620 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
北京石油化工学院化学工程学院,北京,102617
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6818 |
| DOI | 10.3866/PKU.WHXB201505141 |
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| Abstract | 以谷氨酸氟硼酸（GluBF4）离子液体水溶液为反应介质,以物质的量比为1：6的二水合醋酸锌[Zn（Ac）2·2H2O]和氢氧化钠为原料,室温下制备前驱体,再微波辅助加热制备了纳米氧化锌粉体,获得了纳米结构微米尺寸纳米Zn O绒球.利用场发射扫描电镜（FESEM）、X射线衍射（XRD）、比表面（BET）、能量色散谱（EDS）等对产物进行了表征.所得产物为六方晶系纤锌矿结构,粉体粒径20.4 nm,绒球比表面积为28.3 m^2·g^-1,产物纯度较高,收率95.3%.同时探讨了纳米ZnO绒球生成的可能机理.该纳米材料在日光下显示较高的光催化活性和稳定性.分别配制浓度为10 mg·L^-1的100 mL甲基橙（MO）和甲基紫（MV）水溶液,30 mg纳米氧化锌为光催化降解催化剂,太阳光激发下5 h脱色率分别达到74.3%和96.9%;溶液总有机碳（TOC）含量随光降解的进行缓慢下降;光催化剂重复利用5次,催化剂形貌不变、颜色不变,质量基本未发生变化. |
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| AbstractList | O644; 以谷氨酸氟硼酸(GluBF4)离子液体水溶液为反应介质,以物质的量比为1∶6的二水合醋酸锌[Zn(Ac)2· 2H2O]和氢氧化钠为原料,室温下制备前驱体,再微波辅助加热制备了纳米氧化锌粉体,获得了纳米结构微米尺寸纳米ZnO绒球.利用场发射扫描电镜(FESEM)、X射线衍射(XRD)、比表面(BET)、能量色散谱(EDS)等对产物进行了表征.所得产物为六方晶系纤锌矿结构,粉体粒径20.4 nm,绒球比表面积为28.3 m2·g-1,产物纯度较高,收率95.3％.同时探讨了纳米ZnO绒球生成的可能机理.该纳米材料在日光下显示较高的光催化活性和稳定性.分别配制浓度为10 mg·L-1的100 mL甲基橙(MO)和甲基紫(MV)水溶液,30 mg纳米氧化锌为光催化降解催化剂,太阳光激发下5h脱色率分别达到74.3％和96.9％;溶液总有机碳(TOC)含量随光降解的进行缓慢下降;光催化剂重复利用5次,催化剂形貌不变、颜色不变,质量基本未发生变化. 以谷氨酸氟硼酸（GluBF4）离子液体水溶液为反应介质,以物质的量比为1：6的二水合醋酸锌[Zn（Ac）2·2H2O]和氢氧化钠为原料,室温下制备前驱体,再微波辅助加热制备了纳米氧化锌粉体,获得了纳米结构微米尺寸纳米Zn O绒球.利用场发射扫描电镜（FESEM）、X射线衍射（XRD）、比表面（BET）、能量色散谱（EDS）等对产物进行了表征.所得产物为六方晶系纤锌矿结构,粉体粒径20.4 nm,绒球比表面积为28.3 m^2·g^-1,产物纯度较高,收率95.3%.同时探讨了纳米ZnO绒球生成的可能机理.该纳米材料在日光下显示较高的光催化活性和稳定性.分别配制浓度为10 mg·L^-1的100 mL甲基橙（MO）和甲基紫（MV）水溶液,30 mg纳米氧化锌为光催化降解催化剂,太阳光激发下5 h脱色率分别达到74.3%和96.9%;溶液总有机碳（TOC）含量随光降解的进行缓慢下降;光催化剂重复利用5次,催化剂形貌不变、颜色不变,质量基本未发生变化. |
| Author | 佟拉嘎 刘金艳 王岑晨 荣华 李巍 |
| AuthorAffiliation | 北京石油化工学院化学工程学院,北京102617 |
| AuthorAffiliation_xml | – name: 北京石油化工学院化学工程学院,北京,102617 |
| Author_FL | TONG La-Ga LIU Jin-Yan RONG Hua WANG Cen-Chen LI Wei |
| Author_FL_xml | – sequence: 1 fullname: TONG La-Ga – sequence: 2 fullname: LIU Jin-Yan – sequence: 3 fullname: WANG Cen-Chen – sequence: 4 fullname: RONG Hua – sequence: 5 fullname: LI Wei |
| Author_xml | – sequence: 1 fullname: 佟拉嘎 刘金艳 王岑晨 荣华 李巍 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.3866/PKU.WHXB201505141 |
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| DocumentTitleAlternate | Preparation of Micro/Nano ZnO Pompons and Their Catalytic Activity for the Solar Degradation of Organic Dyes |
| DocumentTitle_FL | Preparation of Micro/Nano ZnO Pompons and Their Catalytic Activity for the Solar Degradation of Organic Dyes |
| EndPage | 1620 |
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| GrantInformation_xml | – fundername: The project was supported by the National Undergraduates Research Training Program,China; Breeding Project of Outstanding Academic Leaders of Beijing Institute of Petro-chemical Technology,China (BIPT-BPOAL-2014).国家级大学生创新创业训练计划; 北京石油化工学院优秀学科带头人培育计划 funderid: (URT:201300078); (URT:201300078); (BIPT-BPOAL-2014) |
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| Issue | 8 |
| Keywords | Photocatalytic degradation 微波辅助加热 有机污染物 光催化降解 Amino acid ionic liquid 微/纳米ZnO Organic contaminant 氨基酸离子液体 Microwave heating Micro/nano ZnO |
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| Notes | 11-1892/O6 A novel, high-yielding synthesis of micro/nano ZnO pompons using glutamic acid fluoborate（Glu BF4） ionic liquid is reported. The precursor was prepared with zinc acetatedihydrate [Zn（Ac）2· 2H2O]and sodium hydroxide（molar ratio = 1：6） as starting materials in an aqueous solution of the Glu BF4 ionic liquid at room temperature, which was then heated by microwave to form nano-Zn O powder. The ZnO pompons were characterized using field emission scanning electron microscopy（FESEM）, X-ray diffraction（XRD）, specific Brunauer-Emmett-Teller（BET） surface area method, and energy dispersive spectrometry（EDS）. The product displayed a hexagonal wurtzite structure. The pompon diameter was determined to be20.4 nm, with a pompon specific surface area of 28.3 m^2·g^-1. A possible mechanism for the formation of the nano-Zn O pompons is discussed. The Zn O pompons displayed high photocatalytic reactivity and photostability under sunlight. Aqueous solutions of methyl orange（MO） and methyl violet（MV） containing the Zn O |
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| PublicationTitle | 物理化学学报 |
| PublicationTitleAlternate | Acta Physico-Chimica Sinica |
| PublicationTitle_FL | Acta Physico-Chimica Sinica |
| PublicationYear | 2015 |
| Publisher | 北京石油化工学院化学工程学院,北京,102617 |
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| Snippet | 以谷氨酸氟硼酸（GluBF4）离子液体水溶液为反应介质,以物质的量比为1：6的二水合醋酸锌[Zn（Ac）2·2H2O]和氢氧化钠为原料,室温下制备前驱体,再微波辅助加热制备了纳米氧化锌粉体,获得了纳米结构微米尺寸纳米Zn... O644; 以谷氨酸氟硼酸(GluBF4)离子液体水溶液为反应介质,以物质的量比为1∶6的二水合醋酸锌[Zn(Ac)2·... |
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| StartPage | 1615 |
| SubjectTerms | 光催化降解 微/纳米ZnO 微波辅助加热 有机污染物 氨基酸离子液体 |
| Title | 微/纳米ZnO绒球的制备及其在自然光下催化降解有机染料性能 |
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