回流法可控合成BiPO<sub>4</sub>纳米棒及其光催化性能

引用本文: 朱艳艳, 刘艳芳, 吕艳辉, 王华, 凌强, 朱永法. 回流法可控合成BiPO₄纳米棒及其光催化性能[J]. 物理化学学报, 2013, 29(03): 576-584. doi: 10.3866/PKU.WHXB201301043 shu

Citation: ZHU Yan-Yan, LIU Yan-Fang, LÜ Yan-Hui, WANG Hua, LING Qiang, ZHU Yong-Fa. Reflux Preparation and Photocatalytic Performance of Bismuth Phosphate Nanorods[J]. Acta Physico-Chimica Sinica, 2013, 29(03): 576-584. doi: 10.3866/PKU.WHXB201301043 shu

回流法可控合成BiPO₄纳米棒及其光催化性能

朱艳艳 ^1,2, ,
刘艳芳 ^1, ,
吕艳辉 ^1, ,
王华 ^2, ,
凌强 ^2, ,
朱永法 ^1,

基金项目:
国家自然科学基金(20925725, 50972070) (20925725, 50972070)

科技部创新方法工作专项及清华大学自主科研计划资助项目

摘要:

采用回流法合成了BiPO₄纳米棒光催化剂, 探讨了反应时间、反应物比例、pH值和反应物浓度对BiPO₄晶相结构和形貌尺寸的影响, 利用粉末X射线衍射(XRD)、透射电镜(TEM)、比表面积分析(BET)和紫外-可见漫反射光谱(UV-Vis DRS)等对产物进行了表征, 以亚甲基蓝(MB)为探针研究了其光催化活性. 反应时间和反应物浓度对产物的形貌尺寸影响较大, 反应物比例和pH值对产物晶相结构和形貌尺寸均有较大的影响, 进一步影响BiPO₄光催化剂的活性. 调控各种因素后可合成出具有单斜相独居石/六方相混晶结构的高紫外光活性BiPO₄纳米棒光催化剂.

关键词:

回流
/ 可控合成
/ BiPO₄
/ 混晶结构
/ 光催化

English

Reflux Preparation and Photocatalytic Performance of Bismuth Phosphate Nanorods

1.
1 Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China;
2 Institute of Aeronautical Meteorology and Chemical Defence, Equipment Academy of Air Force, Beijing 100085, P. R. China
Received Date: 24 October 2012
Available Online: 25 February 2013
Fund Project:
国家自然科学基金(20925725, 50972070)

科技部创新方法工作专项及清华大学自主科研计划资助项目

Abstract:

BiPO₄ nanorods were synthesized by reflux, and the effect of reaction time, reactant ratio and concentration, and pH value on BiPO₄ crystal structure and morphology was investigated. Nanorods were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), specific surface area analysis (BET), and UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS). The ability of BiPO₄ to photo-degrade methylene blue (MB) was investigated. The reaction time and reactant concentration influenced the product morphology. The reactant ratio and pH value had a large effect on the product crystal structure and morphology, and also on the photo-activity of BiPO₄. Highly UV active BiPO₄ nanorods of monoclinic monazite/hexa nal mixed crystal structure suitable for photocatalysis could be prepared by carefully controlling the above conditions.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

回流法可控合成BiPO₄纳米棒及其光催化性能

English

Reflux Preparation and Photocatalytic Performance of Bismuth Phosphate Nanorods

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs

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回流法可控合成BiPO4纳米棒及其光催化性能

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Reflux Preparation and Photocatalytic Performance of Bismuth Phosphate Nanorods

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

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