文献类型：期刊文献

英文题名：Hollow Sodium Tungsten Bronze (Na_0.15WO₃) Nanospheres: Preparation, Characterization, and Their Adsorption Properties

作者：Hou, Jing[1,2];Zuo, Guanke[3];Shen, Guangxia[1];Guo, He[3];Liu, Hui[3];Cheng, Ping[1];Zhang, Jingyan[3];Guo, Shouwu[1]

机构：[1]Shanghai Jiao Tong Univ, Natl Key Lab Nano Micro Fabricat Technol, Key Lab Thin Film & Microfabricat, Minist Educ,Res Inst Micro Nano Sci & Technol, Shanghai 200240, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Sch Pharm, Shanghai 200237, Peoples R China

年份：2009

卷号：4

期号：10

起止页码：1241

外文期刊名：NANOSCALE RESEARCH LETTERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000269880900020)】；

基金：This work was supported by the National Basic Research Program (973 program) of China (No. 2007CB936000), the National High Technology Research and Development Program (863 program) of China (No. 2006AA04Z309), and the Shanghai Pujiang Scholarship Program (Nos. 06PJ14025, 06PJ14030).

语种：英文

外文关键词：Sodium tungsten bronze; Hollow nanosphere; Adsorption property

摘要：We report herein a facile method for the preparation of sodium tungsten bronzes hollow nanospheres using hydrogen gas bubbles as reactant for chemical reduction of tungstate to tungsten and as template for the formation of hollow nanospheres at the same time. The chemical composition and the crystalline state of the as-prepared hollow Na0.15WO3 nanospheres were characterized complementarily, and the hollow structure formation mechanism was proposed. The hollow Na0.15WO3 nanospheres showed large Brunauer-Emment-Teller specific area (33.8 m(2) g(-1)), strong resistance to acids, and excellent ability to remove organic molecules such as dye and proteins from aqueous solutions. These illustrate that the hollow nanospheres of Na0.15WO3 should be a useful adsorbent.