Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Nanospheres: Preparation, Characterization, and Their Adsorption Properties | Nanoscale Res Lett 2009 4 1241-1246 DOI S11671-009-9383-X NANO EXPRESS Hollow Sodium Tungsten Bronze Nanospheres Preparation Characterization and Their Adsorption Properties Jing Hou Guanke Zuo Guangxia Shen He Guo Hui Liu Ping Cheng Jingyan Zhang Shouwu Guo Received 23 April 2009 Accepted 1 July 2009 Published online 17 July 2009 to the authors 2009 Abstract 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 nanospheres were characterized complementa-rily and the hollow structure formation mechanism was proposed. The hollow nanospheres showed large Brunauer-Emment-Teller specific area m2 g- 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 should be a useful adsorbent. Electronic supplementary material The online version of this article doi s11671-009-9383-x contains supplementary material which is available to authorized users. J. Hou G. Shen P. Cheng S. Guo National Key Laboratory of Nano Micro Fabrication Technology Key Laboratory for Thin Film and Microfabrication of the Ministry of Education Research Institute of Micro Nano Science and Technology Shanghai Jiao Tong University 200240 Shanghai People s Republic of China e-mail swguo@ J. Hou School of Materials Science Engineering East China University of Science and Technology 200237 Shanghai People s Republic of China G. Zuo H. Guo H. Liu J. Zhang School of Pharmacy East China University of Science and Technology 200237 Shanghai People s Republic of China e-mail jyzhang@ Keywords Sodium tungsten bronze Hollow nanosphere .
