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żÕæµÄºÃ¼¤¶¯°¡£¬´ó¸ÅÊÇ5ÔÂÖÐÑ®¿ªÊ¼×öµÄÕâ¸öСʵÑé µ½7Ôµ׾­¹ýÀÏʦÐ޸ĺó£¬Í¶³öÈ¥ÁË 9ÔÂ12ºÅÕýʽ³ö°æÁË Å¼ÕæµÄºÃ¼¤¶¯ÍÛ`~~ ÔÚ´Ëллż¿ÎÌâ×éµÄËùÓÐͯЬ£¬»¹ÓÐż×î¾´°®µÄºØÀÏʦ ˵ÕæµÄ£¬ºØÀÏʦÕæµÄÊǷdz£·Ç³£·Ç³£ºÃµÄÒ»¸öÀÏʦŶ °¦£¬ºÜÐÒÔËÓöµ½Ëû ¹þ¹þ Sensing ammonia using dry waters containing cupric chloride solution Miaomiao Hu, Meijuan Tian, Juan He, Yongjun He, Department of Applied Chemistry, Xi¡¯an University of Science and Technology, Xi¡¯an 710054, China Received 5 July 2012Revised 2 August 2012Accepted 5 August 2012Available online 12 September 2012 http://dx.doi.org/10.1016/j.colsurfa.2012.08.030, How to Cite or Link Using DOIPermissions & Reprints -------------------------------------------------------------------------------- Abstract Dry waters with cupric chloride solution-silica particles core-shell structures were prepared by a mixing method and were used as a detector for ammonia gas. The microscopy results showed that the dry waters were spherical and had an average diameter of 260 ¦Ìm. When the dry waters was exposed to ammonia gas, their color were changed from green-blue to deep blue due to the generation of tetraamminediauacopper (II) complex ions. With the decrease of the diameter of the dry waters or the decrease of the concentration of cupric chloride solution, the dry waters became more sensitive to ammonia gas. -------------------------------------------------------------------------------- QQ½Øͼ20120918164829.jpg

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