Mesoporous hollow silica shells modified with functional diamine groups show high-performance absorption capacity and selective colorimetric response to copper ions in aqueous solutions

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• 作者：Chen-hui Ji^a ; ¹ ; Jun-jie Li^a ; ¹ ; Chang-jun Hou^a ; ^b ; ^{houcj@cqu.edu.cn}Author Vitae ; Dan-qun Huo^a ; Mei Yang^a ; Liang Zhang^c
• 关键词：Copper ions ; Mesoporous hollow silica shells ; Absorption materials ; Colorimetric sensor ; Cupron
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：240
• 期：Complete
• 页码：718-725
• 全文大小：2233 K
• 卷排序：240

文摘

Diamine-functionalized HMSs gave clear colorimetric response to Cu2+ in low concentrations after color development using cupron solution. The functional material can be regenerated by treating with hydrochloric acid and maintains high efficiency upon repeated use for at least 10 times. The material has an absorption capacity of about 138.58 mg/g.