Polydopamine-based synthesis of an In(OH)3-PDMS sponge for ammonia detection by switching surface wettability

被引：14

作者：

Wang, Jikui ^{[1
,2
]}

Guo, Jiahong ^{[1
]}

Si, Pengxiang ^{[1
]}

Cai, Wanping ^{[1
]}

Wang, Yuming ^{[1
]}

Wu, Genhua ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Shanghai Key Lab Adv Polymer Mat,Minist Educ, Shanghai 200237, Peoples R China

[2] Collaborat Innovat Ctr Petrochem New Mat, Anqing 246011, Anhui, Peoples R China

来源：

RSC ADVANCES | 2016年 / 6卷 / 06期

关键词：

GAS; SEPARATION; MEMBRANES; HYDROGEN; FILMS; OIL;

D O I：

10.1039/c5ra23484k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An In(OH)(3)-PDMS sponge has been synthesized by covalent modification of PDA. The sponge can switch surface wettability reversibly between superhydrophobicity and superhydrophilicity when detecting ammonia. The water contact angle changes from 141.5 degrees to 0 degrees after storage in an ammonia atmosphere, which means an ammonia responsive surface wettability switch. The minimum NH3 center dot H2O concentration that the In(OH)(3)-PDMS can detected is 5% in 2 h. This kind of quick and sensitive ammonia detector is promising simply by virtue of the surface wettability conversion.

引用

页码：4329 / 4334

页数：6

共 11 条

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