量子点
醋酸镉
溴化物
自愈水凝胶
化学
兴奋剂
基质(化学分析)
化学工程
材料科学
高分子化学
无机化学
镉
纳米技术
有机化学
色谱法
光电子学
工程类
作者
Saibal Bera,Amit Chakraborty,Suvendu Karak,Arjun Halder,Soumyajyoti Chatterjee,Subhadeep Saha,Rahul Banerjee
标识
DOI:10.1021/acs.chemmater.8b01698
摘要
Two low molecular weight metallohydrogels (ZALA and CALA) have been synthesized from an amino-acid-based ligand precursor (LA) and two different metal salts [zinc acetate dihydrate (ZA) and cadmium acetate dihydrate (CA), respectively. These two hydrogels show a unique chemically stimulated interconversion to each other via a reversible gel–sol–gel pathway. This programmable gel–sol reversible system satisfies logic operations of a basic Boolean logic (INHIBIT) gate. Also, these hydrogels can be degraded into different MOF phases at room temperature spontaneously or in the presence of chloride and bromide salts (NaCl and NaBr.). CdS quantum dots can be grown inside the CALA gel matrix (CdS@CALA) in the presence of small amount of Na2S. This CdS doped gel exhibits time dependent tunable emission (white to yellow to orange) as a consequence of a slow agglomeration process of the entrapped quantum dots inside the gel matrix. This luminescence property also reflects the corresponding gel derived MOFs (obtained either by self-degradation of CdS@CALA or via anion induction) as well. This, to the best of our knowledge, is probably the simplest way to make a CdS quantum dot based composite material where CdS is entrapped within the gel and the gel-derived MOF matrix.
科研通智能强力驱动
Strongly Powered by AbleSci AI