Highly chemiluminescent magnetic mesoporous carbon composites Fe3O4@void@C with yolk-shell structure

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2018,（9）
• 页码范围: 1143-1150
• 页数: 8页
• 语种: 英文

摘要

In this work,highly chemiluminescent magnetic mesoporous carbon with yolk-shell structure was synthesized by encapsulating N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and Co2+ into the magnetic mesoporous carbon composites (Co2+-ABEI-Fe3O4@void@C).The synthetic Co2+-ABEI-Fe3O4@void@C showed a good magnetic separation property,which could remove residual ABEI molecules and Co2+ in less than 3 min under an external magnet.Moreover,the synthetic Co2+-ABEI-Fe3O4@void@Cdemonstrated good chemiluminescence (CL) property and good stability when interacted with alkaline H2O2 solution.The CL intensity of such Co2+-ABEI-Fe3O4@void@C was about 120 times higher than that of ABEI-Fe3O4@[e-mail] Co2+-ABEI-Fe3O4@void@C also exhibited good electrochemiluminescence (ECL) property in alkaline solution.The outstanding CL/ECL performance of the Co2+-ABEI-Fe3O4@void@C was attributed to the Co2+ immobilized in the Co2+-ABEI-Fe3O4@void@C,which catalyzed the decomposition of H2O2 to generate O2·-and HO·,expediting the CL/ECL reaction.The synthetic Co2+-ABEI-Fe3O4@void@C may be of great application for the development of new methodologies in bioanalysis.