Facile synthesis of blue-emitting carbon dots@mesoporous silica composite spheres

被引：31

作者：

Guo, Ziying ^{[1
]}

Zhu, Zhenpeng ^{[1
]}

Zhang, Xinguo ^{[1
]}

Chen, Yibo ^{[2
]}

机构：

[1] Southern Med Univ, Sch Pharmaceut Sci, Guangdong Prov Key Lab New Drug Screening, Guangzhou 510515, Guangdong, Peoples R China

[2] Guangzhou Univ, Sch Chem & Chem Engn, Guangzhou Key Lab Environm Funct Mat & Technol, Guangzhou 510006, Guangdong, Peoples R China

来源：

SOLID STATE SCIENCES | 2018年 / 76卷

基金：

中国国家自然科学基金;

关键词：

Carbon dot; Luminescence; Mesoporous silica; Composite material; HYDROTHERMAL TREATMENT; STEP SYNTHESIS; FLUORESCENCE; NANOPARTICLES; NITROGEN; GREEN;

D O I：

10.1016/j.solidstatesciences.2017.12.011

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This paper reported a facile and effective approach towards high-efficient composite luminophores by embedding blue-emitting N-doped carbon dots into spherical SiO2 matrix (CDs@SiO2). Mesoporous silica microspheres (r-CDs@MSN) with strong luminescence were synthesized by removing CTAB templates in CDs@SiO2 using reflux with acetone. The r-CDs@MSN possess a spherical morphology with smooth surface and a diameter of 130 nm, while it exhibits an excitation-independent blue emission peak at 440 nm with an internal quantum yield of 21.5%. BET result shows that the corresponding surface area and adsorption total pore volume are 156.27 m(2)/g and 0.682 cm(3)/g, which is suitable for the drugs loading and release. The results indicate that r-CDs@MSN might act as a potential fluorescent drug carrier. (c) 2017 Elsevier Masson SAS. All rights reserved.

引用

页码：100 / 104

页数：5

共 33 条

[1]

[Anonymous], 2015, ANGEW CHEM

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