文献类型：期刊文献

英文题名：Photoluminescent carbon quantum dot grafted silica nanoparticles directly synthesized from rice husk biomass

作者：Wang, Zhaofeng[1,2];Liu, Jingjing[1];Wang, Weilin[1,3];Wei, Zichao[4];Wang, Fan[1,5];Gong, Peiwei[2];Wang, Jinqing[2];Li, Na[6];Liu, Bin[6];Zhang, Zhengguo[3];Wang, Weixing[3];Sun, Luyi[1,4]

机构：[1]Univ Connecticut, Inst Mat Sci, Polymer Program, Storrs, CT 06269 USA;[2]Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China;[3]South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;[4]Univ Connecticut, Dept Chem & Biomol Engn, Storrs, CT 06269 USA;[5]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China;[6]Lanzhou Univ, Sch Stomatol, Lanzhou 730000, Gansu, Peoples R China

年份：2017

卷号：5

期号：24

起止页码：4679

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY B

收录：;EI(收录号：20172803923397);WOS:【SCI-EXPANDED(收录号:WOS:000404070600014)】；

基金：This work is sponsored by the U.S. Environmental Protection Agency (SU-83529201), the Air Force Office of Scientific Research (FA9550-12-1-0159), and the Faculty Large Grant from the University of Connecticut. Z. Wang would like to thank the support from CAS Pioneer Hundred Talents Program.

语种：英文

外文关键词：Energy gap - Nanocrystals - Semiconductor quantum dots - Medical applications - Biocompatibility - Silica nanoparticles - Amorphous carbon - Synthesis (chemical) - Surface treatment - Grafting (chemical)

摘要：In this work, carbon quantum dot grafted silica nanoparticles (silica-C NPs) are directly synthesized from rice husk biomass with high yield. The rice husk derived silica-C NPs exhibit outstanding features, including ease of surface modification, high water dispersibility, and biocompatibility. Due to the covalent decoration of the carbon framework, the wide band gap amorphous silica is endowed intense and unique photoluminescence, which can be well controlled by further adjustments. Detailed investigations suggest that the silica-C NPs have the inherent advantages of both silica and carbon quantum dots, which ideally addresses the widely recognized issues of conventional silica-based photoluminescent nanomaterials for biomedical applications. In addition to creating a novel silica-based nanostructure with prominent performances, this work achieves the comprehensive utilization of rice husk biomass, which shows significant economic and environmental benefits.