Sustainable microalgae for the simultaneous synthesis of carbon quantum dots for cellular imaging and porous carbon for CO2 capture

被引:60
作者
Guo, Li-Ping [1 ]
Zhang, Yan [2 ]
Li, Wen-Cui [1 ]
机构
[1] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China
[2] Dalian Med Univ, Affiliated Hosp 1, Dalian 116021, Peoples R China
基金
中国国家自然科学基金;
关键词
Microalgae; Carbon quantum dots; Porous carbon; Cellular imaging; CO2; capture; DIOXIDE CAPTURE; BIOMASS; BIOFUELS; NITROGEN; ADSORBENTS; BIODIESEL; PRODUCTS; SORBENTS; SURFACE; CELLS;
D O I
10.1016/j.jcis.2017.01.003
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Microalgae biomass is a sustainable source with the potential to produce a range of products. However, there is currently a lack of practical and functional processes to enable the high-efficiency utilization of the microalgae. We report here a hydrothermal process to maximize the utilizability of microalgae biomass. Specifically, our concept involves the simultaneous conversion of microalgae to (i) hydrophilic and stable carbon quantum dots and (ii) porous carbon. The synthesis is easily scalable and eco-friendly. The microalgae-derived carbon quantum dots possess a strong two-photon fluorescence property, have a low cytotoxicity and an efficient cellular uptake, and show potential for high contrast bioimaging. The microalgae-based porous carbons show excellent CO2 capture capacities of 6.9 and 4.2 mmol g(-1) at 0 and 25 C respectively, primarily due to the high micropore volume (0.59 cm(3) g(-1)) and large specific surface area (1396 m(2) g(-1)). (C) 2017 Elsevier Inc. All rights reserved.
引用
收藏
页码:257 / 264
页数:8
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