Open AccessFluorescent Carbonized Polymer Dots Prepared from Sodium Alginate Based on the CEE Effect
Author(s) -
Jianxin Sun,
Junke Yu,
Zhenjie Jiang,
Zhijie Zhao,
Yanzhi Xia
Publication year - 2020
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.0c03995
Subject(s) - glutaraldehyde , fluorescence , carbonization , polymer , hydrothermal carbonization , chemical engineering , materials science , sodium , carbon fibers , chemistry , nuclear chemistry , polymer chemistry , photochemistry , nanotechnology , organic chemistry , adsorption , physics , quantum mechanics , composite number , composite material , engineering
In recent years, as a new type of carbon dots, carbonized polymer dots (CPDs) have attracted more and more attention in many fields. In this experiment, a new kind of CPDs was synthesized by the hydrothermal treatment of the chemically cross-linked sodium alginate (SA) via glutaraldehyde. The fluorescence of CPDs was greatly enhanced because of the cross-linking enhanced emission effect. The formation process of CPDs at different reaction temperatures was explored. In addition, it was found that CPDs have stable fluorescence properties in mild acidic/basic and metal-ion environments. The in vitro toxicity of CPDs was tested, and based on their nontoxic property, SA films with anti-ultraviolet aging properties were prepared by using CPDs as the additive.