As a new 2D material,black phosphorus (BP) has good application prospects in solar cells,photovoltaic appliances,and photothermal therapy.However,the chemical properties of its micro-nano structure are not stable enough,which limits its extensive applications.Quaternized chitosan (QCS) modified BP nanosheets (named as BPNs-QCS) were prepared using ultrasonic-assisted liquid-phase exfoliation technology and electrostatic adsorption method.The microstructure was characterized by transmission electron microscopy (TEM) and nanometer particle size analyzer.The stability of the material was studied by absorption spectroscopy,and the light-to-heat conversion performance before and after QCS modification was studied by photothermal imager.The results showed that the modification of QCS significantly improved the stability of BPNs in aqueous solution without affecting the original microstructure and photothermal properties.
Zhu Chenglong, Deng Xinyu, Wang Lingling, Liu Xiao, Zhang Yi
. Study on preparation and the stability and photothermal property of BPNs-QCS[J]. New Chemical Materials, 2021
, 49(7)
: 85
-88
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.07.020
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