Green synthesis of graphitic carbon nitride nanodots using sodium chloride template
Green synthesis of graphitic carbon nitride nanodots using sodium chloride template
复制标题
氯化钠模板绿色合成石墨氮化碳纳米点
DOI:
10.1007/s11051-016-3415-0
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发表时间:
2016-04
影响因子:
2.5
通讯作者:
Chu Zengyong
中科院分区:
文献类型:
--
作者:
Yuan Bo;Zou Xianshuai;Yan Tingnan;Fei Junjie;Chu Zengyong
AbstractGraphitic carbon nitride (g-C3N4) nanodots are simply prepared by a thermal treatment of dicyandiamide (DCDA) confined within NaCl templates. Cyano groups are introduced to the nanodots due to the catalytic effect of NaCl. NaCl could facilitate the polymerization of DCDA at lower temperatures, but will promote the decomposition when the temperature is above 550 °C. Thermal treatment at 600 °C for 30 min is the optimal condition for the scalable synthesis of g-C3N4nanodots with an average diameter of ~9 nm. g-C3N4nanodots have a higher band gap of 3.1 eV, which can emit bright blue light due to the decreased diameter, the introduction of cyano groups, and the incorporation of some sodium ions. The residue sodium ions and the cyano groups might lead to the local distortion of the graphitic crystals, or act as recombination centers for the enhanced photoluminescence.Graphical Abstract
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