Facile synthesis of phosphorus doped graphitic carbon nitride polymers with enhanced visible-light photocatalytic activity
Facile synthesis of phosphorus doped graphitic carbon nitride polymers with enhanced visible-light photocatalytic activity
复制标题
轻松合成具有增强可见光催化活性的磷掺杂石墨氮化碳聚合物
DOI：
10.1016/j.materresbull.2013.05.040
复制
发表时间：
2013-09-01
影响因子：
5.4
通讯作者：
Mu, Xindong
中科院分区：
文献类型：
--
作者：
Zhang, Ligang;Chen, Xiufang;Mu, Xindong
以双氰胺单体和含磷离子液体为原料，采用一锅法绿色合成法制备了掺磷氮化碳材料。对所制备的材料进行了表征，并研究了它们在可见光下降解有机污染物(如罗丹明B、甲基橙等)的无金属光催化剂。结果表明，掺磷氮化碳对水溶液中罗丹明B和甲基橙的光催化活性高于未掺杂的g-C3N4，这归因于掺磷碳氮化物具有良好的织构、光学和电子性质。由于焙烧后的催化剂具有较高的比表面积和较小的结构尺寸，简单的后处理进一步提高了光催化体系的活性。掺磷氮化碳具有很高的可见光催化活性，在光化学领域具有广阔的应用前景。(C)2013爱思唯尔有限公司。保留所有权利。
Phosphorus-doped carbon nitride materials were prepared by a one-pot green synthetic approach using dicyandiamide monomer and a phosphorus containing ionic liquid as precursors. The as-prepared materials were subjected to several characterizations and investigated as metal-free photocatalysts for the degradation of organic pollutants (dyes like Rhodamine B, Methyl orange) in aqueous solution under visible light. Results revealed that phosphorus-doped carbon nitride have a higher photocatalytic activity for decomposing Rhodamine B and Methyl orange in aqueous solution than undoped g-C3N4, which was attributed to the favorable textural, optical and electronic properties caused by doping with phosphorus heteroatoms into carbon nitride host. A facile postannealing treatment further improved the activity of the photocatalytic system, due to the higher surface area and smaller structural size in the postcalcined catalysts. The phosphorus-doped carbon nitride showed high visible-light photocatalytic activity, making them promising materials for a wide range of potential applications in photochemistry. (C) 2013 Elsevier Ltd. All rights reserved.