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一维/二维PANI/g-C3N4复合材料的制备及其光催化性能研究
Preparation and Photocatalytic Properties of One-dimensional/Two-dimensional PANI/g-C3N4 Composites
【摘要】 以三聚氰胺和氯化铵为前驱体通过热共聚合法制备出多孔g-C3N4纳米片,原位聚合法制备出一维纳米纤维PANI与多孔g-C3N4纳米片(PANI/g-C3N4)复合材料。一维纳米纤维PANI具有优异电荷传输性能和良好的可见光响应,可以弥补g-C3N4光生电子对快速复合和可见光响应不足的缺点。多孔g-C3N4纳米片可以提供更多反应活性位点,同时还可以缩短光生电荷从材料内部到表面的传输距离,抑制光生载流子复合,从而提高材料光催化活性。5PANI/g-C3N4在180 min罗丹明B去除率达83%,经过3次循环后,对罗丹明B去除率仍保持83%,显现出优异光催化活性和稳定性。
【Abstract】 Using melamine and ammonium chloride as precursors,porous g-C3N4 nano sheets were prepared by thermal copolymerization,and one-dimensional nano fiber PANI and porous g-C3N4 nano sheets PANI/g-C3N4 composites were prepared by in-situ polymerization.One dimensional nanofiber PANI has excellent charge transfer performance and good visible light response,which can make up for the shortcomings of rapid recombination and insufficient visible light response of g-C3N4 photogenerated electrons.Porous g-C3N4 nanosheets can provide more reactive active sites,shorten the transmission distance of photogenerated charges from the interior of the material to the surface,inhibit the recombination of photogenerated carriers,and improve the photocatalytic activity of the material.The removal rate of Rhodamine B by PANI/g-C3N4 reached 83%in 180 min.after 3 cycles,the removal rate of Rhodamine B remained 83%,showing excellent photocatalytic activity and stability.
【Key words】 PANI; g-C3N4; rhodamine B; photocatalysis; compound material;
- 【文献出处】 广东化工 ,Guangdong Chemical Industry , 编辑部邮箱 ,2023年02期
- 【分类号】O643.36;O644.1;X703
- 【下载频次】128