硬模板法制备聚合物半导体氮化碳

发布时间：2018-02-16 06:10

本文关键词： 聚合物半导体石墨相氮化碳光催化剂硬模板法　出处：《高校化学工程学报》2017年04期 　论文类型：期刊论文

【摘要】：聚合物半导体石墨相氮化碳(g-C_3N_4),作为一种非金属可见光光催化剂,在太阳能转化和环境保护方面有着巨大的潜在应用。由于其具有高物理化学稳定性及独特的光捕获性能,可以直接将低密度的太阳能转化为高密度的化学能,或直接降解有机污染物,因此,g-C_3N_4制备和性能的研究引起了国内外研究人员的广泛关注。研究表明,用不同方法和化学工艺对氮化碳在结构上进行改进,可以获得新的理化性质,提高氮化碳的光催化效率,筛选出在特定反应下高效率的氮化碳结构。硬模板法制备g-C_3N_4纳米材料,可以有效地提高其表面积,促进光捕获和光生电子传递,进一步提高光催化效率。今对硬模板法制备氮化碳及研究现状进行了详细介绍,同时对g-C_3N_4光催化剂的发展趋势进行了展望。
[Abstract]:Polymer semiconductor graphite phase carbon nitride g-C3N4D, as a non-metallic visible light catalyst, has great potential applications in solar energy conversion and environmental protection, due to its high physical and chemical stability and unique photocapture properties. Low density solar energy can be directly converted into high density chemical energy, or organic pollutants can be directly degraded. Therefore, the preparation and properties of C3N _ 4 have attracted wide attention from researchers both at home and abroad. By improving the structure of carbon nitride by different methods and chemical processes, new physical and chemical properties can be obtained, the photocatalytic efficiency of carbon nitride can be improved, and the structure of carbon nitride with high efficiency under specific reaction can be screened out. G-C _ 3N _ 4 nanomaterials are prepared by hard template method. It can effectively increase the surface area, promote phototrapping and photoelectron transfer, and further improve the photocatalytic efficiency. In this paper, the preparation of carbon nitride by hard template and its research status are introduced in detail. At the same time, the development trend of g-C _ 3N _ 4 photocatalyst is prospected.
【作者单位】：天津大学化工学院;
【基金】：国家自然科学基金(U1662109)
【分类号】：O643.36;O644.1

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