Ag掺杂的石墨型氮化碳材料光致发光性能的研究

Photoluminescence behavior of Ag-doped graphite-like carbon nitride material

本文采用煅烧的方法制备了Ag-掺杂的石墨型氮化碳(Ag/g-C3N4)材料。通过考查银与三聚氰胺的质量比,最终以6.25%作为最佳掺杂银量来制备此材料。同时本文也报道了该材料的光致发光(PL)行为,该行为对微量的Cu2+的检测具有较好的选择性,其检测限可达1nmol·L-1。可见,我们制备的这种材料为微量的Cu2+的检测提供了一个简单而方便的方法。

In this paper, considering the ratio of Ag and melamine, Ag-doped graphite-like carbon nitride （Ag/g-C3 N4 ）material was finally prepared by calcining with 6. 25% the optimum doping ~.mount of Ag. The photoluminescence（PL） behavior of this material was studied,which demostrates that it is selective for the detection of trace amount of Cu^2＋ , and the limit of detection was I nM. Thus,the as-prepared material provides a simple and convenient method for the detection of trace amount of Cu^2＋.