摘 要：本文制备了不同mol 配比的g-C3N4/ZnO 样品，通过X 射线衍射、扫描电镜、光催化降解等测试方法研究了样品的物相组成、微观形貌和降解性能。X 射线衍射测试结果显示随着体系中ZnO 含量的增加，样品的衍射峰有向高角度偏移的趋势。使用扫描电镜观测了不同放大倍数下的样品形貌，观察到了结合在一起的絮状结构g-C3N4 和具有规则外形的ZnO 晶粒。发现mol 比为1：1 的g-C3N4/ZnO 样品对亚甲基蓝的光催化降解性能较好。
关键词：g-C3N4；ZnO；X 射线衍射；扫描电镜；光催化
中图分类号：O78；O643.36 文献标识码：A 文章编号：2096-4706（2019）16-0033-03
Structure and Photocatalytic Properties of g-C3N4/ZnO
LI Weihui，HUANG Junxiang，YANG Jin，DAI Huihong，HUANG Yi
（College of Electrical & Information Engineering，Southwest Minzu University，Chengdu 610041，China）
Abstract：In this paper,g-C3N4/ZnO samples with different mol ratios were prepared. The phase composition，morphology and degradation performance of the samples were studied by X-ray diffraction，scanning electron microscopy and photocatalytic degradation.The X-ray diffraction results show that the diffraction peaks of the samples tend to shift to high angles with the increase of ZnO content in the system. The morphology of samples at different magnification was observed by scanning electron microscopy. The flocculent structure g-C3N4 and the regular shape of ZnO grains were observed. It was found that the g-C3N4/ZnO sample with mol ratio of 1:1 had better photocatalytic degradation of methylene blue.
Keywords：g-C3N4；ZnO；X-ray diffraction；scanning electron microscope；photocatalytic
基金项目：西南民族大学2018 国家级大学生创新训练支持项目：高分子网络凝胶法制备纳米ZnO 的光催化性能研究。
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作者简介：
黎炜慧（1995-），女，汉族，广东新兴人，本科在读，研究方向：光电信息材料；
通讯作者：
黄毅（1973-），男，汉族，四川南部人，副教授，材料物理与化学专业博士研究生，研究方向：光电信息材料。