光催化是一种环境友好型技术,能够有效解决环境污染和能源短缺问题,具有广阔的应用前景。其基本原理是半导体催化剂在光照条件下产生具有强氧化还原能力的活性物种,这些活性物种可用来净化污染物、制备氢气、碳还原等。氧化锌/石墨相氮化碳(ZnO/g-C3N4)复合材料具有新颖的结构,以及优良的导电、防光腐蚀等性能,一直是光催化领域的关注热点。ZnO/g-C3N4能有效提高光生载流子的分离效率和可见光利用率,从而提高其光催化性能。主要介绍了ZnO/g-C3N4复合材料的发展现状、制备方法,以及该复合材料在光催化降解污染物、抗菌、析氢、CO2还原等领域的应用,并对未来研究方向进行了展望。
Photocatalysis is an environment-friendly technology,which can effectively solve the problems of environmental pollution and energy shortage and has a broad application prospect.The basic principle is that semiconductor catalysts produce active species with strong oxidation-reduction ability under the condition of light.These active species can be used to purify pollutants,prepare hydrogen,carbon reduction,etc.Zinc oxide/graphite phase carbon nitride composite material (ZnO/g-C3N4) has been a hot topic in the field of photocatalysis due to its novel structure,excellent conductivity and corrosion resistance.ZnO/g-C3N4 can effectively enhance the separation efficiency of photo-generated carrier and the utilization rate of visible light,thereby improving the photocatalytic performance.The development status and preparation methods of ZnO/g-C3N4 were reviewed.The applications of the composites in the fields of photocatalytic degradation of pollutants,antibacterial,hydrogen production,CO2 reduction and so on were also introduced.The research directions in the future were prospected.
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基金资助
国家自然科学基金(22165025,21968032);甘肃省创新驱动援助工程项目(GXH20230817-18);中央高校基础研究基金(31920230051);兰州市科技项目(2023-3-81);甘肃省教育厅:青年博士基金项目(2022QB-029);西北民族大学引进人才科研项目(xbmuyjrc202215)
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