TiO2量子点修饰g-C3N4及其光催化脱色性能研究
Iron Steel Vanadium Titanium（2018）
Abstract
为进一步提高g-C3N4光催化活性,采用等孔体积浸渍法制备了TiO2量子点修饰的g-C3N4.研究结果表明TiO2量子点修饰使g-C3N4的XRD衍射峰、表面性质参数、粒径分布和对可见光的吸收有显著影响.以罗丹明B为模拟污染物,在模拟太阳光照射下对所制备TiO2/g-C3N4光催化性能进行了测试.结果表明,经TiO2量子点修饰后g-C3N4光催化性能显著增强,当TiO2/g-C3N4质量比为3％时,所制备样品具有最高的活性.捕获剂测试结果表明,·O2-离子是光催化降解反应中主要的活性物种.
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