Decoration of TiO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub> Z-scheme by carbon dots as a novel photocatalyst with improved visible-light photocatalytic performance for the degradation of enrofloxacin
作者:Yuehan Su、Ping Chen、Fengliang Wang、Qianxin Zhang、Tiansheng Chen、Yingfei Wang、Kun Yao、Wenying Lv、Guoguang Liu
DOI:10.1039/c7ra05485h
日期:——
370–450 nm region. DMPO spin-trapping ESR spectra demonstrated the existence of O2˙− and ·OH. The photocatalytic activity of the CDs (1.0 wt%)/TiO2/g-C3N4 was remarkably enhanced as compared to that of the single components (TiO2 and g-C3N4) and double component (TiO2/g-C3N4) towards the degradation of enrofloxacin (ENX) under visible-light irradiation. About 91.6% of ENX was decomposed by CDs (1.0 wt%)/TiO2/g-C3N4
通过将TiO 2掺杂在TiO 2纳米颗粒和gC 3 N 4纳米片的表面中,通过方便的水热过程成功地合成了新型的可见光驱动的碳点(CDs)/ TiO 2 / gC 3 N 4,并通过表征进行了证实。方法。紫外可见漫反射光谱(DRS)显示,CDs / TiO 2 / gC 3 N 4在370-450 nm区域显示出明显的附加吸收。DMPO自旋捕集ESR谱证明的O-存在2 ˙ -和·OH。CD(1.0 wt%)/ TiO 2的光催化活性与单组分(TiO 2和gC 3 N 4)和双组分(TiO 2 / gC 3 N 4)相比,/ gC 3 N 4显着提高了可见光照射下恩诺沙星(ENX)的降解。 。1小时内,CDs(1.0 wt%)/ TiO 2 / gC 3 N 4分解了大约91.6%的ENX ,分别是TiO 2,gC 3 N 4和TiO的3.95倍,4.82倍和1.69倍2(90.0 wt%)/