光降解
光催化
石墨氮化碳
罗丹明B
光化学
材料科学
可见光谱
猝灭(荧光)
化学工程
苯酚
纳米技术
化学
催化作用
有机化学
荧光
工程类
物理
量子力学
光电子学
作者
Waheed Iqbal,Bo Yang,Xu Zhao,Muhammad Waqas,Muhammad Rauf,Chongqi Guo,Jinlong Zhang,Yanping Mao
标识
DOI:10.1016/j.apcata.2019.01.010
摘要
Metal-free graphitic carbon nitride (g-C3N4) displays benign photocatalytic properties for contaminants photodegradation under visible photoirradiation. Devising a simple modification strategy for the improved photocatalytic activity of g-C3N4 has always been desired. Herein, we report a spherical worm-like g-C3N4 nanostructure via facile ammonium lauryl sulfate (ALS) gaseous bubbles templating approach. This strategy employing ALS as gaseous bubbles templating agent bestowed not only g-C3N4 with improved specific surface areas, a porous structure with more exposed photocatalytic reactive sites and mass diffusion of reactants molecules, but also rendered extended optical absorption range and suppression of the photoinduced charge carriers recombination. As a result, the ALS-mediated g-C3N4 photocatalysts unfolded excellent photocatalytic performance regarding photodegradation of rhodamine B (RhB) and phenol under visible photoirradiation. Additionally, the quenching effects of various scavengers proved that the holes (h+) and superoxide anions (O2−) radicals were the main active species responsible for ameliorated photocatalytic performance for rhodamine B and phenol photodegradation. Our work offers a straightforward approach for developing high-performance metal free photocatalysts with great potential for environmental remediation.
科研通智能强力驱动
Strongly Powered by AbleSci AI