化学
芘
活性氧
过氧化氢
清除
羟基自由基
抗氧化剂
超氧化物歧化酶
吸附
核化学
有机化学
生物化学
作者
Huimin Zhong,Cong Jiang,Jiahui Zou,Guancheng Zhu,Yanyan Huang
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2023-08-09
卷期号:62 (33): 13168-13172
被引量:2
标识
DOI:10.1021/acs.inorgchem.3c02145
摘要
Barbecue smoke, car exhaust, cigarette smoke, and other waste gases contain toxic reactive oxygen species (ROS) and polycyclic aromatic hydrocarbons (PAHs). Herein, CeO2-based porous carbonaceous frameworks (CeO2 PCFs) were explored as antioxidant nanozymes to scavenge ROS and absorb benzo[a]pyrene (B[a]P). Using cerium-based frameworks as the precursors, CeO2 PCFs were constructed by high-temperature calcination. Due to excellent superoxide dismutase-like and catalase-like activity, CeO2 PCFs could effectively eliminate superoxide radical, hydroxyl radical, and hydrogen peroxide. The 2,2'-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) free radical scavenging assay had substantiated free radical scavenging ability of CeO2 PCFs. In addition, with a large surface area and porous structure, CeO2 PCFs could adsorb B[a]P efficiently. The designed CeO2 PCFs may provide a new opportunity as scavengers of ROS and absorbents of PAHs in some harmful gases.
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