催化作用
化学
降级(电信)
浸出(土壤学)
过氧化氢
亚甲蓝
光催化
多相催化
化学工程
光化学
无机化学
有机化学
土壤水分
环境科学
土壤科学
工程类
电信
计算机科学
作者
Biao Li,Xiaolong Cheng,Rusen Zou,Xiaoyu Yong,Chengfang Pang,Yanyan Su,Yifeng Zhang
标识
DOI:10.1016/j.apcatb.2021.121009
摘要
Single atom catalysts (SACs) are emerging as efficient peroxide activators to eliminate water contaminants, yet the correlation between structure and catalytic activity remains elusive. Here we moderated the Fe sites on the carbon nitride and obtained a combination of single atoms and clusters sites on FeCN5 with the recorded methylene blue oxidation rate of 59.43 mg/L min−1 via direct ultrafast H2O2 activation. The excellent performance was mainly ascribed to the high active sites exposure, self-creating acidic microenvironment, and assistance of leaching Fe. Nevertheless, excessive exposure of the catalyst at high pH may destroy the surface environment and inhibit H2O2 activation. To solve this issue, we developed a flow-through filter that reached nearly 100% pollutant degradation and H2O2 utilization and stability over 320 h when treating actual wastewater treatment. These findings provide profound insights into catalyst manipulation at atomic scales and the development of viable catalytic systems toward real-world application.
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