化学
双氯芬酸钠
溴化物
金属有机骨架
催化作用
金属
无机化学
吸附
有机化学
色谱法
作者
Nan Li,Mianmian Wu,Zenghui Guo,Qingfei Li,Guifang Sun,Wenjing Shen,Minghao Shi,Jiangquan Ma
标识
DOI:10.1016/j.solidstatesciences.2024.107436
摘要
Piezoelectric materials can harvest mechanical energy and convert it into electrical energy, which have lately become highly effective catalysts to sustainable eliminate pollutants. Here, by adding different surfactants to metal-organic framework adenine-UiO-66 (AD-U) materials, the metal-organic framework adenine-UiO-66 (AD-U-S) modified by sodium dodecyl benzene sulfonate (SDBS) and the metal-organic framework adenine-UiO-66 (AD-U-C) modified by cetyltrimethylammonium bromide (CTAB) were prepared for the first time. With the antibiotic diclofenac sodium (DCF) as the target pollutant, the degradation efficiencies of AD-U-S (0.30) and AD-U-C (0.30) were 98 % and 78 % in 30 min, respectively. Specially, the reaction rate constant of AD-U-S (0.30) is 3.5 times that of AD-U-C (0.30). The performance improvement is due to the larger specific surface area, stronger ferroelectric properties, enhanced oxidation capability and higher charge transfer efficiency of AD-U-S (0.30) than that of AD-U-C (0.30). The capture experiments showed that ‧OH and h+ were the main active species on AD-U-S (0.30) and AD-U-C (0.30) during the removal of DCF. In addition, possible pathways for DCF piezodegradation were obtained by liquid-phase mass spectrometry and DFT calculations. This study is benefit to promote the development of piezocatalytic technology for wastewater treatment.
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