吸附
2,4-二氯苯酚
光催化
催化作用
铜
降级(电信)
化学工程
纳米颗粒
膨润土
材料科学
氧化物
核化学
化学
无机化学
纳米技术
有机化学
沉积物
电信
计算机科学
工程类
生物
古生物学
作者
Hongjuan Qin,Zhen Wang,Shaocong Yang,Wenqiang Jiang,Yawei Gu,Jiachuan Chen,Guihua Yang
标识
DOI:10.1016/j.jclepro.2022.134587
摘要
In this work, a novel cuprous sulfide (Cu2S) and cuprous oxide (Cu2O) decorated iron-based nanoparticles (INPs) were developed (Cu2S/Cu2[email protected], B denote bentonite) and applied for 2,4-dichlorophenol (2,4-DCP) degradation. The physicochemical properties of the as-prepared catalyst were characterized via SEM, TEM, BET, DRS, and EIS. Results of TEM images exhibited the deposition of copper species could improve the morphology and reduce the mean particles size effectively. Cu2S/Cu2[email protected] exhibited excellent catalytic performance to degrade 2,4-DCP by adsorption, Fenton-like oxidation and photocatalytic processes. Under optimal conditions, the degradation percentages caused by adsorption, adsorption-Fenton like and adsorption-Fenton like-photocatalytic processes were about 27.6%, 74.58% and 99.8%, respectively. Furthermore, GC-MS served to identify the intermediates and final products, a possible mechanism and degradation pathway for 2,4-DCP were proposed based on the intermediate by-products detection and active radicals’ detection. The reusability of Cu2S/Cu2[email protected] was achieved with four successive runs. Research provides a promising approach for the treatment of chlorophenols polluted water.
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