吸附
钴
氧化钴
吸附
化学
氧化物
碳纤维
环境修复
热解
废水
化学工程
核化学
无机化学
环境化学
材料科学
污染
环境工程
复合数
有机化学
环境科学
复合材料
工程类
生物
生态学
作者
Ning Zhao,Qiyi Ma,Baifa Zhang,Yanfu Wei,Dong Liu,Mengyuan Li,Haoyu Li,Peng Yuan
标识
DOI:10.1016/j.biortech.2023.129373
摘要
Spent bleaching earth (SBE), a waste by-product produced from the bleaching step of edible oil by montmorillonite clays (bleaching earth), causes serious public health and environmental problems. Accordingly, in this study, SBE was pyrolyzed to yield mineral carbon materials ([email protected]) and cobalt oxide (Co3O4) was loaded to improve the active site of those materials. Due to the carrier function of [email protected], ultra-fine Co3O4 quantum dots (QDs) (2–6 nm) were homogeneously and robustly immobilized onto [email protected] The obtained adsorbent exhibited high regeneration performance and an outstanding adsorption capacity (253.36 mg/g). It can be attributed to the surface complexation of cobalt with TC being the dominant process contributing to adsorption behavior. Further, Co3O4 [email protected] still maintained adequate sorption capacity at a broad range of pH values and in the presence of co-occurring ions. These results suggested the significant application potential of SBE and demonstrated the efficiency of using Co3O4 [email protected] for wastewater remediation.
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