Recently, utilizing biomass to synthesize novel functional materials has been a focus of significant interests in a myriad of fields such as environmental remediation. Herein, Ca–Fe–O porous materials were successfully synthesized by utilizing oyster shells and K2FeO4 according to a simple one-pot method. According to the result of TEM, Fe3O4 was obtained by reducing K2FeO4 and then deposited in situ on the Ca(OH)2 nanosheets derived by CaO precursor. Such Ca–Fe–O porous materials showing outstanding adsorption capacity for RhB (146.11[Formula: see text]mg/g) and MB (135.70[Formula: see text]mg/g), additionally, would generate abundant H2O2 and remove the organic compounds through a Fenton-like reaction. It is hoped that our work could spur further interest in utilizing biomass to rationally design a variety of promising functional materials for environmental remediation.

中文翻译：

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牡蛎壳衍生的多功能 Ca-Fe-O 多孔材料作为类芬顿试剂的简便制备用于环境修复

最近，利用生物质合成新型功能材料已成为环境修复等众多领域的重要关注焦点。在此，利用牡蛎壳和 K 成功合成了 Ca-Fe-O 多孔材料。2氧化铁4根据简单的一锅法。根据 TEM 的结果，Fe3○4通过减少 K 获得2氧化铁4然后原位沉积在 Ca(OH)2由 CaO 前体衍生的纳米片。这种Ca-Fe-O多孔材料对RhB（146.11[公式：见正文]mg/g）和MB（135.70[公式：见正文]mg/g）表现出出色的吸附能力，此外，还会产生丰富的H2○2并通过类芬顿反应去除有机化合物。希望我们的工作能够激发人们对利用生物质合理设计各种有前途的环境修复功能材料的兴趣。