三聚氰胺基生物锰氧化物的制备及其对四环素的去除研究  

Preparation of Melamine-based Manganese Oxides and Removal of Tetracycline

作　　者：宋根娣 王佳伟 于天龙 王梦博 冯梦宇 崔宁宁 SONG Gendi;WANG Jiawei;YU Tianlong;WANG Mengbo;FENG Mengyu;CUI Ningning(School of Environmental Engineering and Chemistry,Luoyang Institute of Science and Technology,Luoyang 471023,China)

机构地区：[1]洛阳理工学院环境工程与化学学院,河南洛阳471023

出　　处：《水处理技术》2025年第2期73-78,共6页Technology of Water Treatment

基　　金：国家自然科学基金(31900005);河南省科技攻关项目(232102320138);河南省科技攻关项目(242102320157)。

摘　　要：生物锰氧化物是由微生物成矿作用介导产生的一类不溶性高价锰氧化物,对水中有机污染物如抗生素等均有显著的去除效果。由于生物锰氧化物呈粉末状,难以回收,制约了其在实际中的应用。本研究通过共培养接种法将生物锰氧化物负载于三聚氰胺海绵,制备质量轻、形状固定的三聚氰胺基生物锰氧化物(BMO@M)。通过扫描电镜、X射线光电子能谱等对其进行表征,进一步检测BMO@M对水中四环素的去除效果及不同pH条件、循环次数对去除效果的影响。结果表明,生物锰氧化物均匀分布于三聚氰胺中,负载率达60%以上。制备的BMO@M前30 min内对四环素的去除率达68.7%,相比于单纯生物锰氧化物提高21.2%,4 h的四环素去除率为95.7%,酸性条件下的去除效果高于中性和碱性,且循环使用5次,去除效果仍保持50%以上。本研究制备了一种新型三聚氰胺基生物锰氧化物材料,对四环素类抗生素有优良的去除效率,操作简单、循环使用效率高,为水体中有机污染物特别是抗生素类的去除提供新的思路。Biological manganese oxide is an insoluble manganese oxide produced through microbial mineralization,exhibiting notable efficacy in removing organic pollutants,including antibiotics,from water.In this study,a manganese-oxidizing bacterium(M1)was selected for its capacity to efficiently remove tetracycline.A melamine-based biomanganese oxide(BMO@M),characterized by low density and fixed geometry,was prepared by loading biomanganese oxide onto melamine sponge via a co-culture inoculation method.BMO@M was characterized using scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS).Additionally,its tetracycline removal performance was measured by spectrophotometry,and the effects of pH and recycling cycles were investigated.Results showed uniform distribution of BMO@M in the melamine sponge,with a loading rate exceeding 60%.In the first 30 minutes,BMO@M removed 68.7%of tetracycline,21.2%higher than the pure biomanganese oxide and achieved a 95.7%removal rate at four hours.Removal was more efficient under acidic conditions than neutral or alkaline conditions,maintaining above 50%after five reuse cycles.In conclusion,a novel melamine-based biomanganese oxide material was successfully prepared,demonstrating excellent tetracycline removal efficiency and robust recyclability via a simple process.

关 键 词：三聚氰胺海绵 生物锰氧化物 四环素 循环使用 去除率 

分 类 号：X703[环境科学与工程—环境工程]