采用共沉淀法制备Mn-Al双金属氢氧化物吸附剂,优化了合成条件,并利用扫描电子显微镜(Scanning electron microscope,SEM)及能谱分析仪(Energy dispersive spectrometer,EDS)、X射线衍射仪(X-ray diffraction,XRD)、热重分析仪(Thermogravimetric analyzer,TGA)、比表面积分析仪(Brunauer-Emmett-Teller surface area,BET)等对吸附材料进行表征探讨.研究结果表明pH值和共存离子等因素对Mn-Al双金属氢氧化物吸附剂除氟效能有一定的影响,在pH为6时,达到最大吸附容量,为44.15 mg·g-1,氯离子和硝酸根离子能够提高吸附剂除氟效率,磷酸根离子与氟离子有一定的竞争吸附.
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