摘要
制备了一种新型生物玻璃纳米球（BGN）,研究了该材料对水中亚甲基蓝的吸附性能。结果表明,在p H值为7～12时,吸附效果均较好。亚甲基蓝去除率在反应前30 min急剧增加,在100 min时达到平衡。吸附反应符合准二级动力学方程和Langmuir等温吸附模型。在30℃时,材料的饱和吸附量为80 mg/g,且吸附量随温度的升高而增大,为吸热反应。材料可有效分离、回收和再生,是一种优良的吸附剂。
A novel bioglass nanosphere was prepared,and the adsorption characteristics on methylene blue of the material were discussed. The results showed that the adsorption efficiency was satisfied with the p H value in the range of 7 to 12. The methylene removal rate increased dramatically within the first 30 min and the reaction reached to an equilibrium at 100 min. The adsorption reaction fitted well with the pseudo-second order kinetic model and the Langmuir isotherm model. The adsorption reaction was endothermic process and the saturated adsorption capacity of the material was 80 mg / g at 30 ℃. The bioglass nanosphere could be separated and recycled effectively,and it was an excellent adsorbent.
出处
《供水技术》
2016年第2期32-36,共5页
Water Technology
关键词
生物玻璃
亚甲基蓝
吸附
再生
bioglass nanosphere
methylene blue
adsorption
recycle
