人工晶体学报2017，Vol.46Issue(7)：1400-1407,1420,9.
羟基磷灰石/活性炭复合吸附剂的制备及其除氟性能研究
Fabrication of Hydroxyapatite/Activated Carbon Composites Adsorbents and Its Absorption Property for Fluoride
摘要
Abstract
Hydroxyapatite/activated carbon (HAP/AC) composites adsorbents were fabricated by blend with hydroxyapatite and activated carbon following activation and calcination.The effects of the HAP/AC mass ratio, polyvinyl acetate concentration, calcination time and temperature on adsorption efficiency were investigated.The results show that the optimal conditions were happened in HAP/AC (mass ratio) 4∶1, PVA concentration 3wt%, calcination temperature 350 ℃ and calcination time 3.5 h, producing fluoride adsorption efficiency to 70.69%.The adsorption property of HAP/AC adsorbents toward simulative fluoride waste water by static adsorption and dynamic column adsorption were investigated, moreover the mechanism of the adsorption process was determined.The results show that the fitness of adsorption data by Langmuir model is superior to Freundlich model.Surface monolayer adsorption are dominated in the adsorption of fluoride, and active center with ion-exchange capacity play a leading role in adsorption process.At last, field studies were carried out with the fluoride containing water sample collected from a fluoride-endemic area in order to test the suitability of the adsorbents at field conditions.关键词
羟基磷灰石/活性炭/吸附剂/除氟Key words
hydroxyapatite/activated carbon/adsorbents/defluoridation分类
资源环境引用本文复制引用
林皓,胡家朋,穆寄林,饶瑞晔,刘瑞来,吴代赦..羟基磷灰石/活性炭复合吸附剂的制备及其除氟性能研究[J].人工晶体学报,2017,46(7):1400-1407,1420,9.基金项目
国家自然科学基金(51406141) （51406141）
福建省教育厅项目(JZ160333) （JZ160333）
福建省大学生创新性实验(201610397040) （201610397040）
