花状多孔Fe_(3)O_(4)纳米材料对水中氟离子吸附性能的影响  

Effect of flower-like porous Fe_(3)O_(4) nanomaterials on adsorption performance of fluoride ion in water

作　　者：孙彩玉 黄新凯 石碧清 周知寰 董冰 Sun Caiyu;Huang Xinkai;Shi Biqing;Zhou Zhihuan;Dong Bing(School of Environmental&Chemical Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China;Department of Environmental Engineering,Hebei University of Environmental Engineering,Qinhuangdao 066102,China)

机构地区：[1]黑龙江科技大学环境与化工学院,哈尔滨150022 [2]河北环境工程学院环境工程系,河北秦皇岛066102

出　　处：《黑龙江科技大学学报》2025年第2期225-231,共7页Journal of Heilongjiang University of Science And Technology

基　　金：国家自然科学基金项目(52201249)。

摘　　要：为降低高氟水对人体健康和环境安全造成的危害,采用工艺简单、条件温和的热处理铁的氢氧化物前驱体的方法,制备了花状多孔Fe_(3)O_(4)纳米材料,将其作为吸附材料去除水中氟离子,探究了体系pH、氟离子初始质量浓度、材料投加量等因素对氟离子吸附性能的影响。结果表明:在pH约为3,投加量为1 g/L时,材料对水中氟离子有良好的吸附性能和去除率,其最大吸附容量为24.24 mg/g,对氟离子(5 mg/L)的去除率达到82.96%;材料对氟离子的吸附过程符合Langmuir模型和准二阶动力学模型,属于单层化学吸附,材料能够被有效富集和回收。This paper aims to mitigate the health risks and environmental hazards caused by fluoride-contaminated water.By using the hydroxide precursors method of a simple and mild thermal treatment for iron,the study involves preparing flower-like porous Fe_(3)O_(4) nanomaterials as an adsorbent for fluoride removal,and systematically investigating the effects of system pH,initial fluoride concentration,and adsorbent dosage on adsorption performance of fluoride ion.The results show that the Fe_(3)O_(4) nanomaterial at pH is approximately 3 with a dosage of 1 g/L,offers better adsorption and removal rate to the fluoride ion in water with a maximum adsorption capacity of 24.24 mg/g,and an 82.96%removal rate of fluoride ion(5 mg/L).The adsorption process conforms to both the Langmuir isotherm model and pseudo-second-order kinetic model,falling into monolayer chemical adsorption.This material could be collected and recycled effectively.

关 键 词：水污染 Fe_(3)O_(4) 氟离子 吸附 

分 类 号：X522[环境科学与工程—环境工程] TQ424[化学工程]