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投稿时间：2022-07-08 修订日期：2022-07-19 录用日期：2022-07-21 网络发布日期：2022-10-14
投稿时间：2022-07-08 修订日期：2022-07-19 录用日期：2022-07-21 网络发布日期：2022-10-14
中文摘要: 通过液相还原法制备了活性炭负载纳米零价铁-羟基磷灰石（AC@Fe0-HAP）复合材料，研究了pH、AC@Fe0-HAP投加量、Mn(Ⅱ)初始浓度和反应时间对AC@Fe0-HAP吸附Mn(Ⅱ)的效果。采用吸附动力学模型、等温吸附线模型进行拟合，进一步了解复合材料吸附机理。结果表明，当pH=5、温度25 ℃、Mn(Ⅱ)初始浓度5 mg/L、投加量0.10 g时，AC@Fe0-HAP对Mn(Ⅱ)的吸附效果最好，在反应时间为120 min时达到吸附平衡，吸附量为1.86 mg/g。AC@Fe0-HAP对Mn(Ⅱ)的吸附更加符合Langmuir等温线模型和准二级动力学模型，吸附过程主要为化学吸附、单层吸附。
Abstract:Activated carbon-supported zero-valent iron-hydroxyapatite(AC@Fe0-HAP) composites were prepared by liquid phase reduction method, and the effects of pH value, AC@Fe0-HAP dosage, initial concentration of Mn(Ⅱ), and reaction time on adsorption of Mn(Ⅱ) by AC@Fe0-HAP were investigated. The adsorption kinetics model and isothermal adsorption curve model were used to further understand adsorption mechanism of the composites. The results show that when pH value is 5, temperature is 25 ℃, initial concentration of Mn(Ⅱ) is 5 mg/L, and dosage is 0.10 g, the adsorption effect of AC@Fe0-HAP for Mn(Ⅱ) is the best, the adsorption equilibrium is reached at the reaction time of 120 min, and the adsorption capacity is 1.86 mg/g. The adsorption of Mn(Ⅱ) by AC@Fe0-HAP accords with Langmuir isotherm model and quasi-second-order kinetic model. The adsorption process is monolayer adsorption and chemical adsorption.
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基金项目:江西省自然科学基金资助项目(20202BABL204069)；核资源与环境国家重点实验室自主基金（2020Z06）
| 作者 | 单位 | |
| 王新宇 | 东华理工大学 水资源与环境工程学院 | w18170877868@126.com |
| 张卫民* | 东华理工大学 核资源与环境国家重点实验室 | wmzhang@ecit.cn |
| 王玉罡 | 东华理工大学 水资源与环境工程学院 | 575530293@qq.com |
| 卢琪愿 | 东华理工大学 水资源与环境工程学院 | 1500512838@qq.com |
引用文本：
王新宇,张卫民,王玉罡,卢琪愿.活性炭负载纳米零价铁-羟基磷灰石的制备及其对Mn(Ⅱ)的吸附性能[J].有色金属（冶炼部分）,2022(11):97-104.
WANG Xin-yu,ZHANG Wei-min,WANG Yu-gang,LU Qi-yuan.Preparation of Nano-zero-valent Iron - Hydroxylapatite Coated Activated Carbon and Its Adsorption Properties for Mn(Ⅱ)[J].Nonferrous Metals (Extractive Metallurgy),2022(11):97-104.
王新宇,张卫民,王玉罡,卢琪愿.活性炭负载纳米零价铁-羟基磷灰石的制备及其对Mn(Ⅱ)的吸附性能[J].有色金属（冶炼部分）,2022(11):97-104.
WANG Xin-yu,ZHANG Wei-min,WANG Yu-gang,LU Qi-yuan.Preparation of Nano-zero-valent Iron - Hydroxylapatite Coated Activated Carbon and Its Adsorption Properties for Mn(Ⅱ)[J].Nonferrous Metals (Extractive Metallurgy),2022(11):97-104.
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