铀在FeCl3改性红壤上的吸附行为

doi:10.16085/j.issn.1000-6613.2017-0618

化工进展 ›› 2017, Vol. 36 ›› Issue (12): 4679-4685.DOI: 10.16085/j.issn.1000-6613.2017-0618

铀在FeCl₃改性红壤上的吸附行为

潘涛, 于涛, 梁诗敏, 李红, 侯瑞瑶

东华理工大学核科学与工程学院, 江西南昌 330013

收稿日期:2017-04-10 修回日期:2017-05-27 出版日期:2017-12-05 发布日期:2017-12-05
通讯作者: 于涛,副教授,研究方向为环境放射化学。
作者简介:潘涛(1994-),男,硕士研究生。
基金资助:
国家自然科学基金（21561001）及江西省自然科学基金（20161BAB203100）项目。

Sorption behavior of U(Ⅵ) on FeCl₃ modified Red Earth

PAN Tao, YU Tao, LIANG Shimin, LI Hong, HOU Ruiyao

School of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, Jiangxi, China

Received:2017-04-10 Revised:2017-05-27 Online:2017-12-05 Published:2017-12-05

摘要/Abstract

摘要： 采用分光光度法和批处理法研究了U（Ⅵ）在FeCl₃改性红壤上的吸附行为，并探讨了pH、离子强度、腐植酸、接触时间、温度等因素对吸附行为的影响。对天然红壤（NRE）和改性红壤（IMRE）进行SEM、XRD和FTIR表征，并讨论了U（Ⅵ）在改性红壤上的吸附动力学以及热力学行为。结果表明，改性红壤较天然红壤有更强的吸附能力，准二阶动力学模型可以用来描述铀在改性红壤上的吸附。通过对溶液pH和离子强度因素的研究，当溶液的pH < 8时吸附率随pH的升高而增大；随着pH的继续上升，吸附率则逐渐降低，并发现高离子强度不利于对铀的吸附。在较低pH下，腐植酸对吸附有加强的作用，而随着pH的上升，腐植酸对吸附有抑制作用。Freundlich模型可以较好地描述改性红壤对U（Ⅵ）的热力学吸附过程。相应的热力学函数表明，改性红壤对U（Ⅵ）的吸附为自发且吸热的过程。

关键词: 改性红壤, 铀, 吸附, 动力学, 热力学

Abstract: Sorption of U(Ⅵ) on inorganic modified Red Earth(IMRE) as a function of pH,ionic strength,humic acid,contact time and temperature was investigated under ambient conditions with spectrometer. The adsorption process was analyzed by thermodynamics and kinetics,and the natural Red Earth(NRE) and inorganic modified Red Earth(IMRE)sample was characterized by SEM,XRD and FTIR. The results showed that the IMRE has stronger adsorption capacity than NRE,and the adsorption of U(Ⅵ) on IMRE could be interpreted kinetically by a pseudo-second-order model. The pH and ionic strength of the solution has a great effect on the adsorption of uranium,the adsorption rate increases with the increase of pH at pH<8. With the increase of pH,the adsorption rate decreases gradually. It was found that the high ionic strength is not conducive to the adsorption of uranium. The presence of HA enhances the adsorption at lower pH,while reduces the adsorption at higher pH range. The adsorption of U(Ⅵ) onto IMRE could be described by Freundlich isothermal adsorption equation. The corresponding thermodynamic functions show that the adsorption of U(Ⅵ) on IMRE is spontaneous and endothermic.

Key words: modified Red Earth(IMRE), uranous, adsorption, kinetics, thermodynamics

中图分类号:

潘涛, 于涛, 梁诗敏, 李红, 侯瑞瑶. 铀在FeCl₃改性红壤上的吸附行为[J]. 化工进展, 2017, 36(12): 4679-4685.

PAN Tao, YU Tao, LIANG Shimin, LI Hong, HOU Ruiyao. Sorption behavior of U(Ⅵ) on FeCl₃ modified Red Earth[J]. Chemical Industry and Engineering Progress, 2017, 36(12): 4679-4685.

参考文献

[1] 罗上庚. 核废物的安全和环境影响[J].安全与环境学报,2001,1(2):16-20. LUO Shanggeng.Safety and environmental impact of nuclear waste[J].Journal of Safety and Environment,2001,1(2):16-20.
[2] 李琼芳,刘明学,康晋梅,等.微生物与放射性核素相互作用的研究进展[J].环境科学与技术,2008,31(10):67-70. LI Qiongfang,LIU Mingxue,KANG Jinmei,et al. Advances in the study of the interaction between microorganisms and radionuclides[J]. Environmental Science & Technology,2008,31(10):67-70.
[3] 陆朝阳,沈莉莉,张全兴.吸附法处理染料废水的工艺及其机理研究进展[J].工业水处理,2004,24(3):12-16. LU Chaoyang,SHEN Lili,ZHANG Quanxing.Study on the process and mechanism of adsorption process for dye wastewater treatment[J].Industrial Water Treatment,2004,24(3):12-16.
[4] LI S Y,XIE S B,ZHAO C,et al. Study on adsorption of uranium in wastewater by clay[J]. Applied Mechanics & Materials,2012, 209-211:2081-2085.
[5] 侯作贤.U(Ⅵ)在花岗岩组分矿物上的吸附行为研究[D]. 兰州:兰州大学,2015. HOU Zuoxian.Adsorption behavior of U(Ⅵ) on granite mineral minerals[D]. Lanzhou:Lanzhou University,2015.
[6] 王晓丽.U(Ⅵ)和Th(Ⅵ)在高岭土上的吸附行为研究[D]. 兰州:兰州大学,2010. WANG Xiaoli.Adsorption behavior of U(Ⅵ) and Th(Ⅵ)on kaolin[D]. Lanzhou:Lanzhou University, 2010.
[7] 夏良树,黄欣,曹存存,等.红壤胶体对U(Ⅵ)的吸附性能及机理[J].原子能科学技术,2013,47(10):1692-1699. XIA Liangshu,HUANG Xin,CAO Cuncun,et al.Adsorption properties and mechanism of colloid on U(Ⅵ)[J]. Atomic Energy Science and Technology,2013,47(10):1692-1699.
[8] 柴新军,张卫锋,陈佩杭,等. 红壤吸附特性研究[M]//黄润秋,许强. 第三届全国岩土与工程学术大会,四川. 成都:四川科学技术出版社,2009:588-590. CAI Xinjun,ZHANG Weifeng,CHEN Peihang,et al.Study on adsorption characteristics of red soil[M]//Huang Runqiu,Xu Qiang.The Third National Conference on Geotechnical and Engineering.Chengdu, Sichuan:Sichuan Science and Technology Press,2009:588-590.
[9] 朱海军,廖家莉,张东,等.土壤腐殖酸的提取及其对U(Ⅵ)的吸附[J]. 原子能科学技术,2007,41(6):683-688. ZHU Haijun,LIAO Jiali,ZHANG Dong,et al.Extraction of humic acid from soil and adsorption of U(Ⅵ)[J].Atomic Energy Science and Technology,2007,41(6):683-688.
[10] 蔡龙飞,陈国树.凹凸棒石粘土动态法分离钍(Ⅳ)的研究[J].江西科学,2003(2):345-352. CAI Feilong,CHEN Guoshu. Study on separation of thorium (Ⅳ) by dynamic analysis of attapulgite clay[J].Jiangxi Science, 2003(2):345-352.
[11] 潘多强.U(Ⅵ)、Th(Ⅳ)和Eu(Ⅲ)在花岗岩组分矿物及膨润土上的吸附行为研究[D]. 兰州:兰州大学,2014. PAN Duoqiang.Adsorption behavior of U(Ⅵ)),Th(Ⅳ) and Eu(Ⅲ) on granite mineral and bentonite[D]. Lanzhou:Lanzhou University, 2014.
[12] VADIVELAN V,KUMAR K V.Equilibrium, kinetics, mechanism, and process design for the sorption of methylene blue onto rice husk[J].J. Colloid Interface. Sci.,2005,286(1):90-100.
[13] SHAUKAT M S,SARWAR M I,QADEER R.Adsorption of strontium ions from aqueous solution on Pakistani coal[J].Journal of Radioanalytical and Nuclear Chemistry,2005,265(1):73-79.
[14] ZÜMRIYE Aksu. Application of biosorption for the removal of organic pollutants:a review[J].Process Biochemistry, 2005, 40(3/4):997-1026.
[15] 熊正为,王清良,郭成林. 蒙脱石吸附铀机理实验研究[J].湖南师范大学自然科学学报,2007,30(3):75-79. XIONG Weizheng,WANG Qingliang,GUO Chenglin. Experimental study on adsorption of uranium by montmorillonite[J].Journal of Natural Science of Hunan Normal University,2007,30(3):75-79.
[16] 谢祖芳,何星存,夏金虹,等. 苦味酸在聚酰胺树脂上的吸附热力学及动力学[J].化学研究,2003,14(4):53-56. XIE Zufang,HE Xingcun,XIA Jinhong,et al. Adsorption thermodynamics and dynamics of polyamide to picric acid[J]. Chemicl Researches,2003,14(4):53-56.
[17] FAN Q H,SHAO D D,LU Y,et al.Effect of pH,ionic strength,temperature and humic substances on the sorption of Ni(Ⅱ) to Na-attapulgite[J]. Chemical Engineering Journal,2009,150(1):188-195.
[18] YANG S,WANG X,DAI S,et al.Investigation of 90 Sr(Ⅱ) sorption onto graphene oxides studied by macroscopic experiments and theoretical calculations[J].Journal of Radioanalytical and Nuclear Chemistry,2016,308(2):721-732.
[19] GENÇ-FUHRMAN H,TJELL J C,MCCONCHIE D.Adsorption of arsenic from water using activated neutralized red mud[J]. Environmental Science & Technology,2004,38(8):2428-2434.

铀在FeCl₃改性红壤上的吸附行为

Sorption behavior of U(Ⅵ) on FeCl₃ modified Red Earth

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	崔守成, 徐洪波, 彭楠. 两种MOFs材料用于O₂/He吸附分离的模拟分析[J]. 化工进展, 2023, 42(S1): 382-390.
[2]	陈崇明, 陈秋, 宫云茜, 车凯, 郁金星, 孙楠楠. 分子筛基CO₂吸附剂研究进展[J]. 化工进展, 2023, 42(S1): 411-419.
[3]	许春树, 姚庆达, 梁永贤, 周华龙. 共价有机框架材料功能化策略及其对Hg(Ⅱ)和Cr(Ⅵ)的吸附性能研究进展[J]. 化工进展, 2023, 42(S1): 461-478.
[4]	顾永正, 张永生. HBr改性飞灰对Hg⁰的动态吸附及动力学模型[J]. 化工进展, 2023, 42(S1): 498-509.
[5]	汪鹏, 张洋, 范兵强, 何登波, 申长帅, 张贺东, 郑诗礼, 邹兴. 高碳铬铁盐酸浸出过程工艺及动力学[J]. 化工进展, 2023, 42(S1): 510-517.
[6]	郭强, 赵文凯, 肖永厚. 增强流体扰动强化变压吸附甲硫醚/氮气分离的数值模拟[J]. 化工进展, 2023, 42(S1): 64-72.
[7]	刘阳, 王云刚, 修浩然, 邹立, 白彦渊. 基于动力学分析的核桃壳最佳炭化工艺[J]. 化工进展, 2023, 42(S1): 94-103.
[8]	黄益平, 李婷, 郑龙云, 戚傲, 陈政霖, 史天昊, 张新宇, 郭凯, 胡猛, 倪泽雨, 刘辉, 夏苗, 主凯, 刘春江. 三级环流反应器中气液流动与传质规律[J]. 化工进展, 2023, 42(S1): 175-188.
[9]	王胜岩, 邓帅, 赵睿恺. 变电吸附二氧化碳捕集技术研究进展[J]. 化工进展, 2023, 42(S1): 233-245.
[10]	董佳宇, 王斯民. 超声强化对二甲苯结晶特性及调控机理实验[J]. 化工进展, 2023, 42(9): 4504-4513.
[11]	葛亚粉, 孙宇, 肖鹏, 刘琦, 刘波, 孙成蓥, 巩雁军. 分子筛去除VOCs的研究进展[J]. 化工进展, 2023, 42(9): 4716-4730.
[12]	杨莹, 侯豪杰, 黄瑞, 崔煜, 王兵, 刘健, 鲍卫仁, 常丽萍, 王建成, 韩丽娜. 利用煤焦油中酚类物质Stöber法制备碳纳米球用于CO₂吸附[J]. 化工进展, 2023, 42(9): 5011-5018.
[13]	张振, 李丹, 陈辰, 吴菁岚, 应汉杰, 乔浩. 吸附树脂对唾液酸的分离纯化[J]. 化工进展, 2023, 42(8): 4153-4158.
[14]	姜晶, 陈霄宇, 张瑞妍, 盛光遥. 载锰生物炭制备及其在环境修复中应用研究进展[J]. 化工进展, 2023, 42(8): 4385-4397.
[15]	于静文, 宋璐娜, 刘砚超, 吕瑞东, 武蒙蒙, 冯宇, 李忠, 米杰. 一种吲哚基超交联聚合物In-HCP对水中碘的吸附作用[J]. 化工进展, 2023, 42(7): 3674-3683.