离子强度、pH和腐殖酸浓度对63Ni(Ⅱ)在γ-Al2O3上吸附的影响

刘正杰; 陈磊; 董云会; 李月云; 胡君; 王平

离子强度、pH和腐殖酸浓度对⁶³Ni(Ⅱ)在γ-Al₂O₃上吸附的影响

1.
山东理工大学化工学院,山东淄博255049
2.
中国科学院等离子体物理研究所,安徽合肥230031

计量
- 文章访问数: 419
- HTML全文浏览量: 0
- PDF下载量: 2070
出版历程
- 收稿日期: 1899-12-31
- 修回日期: 1899-12-31
- 刊出日期: 2012-12-19

Effect of Ionic Strength, Temperature and Humic Substances Concentration on the Sorption of ⁶³Ni(Ⅱ) toγ-Al₂O₃

1.
School of Chemical Engineering, Shandong University of Technology, Zibo 255049, China
2.
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

摘要

摘要: 采用静态批式法研究了⁶³Ni(Ⅱ)在γ-Al₂O₃上的吸附行为。探讨了震荡时间、pH、离子强度、γ-Al₂O₃浓度以及腐殖酸对吸附的影响。实验结果表明：在低pH条件下，离子强度对⁶³Ni(Ⅱ)的吸附影响很大，⁶³Ni(Ⅱ)的吸附主要是离子交换和外层表面络合作用；在高pH条件下，⁶³Ni(Ⅱ)的吸附受pH影响较小，⁶³Ni(Ⅱ)的吸附主要是内层表面络合作用。溶液中的腐殖酸，在低pH条件下促进⁶³Ni(Ⅱ)在γ-Al₂O₃上的吸附，而在高pH条件下抑制⁶³Ni(Ⅱ)在γ-Al₂O₃上的吸附。
- γ-Al₂O₃ /
- 吸附 /
- ⁶³Ni(Ⅱ) /
- 腐殖酸
Abstract: The sorption of ⁶³Ni(Ⅱ) on γ-Al₂O₃ was studied by using batch technique. The effect of contact time, pH, ionic strength, γ-Al₂O₃ content and humic acid on the sorption of ⁶³Ni(Ⅱ) on γ-Al₂O₃ was investigated under ambient conditions. The results suggest that the sorption of ⁶³Ni(Ⅱ) is strongly dependent on ionic strength at low pH values, and independent on it at high pH values. The sorption of ⁶³Ni(Ⅱ) at low pH is mainly dominated by ion exchange and/or outersphere surface complexation, whereas the sorption of ⁶³Ni(Ⅱ) at high pH is mainly dominated by inner-sphere surface complexation. The presence of humic acid enhances ⁶³Ni(Ⅱ) sorption to HA γ-Al₂O₃ hybrids at low pH values, but reduces ⁶³Ni(Ⅱ) sorption to HA γ-Al₂O₃ hybrids at high pH values.
- γ-Al₂O₃ /
- sorption /
- ⁶³Ni(Ⅱ) /
- humic acid

HTML全文

参考文献(18)

[1]	王东升,杨晓芳,孙中溪.铝氧化物2 水界面化学及其在水处理中的应用[J].环境科学学报,2007,27(3):353-362.
[2]	Umdu E S, Tuncer M, Seker E. Transesterification of Nannochloropsis Oculata Microalga’s Lipid to Biodiesel on Al₂O₃ Supported CaO and MgO Catalysts[J]. Bioresour Technol, 2009, 100: 2 828-2 831.
[3]	Sabari G V, Sarathi R, Chakravarthy S R, et al. Studies on Production and Characterization of Nano Al₂O₃ Powder Using Wire Explosion Technique[J]. Mater Lett, 2004, 58: 1 047-1 050.
[4]	Tan X L, Hu J, Zhou X, et al. Characterization of Lin’an Montmorillonite and Its Application in the Removal of Ni²⁺ From Aqueous Solutions[J]. Radiochim Acta, 2008, 96: 487-495.
[5]	徐君政,范桥辉,白洪斌,等.离子强度、温度、pH和腐殖酸浓度对Th(Ⅳ)在凹凸棒石上吸附的影响[J].核化学与放射化学,2009,31(3):179-185.
[6]	刘昇平,范桥辉,潘多强,等.离子强度、pH和HA[CM（70mm]对Eu(Ⅲ)在北山除碳酸盐土壤上吸附的影响[J].核化学与放射化学,2012,34(1):46-50.
[7]	Zhang H, Yu X J, Chen L, et al. Investigation of Radionuclide ⁶³Ni(Ⅱ) Sorption on ZSM-5 Zeolite[J]. J Radioanal Nucl Chem, 2010, 286: 249-258.
[8]	Scheidegger A M, Strawn D G, Lamble G M. The Kinetics of Mixed Ni-Al Hydroxide Formation on Clay and Aluminum Oxide Minerals: A Time-Resolved XAFS Study[J]. Geochim Cosmochim Acta, 1988, 62(13): 2 233-2 245.
[9]	Safdar M, Mustafa S, Naeem A. Effect of Sorption on Co(Ⅱ), Cu(Ⅱ), Ni(Ⅱ) and Zn(Ⅱ) Ions Precipitation[J]. Desalination, 2011, 266(1-3): 171-174.
[10]	Bradbury M H, Baeyens B. Sorption Modelling on Illite Part I: Titration Measurements and the Sorption of Ni, Co, Eu and Sn[J]. Geochim Cosmochim Acta, 2009, 73(4): 990-1003.
[11]	Guo Z Q, Zhao D L, Li Y, et al. Solution Chemistry Effects on Sorption Behavior of ¹⁰⁹Cd(Ⅱ) on Ca-Montmorillonite[J]. J Radioanal Nucl Chem, 2011, 288: 829-837.
[12]	Zhao D L, Feng S J, Chen C L, et al. Adsorption of Thorium(Ⅳ) on MX-80 Bentonite: Effect of pH, Ionic Strength and Temperature[J]. Appl Clay Sci, 2008, 41: 17-23.
[13]	Yang X, Yang S B, Yang S T, et al. Effect of pH, Ionic Strength and Temperature on Sorption of Pb(Ⅱ) on NKF-6 Zeolite Studied by Batch Technique[J]. Chem Eng J, 2011, 168: 86-93.
[14]	Fan Q H, Shao D D, Hu J, et al. Comparison of Ni²⁺ Sorption to Bare and ACT-Graft Attapulgites: Effect of pH, Temperature and Foreign Ions[J]. Surf Sci, 2008, 602: 778-785.
[15]	Yang K, Xing B. Adsorption of Fulvic Acid by Carbon Nanotubes From Water[J]. Environ Pollut, 2009, 157: 1 095-1 100.
[16]	Tan X L, Wang X K, Geckeis H, et al. Sorption of Eu(Ⅲ) on Humic Acid or Fulvic Acid Bound to Alumina Studied by SEM-EDS, XPS, TRLFS and Batch Techniques[J]. Environ Sci Technol, 2008, 42: 6 532-6 537.
[17]	王祥科，郑善良.荧光衰减光谱法研究Eu(Ⅱ)在氧化铝表面的化学形态[J].核化学与放射化学,2005,27(2):108-122.
[18]	Tan X L, Fang M, Chen C L, et al. Counterion Effects of Nickel and Sodium Dodecylbenzene Sulfonate Adsorption to Multiwalled Carbon Nanotubes in Aqueous Solution[J]. Carbon, 2008, 46: 1 741-1 750.

施引文献

资源附件(0)

计量

文章访问数: 419
HTML全文浏览量: 0
PDF下载量: 2070
被引次数: 0

离子强度、pH和腐殖酸浓度对63Ni(Ⅱ)在γ-Al2O3上吸附的影响

计量

出版历程

Effect of Ionic Strength, Temperature and Humic Substances Concentration on the Sorption of 63Ni(Ⅱ) toγ-Al2O3

计量

出版历程

目录

离子强度、pH和腐殖酸浓度对⁶³Ni(Ⅱ)在γ-Al₂O₃上吸附的影响

Effect of Ionic Strength, Temperature and Humic Substances Concentration on the Sorption of ⁶³Ni(Ⅱ) toγ-Al₂O₃