采用离子交换法制备了十二烷基苯磺酸根(DBS-)和柠檬酸根(Cit3-)复合改性层状双氢氧化物(LDHs),简写为DBS-Cit-LDHs.利用粉末X射线衍射分析、红外光谱分析、比表面积测定以及元素分析等技术手段对样品进行了表征.结果表明,DBS-和Cit3-已柱撑进入LDHs层间.研究了DBS-Cit-LDHs对水中重金属离子Cu2和有机污染物双酚A(BPA)的协同吸附性能.吸附实验结果表明,DBS-Cit-LDHs能同时高效去除Cu2和BPA:对Cu2的强吸附能力缘于DBS-Cit-LDHs层间Cit3-与Cu2+形成了稳定配合物;对BPA的强吸附能力缘于分配作用,且吸附能力与样品比表面积无关.DBS-Cit-LDHs对Cu2的吸附动力学和热力学分别符合准二级动力学方程和Freundlich等温式;对BPA的吸附分别符合准一级动力学方程和Linear等温式.二者吸附过程的ΔG0和ΔH0均为负值,表明吸附为自发放热过程.
参考文献
| [1] | Fu, Fenglian;Wang, Qi.Removal of heavy metal ions from wastewaters: A review[J].Journal of Environmental Management,20113(3):407-418. |
| [2] | Maria Luisa Soto;Andres Moure;Herminia Dominguez;Juan Carlos Parajo.Recovery, concentration and purification of phenolic compounds by adsorption:A review[J].Journal of food engineering,20111(1):1-27. |
| [3] | 夏燕;朱润良;陶奇;刘汉阳.阴离子表面活性剂改性水滑石吸附硝基苯的特性研究[J].环境科学,2013(1):226-230. |
| [4] | 李燕;施利文;刘志山;杨国庆.邻甲酚在类水滑石、焙烧及改性类水滑石上的吸附[J].化学学报,2012(6):683-690. |
| [5] | Cristina-Veronica Gherasim;Petr Mikulasek.Influence of operating variables on the removal of heavy metal ions from aqueous solutions by nanofiltration[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2014:67-74. |
| [6] | Xiao Qu;Min Tian;Baoqiang Liao;Aicheng Chen.Enhanced electrochemical treatment of phenolic pollutants by an effective adsorption and release process[J].Electrochimica Acta,201019(19):5367-5374. |
| [7] | Du LC;Qu BJ.Structural characterization and thermal oxidation properties of LLDPE/MgAl-LDH nanocomposites[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,200616(16):1549-1554. |
| [8] | Gang Hu;Nan Wang;Dermot O'Hare.Synthesis of magnesium aluminium layered double hydroxides in reverse microemulsions[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,200721(21):2257-2266. |
| [9] | I. Pavlovic;M.R. Perez;C. Barriga;M.A. Ulibarri.Adsorption Of Cu~(2+), Cd~(2+) And Pb~(2+) Ions By Layered Double Hydroxides Intercalated With The Chelating Agents Diethylenetriaminepentaacetate And Meso-2,3-dimercaptosuccinate[J].Applied clay science,20091(1):125-129. |
| [10] | M.R. Perez;I. Pavlovic;C. Barriga;J. Cornejo;M.C. Hermosin;M.A. Ulibarri.Uptake of Cu~(2+), Cd~(2+) and Pb~(2+) on Zn-Al layered double hydroxide intercalated with edta[J].Applied clay science,20063/4(3/4):245-251. |
| [11] | Tomohito Kameda;Hidenori Takeuchi;Toshiaki Yoshioka.Uptake of heavy metal ions from aqueous solution using Mg-Al layered double hydroxides intercalated with citrate, malate, and tartrate[J].Separation and Purification Technology,20082(2):330-336. |
| [12] | You YW.;Zhao HT.;Vance GF..Surfactant-enhanced adsorption of organic compounds by layered double hydroxides[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20023(3):161-172. |
| [13] | Klumpp E.;Contreras-Ortega C.;Klahre P.;Tino FJ.;Yapar S.;Portillo C. Stegen S.;Queirolo F.;Schwuger MJ..Sorption of 2,4-dichlorophenol on modified hydrotalcites[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20031/3(1/3):111-116. |
| [14] | T. Kameda;M. Saito;Y. Umetsu.Preparation of a composite material for the uptake of bisphenol A from aqueous solutions, the dodecylsulfate ion-intercalated Mg-Al layer-structured double hydroxide particles[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,20051/2(1/2):46-52. |
| [15] | Qiu, DP;Hou, WG.Synthesis and characterization of indole-3-butyric acid/hydrotalcite-like compound nanohybrids[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20091/3(1/3):12-17. |
| [16] | M. A. Ulibarri;I. Pavlovic;C. Barriga.Adsorption of anionic species on hydrotalcite-like compounds: effect of interlayer anion and crystallinity[J].Applied clay science,20011/2(1/2):17-27. |
| [17] | 张杰;李殿卿;任玲玲;Evans D G;段雪.新原料路线共沉淀法组装超分子结构柠檬酸根插层水滑石[J].无机化学学报,2004(10):1208-1212. |
| [18] | 李燕;臧运波;李龙龙.有机-类水滑石对Cu（Ⅱ）和对甲酚复合污染的吸附[J].环境化学,2013(12):2290-2296. |
| [19] | Oemer Yavuz;Yalcin Altunkaynak;Fuat Guezel.Removal of copper, nickel, cobalt and manganese from aqueous solution by kaolinite[J].Water research: A journal of the international water association,20034(4):948-952. |
| [20] | Yan-Hui Li;Jun Ding;Zhaokun Luan;Zechao Di;Yuefeng Zhu;Cailu Xu;Dehai Wu;Bingqing Wei.Competitive adsorption of Pb~(2+),Cu~(2+) and Cd~(2+) ions from aqueous solutions by multiwalled carbon nanotubes[J].Carbon: An International Journal Sponsored by the American Carbon Society,200314(14):2787-2792. |
| [21] | Yan Li;Hao-Yu Bi;Shuang-Long Shen.Removal of bisphenol A from aqueous solution by a dodecylsufate ion-intercalated hydrotalcite-like compound[J].Environmental technology,201210/12(10/12):1367-1373. |
| [22] | Zhiyue Gao;Bing Du;Guoyan Zhang.Adsorption of Pentachlorophenol from Aqueous Solution on Dodecylbenzenesulfonate Modified Nickel-Titanium Layered Double Hydroxide Nanocomposites[J].Industrial & Engineering Chemistry Research,20119(9):5334-5345. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%