The adsorption performance of modified blast furnace slag onto Ce3+ was studied by using blast furnace slag modified by hydrochloric acid as adsorbent.The physicochemical properties of modified blast furnace slag were characterized by scanning electron microscopy and specific surface area and porosity analyzer.The adsorption mechanism of modified blast furnace slag on Ce3+ was discussed from the perspective of kinetics and thermodynamics.The results shown that: the saturated adsorption capacity of Ce3+ was 11.95mg/g in the case of Ce3+ concentration of 100mg/L,ambient temperature of 25℃,modified blast furnace slag dosage of 0.3g,adsorption time of 2 h,and pH value of 7.The adsorption behavior was consistent with the pseudo-second-order kinetic adsorption model and the Langmuir isotherm adsorption model.It was indicated that the adsorption of Ce3+ by modified blast furnace slag was monolayer chemical adsorption.
[1] 窦学宏.铈及其应用发展[J].稀土信息,2005(1):30-31.
[2] 田君,尹敬群,谌开红,等.风化壳淋积型稀土矿浸出液沉淀浮选溶液化学分析[J].稀土,2011,32(4):1-7.
[3] 常宏涛,季尚军,李梅,等.超声波作用下溶剂萃取法分离镧铈元素[J].化工进展,2014,33(1):169-186.
[4] 潘玲,陈利芳,申利国,等.聚合物辅助超滤技术处理含铈废水[J].膜科学与技术,2014,34(6):67-71.
[5] Piazza S D,Cecchi G,Cardinale A M,et al.Penicillium expansum Link strain for a biometallurgical method to recover REEs from WEEE[J].Waste Management,2017,60:596-600.
[6] Li X J,Yan C J,Luo W J,et al.Exceptional cerium(Ⅲ) adsorption performance of poly(acrylic acid) brushes-decorated attapulgite with abundant and highly accessible binding sites[J].Chemical Engineering Journal,2016,284:333-342.
[7] 邓金梅,罗序燕,祝婷,等.羧甲基壳聚糖对铈离子吸附性能研究[J].江西理工大学学报,2016,37(1):1-4.
[8] 张理元,陈奇,刘义武,等.果胶对稀土金属Ce4+的吸附研究(英文)[J].四川大学学报:自然科学版,2017,54(4):807-814.
[9] 苏伟,窦天军,潘社奇,等.沸石对溶液中铈离子的吸附性能[J].材料科学与工程学报,2011,29(4):592-595.
[10] Frolova L A,Pivovarov A A,Butyrina T E,et al.Purification of wastewaters,containing chromium,by a sorbent based on blast furnace slag[J].Journal of Water Chemistry & Technology,2015,37(4):185-190.
[11] 季凌晨,刘荣,王国祥,等.含钛高炉渣对水中氨氮的吸附特性[J].化学通报,2017,80(6):579-584.
[12] 沈俊菊,王丽娟,李海霞,等.改性高炉渣对染料的吸附动力学及热力学研究[J].环境工程学报,2014,8(7):2918-2924.
[13] 刘金亮,陈莉荣,王哲.高炉渣对Zn(Ⅱ)的吸附性能[J].环境工程学报,2015,9(10):5065-5070.
[14] 许睿,刘荣,王国祥,等.含钛高炉渣对水中总磷的吸附性能与机理[J].钢铁钒钛,2018,39(3):69-74.
[15] 陈凌,曾亚,张贤明,等.高炉渣与活性白土吸附废润滑油对比研究[J].应用化工,2017,46(5):916-918.
[16] Rawat S P S,Khali D P,Hale M D,et al.Studies on the moisture adsorption behaviour of brown rot decayed and undecayed wood blocks of pinus sylvestris using the Brunauer-Emmett-Teller Theory[J].Holzforschung-International Journal of the Biology,Chemistry,Physics and Technology of Wood,1998,52(5):463-466.
[17] Ho Y S,Mckay G.The sorption of lead(Ⅱ) ions on peat[J].Water Research,1999,33(2):578-584.
[18] Ho Y S,Mckay G.Pseudo-second order model for sorption processes[J].Process Biochemistry,1999,34(5):451-465.
[19] Peng L,Jiang L,Zhu L,et al.Novel covalently cross-linked attapulgite/poly(acrylic acid-co-acrylamide) hybrid hydrogels by inverse suspension polymerization:synthesis optimization and evaluation as adsorbents for toxic heavy metals[J].Industrial & Engineering Chemistry Research,2014,53(11):4277-4285.
[20] Langmuir I.The adsorption of gases on plane surfaces of glass,mica and platinum[J].Journal of Chemical Physics,2015,40(12):1361-1403.
[21] Levan M D,Vermeulen T.Binary langmuir and freundlich isotherms for ideal adsorbed solutions[J].Journal of Physical Chemistry,1981,85(22):3247-3250.
[22] Pan J,Zou X,Wang X,et al.Selective recognition of 2,4-dichlorophenol from aqueous solution by uniformly sized molecularly imprinted microspheres with β-cyclodextrin/attapulgite composites as support[J].Chemical Engineering Journal,2010,162(3):910-918.
[23] Soumitra G,Asish S,Mohammad R,et al.Enhanced removal of methylene blue and methyl violet dyes from aqueous solution using a nanocomposite of hydrolyzed polyacrylamide grafted xanthan gum and incorporated nanosilica[J].ACS Applied Materials & Interfaces,2014,6(7):4766.
基金资助
国家重点实验室开放基金(SKLASPP201601);江苏科技大学博士创新基金(120140008)
PDF
(2192KB)
