金属有机框架材料HKUST-1吸附水中砷(V)的研究
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摘要
以均苯三甲酸为配体,与金属离子Cu~(2+)自组装得到稳定的金属有机框架材料(HKUST-1),利用该材料吸附水体中的砷(V),并借助原子荧光光度计进行检测。结果表明,在pH=11、振荡时间为180 min时,其最大吸附量Q_e=88. 6 mg/g,经后期拟合,该反应符合拟二级动力学和Langmuir等温吸附模型。该研究成果在一定基础上拓宽了金属有机框架材料的应用。
Stabilized metal organic framework material( HKUST-1) is obtained by self-assembly of metal ion Cu~(2+) with trimesic acid as ligand.Arsenic (V) in water is absorbed by this material,which is detected by atomic fluorescence spectrometer.The results show that the maximum adsorption amount of arsenic is 88. 6 mg·g~(-1) when pH = 11 and time is 180 min. After fitting,it is found that the reaction accords with pseudo-secondary kinetics and Langmuir isotherm adsorption model.This research progress broadens the application range of metal organic framework materials on a certain basis.
Stabilized metal organic framework material( HKUST-1) is obtained by self-assembly of metal ion Cu~(2+) with trimesic acid as ligand.Arsenic (V) in water is absorbed by this material,which is detected by atomic fluorescence spectrometer.The results show that the maximum adsorption amount of arsenic is 88. 6 mg·g~(-1) when pH = 11 and time is 180 min. After fitting,it is found that the reaction accords with pseudo-secondary kinetics and Langmuir isotherm adsorption model.This research progress broadens the application range of metal organic framework materials on a certain basis.
引文
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[2]马文静,阎莉,张建锋.二氧化钛对地下水中砷硅的吸附及再生回用[J].环境科学,2018,39(3):1241-1247.
[3]Azimi A,Azari A,Rezakazemi M,et al.Removal of heavy metals from industrial wastewaters:A review[J].Chembioeng Reviews,2017,4(1):37-59.
[4]Xu F,Hu J,Zhang J,et al.Nanomaterials in speciation analysis of mercury,arsenic,selenium,and chromium by analytical atomic/molecular spectrometry[J].Applied Spectroscopy Reviews,2017,(2):00-00.
[5]Meng F,Yang B,Wang B,et al.Novel dendrimer-like magnetic biosorbent based on modified orange peel waste:Adsorption-reduction behavior of arsenic[J].Acs Sustainable Chemistry&Engineering,2017,5(11).
[6]李聪,钟溢健,解庆林,等.不同吸附材料处理水中砷的效应分析[J].现代化工,2018,38(7):21-25.
[7]李昱秀,张焕祯,李海燕.负载铁氧化物吸附剂水处理除砷研究进展[J].水处理技术,2017,43(7):5-11.
[8]屈建国,周宁玉,谢朝新,等.改性活性炭除砷研究进展[J].当代化工,2017,46(7):1458-1461.
[9]Yao S H,Ma X C,Wang B Y,et al.Adsorption removal of arsenic from aqueous solutions by chemically modified wheat bran[J].Journal of Shen Yang University of Chemical Technology,2018,32(2):97-105.
[10]曾辉平,尹灿,李冬,等.基于铁锰泥的除砷吸附剂性能比较及吸附机理[J].中国环境科学,2018,38(9):3373-3379.
[11]赵纪舒,赵寅捷,耿丽平,等.芦根表面铁氧化物对水体中五价砷吸附性能的研究[J].中国农学通报,2017,33(5):66-71.
[12]梁美娜,王敦球,朱义年,等.羟基磷灰石/蔗渣炭复合吸附剂的制备及其对As(Ⅴ)的吸附机理[J].环境科学研究,2017,30(4):607-614.
[13]朱瑾.铁锰氧化物/石墨烯复合材料对水中砷的吸附性能及机理研究[D].杭州:浙江大学,2016.
[14]张涛,梁美娜,王敦球,等.蔗渣炭-镁铁双金属氧化物吸附剂对水中As(V)的吸附研究[J].水处理技术,2018,40(8):896-901.
[15]梁美娜,王敦球,朱义年,等.蔗渣炭/氧化铁复合吸附剂的制备及其吸附As(V)的机理[J].桂林理工大学学报,2016,36(4):754-764.
[16]高迪,王艳玲,张扬.MOFs处理水中重金属污染的研究进展[J].辽宁化工,2017,46(2):177-179.
[17]周维娜.金属有机框架材料吸附痕量Hg2+研究[D].上海:东华理工大学,2015.
[18]马小亮,李杰,李风亭.类沸石金属有机框架材料吸附去除饮用水中微量砷的研究[J].绿色科技,2018,(2):25-27.
[19]姜姝伊.噻吩羧酸类金属-有机框架材料的设计合成及其汞离子吸附性能研究[D].长春:东北师范大学,2018.
[20]Xu Z P,Stevenson G,Lu C Q,et al.Dispersion and size control of layered double hydroxide nanoparticles in aqueous solutions[J].Journal of Physical Chemistry B,2006,110(34):16923-16929.
[21]韩素英,韩新华,曹运祥,等.金属有机框架材料HKUST-1吸附分离CH4/N2性能研究[J].石油炼制与化工,2018,49(5):43-48.