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柠檬酸改性核桃壳粉负载纳米零价铁的制备及EDTA优化去除四环素

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张彬彬, 王向宇. 柠檬酸改性核桃壳粉负载纳米零价铁的制备及EDTA优化去除四环素[J]. 环境工程学报, 2018, 12(12): 3316-3323. doi: 10.12030/j.cjee.201806099
引用本文: 张彬彬, 王向宇. 柠檬酸改性核桃壳粉负载纳米零价铁的制备及EDTA优化去除四环素[J]. 环境工程学报, 2018, 12(12): 3316-3323. doi: 10.12030/j.cjee.201806099
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ZHANG Binbin, WANG Xiangyu. Immobization of nanozero-valent iron with citric acid modified walnut shell powder and EDTA optimization for tetracycline removal[J]. Chinese Journal of Environmental Engineering, 2018, 12(12): 3316-3323. doi: 10.12030/j.cjee.201806099
Citation: ZHANG Binbin, WANG Xiangyu. Immobization of nanozero-valent iron with citric acid modified walnut shell powder and EDTA optimization for tetracycline removal[J]. Chinese Journal of Environmental Engineering, 2018, 12(12): 3316-3323. doi: 10.12030/j.cjee.201806099
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柠檬酸改性核桃壳粉负载纳米零价铁的制备及EDTA优化去除四环素

  • 1.

    昆明理工大学环境科学与工程学院，昆明 650500

  • 基金项目:

    国家自然科学基金资助项目 (51368025)

Immobization of nanozero-valent iron with citric acid modified walnut shell powder and EDTA optimization for tetracycline removal

  • 1.

    School of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China

  • Fund Project:

  • 摘要: 为解决纳米零价铁（NZVI）因团聚而导致的反应活性降低问题，通过液相还原法合成新型柠檬酸改性核桃壳粉负载纳米零价铁（CA-WNS-NZVI）的复合材料，添加EDTA条件下对四环素（TC）进行去除研究。柠檬酸改性可以增加核桃壳粉表面的羧基基团，有助于提高NZVI的负载量和分散性；在反应体系中存在EDTA的情况下，CA-WNS-NZVI对TC去除率达到99.02%，而在无EDTA条件下，TC去除率仅为82.10%。系统地研究了TC初始浓度、pH、温度和EDTA浓度对TC去除效果的影响。CA-WNS-NZVI的SEM表征揭示了NZVI均匀地分布在CA-WNS-NZVI上。CA-WNS-NZVI复合材料的XRD和FT-IR谱图表明NZVI成功地负载在核桃壳表面。同时讨论了EDTA优化CA-WNS-NZVI复合材料对TC去除的反应机制。新型CA-WNS-NZVI复合材料有望为抗生素废水治理提供新思路和新技术方法。
    Abstract: In order to solve the problems of the reaction activity reduction caused by aggregation of nanoscale zero-valent iron (NZVI), a novelly-designed composite of citric acid modifying walnut shell powder loaded with NZVI (CA-WNS-NZVI) was developed through liquid phase reducing method, it was used to remove tetracycline(TC) in the presence of EDTA. The modification of walnut shell powder with citric acid can increase the carboxyl content, which was beneficial to NZVI loading content and dispersity. The results show that the TC removal rate could reach 99.02% by CA-WNS-NZVI in the presence of EDTA, while reach 82.10% in the absence of EDTA. Batch experiments were conducted to systematically study the effects of TC initial concentration, pH value, temperature and EDTA concentration on TC removal efficiency. The SEM analysis reveals that NZVI was uniformly dispersed on CA-WNS-NZVI surface. XRD patterns and FT-IR spectra of CA-WNS-NZVI demonstrate that NZVI was successfully loaded on the surface of walnut shell powder. The reaction mechanism for TC removal was studied with CA-WNS-NZVI composites under EDTA optimization. Overall, our results indicated that CA-WNS-NZVI might be a promising functional material for TC wastewater remediation.
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  • [1] FU Y, PENG L, ZENG Q, et al.High efficient removal of tetracycline from solution by degradation and flocculation with nanoscale zerovalent iron[J].Chemical Engineering Journal,2015,270:631-640 10.1016/j.cej.2015.02.070
    [2] 黄永兰. 抗生素废水处理技术研究的现状和发展[J]. 广州化工,2013,41(16):56-57
    [3] HUANG Y, ZHANG W, ZHANG M, et al.Hydroxyl-functionalized TiO2@SiO2@Ni/nZVI nanocomposites fabrication, characterizationand enhanced simultaneous visible light photocatalytic oxidation and adsorption of arsenite[J].Chemical Engineering Journal,2018,338(15):369-382 10.1016/j.cej.2018.01.019
    [4] 王棣, 魏文侠, 王琳玲, 等. 纳米铁原位注入技术对六价铬污染地下水的修复[J]. 环境工程学报,2018,12(2):521-526 10.12030/j.cjee.201706140
    [5] 谢青青, 姚楠. 纳米零价铁的制备及应用研究进展[J]. 化工进展,2017,36(6):2208-2214
    [6] 陈静, 陈海, 金歆, 等. 纳米零价铁降解水中四氯化碳的试验研究[J]. 环境科学学报,2017,37(2):610-616 10.13671/j.hjkxxb.2016.0311
    [7] DIAO Z H, XU X R, JIANG D, et al.Bentonite-supported nanoscale zero-valent iron/persulfate system for the simultaneous removal of Cr(VI) and phenol from aqueous solutions[J].Chemical Engineering Journal,2016,302(238):213-222 10.1016/j.cej.2016.05.062
    [8] 何娴. 羧甲基纤维素稳定纳米零价铁修复水中Cr(Ⅵ) 和TCE 研究[D]. 北京: 中国地质大学(北京),2014
    [9] ALTUN T, PEHLIVAN E.Removal of Cr(VI) from aqueous solutions by modified walnut shells[J].Food Chemistry,2012,132(2):693-700 10.1016/j.foodchem.2011.10.099
    [10] MU Y, JIA F, AI Z, et al.Iron oxide shell mediated environmental remediation properties of nano zero-valent iron[J].Environmental Science Nano,2017,4(1):27-45 10.1039/C6EN00398B
    [11] LIU T, WANG Z L, ZHAO L, et al.Enhanced chitosan/Fe0-nanoparticles beads for hexavalent chromium removal from wastewater[J].Chemical Engineering Journal,2012,189-190:196-202 10.1016/j.cej.2012.02.056
    [12] WANG X Y, DU Y, MA J.Novel synthesis of carbon spheres supported nanoscale zero-valent iron for removal of metronidazole[J].Applied Surface Science,2016,390:50-59 10.1016/j.apsusc.2016.08.027
    [13] KUANG Y, WANG Q P, CHEN Z L, et al.Heterogeneous Fenton-like oxidation of monochlorobenzene using green synthesis of iron nanoparticles[J].Journal of Colloid & Interface Science,2013,410(22):67-73. 10.1016/j.jcis.2013.08.020
    [14] YANG F C, HE Y Y, SUN S Q, et al.Walnut shell supported nanoscale Fe0 for the removal of Cu(II) and Ni(II) ions from water[J].Journal of Applied Polymer Science,2016,133(16):43304-43311 10.1002/app.43304
    [15] ASHRAFI M, ARAB CHAMJANGALI M, BAGHERIAN G, et al.Application of linear and non-linear methods for modeling removal efficiency of textile dyes from aqueous solutions using magnetic Fe3O4 impregnated onto walnut shell [J].Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy,2017,171:268-279 10.1016/j.saa.2016.07.049
    [16] BAIKOUSI M, GEORGIOU Y, DAIKOPOULOS C, et al.Synthesis and characterization of robust zero valent iron/mesoporous carbon composites and their applications in arsenic removal[J].Carbon,2015,93:636-647 10.1016/j.carbon.2015.05.081
    [17] SU H, FANG Z, TSANF E, et al.Stabilisation of nanoscale zero-valent iron with biochar for enhanced transport and in-situ remediation of hexavalent chromium in soil[J].Environmental Pollution,2016,214:94-100 10.1016/j.envpol.2016.03.072
    [18] XIA S Q, GU Z L, ZHANG Z Q, et al.Removal of chloramphenicol from aqueous solution by nanoscale zero-valent iron particles[J].Chemical Engineering Journal,2014,257(6):98-104 10.1016/j.cej.2014.06.106
    [19] CHEN D, GAO B, WANG H Y, et al.Effective removal of high concentration of phosphate by starch-stabilized nanoscale zerovalent iron (SNZVI)[J].Journal of the Taiwan Institute of Chemical Engineers,2016,61:181-187 10.1016/j.jtice.2015.12.007
    [20] WANG X Y, WANG P, MA J, et al.Synthesis, characterization, and reactivity of cellulose modified nano zero-valent iron for dye discoloration[J].Applied Surface Science,2015,345:57-66 10.1016/j.apsusc.2015.03.131
    [21] LUNA M, GASTONE F, TOSCO T, et al.Pressure-controlled injection of guar gum stabilized microscale zerovalent iron for groundwater remediation[J].Journal of Contaminant Hydrology,2015,181:46-58 10.1016/j.jconhyd.2015.04.007
    [22] DONG H, ZHAO F, HE Q, et al.Physicochemical transformation of carboxymethyl cellulose-coated zero-valent iron nanoparticles (nZVI) in simulated groundwater under anaerobic conditions[J].Separation & Purification Technology,2017,175:376-383 10.1016/j.seppur.2016.11.053
    [23] ZHANG D, YIN J, ZHAO J, et al.Adsorption and removal of tetracycline from water by petroleum coke-derived highly porous activated carbon[J].Journal of Environmental Chemical Engineering,2015,3(3):1504-1512 10.1016/j.jece.2015.05.014
    [24] 周红艺, 陈勇, 梁思, 等.EDTA 优化纳米Pd/Fe 对2,4-D 的催化脱氯研究[J]. 环境科学学报,2017,37(2):671-679 10.13671/j.hjkxxb.2016.0181
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  • 刊出日期:  2018-11-29

柠檬酸改性核桃壳粉负载纳米零价铁的制备及EDTA优化去除四环素

  • 1. 昆明理工大学环境科学与工程学院，昆明 650500
基金项目:

国家自然科学基金资助项目 (51368025)

摘要: 为解决纳米零价铁（NZVI）因团聚而导致的反应活性降低问题，通过液相还原法合成新型柠檬酸改性核桃壳粉负载纳米零价铁（CA-WNS-NZVI）的复合材料，添加EDTA条件下对四环素（TC）进行去除研究。柠檬酸改性可以增加核桃壳粉表面的羧基基团，有助于提高NZVI的负载量和分散性；在反应体系中存在EDTA的情况下，CA-WNS-NZVI对TC去除率达到99.02%，而在无EDTA条件下，TC去除率仅为82.10%。系统地研究了TC初始浓度、pH、温度和EDTA浓度对TC去除效果的影响。CA-WNS-NZVI的SEM表征揭示了NZVI均匀地分布在CA-WNS-NZVI上。CA-WNS-NZVI复合材料的XRD和FT-IR谱图表明NZVI成功地负载在核桃壳表面。同时讨论了EDTA优化CA-WNS-NZVI复合材料对TC去除的反应机制。新型CA-WNS-NZVI复合材料有望为抗生素废水治理提供新思路和新技术方法。

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