高级搜索

改性凹凸棒土负载纳米铁的制备及性能

,  ,  , 

downloadPDF

上一篇

下一篇

关文贤, 王志红, 聂锦旭, 熊柳. 改性凹凸棒土负载纳米铁的制备及性能[J]. 环境工程学报, 2016, 10(12): 6940-6946. doi: 10.12030/j.cjee.201508070
引用本文: 关文贤, 王志红, 聂锦旭, 熊柳. 改性凹凸棒土负载纳米铁的制备及性能[J]. 环境工程学报, 2016, 10(12): 6940-6946. doi: 10.12030/j.cjee.201508070
shu
GUAN Wenxian, WANG Zhihong, NIE Jinxu, XIONG Liu. Preparation and properties of nanoscale zero valent iron supported on modified attapulgite[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6940-6946. doi: 10.12030/j.cjee.201508070
Citation: GUAN Wenxian, WANG Zhihong, NIE Jinxu, XIONG Liu. Preparation and properties of nanoscale zero valent iron supported on modified attapulgite[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6940-6946. doi: 10.12030/j.cjee.201508070
shu

改性凹凸棒土负载纳米铁的制备及性能

  • 1.

    广东工业大学土木与交通工程学院, 广州 510006

  • 基金项目:

    国家自然科学基金资助项目（51308131）

  • 中图分类号: X703

Preparation and properties of nanoscale zero valent iron supported on modified attapulgite

  • 1.

    School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China

  • Fund Project:

  • 摘要: 以200目的天然凹凸棒土为原料，先对原土进行酸活化与微波改性，再以改性凹凸棒土为载体，采用液相还原法由FeCl3·6H2O和NaBH4制备改性凹凸棒土负载纳米铁。通过正交实验、扫描电镜（SEM）、能谱仪（EDS）及红外光谱（IR）对负载前后的凹凸棒土进行表征分析确定其最佳条件。并通过稳定性实验和去除实验对改性凹凸棒土负载纳米铁的性能分析。结果表明：改性凹凸棒土负载纳米铁的最佳条件是铁土比为2.5：1，酸浓度为3 mol·L-1，微波时间为6 min，微波功率为600 W，改性时间为24 h。改性凹凸棒土负载纳米铁在常规水处理环境中能稳定存在。对水中的Cr（Ⅵ）有良好的去除效果，去除率可达97.67%。
    Abstract: Acid treatment and microwave modification were used to modify 200 mesh natural attapulgite, which was used as a raw material. Then, with the modified attapulgite as a support and under the influence of FeCl3·6H2O and NaBH4, a liquid-phase reduction method was used to prepare nanoscale zero-valent iron-supported modified attapulgite. The nanoscale zero-valent iron-supported modified attapulgite was characterized via orthogonal experiments, scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and infrared spectroscopy (IR) to find the best preparation conditions. Its properties were analyzed through stability tests and removal experiments. The results showed that the best preparation conditions were an iron-to-soil ratio of 2.5:1, acid concentration of 3 mol·L-1, microwave time of 6 min, microwave power of 600 W, and reaction time of 24 h. The nanoscale zero-valent iron-supported modified attapulgite showed good stability in conventional water treatment and good ability to remove Cr(VI) from water with a removal rate of up to 97.67%.
  • 加载中
  • [1] 王永康, 王立. 纳米材料科学与技术. 杭州:浙江大学出版社, 2002
    [2] 刘吉平, 郝向阳. 纳米科学与技术. 北京:科学出版社, 2002
    [3] 刘筱薇, 仵海东. 纳米金属材料研究进展. 热加工工艺, 2001(3):55-58 LIU Xiaowei, WU Haidong. Research advancement of nano metallic materials.Hot Working Technology,2001(3):55-58(in Chinese)
    [4] ZHANG Weixian. Nanoscale iron particles for environmental remediation:An overview. Journal of Nanoparticle Research, 2003, 5(3/4):323-332
    [5] 欧阳鸿武, 孟小杰, 黄誓成. 纳米铁及氧化铁粉制备技术的进展. 粉末冶金材料科学与工程, 2008, 13(6):315-322 HUANG Shicheng. Technological prigresses of fabricating nana-iron and nano-iron oxide powders.Materials Science and Engineering of Powder Metallurgy,2008,13(6):315-322(in Chinese)
    [6] 董婷婷, 罗汉金, 吴锦华. 纳米零价铁的制备及其去除水中对氯硝基苯的研究. 环境工程学报, 2010, 4(6):1257-1261 DONG Tingting, LUO Hanjin, WU Jinhua. Preparation of nanoscale zero-valent iron particles and its application in pnitrochlorobenzene degradation in waste water.Chinese Journal of Environmental Engineering,2010,4(6):1257-1261(in Chinese)
    [7] 李铁龙. 纳米铁及铁钯复合材料的制备与修复地下水基础研究. 天津:南开大学博士学位论文, 2006 LI Tielong. Preparation of nanoscale iron and palladiumized iron particles and their application in groundwater remediation.Tianjin:Doctor Dissertation of Nankai University,2006(in Chinese)
    [8] 陈芳艳, 陆敏. 唐玉斌. 纳米铁在水污染控制中的应用研究进展. 工业安全与环保, 2007, 33(2):18-20 CHEN Fangyan, LU Min, TANG Yubin. Research on the applicetion of nanor scale iron in water pollution control. Industrial Safety and Environmental Protection,2007,33(2):18-20(in Chinese)
    [9] HANSEL C. M., WIELINGA B. W., FENDORF S. Structural and compositional evolution of Cr/Fe solids after indirect chromate reduction by dissimilatory iron-reducing bacteria. Geochimica et Cosmochimica Acta, 2003, 67(3):401-412
    [10] GIASUDDIN A. B. M., KANEL S. R., CHOI H. Adsorption of humic acid onto nanoscale zerovalent iron and its effect on arsenic removal. Environmental Science & Technology, 2007, 41(6):2022-2027
    [11] 苏锦, 陈祖亮. 纳米铁技术在环境修复中应用的研究进展. 能源与环境, 2014(1):17-19
    [12] 高树梅, 张跃进, 陈云云, 等. 水处理应用中纳米铁颗粒的制备方法综述. 嘉庆学院学报, 2011, 23(3):76-79 GAO Shumei,ZHANG Yuejin,CHEN Yunyun,et al.Progress on preparation of Nano-iron particles used in wastewater treatment.Journal of Jiaxing University,2011,23(3):76-79(in Chinese)
    [13] MURRAY H. H. Traditional and new applications for kaolin, smectite, and palygorskite:A general overview. Applied Clay Science, 2000, 17(5/6):207-221
    [14] GALAN E. Properties and applications of palygorskite-sepiolite clays. Clay Minerals, 1996, 31(4):443-453
    [15] 刘凯. 有机蒙脱石负载纳米铁的制备、表征及去除4-氯酚的研究. 长沙:湖南大学硕士学位论文, 2012 LIU Kai. The preparation and characterization of nanoscale zero-valent iron supported on organomontmorillonite for removal of 4-Chlorophenol. Changsha:Master Dissertation of Hunan University,2012(in Chinese)
    [16] 凌慧诗. 改性凹土的制备及对微污染水源腐殖酸的去除研究. 广州:广东工业大学硕士学位论文, 2015 LING Huishi. Study on preparetion of modified attapulgite and treatment of humic acid in microio-polluted water.Guangdong:Master Dissertation of Guangdong University of Technology,2015(in Chinese)
    [17] 何晓梅, 王志红, 聂金旭, 等. 热处理与表面活性剂联合改性凹凸棒土的制备. 材料导报, 2014, 28(4):79-82 HE Xiaomei,WANG Zhihong,NIE Jinxu,et al. Preparation of attapulgite modified by heat treatment and surfactant.Materials Review, 2014,28(4):79-82(in Chinese)
    [18] 王宁, 沈珍秒, 施惠芳, 等. Fe3O4/纳米级Fe0去除水中Cr(VI)的研究. 科学技术与工程, 2013, 13(13):3681-3685
    [19] 冯婧微. 纳米零价铁及铁(氢)氧化物去除水中Cr(Ⅵ)和Cu2+的机制研究. 沈阳:沈阳农业大学博士学位论文, 2012 FENG Jingwei. Mechanisms of chromium and copper removal with nanoscale zero-valent iron and iron oxides/hydroxides.Shenyang:Doctor Dissertation of Shenyang Agriculture University, 2012(in Chinese)
    [20] 刘永. 零价铁还原去除污染水体中的六价铬. 杭州:浙江大学硕士学位论文, 2006 LIU Yong. Removal of hexvalent chromium by iron nanoparticles. Hangzhou:Master Dissertation of Zhejiang University,2006(in Chinese)
    [21] ALTUNDOGAN H. S. Cr(VI) removal from aqueous solution by iron (Ⅲ) hydroxide-loaded sugar beet pulp. Process Biochemistry, 2005, 40(3/4):1443-1452
    [22] CHANG Liyang. Chromate reduction in wastewater at different pH levels using thin iron wires:A laboratory study. Environmental Progress, 2005, 24(3):305-316
    [23] MUKHOPADHYAY B., SUNDQUIST J., SCHMITZ R. J. Removal of Cr(VI) from Cr-contaminated groundwater through electrochemical addition of Fe(Ⅱ). Journal of Environmental Management, 2007, 82(1):66-76
    [24] YANG J. E., KIM J. S., OK Y. S., et al. Mechanistic evidence and efficiency of the Cr(VI) reduction in water by different sources of zerovalent irons. Water Science and Technology, 2007, 55(1/2):197-202
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1570
  • HTML全文浏览数:  1294
  • PDF下载数:  374
  • 施引文献:  0
出版历程
  • 收稿日期:  2015-11-21
  • 刊出日期:  2016-12-08
关文贤, 王志红, 聂锦旭, 熊柳. 改性凹凸棒土负载纳米铁的制备及性能[J]. 环境工程学报, 2016, 10(12): 6940-6946. doi: 10.12030/j.cjee.201508070
引用本文: 关文贤, 王志红, 聂锦旭, 熊柳. 改性凹凸棒土负载纳米铁的制备及性能[J]. 环境工程学报, 2016, 10(12): 6940-6946. doi: 10.12030/j.cjee.201508070
shu
GUAN Wenxian, WANG Zhihong, NIE Jinxu, XIONG Liu. Preparation and properties of nanoscale zero valent iron supported on modified attapulgite[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6940-6946. doi: 10.12030/j.cjee.201508070
Citation: GUAN Wenxian, WANG Zhihong, NIE Jinxu, XIONG Liu. Preparation and properties of nanoscale zero valent iron supported on modified attapulgite[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6940-6946. doi: 10.12030/j.cjee.201508070
shu

改性凹凸棒土负载纳米铁的制备及性能

  • 1. 广东工业大学土木与交通工程学院, 广州 510006
  • 收稿日期:  2015-11-21
基金项目:

国家自然科学基金资助项目（51308131）

摘要: 以200目的天然凹凸棒土为原料，先对原土进行酸活化与微波改性，再以改性凹凸棒土为载体，采用液相还原法由FeCl3·6H2O和NaBH4制备改性凹凸棒土负载纳米铁。通过正交实验、扫描电镜（SEM）、能谱仪（EDS）及红外光谱（IR）对负载前后的凹凸棒土进行表征分析确定其最佳条件。并通过稳定性实验和去除实验对改性凹凸棒土负载纳米铁的性能分析。结果表明：改性凹凸棒土负载纳米铁的最佳条件是铁土比为2.5：1，酸浓度为3 mol·L-1，微波时间为6 min，微波功率为600 W，改性时间为24 h。改性凹凸棒土负载纳米铁在常规水处理环境中能稳定存在。对水中的Cr（Ⅵ）有良好的去除效果，去除率可达97.67%。

English Abstract

    全文HTML

参考文献 (24)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心