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凹凸棒石/纳米铁复合材料的制备工艺及对亚甲基蓝废水的处理

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贺广喜, 朱霞萍, 王虹, 赵平, 任维. 凹凸棒石/纳米铁复合材料的制备工艺及对亚甲基蓝废水的处理[J]. 矿产综合利用, 2024, 45(2): 8-15, 22. doi: 10.3969/j.issn.1000-6532.2024.02.002
引用本文: 贺广喜, 朱霞萍, 王虹, 赵平, 任维. 凹凸棒石/纳米铁复合材料的制备工艺及对亚甲基蓝废水的处理[J]. 矿产综合利用, 2024, 45(2): 8-15, 22. doi: 10.3969/j.issn.1000-6532.2024.02.002
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HE Guangxi, ZHU Xiaping, WANG Hong, ZHAO Ping, REN Wei. Preparation Process of Attapulgite/Nano Iron Composite and its Removal Application to Methylene Blue[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(2): 8-15, 22. doi: 10.3969/j.issn.1000-6532.2024.02.002
Citation: HE Guangxi, ZHU Xiaping, WANG Hong, ZHAO Ping, REN Wei. Preparation Process of Attapulgite/Nano Iron Composite and its Removal Application to Methylene Blue[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(2): 8-15, 22. doi: 10.3969/j.issn.1000-6532.2024.02.002
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凹凸棒石/纳米铁复合材料的制备工艺及对亚甲基蓝废水的处理

  • 1.

    成都理工大学材料与化学化工学院，四川　成都　610059

  • 2.

    贵州省地质矿产勘查开发局　105地质大队，贵州　贵阳　550018

  • 基金项目: 贵州省科技厅([2019]1424)资助
详细信息
    作者简介: 贺广喜（1997-），男，在读研究生，研究方向为粘土矿物的开发与利用
    通讯作者: 朱霞萍（1968-），女，博士，教授，硕士生导师，主要从事土壤、水体环境污染防控及修复技术的研究。

  • 中图分类号: TD989

Preparation Process of Attapulgite/Nano Iron Composite and its Removal Application to Methylene Blue

  • 1.

    College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, China

  • 2.

    105 Geological Brigade, Guizhou Bureau of Geology & Mineral Exploration & Development, Guiyang 550018, Guizhou, China

More Information

    摘要

  • 这是一篇陶瓷及复合材料领域的论文。亚甲基蓝（MB）是工业染料废水中的典型污染物，不经处理任意排放会给水体带来非常大的危害。本文通过对凹凸棒石灼烧、有机超声改性和原位负载纳米铁制备了凹凸棒石/纳米铁复合材料（DDBAC/ATP/nZVI）。得到了复合材料的制备工艺：凹凸棒石原土经300 ℃焙烧1.5 h后加入20 mmol/100 g十二烷基二甲基苄基氯化铵（DDBAC），超声20 min，然后用液相还原法负载纳米铁，铁土比为1∶3、KBH4浓度为0.25 mol/L、反应时间为3 h。XRD、IR、SEM、BET、XPS等表征证实了DDBAC和纳米铁成功负载到凹凸棒石表面。复合材料对亚甲基蓝的较大吸附去除量为114.94 mg/g，60 d内应用性能稳定。

    This is an article in the field of ceramics and composites. Methylene blue is a typical pollutant industrial wastewater.It will bring great harm to the water body if it is discharged arbitrarily without treatment. We prepared a kind of attapulgite/nano iron composite (DDBAC/ATP/nZVI), that the attapulgite was roasted, organic modified and then loaded with nano iron (nZVI) by liquid-phase reduction. The optimum preparation process is obtained: attapulgite raw soil is calcined at 300 ℃ for 1.5 h, 20 mmol/100 g benzalkonium chloride(DDBAC)is added, then ultrasonic is used for 20 min, and then nano iron is loaded by liquid-phase reduction method. The ratio of iron to soil is 1:3, KBH4 concentration is 0.25 mol/L and reaction time is 3 h. The XRD, FTRI, SEM, XPS, BET confirm that DDBAC and nano iron are successfully loaded on the surface of attapulgite. The maximum removal of methylene blue by DDBAC/ATP/nZVI is 114.94 mg/g, and the application performance of the DDBAC/ATP/nZVI remains stable within 60 days.

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  • 图 1  焙烧温度（a）和焙烧时间（b）对复合材料去除亚甲基蓝的影响

    Figure 1. 

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    图 2  有机改性剂种类及用量对复合材料去除亚甲基蓝的影响

    Figure 2. 

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    图 3  超声时间（a）、铁土比（b）、KBH4浓度（c）、反应时间（d）对复合材料去除亚甲基蓝的影响

    Figure 3. 

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    图 4  凹凸棒石（a）和DDBAC/ATP/nZVI复合材料(b)的XRD

    Figure 4. 

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    图 5  凹凸棒石（a）和DDBAC/ATP/nZVI复合材料(b)的IR

    Figure 5. 

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    图 6  凹凸棒石（a:1 μm b: 2 μm c: 5 μm）和DDBAC/ATP/nZVI复合材料（d:1 μm e: 2 μm f: 5 μm）的SEM

    Figure 6. 

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    图 7  (a):反应前后DDBAC/ATP/nZVI的XPS全扫描谱a前，b后; (b):吸附亚甲基蓝前后的DDBAC/ATP/nZVI的Fe2p谱

    Figure 7. 

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    图 8  ATP和DDBAC/ATP/nZVI复合材料对亚甲基蓝的去除效果

    Figure 8. 

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    图 9  DDBAC/ATP/nZVI复合材料稳定性能

    Figure 9. 

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    表 1  凹凸棒石及DDBAC/ATP/nZVI复合材料的BET参数

    Table 1.  BET parameters of attapulgite and DDBAC/ATP/nZVI composites

    样品比表面积
    /(m2/g)    		孔容
    /(cc/g)    		孔(Dv(d))
    /nm
    ATP52.0800.0792.091
    DDBAC/ATP/nZVI84.4080.1583.841
    下载: 导出CSV
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收稿日期:  2022-09-02
刊出日期:  2024-04-25

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