首页 > 过刊浏览>2025年第57卷第1期 >157-166. DOI:10.13758/j.cnki.tr.2025.01.018
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高吸附量ZIF-67合成及其在水土体系三氯乙烯检测中的应用
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O657.7

基金项目:

国家重点研发计划项目(2020YFC1807200)和江苏省碳达峰碳中和科技创新专项(BK20220004)资助。


Synthesis of High Adsorption Capacity ZIF-67 and Its Application in the Detection of Trichloroethylene in Water-Soil System
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Fund Project:

the National Key Research and Development Program of China (2020YFC1807200), the Science and Technology Innovation Special Foundation for Carbon Peak and Carbon Neutrality of Jiangsu Province (BK20220004)

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    摘要:

    在常温条件下合成金属有机骨架材料ZIF-67，制备固相微萃取涂层，建立了三氯乙烯(TCE)固相微萃取方法，并对水土体系中TCE进行了检测。结果表明：ZIF-67具有高比表面积以及微孔结构，对气态TCE最大饱和吸附量达626 mg/g。采用物理涂敷法制备ZIF-67固相微萃取纤维，在240℃的解吸温度下，涂层材料的色谱基线稳定，在水和水土体系中最佳萃取温度和萃取时间均分别为60℃和30 min；土壤的高吸附固定能力不利于水土体系中TCE的萃取。ZIF-67固相微萃取方法检出限低，样品测定重复性好，可应用于实际水土中TCE的微量检测。

    Abstract:

    In this study, a novel metal organic framework material, ZIF-67, was synthesized at room temperature for the development of solid-phase microextraction(SPME) coatings designed for the detection of trichloroethylene (TCE). The results showed that ZIF-67 exhibited the high specific surface area and a microporous structure. Its maximum saturated adsorption capacity for gaseous TCE reached 626 mg/g. SPME fibers coated with ZIF-67 were prepared using physical coating method. At a desorption temperature of 240 ℃, the chromatographic baseline of the coating material remained stable. The optimal extraction temperature in both water and water-soil system is 60℃, with an optical extraction time of 30 minutes. The high adsorption and fixation of TCE onto soils were found to hinder efficient TCE extraction. This method, with a low detection limit and good repeatability, is suitable for the trace detection of TCE in water and soil in practical environments.

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马瑞,檀顶,张玥,江煜,蒋倩,王小治,刘海龙,刘云.高吸附量ZIF-67合成及其在水土体系三氯乙烯检测中的应用[J].土壤,2025,57(1):157-166. MA Rui, TAN Ding, ZHANG Yue, JIANG Yu, JIANG Qian, WANG Xiaozhi, LIU Hailong, LIU Yun. Synthesis of High Adsorption Capacity ZIF-67 and Its Application in the Detection of Trichloroethylene in Water-Soil System[J]. Soils,2025,57(1):157-166

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  • 收稿日期:2024-02-05
  • 最后修改日期:2024-03-18
  • 录用日期:2024-03-22
  • 在线发布日期: 2025-03-13
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