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首页> 外文期刊>Environmental Science and Pollution Research >A novel method to prepare a magnetic carbon-based adsorbent with sugar-containing water as the carbon source and DETA as the modifying reagent
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A novel method to prepare a magnetic carbon-based adsorbent with sugar-containing water as the carbon source and DETA as the modifying reagent

机译：一种制备含糖水作为碳源和DETA制备含糖水的磁性碳基吸附剂的新方法作为改性试剂

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摘要

A novel magnetic heavy metal adsorbent was prepared via diethylenetriamine (DETA) modification on magnetic hydrothermal carbon, with glucose and sugar-containing waste water as the carbon source. The prepared materials were characterized by FT-IR, SEM, TEM, EDXRF, TGA, elemental analysis, XPS, and magnetic moment determination. In this paper, the adsorption mechanism of the modified and unmodified adsorbents was well discussed. Four kinds of waste water (watermelon juice, expired sprite, sugar-pressing waste water, and confectionary waste water) were employed to produce heavy metal ion adsorbents; the chemical properties of hydrothermal carbon derived from the proposed sources were analyzed as well. The maximum uptake capacity for Cu_(2+), Pb_(2+), and Cd_(2+)of the adsorbent produced from glucose was 26.88, 103.09, and 25.38?mg?g_(?1), respectively. After 5?cycles, the adsorption ability was still well preserved. This work represents an efficient new direction for the treatment of heavy metal ions in water and the reuse of sugar-containing waste water. Graphical abstract The schemetic of DETA-modified magnetic carbon preparing from sugar-containing wastewater.
机译：通过对磁性热碳的二亚乙基三胺（DETA）改性制备一种新型磁性重金属吸附剂，用葡萄糖和含糖的废水作为碳源。通过FT-IR，SEM，TEM，EDXRF，TGA，元素分析，XPS和磁矩测定表征制备的材料。本文讨论了改性和未改性吸附剂的吸附机理。采用四种废水（西瓜汁，过期精灵，糖压力水和糖果废水）生产重金属离子吸附剂;分析了来自所提出的来源的水热碳的化学性质。由葡萄糖制备的吸附剂的Cu_（2+），Pb_（2+）和CD_（2+）的最大摄取容量分别为26.88,103.09和25.38Ωmg≤g_（α1）。 5℃之后，循环，吸附能力仍然保存得很好。这项工作代表了在水中处理重金属离子的有效新方向和含糖废水的再利用。图解摘要含糖废水制备的含糖废水的抗衡磁碳的方案。

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