A novel method to prepare a magnetic carbon-based adsorbent with sugar-containing water as the carbon source and DETA as the modifying reagent

作者：Liu, Yunjie; Ren, Dezhang; Song, Zhiyuan; Wan, Xinyan; Zhang, Chuntao; Jin, Fangming; Huo, Zhibao^*

来源：Environmental Science and Pollution Research, 2018, 25(14): 13645-13659.

DOI：10.1007/s11356-018-1493-5

• Sugar-containing waste water
• DETA
• Magnetic adsorbent
• Hydrothermal reaction
• Glucose
• Core-shell structure

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 Cu2+, Pb2+, and Cd2+ 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.

• 出版日期2018-5
• 单位上海交通大学