皮革科学与工程 ›› 2019, Vol. 29 ›› Issue (04): 15-19.doi: 10.19677/j.issn.1004-7964.2019.04.003

• 试验研究 • 上一篇    下一篇

纳米零价铁(nZVI)插层的二维过渡金属碳化物(Ti3C2)对水中Cr(VI)的吸附

何乐林,王玥,杨晓娇,岳国宗,朱婧,赵鹏翔()   

  1. 中国工程物理研究院材料研究所,四川 绵阳 621908
  • 收稿日期:2019-04-01 出版日期:2019-08-28 上线日期:2019-09-09
  • 通讯作者: 赵鹏翔 E-mail:zhaopengxiang@caep.cn
  • 作者简介:何乐林,男,硕士研究生。
  • 基金资助:
    国家自然科学基金(项目号:21806151);四川省科技厅面上项目(218JY0287)

Adsorption of Cr(VI) in Water by Two-dimensional Transition Metal Carbide (Ti3C2) Intercalated with Cr(VI)

HE Lelin,WANG Yue,YANG Xiaojiao,YUE Guozong,ZHU Jing,ZHAO Pengxiang()   

  1. Institute of Materials, Chinese Academy of Engineering Physics,Mianyang 621908, China
  • Received:2019-04-01 Online:2019-08-28 Published:2019-09-09
  • Contact: ZHAO Pengxiang E-mail:zhaopengxiang@caep.cn

摘要:

六价铬Cr (VI) 的是制革废水中的主要污染物之一,实现制革废水的达标排放必须降低废水中Cr (VI) 含量。本文利用纳米零价铁(nZVI)原位还原实现了对二维过渡金属碳化物(Ti3C2)的插层改性,利用扫面电镜(SEM)对该复合二维材料的结构进行了确认。与目前报道的其他二维材料相比,改性后的纳米复合材料nZVI-Ti3C2对Cr (VI) 吸附效果优异,饱和吸附量可达58.92 mg/g。吸附等温线表明该吸附过程符合Langmuir模型。

关键词: 制革废水, 吸附, 渡金属碳化物, 零价铁

Abstract:

Cr(VI)is one of the main pollutants in leather industry. Reducing the amounts of Cr(VI) species in polluted water is a challenge for leather industry. In this article, the nano Zero Valent Iron (nZVI) are used to intercalate the Ti3C2 nanosheet, and the obtained nZVI- Ti3C2 nano-composite is characterized by SEM. Compared with other state-of-the-art 2D materials, this nano-composite exhibit a remarkable performance for Cr(VI) uptake, and the saturated amounts for Cr(VI) uptake arrives at 58.92 mg/g, and its sorption isotherm model fit the Langmuir model quite well.

Key words: tannery wastewater, adsorption, Ti3C2, nano-zero valent iron

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