4.7 Article

Nanocomposites based on 3D macroporous biomass carbon with SnS2 nanosheets hierarchical structure for efficient removal of hexavalent chromium

期刊

CHEMICAL ENGINEERING JOURNAL
卷 369, 期 -, 页码 1138-1149

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2019.03.096

关键词

3D microporous carbon; SnS2; Photocatalysis; Cr(VI)-containing wastewater

资金

  1. JiangSu province Undergraduate Innovation and Entrepreneurship training program [201810324005Z]
  2. University Science Research Surface Project of Jiangsu Province [16KJB150039]
  3. Youth project of Natural Science Foundation of Jiangsu of China [BK20160442]
  4. University of Macau, Science and Technology Development Fund [SRG2016-00092-IAPME, MYRG2018-00079-IAPME, 081/2017/A2, 0059/2018/A2, 009/2017/AMJ]
  5. Macao SAR (FDCT)
  6. Zhou Shan Science and Technology project [2018C21010]

向作者/读者索取更多资源

In this study, a novel nanocomposite, carbon/SnS(2 )with 3D hierarchical macroporous (MCS), was successfully prepared for rapid photocatalytic treatment of hexavalent chromium (Cr(VI)). The 3D macroporous carbon (MC) can be obtained through a simple carbonization process of loofah. Since the MCS has a large specific surface area, it can provide numerous photocatalytic active sites and has excellent adsorption properties for the Cr(VI). In addition, the excellent electrical conductivity and unique hierarchical nanoarchitecture of macroporous biomass carbon could rapidly absorb the Cr(VI) from wastewater and provide electron transport tunnel for rapid charge separation/ transport to suppress hole electron recombination. It is confirmed that such three dimensional photocatalytic material can quickly purify Cr(VI)-containing wastewater under mild visible light irradiation, with a efficiency of 63.2% Cr(VI) reduction within 120 mins. Besides the high visible light-driven photocatalytic activity, MCS also exhibits excellent cycling stability. In addition, the SEM images of MCS before and after photocatalytic removal of Cr(VI) indicate that the morphology of composite was perfectly maintained and no peeling-off of SnS(2 )was observed. More importantly, this study demonstrated that MCS can be used for practical applications due to its stability and economic availability.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据