Removal of Cr(VI) from Aqueous Solution by Nanoscale Zero-Valent Iron

被引：3
|
作者：
Yin, Yanan [1 ]
Wang, Jianlong [1 ,2 ]
机构：
[1] Tsinghua Univ, INET, Collaborat Innovat Ctr Adv Nucl Energy Technol, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Beijing Key Lab Radioact Waste Treatment, Beijing 100084, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2017年 / 17卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Chromium; Heavy Metal; Nanoscale Iron; Kinetic; Thermodynamics; METHYLENE-BLUE ADSORPTION; REDUCTIVE DECHLORINATION; CHROMATE REDUCTION; P-CHLOROPHENOL; HEXAVALENT CHROMIUM; HEAVY-METALS; FE-0; BIOSORPTION; REMEDIATION; GROUNDWATER;
D O I：
10.1166/jnn.2017.13831
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The removal of Cr(VI) from aqueous solution using nanoscale iron particles was investigated. The effect of pH and temperature on Cr(VI) reduction was determined. The results showed that the removal efficiency of Cr(VI) increased with increase of the initial concentration of Cr(VI) from 1 to 10 mg/L. The removal process of Cr(VI) by nano-iron particles followed the first-order reaction kinetics and the rate constant was in the range of 0.164-0.184 min(-1). The thermodynamic parameters, such as entropy (Delta S), free energy (Delta G) and enthalpy (Delta H) of Cr(VI) reduction by nano-iron particles were calculated. The reduction of Cr(VI) by nanoscale iron particles was spontaneous process.
引用
收藏
页码：5864 / 5868
页数：5
相关论文
共 50 条
  • [1] Removal of U(VI) from aqueous solution by nanoscale zero-valent iron
    Li, X.-Y., 1600, Atomic Energy Press (34):
  • [2] Stabilization of nanoscale zero-valent iron (nZVI) with modified biochar for Cr(VI) removal from aqueous solution
    Dong, Haoran
    Deng, Junmin
    Xie, Yankai
    Zhang, Cong
    Jiang, Zhao
    Cheng, Yujun
    Hou, Kunjie
    Zeng, Guangming
    JOURNAL OF HAZARDOUS MATERIALS, 2017, 332 : 79 - 86
  • [3] Removal of U(VI) in Aqueous Solution by Nanoscale Zero-Valent Iron(nZVI)
    Li, Xiaoyan
    Zhang, Ming
    Liu, Yibao
    Li, Xun
    Liu, Yunhai
    Hua, Rong
    He, Caiting
    WATER QUALITY EXPOSURE AND HEALTH, 2013, 5 (01): : 31 - 40
  • [4] Removal of U(VI) in Aqueous Solution by Nanoscale Zero-Valent Iron(nZVI)
    Xiaoyan Li
    Ming Zhang
    Yibao Liu
    Xun Li
    Yunhai Liu
    Rong Hua
    Caiting He
    Water Quality, Exposure and Health, 2013, 5 : 31 - 40
  • [5] Nanoscale zero-valent iron loaded vermiform expanded graphite for the removal of Cr (VI) from aqueous solution
    Cai, Xinwei
    Qiu, Yangshuai
    Zhou, Yanhong
    Jiao, Xuan
    ROYAL SOCIETY OPEN SCIENCE, 2021, 8 (08):
  • [6] Removal of Cr(VI) from Aqueous Solution by Nanoscale Zero-Valent Iron Grafted on Acid-Activated Attapulgite
    Quan, Guixiang
    Zhang, Jing
    Guo, Jing
    Lan, Yeqing
    WATER AIR AND SOIL POLLUTION, 2014, 225 (06):
  • [7] Removal of Cr(VI) from Aqueous Solution by Nanoscale Zero-Valent Iron Grafted on Acid-Activated Attapulgite
    Guixiang Quan
    Jing Zhang
    Jing Guo
    Yeqing Lan
    Water, Air, & Soil Pollution, 2014, 225
  • [8] Nanoscale zero-valent iron supported on mesoporous silica: Characterization and reactivity for Cr(VI) removal from aqueous solution
    Petala, Eleni
    Dimos, Konstantinos
    Douvalis, Alexios
    Bakas, Thomas
    Tucek, Jiri
    Zboril, Radek
    Karakassides, Michael A.
    JOURNAL OF HAZARDOUS MATERIALS, 2013, 261 : 295 - 306
  • [9] Removal of Cr(VI) from aqueous solution using organically modified attapulgite-supported nanoscale zero-valent iron
    Xu, Hai-Yu
    Zhang, Ming-Qing
    Chen, Yi-Yu
    Zhongguo Huanjing Kexue/China Environmental Science, 2019, 39 (12): : 5079 - 5084
  • [10] Removal of chloramphenicol from aqueous solution by nanoscale zero-valent iron particles
    Xia, Siqing
    Gu, Zaoli
    Zhang, Zhiqiang
    Zhang, Jiao
    Hermanowicz, Slawomir W.
    CHEMICAL ENGINEERING JOURNAL, 2014, 257 : 98 - 104
12345