Reduction of chromate by molybdenum hydrogen bronze

被引：1
|
作者：
Barber, Kevin N. [1 ]
Perkins, Cory K. [1 ]
Apblett, Allen W. [1 ]
机构：
[1] Oklahoma State Univ, Dept Chem, Stillwater, OK 74078 USA
来源：
CANADIAN JOURNAL OF CHEMISTRY | 2016年 / 94卷 / 04期
关键词：
chromate; reduction; adsorption; molybdenum hydrogen bronze; IN-SITU REMEDIATION; POLLUTED GROUNDWATERS; HEXAVALENT CHROMIUM; ION-EXCHANGE; WASTE-WATER; REMOVAL; KINETICS; CR(VI); SEPARATION; SULFIDE;
D O I：
10.1139/cjc-2015-0381
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Molybdenum hydrogen bronze, H0.57MoO3, is capable of removing up to 80 mequiv./g chromate from aqueous solution. The redox process is accompanied by adsorption of the reduced chromium species so that the chromium is completely removed from solution. Chromate removal was only weakly dependent on pH, being slightly favored at acidic pH. The kinetics appear to involve the rapid adsorption of chromate in an equilibrium process that is followed by reduction of the chromium(VI). The rate constant was found to be first order in chromate and the amount of suspended H0.57MoO3 with a rate constant of 1.40 L g(-1) min(-1).
引用
收藏
页码：401 / 405
页数：5
相关论文
共 50 条
  • [1] Pentane isomerization over molybdenum oxide prepared by H2 reduction of a hydrogen molybdenum bronze
    Matsuda, T
    Asano, Y
    Sakagami, H
    Takahashi, N
    CHEMISTRY LETTERS, 2003, 32 (06) : 556 - 557
  • [2] PROTON NMR IN A HYDROGEN MOLYBDENUM BRONZE
    CIRILLO, AC
    RYAN, L
    GERSTEIN, BC
    FRIPIAT, JJ
    JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (07): : 3060 - 3068
  • [3] ELECTRONIC-PROPERTIES OF HYDROGEN MOLYBDENUM BRONZE
    TINET, D
    CANESSON, P
    ESTRADE, H
    FRIPIAT, JJ
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1980, 41 (06) : 583 - 589
  • [4] PROTON SHIFT TENSORS IN HYDROGEN MOLYBDENUM BRONZE
    NICOL, AT
    TINET, D
    FRIPIAT, JJ
    JOURNAL DE PHYSIQUE, 1980, 41 (05): : 423 - 425
  • [5] FORMATION OF A HYDROGEN INSERTION COMPOUND OF HYDRATED MOLYBDENUM OXIDE FROM HYDROGEN MOLYBDENUM BRONZE
    EDA, K
    SOTANI, NY
    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1989, 62 (12) : 4039 - 4040
  • [6] Catalytic activity improvement of platinum toward oxygen reduction reaction promoted by hydrogen molybdenum bronze
    Huang, You-Ju
    Li, Wei-Shan
    Huang, Qing-Dan
    Li, Wei
    Zhang, Qing-Long
    Jiang, La-Sheng
    Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities, 2007, 28 (05): : 918 - 921
  • [7] Catalytic activity improvement of platinum toward oxygen reduction reaction promoted by hydrogen molybdenum bronze
    Huang You-Ju
    Li Wei-Shan
    Huang Qing-Dan
    Zhang Qing-Long
    Jiang La-Sheng
    CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2007, 28 (05): : 918 - 921
  • [8] Study of the kinetics of reduction of iron chromate by hydrogen
    Arvanitidis, I
    Artin, C
    Claeson, P
    Jacobsson, H
    Johansson, P
    Rassmus, J
    Swartling, D
    SCANDINAVIAN JOURNAL OF METALLURGY, 1996, 25 (04) : 141 - 147
  • [9] HYDROGEN REDUCTION OF MOLYBDENUM TRIFLUORIDE
    RYCHAGOV, AV
    KOROLEV, YM
    ZHURNAL NEORGANICHESKOI KHIMII, 1977, 23 (01): : 263 - 265
  • [10] Relationship of hydrogen bioavailability to chromate reduction in aquifer sediments
    Marsh, TL
    McInerney, MJ
    APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2001, 67 (04) : 1517 - 1521
12345