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Reduced Phosphomolybdates as Molecular Catalysts for Hexavalent Chromium Reduction
Author(s) -
Gong Kaining,
Liu Yunping,
Wang Weijie,
Fang Tim,
Zhao Chuan,
Han Zhangang,
Zhai Xueliang
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500883
Subject(s) - chemistry , catalysis , hexavalent chromium , formic acid , noble metal , chromium , reducing agent , nanoparticle , inorganic chemistry , heterogeneous catalysis , metal , nanotechnology , organic chemistry , materials science
Hybrid phosphomolybdates consisting of highly reduced {Mn II (P V 4 Mo V 6 O 31 ) 2 } clusters have been reported as heterogeneous molecular catalysts for the reduction of toxic Cr VI to nontoxic Cr III using formic acid (FA) as the reducing agent. The experimental results show that these types of nonprecious hybrids are highly active for the catalytic reduction of Cr VI under mild conditions. In comparison with noble metal Pt/Pd nanoparticle (NP) catalysts that are widely used for the reaction, the phosphomolybdate hybrids are inexpensive and easy to prepare. Importantly, their structures can be designed and optimised. This study highlights noble metal‐free phosphomolybdates as a novel type of heterogeneous catalyst for the treatment of Cr VI ‐containing wastewater.