Existing form of Mo(Ⅵ) in acidic sulfate solution

• Published in: Rare metals Vol. 36; no. 7; pp. 612 - 616
• Main Authors: Wang, Ming-Yu, Jiang, Chang-Jun, Wang, Xue-Wen, Xian, Peng-Fei, Wang, Hua-Guang, Yang, Yang
• Format: Journal Article
• Language: English
• Published: Beijing Nonferrous Metals Society of China 01.07.2017; Springer Nature B.V
• Subjects: Adsorption; Biomaterials; Chemistry and Materials Science; Energy; Infrared radiation; Infrared spectra; Infrared spectroscopy; Ion exchange; Materials Engineering; Materials Science; Metallic Materials; Molybdenum; Nanoscale Science and Technology; Physical Chemistry; Spectrum analysis; X ray photoelectron spectroscopy; Ion exchange; Acidic sulfate solution; Molybdenum
• ISSN: 1001-0521; 1867-7185
• DOI: 10.1007/s12598-015-0548-8

The existing form of molybdenum in acidic sulfate solution was studied by means of ion exchange,infrared（IR） spectra and X-ray photoelectron spectroscopy（XPS）.The results indicate that the anionic molybdenum species are predominant in acidic sulfate solution,and Mo（VI） can combine with sulfate radical to form heteropoly acid anions[Mo2O5（SO4）2]2- and[MoO2（HSO4）4]2-.With the decrease in solution pH from 1.92 to 0.06,the existing form of Mo（VI） changes from Mo7O21（OH）33- to[Mo2O5（SO4）2]2- and then becomes[MoO2（HSO4）4]2-,which results in the decrease in the resin adsorption capacity for molybdenum.