Four Keggin-Based Nanomaterials: Synthesis and Adsorption of Organic Dyes

作者：Nasen Bate; Chen Wei-Lin^*; Liu Zhu-Jun; Xu Sha-Sha; Wang En-Bo

来源：Chinese Journal of Inorganic Chemistry, 2015, 31(9): 1820-1826.

• nanomaterial
• polyoxometalate (POM)
• adsorption
• methylene blue (MB)
• Rhodamin B (RhB)

Four Keggin-based nanomaterials (PMo12b, PW12b, SiW12b and GeW12b) were controllably prepared. The structure and the size of all the compounds have been characterized by IR, UV-Vis, XRD and SEM. Further investigations showed that four Keggin-based nanomaterials exhibited fast adsorption rate towards dye molecules. The adsorption efficiency of those compounds (100 mg) towards MB (100 mL of 20 mg center dot L-1) could reach up to 96.3% in the initial 5 min under dark condition, the adsorption efficiency sequence is PMo12b>PW12b>GeW12b> SiW12b. And also, the adsorption efficiency towards RhB (100 mL of 20 mg center dot L-1 could reach up to 96.1% in 30 min under same conditions, the adsorption efficiency sequence is PW12b>PMo12b>SiW12b>GeW12b. All the investigations indicate that the four kind of POMs-nanomaterials present excellent adsorption properties of the organic dyes.

• 出版日期2015-9-10
• 单位东北师范大学