Catalytic Dephosphorylation Using Ceria Nanocrystals
| Autor: | Pengfei Xie, Michael J. Manto, Chao Wang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
education.field_of_study
Aqueous solution Chemistry Phosphorus Inorganic chemistry Population chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Heterogeneous catalysis Phosphate 01 natural sciences Catalysis 0104 chemical sciences Dephosphorylation chemistry.chemical_compound Reaction rate constant 0210 nano-technology education |
| Zdroj: | ACS Catalysis. 7:1931-1938 |
| ISSN: | 2155-5435 |
| DOI: | 10.1021/acscatal.6b03472 |
| Popis: | Phosphorus is a crucial element for living systems and plays significant roles in plant growth. The world’s supply of phosphorus today, however, relies on depleting feedstocks such as phosphate rocks, while the demand for phosphorus fertilizers escalates as the population continues to grow. It is thus urgent to develop sustainable sources and production methods for phosphorus. Here, we report on catalytic dephosphorylation for phosphorus recovery from organic and biological molecules. Ceria (CeO2) nanocrystals were synthesized with shape control and applied as artificial phosphatases to cleave the phosphate ester bond in para-nitrophenyl phosphate and release free phosphate anions in aqueous solutions. The dephosphorylation reaction was studied on the CeO2 nanocrystals at various temperatures to evaluate the dependences of rate constant, activation energy, and recyclability on the particle shape. The structure–property relationships established in these studies suggest that the oxygen vacancies on the sur... |
| Databáze: | OpenAIRE |
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