| 2 | Tin stearate organometallic precursor prepared SnO_2 quantum dots nanopowder for aqueous- and non-aqueous medium photocatalytic hydrogen gas evolution显示文摘Current study reports a rapid one-pot non-hydrolytic condition in the synthesis of Sn O_2 QDs nanopowder using tin(II) stearate(Sn(St)_2) as environmentally-benign organometallic precursor,which is an unprecedentedly employed-compound in preceding Sn O_2 nanopowder productions.The as-synthesized Sn O_2 QDs that are hydrophobic can be easily transferred from organic solvent to aqueous solution through a robust ligand exchange method.The stearate-capping ligands on the surface of QDs can be replaced by beta-cyclodextrin(β-CD) and eventually render the QDs highly water soluble,which ultimately make it exhibit bi-functionality for different liquid medium applications.Structural characterizations reveal that the bi-functional QDs are indeed well-matched with the standard rutile Sn O_2 cassiterite phase without the presence of any impurities.The QDs can be interchangeably used as photocatalyst for both aqueous and non-aqueous phase,where it shows significant enhancement of hydrogen gas production as compared to that of commercial Sn O_2 nanopowder. | Choonyian Haw Weesiong Chiu Noor Hamizah Khanis Saadah Abdul Rahman Poisim Khiew Shahidan Radiman Roslan Abd-Shukor Muhammad Azmi Abdul Hamid | 2016 | Journal of Energy Chemistry2016，25，4： | 0 |
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