Add time:07/21/2019         Source:sciencedirect.com

Novel Mg-doped Zn(O,S) nanoparticles were synthesized by a chemical precipitation process at 90 ℃ and the prepared nanoparticles were characterized by XRD, SEM, HRTEM, XPS, UV–vis, DRS, PL, EIS, and photocurrent response. The photocatalytic reduction for the 4-nitrophenol using Na2SO3 under UV light irradiation showed that Mg–Zn(O,S)-2.5 exhibited higher activity compared with other samples. 96.7% of 4-nitrophenolate ion reduced into 4-aminophenol within 45 min. Mg–Zn(O,S)-2.5 was also tested for hydrogen evolution, where the rates of 1035 μmol/g for the 4-NP-free sample and 705 μmol/g for the 4-NP-added one were achieved. Finally, the stability and reaction mechanism was mentioned.

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