Facile synthesis of CuS nanostructured flowers and their visible light photocatalytic properties

作者：Wu, Huijie; Li, Yuan^*; Li, Qing

来源：Applied Physics A, 2017, 123(3): 196.

DOI：10.1007/s00339-017-0800-1

• LARGE-SCALE
• THIN-FILMS
• ONE-STEP
• PRECURSOR
• NANORODS
• ROUTE
• NANOPARTICLES
• DEGRADATION
• NANOSPHERES
• TEMPERATURE

Uniform CuS nanostructured flowers have been generated conveniently in aqueous solution without using any surfactant. The products were characterized by XRD, XPS, EDX, FESEM, TEM, UV-Vis, PL, and BET techniques. The as-prepared CuS nanostructured flowers have a diameter of about 800-1200 nm and are in high yield. The flowers were formed by the assembly of numerous nanosheets. A tentative explanation for the growth mechanism of CuS nanostructured flowers was proposed. UV-Vis absorption spectrum and PL spectrum were used to investigate the optical properties of CuS nanostructured flowers. UV-Vis absorption spectrum shows a broad absorption band in the visible range and PL spectrum shows a strong ultraviolet emission peak. The BET surface area of the asprepared product was determined to be 61.55 m(2)/g with a dominant pore diameter of 26 nm. The photocatalytic activity was evaluated by measuring the decomposition rate of methylene blue aqueous solution under visible light irradiation and results indicated that the as-prepared CuS nanostructured flowers exhibit enhanced visible light photocatalytic activity with the assistence of H2O2.

• 出版日期2017-3
• 单位西南大学; 重庆文理学院