摘要
Efficient utilization of solar energy is highly desirable in the field of photocatalysis. However, the near-infrared part of the solar spectrum, which constitutes about 44% of sunlight, has rarely been used. Herein, we report that the TiO2 coupled with MXene Ti3C2 nanosheets shows promising photoactivity for ethylene oxidation under near infrared light（NIR） irradiation. Moreover, the Pt nanoparticle decoration can dramatically improve the performance of TiO2–Ti3C2 nanocomposites. Within 15 minutes irradiation of the NIR light, 444 ppm of C2 H4 is completely removed over 1 wt%Pt–TiO2–Ti3C2 and the catalyst exhibits excellent stability. It is expected that our work could provide useful information for the design and synthesis of efficient and stable NIR active photocatalyst for the target applications.
Efficient utilization of solar energy is highly desirable in the field of photocatalysis. However, the near-infrared part of the solar spectrum, which constitutes about 44% of sunlight, has rarely been used. Herein, we report that the TiO2 coupled with MXene Ti3C2 nanosheets shows promising photoactivity for ethylene oxidation under near infrared light（NIR） irradiation. Moreover, the Pt nanoparticle decoration can dramatically improve the performance of TiO2–Ti3C2 nanocomposites. Within 15 minutes irradiation of the NIR light, 444 ppm of C2 H4 is completely removed over 1 wt%Pt–TiO2–Ti3C2 and the catalyst exhibits excellent stability. It is expected that our work could provide useful information for the design and synthesis of efficient and stable NIR active photocatalyst for the target applications.
基金
Financially supported by the National Natural Science Foundation of China(No.21607153,21373224 and 21577143)
the Natural Science Foundation of Fujian Province(No.2015J05044 and 2017J05031)
the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB20000000)
the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences(No.QYZDB-SSW-JSC027)
