Abstract
MXene, a new series of 2D material, has been steadily advancing its applications to a variety of fields, such as catalysis, supercapacitor, molecular separation, electromagnetic wave interference shielding. This work reports a carefully designed aqueous droplet light heating system along with a thorough mathematical procedure, which combined leads to a precise determination of internal light-to-heat conversion efficiency of a variety of nanomaterials. The internal light-to-heat conversion efficiency of MXene, more specifically Ti3C2, was measured to be 100%, indicating a perfect energy conversion. Furthermore, a self-floating MXene thin membrane was prepared by simple vacuum filtration and the membrane, in the presence of a rationally chosen heat barrier, produced a light-to-water-evaporation efficiency of 84% under one sun irradiation, which is among the state of art energy efficiency for similar photothermal evaporation system. The outstanding internal light-to-heat conversion efficiency and great light-to-water evaporation efficiency reported in this work suggest that MXene is a very promising light-to-heat conversion material and thus deserves more research attention toward practical applications.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3752-3759 |
| Number of pages | 8 |
| Journal | ACS Nano |
| Volume | 11 |
| Issue number | 4 |
| DOIs | |
| State | Published - Mar 29 2017 |
Bibliographical note
KAUST Repository Item: Exported on 2020-10-01Acknowledgements: The authors are grateful to KAUST for very generous financial support. Professor Peng Wang would like to thank the anonymous reviewers for their comments and suggestions which significantly improved the quality of the manuscript.
