Phase-Transition Induced Conversion into a Photothermal Material: Quasi-Metallic WO2.9 Nanorods for Solar Water Evaporation and Anticancer Photothermal Therapy

Lei Sun; Zhuo Li; Rui Su; Yuanlin Wang; Zhenglin Li; Baosheng Du; Ye Sun; Pengfei Guan; Flemming Besenbacher; Miao Yu

doi:10.1002/anie.201806611

Phase-Transition Induced Conversion into a Photothermal Material: Quasi-Metallic WO_2.9 Nanorods for Solar Water Evaporation and Anticancer Photothermal Therapy

Lei Sun, Zhuo Li, Rui Su, Yuanlin Wang, Zhenglin Li, Baosheng Du, Ye Sun^*, Pengfei Guan, Flemming Besenbacher, Miao Yu

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

125 Citations (Scopus)

Abstract

Phase transition from WO3 to sub-stoichiometric WO2.9 by a facile method has varied the typical semiconductor to be quasi-metallic with a narrowed band gap and a shifted Femi energy to the conduction band, while maintaining a high crystallinity. The resultant WO2.9 nanorods possess a high total absorption capacity (ca. 90.6%) over the whole solar spectrum as well as significant photothermal conversion capability, affording a conversion efficiency as high as around 86.9% and a water evaporation efficiency of about 81% upon solar light irradiation. Meanwhile, the promising potential of the nanorods for anticancer photothermal therapy have been also demonstrated, with a high photothermal conversion efficiency (ca. 44.9%) upon single wavelength near-infrared irradiation and a high tumor inhibition rate (ca. 98.5%). This study may have opened up a feasible route to produce high-performance photothermal materials from well-developed oxides.

Original language	English
Journal	Angewandte Chemie International Edition
Volume	57
Issue	33
Pages (from-to)	10666-10671
Number of pages	6
ISSN	1433-7851
DOIs	https://doi.org/10.1002/anie.201806611
Publication status	Published - 13 Aug 2018

Keywords

hydrogenation
nanorod
photothermal therapy
solar water evaporation
WO2.9
EFFICIENT ABLATION
STEAM-GENERATION
WO3 NANOFLAKES
QUANTUM DOTS
IN-VIVO
CANCER
AGENT
PERFORMANCE
HYDROGEN
NANOPARTICLES

Access to Document

10.1002/anie.201806611

Cite this

@article{668c179ff2994533872738f3c0b0314e,

title = "Phase-Transition Induced Conversion into a Photothermal Material: Quasi-Metallic WO2.9 Nanorods for Solar Water Evaporation and Anticancer Photothermal Therapy",

abstract = "Phase transition from WO3 to sub-stoichiometric WO2.9 by a facile method has varied the typical semiconductor to be quasi-metallic with a narrowed band gap and a shifted Femi energy to the conduction band, while maintaining a high crystallinity. The resultant WO2.9 nanorods possess a high total absorption capacity (ca. 90.6%) over the whole solar spectrum as well as significant photothermal conversion capability, affording a conversion efficiency as high as around 86.9% and a water evaporation efficiency of about 81% upon solar light irradiation. Meanwhile, the promising potential of the nanorods for anticancer photothermal therapy have been also demonstrated, with a high photothermal conversion efficiency (ca. 44.9%) upon single wavelength near-infrared irradiation and a high tumor inhibition rate (ca. 98.5%). This study may have opened up a feasible route to produce high-performance photothermal materials from well-developed oxides.",

keywords = "hydrogenation, nanorod, photothermal therapy, solar water evaporation, WO2.9, EFFICIENT ABLATION, STEAM-GENERATION, WO3 NANOFLAKES, QUANTUM DOTS, IN-VIVO, CANCER, AGENT, PERFORMANCE, HYDROGEN, NANOPARTICLES",

author = "Lei Sun and Zhuo Li and Rui Su and Yuanlin Wang and Zhenglin Li and Baosheng Du and Ye Sun and Pengfei Guan and Flemming Besenbacher and Miao Yu",

year = "2018",

month = aug,

day = "13",

doi = "10.1002/anie.201806611",

language = "English",

volume = "57",

pages = "10666--10671",

journal = "Angewandte Chemie International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "33",

}

Phase-Transition Induced Conversion into a Photothermal Material: Quasi-Metallic WO_2.9 Nanorods for Solar Water Evaporation and Anticancer Photothermal Therapy. / Sun, Lei; Li, Zhuo; Su, Rui et al.
In: Angewandte Chemie International Edition, Vol. 57, No. 33, 13.08.2018, p. 10666-10671.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

TY - JOUR

T1 - Phase-Transition Induced Conversion into a Photothermal Material

T2 - Quasi-Metallic WO2.9 Nanorods for Solar Water Evaporation and Anticancer Photothermal Therapy

AU - Sun, Lei

AU - Li, Zhuo

AU - Su, Rui

AU - Wang, Yuanlin

AU - Li, Zhenglin

AU - Du, Baosheng

AU - Sun, Ye

AU - Guan, Pengfei

AU - Besenbacher, Flemming

AU - Yu, Miao

PY - 2018/8/13

Y1 - 2018/8/13

N2 - Phase transition from WO3 to sub-stoichiometric WO2.9 by a facile method has varied the typical semiconductor to be quasi-metallic with a narrowed band gap and a shifted Femi energy to the conduction band, while maintaining a high crystallinity. The resultant WO2.9 nanorods possess a high total absorption capacity (ca. 90.6%) over the whole solar spectrum as well as significant photothermal conversion capability, affording a conversion efficiency as high as around 86.9% and a water evaporation efficiency of about 81% upon solar light irradiation. Meanwhile, the promising potential of the nanorods for anticancer photothermal therapy have been also demonstrated, with a high photothermal conversion efficiency (ca. 44.9%) upon single wavelength near-infrared irradiation and a high tumor inhibition rate (ca. 98.5%). This study may have opened up a feasible route to produce high-performance photothermal materials from well-developed oxides.

AB - Phase transition from WO3 to sub-stoichiometric WO2.9 by a facile method has varied the typical semiconductor to be quasi-metallic with a narrowed band gap and a shifted Femi energy to the conduction band, while maintaining a high crystallinity. The resultant WO2.9 nanorods possess a high total absorption capacity (ca. 90.6%) over the whole solar spectrum as well as significant photothermal conversion capability, affording a conversion efficiency as high as around 86.9% and a water evaporation efficiency of about 81% upon solar light irradiation. Meanwhile, the promising potential of the nanorods for anticancer photothermal therapy have been also demonstrated, with a high photothermal conversion efficiency (ca. 44.9%) upon single wavelength near-infrared irradiation and a high tumor inhibition rate (ca. 98.5%). This study may have opened up a feasible route to produce high-performance photothermal materials from well-developed oxides.

KW - hydrogenation

KW - nanorod

KW - photothermal therapy

KW - solar water evaporation

KW - WO2.9

KW - EFFICIENT ABLATION

KW - STEAM-GENERATION

KW - WO3 NANOFLAKES

KW - QUANTUM DOTS

KW - IN-VIVO

KW - CANCER

KW - AGENT

KW - PERFORMANCE

KW - HYDROGEN

KW - NANOPARTICLES

U2 - 10.1002/anie.201806611

DO - 10.1002/anie.201806611

M3 - Journal article

C2 - 29900645

SN - 1433-7851

VL - 57

SP - 10666

EP - 10671

JO - Angewandte Chemie International Edition

JF - Angewandte Chemie International Edition

IS - 33