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Title: Highly Ordered N-Doped Carbon Dots Photosensitizer on Metal–Organic Framework-Decorated ZnO Nanotubes for Improved Photoelectrochemical Water Splitting

Abstract

Abstract In spite of having several advantages such as low cost, high chemical stability, and environmentally safe and benign synthetic as well as operational procedures, the full potential of carbon dots (CDs) is yet to be explored as photosensitizers due to the challenges associated with the fabrication of well‐arrayed CDs with many other photocatalytic heterostructures. In the present study, a unique combination of metal–organic framework (MOF)‐decorated zinc oxide (ZnO) 1D nanostructures as host and CDs as guest species are explored on account of their potential application in photoelectrochemical (PEC) water splitting performance. The synthetic strategy to incorporate well‐defined nitrogen‐doped carbon dots (N‐CDs) arrays onto a zeolitic imidazolate framework‐8 (ZIF‐8) anchored on ZnO 1D nanostructures allows a facile unification of different components which subsequently plays a decisive role in improving the material's PEC water splitting performance. Simple extension of such strategies is expected to offer significant advantages for the preparation of CD‐based heterostructures for photo(electro)catalytics and other related applications.

Authors:
ORCiD logo [1];  [2];  [3];  [4];  [1]
  1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  2. Univ. of Ostrava (Czech Republic)
  3. Swansea Univ. (United Kingdom)
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1558062
Alternate Identifier(s):
OSTI ID: 1556795
Report Number(s):
LA-UR-19-20825
Journal ID: ISSN 1613-6810
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Small
Additional Journal Information:
Journal Volume: 15; Journal Issue: 40; Journal ID: ISSN 1613-6810
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; Material Science

Citation Formats

Han, Hyungkyu, Karlicky, Frantisek, Pitchaimuthu, Sudhagar, Shin, Sun Hae Ra, and Chen, Aiping. Highly Ordered N-Doped Carbon Dots Photosensitizer on Metal–Organic Framework-Decorated ZnO Nanotubes for Improved Photoelectrochemical Water Splitting. United States: N. p., 2019. Web. doi:10.1002/smll.201902771.
Han, Hyungkyu, Karlicky, Frantisek, Pitchaimuthu, Sudhagar, Shin, Sun Hae Ra, & Chen, Aiping. Highly Ordered N-Doped Carbon Dots Photosensitizer on Metal–Organic Framework-Decorated ZnO Nanotubes for Improved Photoelectrochemical Water Splitting. United States. https://doi.org/10.1002/smll.201902771
Han, Hyungkyu, Karlicky, Frantisek, Pitchaimuthu, Sudhagar, Shin, Sun Hae Ra, and Chen, Aiping. Mon . "Highly Ordered N-Doped Carbon Dots Photosensitizer on Metal–Organic Framework-Decorated ZnO Nanotubes for Improved Photoelectrochemical Water Splitting". United States. https://doi.org/10.1002/smll.201902771. https://www.osti.gov/servlets/purl/1558062.
@article{osti_1558062,
title = {Highly Ordered N-Doped Carbon Dots Photosensitizer on Metal–Organic Framework-Decorated ZnO Nanotubes for Improved Photoelectrochemical Water Splitting},
author = {Han, Hyungkyu and Karlicky, Frantisek and Pitchaimuthu, Sudhagar and Shin, Sun Hae Ra and Chen, Aiping},
abstractNote = {Abstract In spite of having several advantages such as low cost, high chemical stability, and environmentally safe and benign synthetic as well as operational procedures, the full potential of carbon dots (CDs) is yet to be explored as photosensitizers due to the challenges associated with the fabrication of well‐arrayed CDs with many other photocatalytic heterostructures. In the present study, a unique combination of metal–organic framework (MOF)‐decorated zinc oxide (ZnO) 1D nanostructures as host and CDs as guest species are explored on account of their potential application in photoelectrochemical (PEC) water splitting performance. The synthetic strategy to incorporate well‐defined nitrogen‐doped carbon dots (N‐CDs) arrays onto a zeolitic imidazolate framework‐8 (ZIF‐8) anchored on ZnO 1D nanostructures allows a facile unification of different components which subsequently plays a decisive role in improving the material's PEC water splitting performance. Simple extension of such strategies is expected to offer significant advantages for the preparation of CD‐based heterostructures for photo(electro)catalytics and other related applications.},
doi = {10.1002/smll.201902771},
journal = {Small},
number = 40,
volume = 15,
place = {United States},
year = {Mon Aug 12 00:00:00 EDT 2019},
month = {Mon Aug 12 00:00:00 EDT 2019}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 55 works
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Figures / Tables:

Scheme 1 Scheme 1: Schematic illustrations of (a) ZnO nanotubes, (b) ZnO nanotubes with ZIF-8, and (c) ZnO nanotubes with N-CD embedded ZIF-8.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.