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

Journal Article · · Small
 [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)
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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) are yet to be explored as photosensitizers due to the challenges associated with the fabrication of well-arrayed CDs with any other photocatalytic heterostructures. In the present study, a unique combination of Metal-organic frameworks (MOFs) decorated Zinc Oxide (ZnO) one-dimensional (1D) nanostructures as host and CDs as guest species have been explored on account of its potential applications in photoelectrochemical (PEC) water splitting performance. Our synthetic strategy to incorporate well-defined nitrogen-doped carbon dots (N-CDs) array onto 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 CDs-based heterostructures for photo(electro)catalytic and other related applications.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1558062
Alternate ID(s):
OSTI ID: 1556795
Report Number(s):
LA-UR--19-20825
Journal Information:
Small, Journal Name: Small Journal Issue: 40 Vol. 15; ISSN 1613-6810
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Carbon Quantum Dots As Antibacterial Photosensitizers and Their Polymer Nanocomposite Applications journal November 2019
Understanding the origin of bandgap problem in transition and post-transition metal oxides journal September 2019
Understanding the origin of bandgap problem in transition and post-transition metal oxides text January 2018

Figures / Tables (7)

Scheme 1(p. 16)figure Scheme 1
Figure 1(p. 17)figure Figure 1
Figure 2(p. 18)figure Figure 2
Figure 3(p. 19)figure Figure 3
Figure 4(p. 20)figure Figure 4
Figure 5(p. 21)figure Figure 5
Figure 6(p. 22)figure Figure 6

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77 NANOSCIENCE AND NANOTECHNOLOGY
Material Science