Faceted Crystal Nanoarchitectonics of Organic-Inorganic 3D-Printed Visible-Light Photocatalysts

Jose Muñoz, Daniel Rojas, Martin Pumera

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Facet-dependent photocatalytic properties are intrinsic characteristics of several inorganic semiconductors. Herein, faceted crystal engineering and 3D-printing technology have been combined for the fabrication of the first organic-inorganic 3D-printed visible-light photocatalyst prototypes. As a proof-of-concept, two facet crystal nanoarchitectonics have been devised by in situ synthesizing Ag3PO4nanoarchitectures with tunable─amorphous and faceted─shapes upon 3D-printed graphene/polylactic acid (G/PLA) nanocomposite scaffolds through a green wet-chemistry approach. The facet-dependent photoactivity performance of the resulting 3D-printed photocatalysts under visible light irradiation has been explored toward (i) the photodegradation of environmental pollutants (i.e., rhodamine B) and (ii) the indirect photoelectrochemical oxygen evolution from water splitting. Overall, the 3D-printed G/PLA carrying facet-Ag3PO4nanoarchitectures has displayed enhanced photocatalytic and photoelectrochemical activity when compared to its amorphous-Ag3PO4counterparts. Accordingly, the integration of inorganic semiconductors across low-cost 3D-printed G/PLA scaffolds under crystallization control represents a potential nanotechnological strategy toward the next generation of highly efficient organic-inorganic 3D-printed solar-light-driven photocatalysts, which might be mass-produced in a sustainable way, anywhere at any time.

Original languageEnglish
Pages (from-to)3252-3258
Number of pages7
JournalACS Applied Energy Materials
Issue number3
Publication statusPublished - 2022 Mar 28

Bibliographical note

Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Electrical and Electronic Engineering
  • Electrochemistry


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