Anisotropic ZnO nanostructures and their nanocomposites as an advanced platform for photocatalytic remediation

Swati Verma, Sherif A. Younis, Ki Hyun Kim, Fan Dong

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

In pursuit of advanced heterogeneous photocatalysts, ZnO has emerged as a promising option for solar-driven heterogeneous photocatalyst with many advantageous properties (e.g., optical band structure and electronic properties). However, as the efficacy of such system can also be limited by a number of demerits (e.g., fast recombination of charge carriers and limited photon absorption), considerable efforts are needed for its effective and practical scale-up. This article provides a detailed literature review of the synthesis and modification of ZnO nanostructures with tuned band structures and controllable morphologies for solar light harvesting. The potential of anisotropic ZnO nanostructures is also discussed with respect to the photocatalytic degradation of organic/inorganic water pollutants. Further, the role of various metal dopants is discussed for the enhancement of photocatalytic activity along with evaluation of their photocatalytic performances under UV–visible or solar irradiation. Finally, our discussions are expanded to describe the prospects of developed ZnO nano-photocatalysts for real-world applications with respect to light-harvesting efficiency and mechanical stability.

Original languageEnglish
Article number125651
JournalJournal of Hazardous Materials
Volume415
DOIs
StatePublished - 2021 Aug 5
Externally publishedYes

Keywords

  • Controllable morphologies
  • Performance evaluation
  • Photocatalysis
  • Zinc oxide

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