Highly Efficient Visible Light Active Doped ZnO Photocatalysts for the Treatment of Wastewater Contaminated with Dyes and Pathogens of Emerging Concern

Saima Aftab, Tayyaba Shabir, Afzal Shah, Jan Nisar, Iltaf Shah, Haji Muhammad, Noor S. Shah

Research output: Contribution to journalReview articlepeer-review

33 Citations (Scopus)

Abstract

Water is obligatory for sustaining life on Earth. About 71% of the Earth’s surface is covered in water. However, only one percent of the total water is drinkable. The presence of contaminants in wastewater, surface water, groundwater, and drinking water is a serious threat to human and environmental health. Their toxic effects and resistance towards conventional water treatment methods have compelled the scientific community to search for an environmentally friendly method that could efficiently degrade toxic contaminants. In this regard, visible light active photocatalysts have proved to be efficient in eliminating a wide variety of water toxins. A plethora of research activities have been carried out and significant amounts of funds are spent on the monitoring and removal of water contaminants, but relatively little attention has been paid to the degradation of persistent water pollutants. In this regard, nanoparticles of doped ZnO are preferred options owing to their low recombination rate and excellent photocatalytic and antimicrobial activity under irradiation of solar light. The current article presents the roles of these nanomaterials for wastewater treatment from pollutants of emerging concern.

Original languageEnglish
Article number486
JournalNanomaterials
Volume12
Issue number3
DOIs
Publication statusPublished - Feb 1 2022

Keywords

  • Antimicrobial activity
  • Doped ZnO
  • Visible light active photocatalyst
  • Wastewater treatment
  • Water contaminants

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Materials Science

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