Integration of biological control with engineered heterojunction nano-photocatalysts for sustainable and effective management of water hyacinth weed

Aquib Jawed, Prasenjit Kar, Rahul Verma, Komal Shukla, P. Hemanth, Vijay Kumar Thakur*, Lalit M. Pandey*, Raju Kumar Gupta*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

2 Citations (Scopus)

Abstract

Water hyacinth (Eichhornia crassipes) is a noxious weed that has gained global attention because of its rapid spread and congested development, causing allergies in navigation, irrigation, and challenges navigation, irrigation, and aquatic life challenges. Different physical, chemical, and biological methods are being used to control water hyacinth. However, cost, duration, toxicity, resurgence, and water pollution remain a bottleneck. Integrated controls are reported to be the most cost-effective choice. The generation of reactive oxygen species (ROS) by chemical herbicides is the primary mechanism of action, which damages cell membranes leading to the inactivation of water hyacinth. The engineered heterojunction photocatalysts efficiently generate ROS under visible light and can be applied as alternatives to herbicides. In addition, these photocatalysts offer the advantage of the simultaneous remediation of wastewater as well. This report examines current research activity in the subject, focusing on the scientific and technological opportunities by visible light photocatalysts (VLP). The preparation of floating photocatalysts via composite granules or porous structures has been highlighted to be utilized to control aquatic weeds. The mechanisms of photocatalytic activity of VLP and inactivation of water hyacinth have been discussed. The integrated photocatalytic and biological controls are proposed for the sustainable and effective management of water hyacinth.

Original languageEnglish
Article number106976
JournalJournal of Environmental Chemical Engineering
Volume10
Issue number1
Early online date11 Dec 2021
DOIs
Publication statusPrint publication - Feb 2022

Keywords

  • Bioherbicides
  • Floating beads
  • Fungal pathogens
  • Heterojunction photocatalysts
  • Reactive oxygen species
  • Water hyacinth

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