Sun-powered Wastewater Treatment with a Hydrogen Bonus: Unveiling the Potential of Zno-Tio2 Nanoparticles

Wastewater and drinking water that include heavy metals pose a serious hazard to the environment and all land, air, and water-based life. Wastewater treatment employs various methods, including cutting-edge nanomaterials and biological techniques like photocatalysis. This article introduces ZnO-TiO...

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Bibliographic Details
Published in:Waste and biomass valorization 2024-11, Vol.15 (11), p.6281-6291
Main Authors: Shingare, Shyamala Prakash, Kanfade, Lekhram B., Mane, Vijay B., Kumbhar, Gajanan B., Suryawanshi, Mahesh A.
Format: Article
Language:English
Subjects:
Agrochemicals
Algae
Biodegradation
Biodiesel fuels
Biofuels
Bioremediation
Catalysis
Catalytic activity
Catalytic converters
Core-shell structure
Drinking behavior
Drinking water
Engineering
Environment
Environmental degradation
Environmental Engineering/Biotechnology
Heavy metals
Hydrogen
Hydrogen evolution reactions
Hydrogen production
Immobilization
Industrial Pollution Prevention
Mineral fertilizers
Nanomaterials
Nanoparticles
Nanotechnology
Nanowires
Nutrients
Original Paper
Photocatalysis
Photocatalysts
Renewable and Green Energy
Titanium dioxide
Waste Management/Waste Technology
Wastewater treatment
Water treatment
Zinc oxide
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Summary:Wastewater and drinking water that include heavy metals pose a serious hazard to the environment and all land, air, and water-based life. Wastewater treatment employs various methods, including cutting-edge nanomaterials and biological techniques like photocatalysis. This article introduces ZnO-TiO 2 nanoparticles for wastewater treatment through algal bioremediation. Different photocatalytic genres are explored, showcasing the potential for solar-driven hydrogen production from water with ZnO-TiO 2 -supported photocatalysts interacting comprehensively with pollutant molecules. Nano photocatalysts are applied using diverse techniques: creating hydrogel structures for immobilization, electrospinning for nanocatalyst treatment, and forming core–shell structures to enhance catalytic activity. Addressing environmental degradation, recent research prioritizes catalysis for converting biomass into eco-friendly fuels. The high cost of algae-based biodiesel is linked to substantial water and inorganic fertilizer demands. This study utilizes Scenedesmus sp DDVG I and Chlorella sp for low-nitrogen wastewater bioremediation. It explores hydrogen generation using renewable electricity and introduces FeCO-NiCoP nanowire arrays to enhance Hydrogen Evolution Reaction (HER) performance. Matlab software evaluates the proposed task, highlighting advancements in sustainable wastewater treatment and efficient hydrogen production. The findings showed that with efficient wastewater treatment, harvesting efficiency increased by 99.58%. The outcomes show that using microalgae is a sustainable strategy since it increases the effectiveness of removing nutrients from wastewater. Graphical Abstract
ISSN:1877-2641
1877-265X
DOI:10.1007/s12649-024-02570-9