Enhanced photocatalytic urea oxidation under neutral medium by reduced graphene oxide coated TiO2 nanoparticles

Nowadays, fertilizers are used to boost crop production. Nitrogenous fertilizers are assimilated as nitrate. Unfortunately, 60–70% of nitrogen is lost due to different leaching processes. Photocatalytic urea oxidation is now emerging as a new methodology. Nitrate conversion is favorable under alkali...

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Bibliographic Details
Published in:Catalysis communications 2023-06, Vol.179, p.106690, Article 106690
Main Authors: Soni, Palak, Pal, Bonamali, Das, Raj Kumar
Format: Article
Language:English
Subjects:
Hybrid composites
Nitrate production
Photocatalytic degradation
Sustainable agriculture
Urea oxidation
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Summary:Nowadays, fertilizers are used to boost crop production. Nitrogenous fertilizers are assimilated as nitrate. Unfortunately, 60–70% of nitrogen is lost due to different leaching processes. Photocatalytic urea oxidation is now emerging as a new methodology. Nitrate conversion is favorable under alkaline pH. However, it can subsequently cause deprotonation of ammonium ions to result ammonia leaching. In this report, efficiencies of bare and RGO loaded TiO2 were examined. In the presence of NaF, the nanocomposite possesses a 9.8(1)% nitrate yield, significantly greater than the other analogous reactions. Such observation will be helpful in developing new methodologies to afford sustainable agriculture. [Display omitted] •The photocatalytic urea oxidation activities were studied under various conditions.•With NaF the ammonia leaching was significantly lower compare to alkaline medium.•WIth NaF the nitrate yield was substantially higher than the other conditions.•This represent a new and milder methodology towards sustainable agriculture.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2023.106690