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metadata.artigo.dc.title: Biochar-graphene oxide composite is efficient to adsorb and deliver copper and zinc in tropical soil
metadata.artigo.dc.creator: Carneiro, Jefferson Santana da Silva
Leite, Dagna Ariele da Costa
Castro, Gustavo Mesquita de
Franca, José Romão
Botelho, Lívia
Soares, Jenaina Ribeiro
Oliveira, Juliano Elvis de
Melo, Leônidas Carrijo Azevedo
metadata.artigo.dc.subject: Metal adsorption
Biochar-based fertilizers
Slow-release fertilizers
Tropical soil
Nutrient use efficiency
Food biofortification
metadata.artigo.dc.publisher: Elsevier 2022
metadata.artigo.dc.identifier.citation: CARNEIRO, J. S. da S. et al. Biochar-graphene oxide composite is efficient to adsorb and deliver copper and zinc in tropical soil. Journal of Cleaner Production, [S.l.], p. 1-13, Aug. 2022. DOI: 10.1016/j.jclepro.2022.132170.
metadata.artigo.dc.description.abstract: Highly weathered soils have low micronutrient availability and very low efficiency for most soluble fertilizers. In this article the effect of poultry litter biochar-graphene oxide composite (PLB-GO) as a novel adsorbent for copper (Cu) and zinc (Zn) was evaluated, as well as its fertilizing effects on plant growth, nutrient use efficiency and soil fertility. In order to do so, poultry litter biochar (PLB) and PLB-GO were produced, characterized and evaluated by isotherm adsorption and kinetics studies regarding their Cu and Zn sorption and desorption properties. Cu and Zn loaded on PLB and PLB-GO as biochar-based fertilizers (BBF) were also evaluated. PLB-GO showed 16.2% and 17.7% higher Cu and Zn adsorption capacity, respectively, than pristine PLB, and in both cases <0.5% of the sorbed metal content was released in water. Plant effects on growth and nutrient uptake were, in general, higher or similar to the results obtained for sulfates. The application of PLB increased Cu availability while PLB-GO increased Zn availability after cultivation, even after increasing nutrient uptake and being little soluble in water. Addition of small amounts (≤0.5%) of GO in biochar has potential to increase its properties to retain micronutrients and enhance the fertilizer use effectiveness in highly weathered soils.
metadata.artigo.dc.language: en_US
Appears in Collections:DEG - Artigos publicados em periódicos
DFI - Artigos publicados em periódicos

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