4 documents found, page 1 of 1
Comparative performance and ecotoxicity assessment of Y2(CO3)3, ZnO/TiO2, and F...
Salazar, H.; Martins, P. M.; Batista, Daniela Miranda; Shejale, K. P.; Sharma, R. K.; Krishnapriya, R.; Ferdov, S.; Botelho, GabrielaThe application of nanomaterials to remove arsenic (As) from the water represents one of the 21 most promising remediation methods nowadays. In this study, three active materials, including 22 Y2(CO3)3), ZnO/TiO2, and Fe3O4, with different structural and morphological properties, were 23 evaluated for their As(V) adsorption capacity in contaminated water. Thus, the adsorption 24 behaviour was evaluated, includi...
Improved electrochemical performance of LiMn1.5M0.5O4 (M=Ni, Co, Cu) based cath...
Gonçalves, Renato Ferreira; Sharma, P.; Ram, P.; Ferdov, S.; Silva, Maria Manuela; Costa, Carlos Miguel Silva; Singhal, R.,; Sharma, R. K.LiMn2O4 and LiMn1.5M0.5O4 (M: Ni, Cu, Co) doped particles have been synthetized by sol-gel. Particles between 50 and 200 nm were obtained with the cubic spinel structure of the LiMn2O4. Ni doping shows a more efficient substitution in the octahedral 16d site, replacing the Mn3+ thorn ion, improving the important drawback of poor cycling behavior of LiMn2O4. The average pore size decrease with the addition of th...
Highly efficient removal of fluoride from aqueous media through polymer composi...
Nunes-Pereira, J.; Lima, R.; Choudhary, G.; Sharma, P. R.; Ferdov, S.; Botelho, Gabriela; Sharma, R. K.; Lanceros-Méndez, S.Different aluminum and calcium based particles, montmorillonite (MMT), zeolites (NaY), bayerite (BAY) and hydroxyapatite (CaHAp), were compared and evaluated for water defluorination. The effect of parameters such as temperature of the medium, concentration (mass of adsorbent), reaction time and pH on the defluorination capacity were studied for the particles with best performance. MMT and CaHAp adsorbents show...
Poly(vinylidene fluoride) composites with carbon nanotubes decorated with metal...
Nunes-Pereira, J.; Sharmac, P.; Fernandes, L. C.; Oliveira, J.; Moreira, J. A.; Sharma, R. K.; Lanceros-Méndez, S.Polymer composites based on poly(vinylidene fluoride) (PVDF) filled with carbon nanotubes (CNT) decorated with metal nanoparticles (NP) of cobalt, nickel, platinum and palladium have been produced. The CNT nano fillers decorated with metal NP were synthesized by a modified wet impregnation method and their structural, morphological and thermal properties were evaluated. The metal NP ranging from 2 to 10 nm were...