Green synthesis of Ln2Zr2O7 (Ln = Nd, Pr) ceramic nanostructures using extract of green tea via a facile route and their efficient application on propane-selective catalytic reduction of NOx process

Synthesis of new nanocomposite based on nanoceramic and mono substituted polyoxometalate, PMo11Cd@MnFe2O4, with superior catalytic activity for oxidative desulfurization of real fuel

“…As such, MnFe 2 O 4 FT-IR spectrum (Figure 1(c)) depicts two firm peaks in the range between 400-610 cm −1 which are assigned to stretching M-O bond for Mn (II)-O and Fe (III)-O respectively. [22] The observed peaks for PMo 11 Cd@MnFe 2 O 4 are displayed in Figure 1 ( [28]. Because of substituting Cd atom in the cluster, the peaks for PMo 11 Cd (Figure 2(b)) display some shifts and additional reflections compared to the pure PMo 12 pattern.…”

“…Due to its perfect magnetic properties, it could help to recover synthesized nanocatalysts by a simple magnetic field. [22,23] In our study, MnFe 2 O 4 has been exploited as a substrate for immobilizing Keggin type POM to overcome the low surface-volume ratio and better recycling. [22] 2 | EXPERIMENTAL…”

Effect of zirconia on improving NOx reduction efficiency of Nd2Zr2O7 nanostructure fabricated by a new, facile and green sonochemical approach

“…Ghasemian et al introduced ion-exchanged clinoptilolite zeolite upon propane-SCR-NO x [37] . Our research group examined the usage of Ln 2 Zr 2 O 7 (Ln = Nd, Pr) ceramics in role of catalytic materials to eliminate NO x [38] .…”

“…The synthesis method has been demonstrated to have notable impact on attribute and performance of nanoscale compounds [24] . In our previous work, Nd 2 Zr 2 O 7 sample produced via combustion path and checked its performance on NO x abatement [38] . Here, to examine the role of synthesis pathway, the activity of Nd 2 Zr 2 O 7 samples produced by two different pathways (sonochemical and combustion) on propane-SCR-NO x is compared.…”

Evaluation of free water removal from different sludge by solar energy utilization

“…The production of Dy 2 Sn 2 O 7 and Dy 2 Ce 2 O 7 by the juice of Punica granatum as nanostructural photocatalyst was used for removal and destruction of organic pollutants and methylene blue contaminants [26,27]. In another study green tea extract (GrTeEx), Ln 2 Zr 2 O 7 ceramic nanostructures, and Pure Ho 2 O 3 photocatalysts were used for pollutant reduction [28,29], also Neodymium oxide and pure neodymium zirconate nanostructures were offered for the degradation of rhodamine under the UV light and eosin contaminant [30,31].…”