Green synthesis of palladium nanoparticles and investigation of their catalytic activity for methylene blue, methyl orange and rhodamine B degradation by sodium borohydride

(001)-TiO2 nanosheets loaded on BiOI improve carrier separation and enhance the photocatalytic activity

“…The solution was then exposed to light, and 3 mL of solution was taken every 10 min and centrifuged to remove particles. The concentration of the RhB was analyzed at 553 nm using a UV-vis spectrophotometer, and the following equation was used to estimate photocatalytic degradation (%): 21,22 Degradation efficiency (%) = (1 − C t / C 0 ) × 100%where C t represents the RhB concentration after being irradiated for t time, and C 0 is the initial RhB concentration. Radical scavenging experiments were conducted to identify the active species involved in the photodegradation reaction.…”

“…The solution was then exposed to light, and 3 mL of solution was taken every 10 min and centrifuged to remove particles. The concentration of the RhB was analyzed at 553 nm using a UV-vis spectrophotometer, and the following equation was used to estimate photocatalytic degradation (%): 21,22 Degradation efficiency (%) = (1…”

Synthesis and Twin Polymerization of Si(OCH2py)4 for Nitrogen‐containing Carbon Materials

“…A k value of À 0.083 min À 1 was determined for the methylene blue reduction using Pd@C_3 as catalyst, which is at the moderate to lower end of the value range for supported Pd NPs reported in literature. [78][79][80][81][82][83][84][85] Additionally, the Pd-NP-catalyzed decomposition of methyl orange using Pd@C_3 was investigated with an analogous experimental setup. As shown in Figure 12a, the intense absorption at 465 nm observed at the beginning of the catalytic experiment decreased within 80 min to almost 0.…”

“…A k value of À 0.066 min À 1 was determined, which is, similar to the methylene blue reduction, at the lower end of the value range for supported Pd NPs. [78][79][80][81][82][83][84][85] Since the data points in Figure 12b do not lie on a straight line, the slope of the fitted line has to be understood as a rough estimate of the apparent reaction rate constant. Obviously, the decomposition of methyl orange in presence of Pd@C_3 is a more complicated reaction than the reduction of methylene blue.…”

Plant‐Derived Nanomaterials for Targeted Biological Applications and Smart Agriculture

“…Other metal and metal oxide nanomaterials Many more plant-derived metal and metal oxide nanoparticles have been used for biological, environmental, and industrial applications. For instance, Nickel oxide nanoparticles, [88] Platinum nanoparticles, [89] Palladium nanoparticles, [90] Aluminium oxide nanoparticles, [91] Silica nanoparticles, [92] Magnesium oxide nanoparticles, [93] and Cobalt nanoparticles. [94] Detailed discussion of these plant-derived nanoparticles is beyond the scope of this review article.…”