Matches in SemOpenAlex for { <https://semopenalex.org/work/W4289202467> ?p ?o ?g. }
- W4289202467 endingPage "126579" @default.
- W4289202467 startingPage "126579" @default.
- W4289202467 abstract "Zero valent arsenic nanoparticles (As(0)) in two different size ranges such as 55 ± 8 and 61 ± 9 nm were prepared by reducing As(III) using NaBH 4 , and designated as As1 and As2. Galvanic replacement reaction (GRR) of As(0) was employed for the synthesis of Ag nanoparticles (AgNPs) in two different size ranges. The as-prepared AgNPs i.e. AgNP1 and AgNP2 were then converted to heterogeneous catalyst by adsolubilizing them onto surfactant-modified silica (SMS) surface, and the immobilized AgNPs were designated as Ag1-SMS and Ag2-SMS, respectively. The AgNPs thus formed in both homogeneous and heterogeneous phases were utilized as catalyst for 4-nitrophenol (4-NP) reduction in borohydride medium. The homogeneous catalysts were found to be more efficient compared to the supported catalysts. As for example, the complete reduction of 4-NP using homogeneous Ag(0) catalyst was achieved within 12 min with a first order rate constant of 0.1513 min −1 using AgNP1 at a dose of 1.86 mg/L. On the other hand, when it was immobilized on SMS surface it showed a rate constant 0.0259 min −1 at a dose of 9 mg/L. The size effect of the AgNPs was also realized in both homogeneous and heterogeneous catalytic reactions. At a constant catalyst dose (in terms of Ag), smaller sized particles showed higher reaction rate compared to the larger particles. The TON and TOF as calculated for all the catalysts showed that homogeneous AgNPs were more efficient (>24 times) than the AgNPs when they are immobilized on SMS surface. • Ag(0) nanoparticles (AgNPs) were prepared from As(0) by galvanic replacement. • AgNPs were further adsolubilized on surfactant-modified silica (SMS) support. • AgNP sols and Ag(0) supported on SMS were deployed as catalyst for 4-NP reduction. • Ag sol catalysts were more (∼24 times) efficient than solid supported Ag catalysts. • Smaller sized Ag catalyst was found to be more efficient than the larger particles." @default.
- W4289202467 created "2022-08-01" @default.
- W4289202467 creator A5054253524 @default.
- W4289202467 creator A5070948768 @default.
- W4289202467 creator A5071784294 @default.
- W4289202467 creator A5084413661 @default.
- W4289202467 date "2022-10-01" @default.
- W4289202467 modified "2023-09-29" @default.
- W4289202467 title "Use of surfactant bilayer modified silica for evolution and application of size variable solid Ag nanoparticle catalyst" @default.
- W4289202467 cites W1920725716 @default.
- W4289202467 cites W1976259158 @default.
- W4289202467 cites W1977627006 @default.
- W4289202467 cites W1981921119 @default.
- W4289202467 cites W1993669208 @default.
- W4289202467 cites W1999571221 @default.
- W4289202467 cites W2022878558 @default.
- W4289202467 cites W2027083783 @default.
- W4289202467 cites W2036677456 @default.
- W4289202467 cites W2071472631 @default.
- W4289202467 cites W2098313552 @default.
- W4289202467 cites W2109781996 @default.
- W4289202467 cites W2127807318 @default.
- W4289202467 cites W2137161072 @default.
- W4289202467 cites W2587447569 @default.
- W4289202467 cites W2614387990 @default.
- W4289202467 cites W2757531926 @default.
- W4289202467 cites W2765757061 @default.
- W4289202467 cites W2775262351 @default.
- W4289202467 cites W2836434189 @default.
- W4289202467 cites W2947998513 @default.
- W4289202467 cites W2969250131 @default.
- W4289202467 cites W3037439791 @default.
- W4289202467 cites W3121116812 @default.
- W4289202467 doi "https://doi.org/10.1016/j.matchemphys.2022.126579" @default.
- W4289202467 hasPublicationYear "2022" @default.
- W4289202467 type Work @default.
- W4289202467 citedByCount "0" @default.
- W4289202467 crossrefType "journal-article" @default.
- W4289202467 hasAuthorship W4289202467A5054253524 @default.
- W4289202467 hasAuthorship W4289202467A5070948768 @default.
- W4289202467 hasAuthorship W4289202467A5071784294 @default.
- W4289202467 hasAuthorship W4289202467A5084413661 @default.
- W4289202467 hasConcept C121332964 @default.
- W4289202467 hasConcept C127413603 @default.
- W4289202467 hasConcept C13965031 @default.
- W4289202467 hasConcept C147789679 @default.
- W4289202467 hasConcept C148898269 @default.
- W4289202467 hasConcept C155672457 @default.
- W4289202467 hasConcept C161790260 @default.
- W4289202467 hasConcept C171250308 @default.
- W4289202467 hasConcept C175583648 @default.
- W4289202467 hasConcept C178790620 @default.
- W4289202467 hasConcept C185592680 @default.
- W4289202467 hasConcept C186423591 @default.
- W4289202467 hasConcept C192157962 @default.
- W4289202467 hasConcept C192562407 @default.
- W4289202467 hasConcept C2778931688 @default.
- W4289202467 hasConcept C31499863 @default.
- W4289202467 hasConcept C41625074 @default.
- W4289202467 hasConcept C42360764 @default.
- W4289202467 hasConcept C55493867 @default.
- W4289202467 hasConcept C58226133 @default.
- W4289202467 hasConcept C62520636 @default.
- W4289202467 hasConcept C66882249 @default.
- W4289202467 hasConcept C93391505 @default.
- W4289202467 hasConcept C97355855 @default.
- W4289202467 hasConceptScore W4289202467C121332964 @default.
- W4289202467 hasConceptScore W4289202467C127413603 @default.
- W4289202467 hasConceptScore W4289202467C13965031 @default.
- W4289202467 hasConceptScore W4289202467C147789679 @default.
- W4289202467 hasConceptScore W4289202467C148898269 @default.
- W4289202467 hasConceptScore W4289202467C155672457 @default.
- W4289202467 hasConceptScore W4289202467C161790260 @default.
- W4289202467 hasConceptScore W4289202467C171250308 @default.
- W4289202467 hasConceptScore W4289202467C175583648 @default.
- W4289202467 hasConceptScore W4289202467C178790620 @default.
- W4289202467 hasConceptScore W4289202467C185592680 @default.
- W4289202467 hasConceptScore W4289202467C186423591 @default.
- W4289202467 hasConceptScore W4289202467C192157962 @default.
- W4289202467 hasConceptScore W4289202467C192562407 @default.
- W4289202467 hasConceptScore W4289202467C2778931688 @default.
- W4289202467 hasConceptScore W4289202467C31499863 @default.
- W4289202467 hasConceptScore W4289202467C41625074 @default.
- W4289202467 hasConceptScore W4289202467C42360764 @default.
- W4289202467 hasConceptScore W4289202467C55493867 @default.
- W4289202467 hasConceptScore W4289202467C58226133 @default.
- W4289202467 hasConceptScore W4289202467C62520636 @default.
- W4289202467 hasConceptScore W4289202467C66882249 @default.
- W4289202467 hasConceptScore W4289202467C93391505 @default.
- W4289202467 hasConceptScore W4289202467C97355855 @default.
- W4289202467 hasFunder F4320322724 @default.
- W4289202467 hasLocation W42892024671 @default.
- W4289202467 hasOpenAccess W4289202467 @default.
- W4289202467 hasPrimaryLocation W42892024671 @default.
- W4289202467 hasRelatedWork W1511307558 @default.
- W4289202467 hasRelatedWork W19236010 @default.
- W4289202467 hasRelatedWork W2053382345 @default.
- W4289202467 hasRelatedWork W2184158116 @default.