TY - JOUR
T1 - Au-Pd bimetallic nanoparticles embedded highly porous Fenugreek polysaccharide based micro networks for catalytic applications
AU - Mallikarjuna, K.
AU - Bathula, Chinna
AU - Dinneswara Reddy, G.
AU - Shrestha, Nabeen K.
AU - Kim, Haekyoung
AU - Noh, Yong Young
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - Currently, metallic nanoparticles possessing versatile heterogeneous catalytic functionality such as in hydrogenation, water splitting, hydrogen production and CO2 reduction for global pollution remediation have been paid great attentions due to their high chemical stability, superior activity and unique electrical and optical properties. However, the gradual degradation of their catalytic activity on multiple usage limits the monometallic nanoparticles to industrial applications. Herein, we fabricated the highly porous fenugreek polysaccharide assisted green synthesis of Au–Pd nanostructures for heterogeneous catalytic hydrogenation of the industrial usable highly toxic 4-nitrophenol to the medicinally useful 4-aminophenol. The aqueous method developed in the present work is environmentally friendly, simple and low-cost procedure. The fabricated bimetallic porous Au–Pd nanostructures characterized using SEM, TEM, UV–Vis, XRD, XPS and FTIR analysis. The catalytic activity of the synthesized nanostructures was studied for the heterogeneous hydrogenation of 4-nitrophenol to 4-aminophenol in presence of NaBH4, and the catalytic kinetic for the hydrogenation was analyzed via an UV–Vis spectrometer.
AB - Currently, metallic nanoparticles possessing versatile heterogeneous catalytic functionality such as in hydrogenation, water splitting, hydrogen production and CO2 reduction for global pollution remediation have been paid great attentions due to their high chemical stability, superior activity and unique electrical and optical properties. However, the gradual degradation of their catalytic activity on multiple usage limits the monometallic nanoparticles to industrial applications. Herein, we fabricated the highly porous fenugreek polysaccharide assisted green synthesis of Au–Pd nanostructures for heterogeneous catalytic hydrogenation of the industrial usable highly toxic 4-nitrophenol to the medicinally useful 4-aminophenol. The aqueous method developed in the present work is environmentally friendly, simple and low-cost procedure. The fabricated bimetallic porous Au–Pd nanostructures characterized using SEM, TEM, UV–Vis, XRD, XPS and FTIR analysis. The catalytic activity of the synthesized nanostructures was studied for the heterogeneous hydrogenation of 4-nitrophenol to 4-aminophenol in presence of NaBH4, and the catalytic kinetic for the hydrogenation was analyzed via an UV–Vis spectrometer.
KW - 4-nitrophenol to 4-aminophenol
KW - Gold-palladium nanoparticles
KW - Green synthesis
KW - Hydrogenation
UR - http://www.scopus.com/inward/record.url?scp=85059161084&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2018.12.137
DO - 10.1016/j.ijbiomac.2018.12.137
M3 - Article
C2 - 30572053
AN - SCOPUS:85059161084
SN - 0141-8130
VL - 126
SP - 352
EP - 358
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -