Provider: Ingenta Connect
Database: Ingenta Connect
Content: application/x-research-info-systems
TY - ABST
AU - Murugan, Eagambaram
AU - Rangasamy, Rajmohan
AU - Jebaranjitham, J. Nimita
TI - Immobilization of TiO2 and TiO2[Au] Nanoparticles Onto the Poly(4-vinylpyridine) Matrix and Their Photocatalysis
JO - Advanced Science Letters
PY - 2012-03-15T00:00:00///
VL - 6
IS - 1
SP - 250
EP - 256
KW - REUSE
KW - POLY(4-VINYLPYRIDINE)
KW - TIO2
KW - DEGRADATION
KW - NANOPARTICLE
KW - IMMOBILIZATION
KW - TIO2–
KW - AU
KW - METHYL ORANGE
KW - PHOTOCATALYST
N2 - Two different types of bead-shaped efficient/stable heterogeneous nanoparticle photocatalysts were synthesized by immobilization of TiO2 and TiO2–Au nanoparticles individually onto the common insoluble crosslinked poly(styrene)-co-poly(4-vinylpyridine) bead
matrix. The first catalyst was prepared by the immobilization of TiO2 on insoluble crosslinked poly(styrene)-co-poly(4-vinylpyridine) beads (P4VP) through a three-step procedure, viz., (i) preparation of crosslinked poly(styrene)-co-poly(4-vinylpyridine) beads, (ii) complexation
of TiCl4 with pyridine moiety of P4VP beads and (iii) hydrolysis of TiCl4 and thus obtained PS–P4VP–TiO2NPs. Similarly, the second catalyst, viz., TiO2–Au based bimetallic heterogeneous nanoparticle photocatalyst was prepared by
the immobilization of Au NPs onto the P4VP–TiO2 catalyst using HAuCl4 as precursor and followed by reduction in aqueous sodium borohydride solution. These two different heterogeneous nanoparticle photocatalysts viz., PS–P4VP–TiO2NPs and PS–P4VP–TiO2[Au]NPs
were characterized by FT-IR, SEM, HRTEM and EDS analyses and proves that the respective nanoparticle photocatalysts were immobilized onto their matrices. The photocatalytic efficiency of these catalysts was examined by conducting the degradation of methyl orange and the obtained results shows
excellent activity. The stability and recycle/reusability was also inspected and observed to be good.
UR - https://www.ingentaconnect.com/content/asp/asl/2012/00000006/00000001/art00037
M3 - doi:10.1166/asl.2012.2164
UR - https://doi.org/10.1166/asl.2012.2164
ER -