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Title: Synthesis, characterization of porphyrin and CdS modified spherical shaped SiO2 for Reactive Red 120 degradation under direct sunlight
Authors: Krishnakumar, Balu 
Ravikumar, S.
Pandiyan, V. 
Nithya, V.
Sylvestre, S.
Sivakumar, P.
Surya, C.
John, N. Agnel Arul
Sobral, Abílio J. F. N. 
Keywords: SiO2; CdS; TPP; TPAPP; Sunlight; RR 120
Issue Date: 2020
Project: SFRH/BPD/86971/2012 
Serial title, monograph or event: Journal of Molecular Structure
Volume: 1210
Abstract: Initially, sphere shaped SiO2 was explored by adopting simple sol-gel method without any template. Later, the sphere like SiO2 was modified with cadmium sulfide (CdS) semiconductor and porphyrins. The formation of composites (CdS/SiO2-porphyrins) brought out by diverse characterization techniques that include XRD, Raman, FT-IR, FE-SEM, EDS, DRS and PL measurements. The photocatalytic activity of CdS/SiO2 was slightly influenced by porphyrins such as meso-tetra-phenyl-porphyrin (TPP) and 5,10,15,20-meso-tetra-(para-amino)-phenyl-porphyrin (TPAPP). The mechanism which has been proposed for Reactive Red 120 (RR 120) degradation by CdS/SiO2- porphyrins under sunlight.
ISSN: 00222860
DOI: 10.1016/j.molstruc.2020.128021
Rights: openAccess
Appears in Collections:I&D CQC - Artigos em Revistas Internacionais

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