Rhodium-calix[4]pyrrole and rhodium-tetraphenyl porphyrin: preparation, surface grafting and their catalytic application in nitro-benzene reduction

2018 ◽  
Vol 47 (35) ◽  
pp. 12353-12361 ◽  
Author(s):  
K. Anjali ◽  
M. Ahmed ◽  
J. Christopher ◽  
A. Sakthivel

Rhodium containing macromolecules calix[4]pyrrole (RhCP) and tetraphenyl porphyrin (RhTPP) were prepared, grafted on functionalized SBA-15 and demonstrated as promising catalysts for nitro-arene reduction.

RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 25248-25257 ◽  
Author(s):  
Sreenavya A. ◽  
Baskaran T. ◽  
Ganesh V. ◽  
Sharma D. ◽  
Nagendra Kulal ◽  
...  

The framework ruthenium-containing nickel (NiRu) hydrotalcite (HT)-type materials were prepared for the first time without organics and the resultant materials were found to be promising catalysts for nitro-benzene reduction.


2014 ◽  
Vol 18 (10) ◽  
pp. 1305-1322 ◽  
Author(s):  
Zheng Wu ◽  
Yi Wang

2017 ◽  
Vol 21 (24) ◽  
Author(s):  
William J. Cloete ◽  
Bert Klumperman ◽  
Thomas Eugene Cloete

2011 ◽  
Vol 1 (2) ◽  
pp. 131-139 ◽  
Author(s):  
Jose A. Brito ◽  
Nathalie Saffon ◽  
Montserrat Gomez ◽  
Beatriz Royo

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 509
Author(s):  
Lisa Wiedenhöft ◽  
Mohamed M. A. Elleithy ◽  
Mathias Ulbricht ◽  
Felix H. Schacher

Porous adsorber membranes are promising materials for the removal of charged pollutants, such as heavy metal ions or organic dyes as model substances for pharmaceuticals from water. Here, we present the surface grafting of polyethylene terephthalate (PET) track-etched membranes having well defined cylindrical pores of 0.2 or 1 µm diameter with two polyelectrolytes, poly(2-acrylamido glycolic acid) (PAGA) and poly(N-acetyl dehydroalanine) (PNADha). The polyelectrolyte functionalised membranes were characterised by changes in wettability and hydraulic permeability in response to the external stimuli pH and the presence of Cu2+ ions. The response of the membranes proved to be consistent with functionalisation inside the pores, and the change of grafted polyelectrolyte macro-conformation was due to the reversible protonation or binding of Cu2+ ions. Moreover, the adsorption of the model dye methylene blue was studied and quantified. PAGA-grafted membranes showed an adsorption behavior following the Langmuir model for methylene blue.


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