Synthesis and characterization of benzilic alcohol metalloporphyrin and its nanocomposite with graphene oxide (GO–CoTHMP) and investigation of their efficiency in the removal of environmental pollutants

RSC Advances ◽  
2016 ◽  
Vol 6 (67) ◽  
pp. 62916-62922 ◽  
Author(s):  
Hossein Ghafuri ◽  
Shirin Rahmani ◽  
Rahmatollah Rahimi ◽  
Esmaeel Mohammadiyan
Keyword(s):  
Graphene Oxide ◽  
Environmental Pollutants ◽  
Synthesis And Characterization ◽  
First Time

5,10,15,20-Tetrakis-(4-hydroxymethylphenyl)porphyrin (THMP), metalloporphyrin [(Co(iii)THMP)] and its nanocomposites with graphene oxide (GO–CoTHMP) were synthesized for the first time.

scholarly journals Constructing magnetic Si–C–Fe hybrid microspheres for room temperature nitroarenes reduction

2017 ◽  
Vol 5 (22) ◽  
pp. 10986-10997 ◽  
Author(s):  
Xiaofei Zhang ◽  
Lixin Chen ◽  
Jin Yun ◽  
Xiaodong Wang ◽  
Jie Kong
Keyword(s):  
Room Temperature ◽  
Environmental Pollutants ◽  
Catalytic Performance ◽  
Synthesis And Characterization ◽  
Fine Chemicals ◽  
Temperature Reduction ◽  
First Time

In this work, we present, for the first time, the synthesis and characterization of magnetic Si–C–Fe hybrid microspheres and their catalytic performance in room temperature reduction of nitroarenes as a representative sustainable process for converting environmental pollutants to fine chemicals.

scholarly journals Graphene Oxide/Fe-Based Composite Pre-Polymerized Coagulants: Synthesis, Characterization, and Potential Application in Water Treatment

2020 ◽  
Vol 6 (3) ◽  
pp. 44
Author(s):  
Athanasia K. Tolkou ◽  
Anastasios I. Zouboulis
Keyword(s):  
Graphene Oxide ◽  
Surface Water ◽  
Ph Value ◽  
Synthesis And Characterization ◽  
Alkaline Ph ◽  
Sem Images ◽  
Operational Conditions ◽  
Ph Values ◽  
First Time

This study presents for the first time the synthesis and characterization of GO (graphene oxide), PFSiC (polyferric silicate chloride), and hybrid GO-PFSiC derivatives, aiming to enhance synergistically the performance of coagulation, when applied for the treatment of water. The structure and the morphology of composite GO-PFSiC coagulants were studied in detail by the application of FTIR, XRD, and SEM characterization techniques. Furthermore, the proposed coagulants were applied for the treatment of simulated turbid surface water. The effects of the reagent’s dosage, pH value, and experimental/operational conditions on the coagulation efficiency, applied mainly for the removal of turbidity, were examined. The results, obtained from the FTIR and XRD measurements, showed the presence of a bond between the PFSiC and the GO surface, indicating that the PFSiC particles are distributed uniformly on the surface of graphene, which was also confirmed by the SEM images. Especially, the composite compound GO-PFSiC1.5-15-0.5 presents the most uniform distribution of iron on the surface of graphene oxide and exhibits the optimum coagulation efficiency, while it significantly reduces the turbidity for doses above 3–5 mg/L, i.e., achieving the respective legislation limit as proposed by WHO. Specifically, at the alkaline pH values (>7.9), the removal of turbidity reaches 96%. Consequently, the results of this study render these materials as potential coagulant agents for further research and applications, aiming to also achieve the co-removal of other water components.

Synthesis and characterization of reduced graphene oxide by cobalt oxide composite electrode

2020 ◽  
Author(s):  
S. Veeresh ◽  
H. Ganesh ◽  
Y. S. Nagaraj ◽  
M. Vandana ◽  
S. P. Ashokkumar ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cobalt Oxide ◽  
Composite Electrode ◽  
Synthesis And Characterization ◽  
Oxide Composite ◽  
Reduced Graphene

Synthesis and Characterization of Nitrogen Doped Reduced Graphene Oxide Based Cobalt-ZIF-8 Catalysts for Oxygen Reduction Reaction

2021 ◽  
Vol MA2021-02 (36) ◽  
pp. 1024-1024
Author(s):  
Hassan Shirzadi Jahromi ◽  
Shivi Saxena ◽  
Sudharsan Sridhar ◽  
Muralidhar K Ghantasala ◽  
Ramakrishna Guda ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
Synthesis And Characterization ◽  
Nitrogen Doped ◽  
Reduced Graphene

Synthesis and Characterization of Nitrogen Doped Reduced Graphene Oxide Based Cobalt-ZIF-8 Catalysts for Oxygen Reduction Reaction

2021 ◽  
Vol 104 (8) ◽  
pp. 59-71
Author(s):  
Hassan Shirzadi Jahromi ◽  
Shivi Saxena ◽  
Sudharsan Sridhar ◽  
Muralidhar K Ghantasala ◽  
Ramakrishna Guda ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
Synthesis And Characterization ◽  
Nitrogen Doped ◽  
Reduced Graphene
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