A sodium modified reduced graphene oxide–Fe3O4 nanocomposite for efficient lead(ii) adsorption

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 84825-84836 ◽  
Author(s):  
Kota V. M. K. Kireeti ◽  
Chandrakanth G. ◽  
Mahesh M. Kadam ◽  
Neetu Jha

A simple, cost-effective and facile route was employed to synthesize a hydrophobic sodium modified reduced graphene oxide-magnetic iron oxide (SMGI) nanocomposite for the removal of Pb(ii) from aqueous solutions via adsorption.

RSC Advances ◽  
2016 ◽  
Vol 6 (24) ◽  
pp. 20089-20094 ◽  
Author(s):  
Ehab H. Abdelhamid ◽  
O. D. Jayakumar ◽  
Vasundhara Kotari ◽  
Balaji P. Mandal ◽  
Rekha Rao ◽  
...  

Flexible and self-standing polyvinylidene fluoride (PVDF) films loaded with nanofillers, reduced graphene oxide (RGO), zinc oxide (ZnO) and magnetic iron oxide (Fe3O4) nanoparticles, were prepared by a solvent casting method.


Author(s):  
Vitor H. N. Martins ◽  
Nicolás M. S. Siqueira ◽  
Jéssica E. S. Fonsaca ◽  
Sergio H. Domingues ◽  
Victor H. R. Souza

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12227-12234
Author(s):  
Hisham S. M. Abd-Rabboh ◽  
Abd El-Galil E. Amr ◽  
Elsayed A. Elsayed ◽  
Ahmed Y. A. Sayed ◽  
Ayman H. Kamel

Robust, reliable and cost-effective paper-based analytical device for potentiometric pholcodine (opiate derivative drug) ion sensing has been prepared and characterized.


2014 ◽  
Vol 4 (12) ◽  
pp. 4396-4405 ◽  
Author(s):  
Teo Peik-See ◽  
Alagarsamy Pandikumar ◽  
Lim Hong Ngee ◽  
Huang Nay Ming ◽  
Chia Chin Hua

Synthesis of magnetically separable rGO/Fe3O4nanocomposite materials for environmental remediationviathe photocatalytic degradation of methylene blue.


Author(s):  
Kaiming Guo ◽  
Firdoz Shaik ◽  
Jine Yang ◽  
Bin Jiang

Abstract Water splitting is considered as a potential sustainable and green technology for producing mass hydrogen and oxygen. A cost-effective self-supported stable electrocatalyst with excellent electrocatalytic performance in a wide pH range is greatly required for water splitting. This work reports on the synthesis and anchoring of Fe1CoxNiyP nanoparticles on vertically aligned reduced graphene oxide array (VrGO) via electroless plating. The catalytic activity of Fe1CoxNiyP nanoparticles is tuned finely by tailoring the cationic ratio of Co and Ni. Fe1Co2Ni1P/VrGO exhibits the lowest overpotential (58 and 110 mV) at 10 mA cm−2 and lowest tafel slope (31 and 33 mV dec−1) for hydrogen evolution reaction in 1.0 M KOH and 0.5 M H2SO4 respectively. Fe1Co1Ni2P/VrGO exhibits the lowest overpotential (173 mV) at 10 mA cm−2 with lowest tafel slope (47 mV dec-1) for oxygen evolution reaction. The enhanced performance of the electrocatalyst is attributed to improved electrical conductivity, synergistic effects and beneficial electronic states caused by the appropriate atomic ratio of Co and Ni in the bifunctional electrocatalyst. This study helps to explore the effect of variable cationic ratio in the cost-effective ternary iron group metal phosphides electrocatalysts to achieve enhanced electrocatalytic performance for water splitting in a wide pH range.


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