Removal of Rhodamine B Dye Using Activated Carbon Prepared from Palm Kernel Shell and Coated with Iron Oxide Nanoparticles

2012 ◽  
Vol 47 (5) ◽  
pp. 742-752 ◽  
Author(s):  
P. Panneerselvam ◽  
Norhashimah Morad ◽  
Kah Aik Tan ◽  
R. Mathiyarasi
2016 ◽  
Vol 18 (2) ◽  
pp. 259-268 ◽  

<p>This paper reports on the fabrication, characterization and testing of iron oxide nanoparticles &ndash; powdered activated carbon (PAC) composites for water treatment and PAC regeneration by Fenton reactions. Different wet impregnation procedures and iron loadings were assessed in terms of organic micropollutant adsorption, by using the pharmaceutical diclofenac (DCF) as model compound. The preparation of a ferrihydrite-impregnated PAC with low iron content (~40.7 mg<sub>Fe</sub>/g<sub>PAC</sub>) and high BET surface area (1037 m<sup>2 </sup>g<sup>-1</sup>) was found to be the optimum, exhibiting excellent DCF adsorption capacity, similar to that of the original PAC (203 mg<sub>DCF</sub>/g<sub>PAC/Fe</sub>), with the adsorption isotherm satisfactorily fitted by both the Freundlich and Langmuir models. The regeneration of the ferrihydrite-PAC (Fe/PAC) indicated that the presence of iron-oxide nanoparticles is important for achieving a high regeneration efficiency by hydrogen peroxide, even at neutral pH. However, the solution pH had a significant effect on DCF uptake, being greater at acidic pH after the regeneration of the composite. Ongoing R&amp;D is aimed at material optimization and testing in a novel hybrid process scheme developed in author&rsquo;s laboratory, involving a continuous Fe/PAC &ndash; Fenton process in conjunction with a low pressure membrane separation process.&nbsp;</p>


2019 ◽  
Vol 27 (6) ◽  
pp. 6088-6102 ◽  
Author(s):  
Carole Silveira ◽  
Quelen Letícia Shimabuku-Biadola ◽  
Marcela Fernandes Silva ◽  
Marcelo Fernandes Vieira ◽  
Rosângela Bergamasco

2019 ◽  
Vol 55 (2) ◽  
pp. 1-4 ◽  
Author(s):  
Panpailin Seeharaj ◽  
Eakkasit Thasirisap ◽  
Charnwit Tridech ◽  
Sunisa Jindasuwan

2019 ◽  
Vol 13 ◽  
pp. 100149 ◽  
Author(s):  
Is Fatimah ◽  
Sugesti Nur Amaliah ◽  
Muhammad Fiqri Andrian ◽  
Tri Pindi Handayani ◽  
Rico Nurillahi ◽  
...  

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