Asset Details
Do you wish to reserve the book?
Adsorption of Cationic Dyes on Dacryodes edulis Seeds Activated Carbon Modified Using Phosphoric Acid and Sodium Chloride
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Adsorption of Cationic Dyes on Dacryodes edulis Seeds Activated Carbon Modified Using Phosphoric Acid and Sodium Chloride
Do you wish to request the book?
Adsorption of Cationic Dyes on Dacryodes edulis Seeds Activated Carbon Modified Using Phosphoric Acid and Sodium Chloride
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Adsorption of Cationic Dyes on Dacryodes edulis Seeds Activated Carbon Modified Using Phosphoric Acid and Sodium Chloride
2020
Overview
The aim of this study was to investigate the adsorption of Congo red (CR) and Vat yellow 4 (VY4) cationic dyes from aqueous media using adsorbents developed from
Dacryodes edulis
(African pear) seeds (DES) activated using phosphoric acid (H
3
PO
4
) and sodium chloride (NaCl). The adsorbents were characterised using X-ray Fluorescence (XRF), Fourier Transforms Infrared Spectrophotometry (FTIR) and Scanning Electron Microscopy (SEM). Maximum uptake of CR and VY4 was observed at an initial pH of 2. H
3
PO
4
activated
Dacryodes edulis
carbon (ADES) performed better than the NaCl activated
Dacryodes edulis
carbon (SDES) which implied that the H
3
PO
4
increased the porosity and surface area of DES compared to NaCl use. Maximum dye removal of 99.59%, 96.88%, 99.70% and 98.99% were obtained for the VY4/ADES, VY4/SDES, CR/ADES and CR/SDES, respectively. The Langmuir-Freundlich isotherm showed best fitting when using ADES as adsorbent and the Freundlich isotherm when using SDES. The pseudo-second-order kinetic model was found to best correlate with the experimental data and the adsorption process was controlled by film diffusion. Thermodynamics revealed that adsorption was favourable, spontaneous, and endothermic.
Publisher
Springer International Publishing
