Journal Title
Title of Journal: Res Chem Intermed
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Abbravation: Research on Chemical Intermediates
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Publisher
Springer Netherlands
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Authors: Zohre Shahryari Ali Mohebbi Ataallah Soltani Goharrizi Amir Ahmad Forghani
Publish Date: 2012/10/31
Volume: 39, Issue: 8, Pages: 3595-3609
Abstract
In this study an artificial neural network ANN has been developed to predict the adsorption amount of dye methylene blue onto multiwalled carbon nanotubes Batch experiments have been carried out to obtain experimental data Important parameters in the adsorption system such as initial dye concentration adsorbent dosage temperature pH and contact time have been used as the inputs of the network while the output is the final concentration of dye in aqueous solution after adsorption The neural network structure has been optimized by testing various training algorithms and different number of neurons in a hidden layer An empirical equation for determination of final dye concentration in aqueous solutions after adsorption has been developed by using the weights of the optimized network The results of the optimized ANN have been compared with conventional models in equilibrium and kinetic fields According to error analysis and determination coefficient the ANN was found to be the most appropriate model to describe this adsorption process Sensitivity analysis showed that initial dye concentration pH and contact time are the most effective parameters in this process The influence percentages of these parameters on the output were 28 24 and 24 respectively
Keywords:
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