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Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network

Graphene oxide (GO), as an emerging material, exhibits extraordinary performance in terms of water treatment. Adsorption is a process that is influenced by multiple factors and is difficult to simulate by traditional statistical models. Artificial neural networks (ANNs) can establish highly accurate...

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Autores principales: Zhang, Yumeng, Dai, Min, Liu, Ke, Peng, Changsheng, Du, Yufeng, Chang, Quanchao, Ali, Imran, Naz, Iffat, Saroj, Devendra P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072095/
https://www.ncbi.nlm.nih.gov/pubmed/35530206
http://dx.doi.org/10.1039/c9ra06079k
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author Zhang, Yumeng
Dai, Min
Liu, Ke
Peng, Changsheng
Du, Yufeng
Chang, Quanchao
Ali, Imran
Naz, Iffat
Saroj, Devendra P.
author_facet Zhang, Yumeng
Dai, Min
Liu, Ke
Peng, Changsheng
Du, Yufeng
Chang, Quanchao
Ali, Imran
Naz, Iffat
Saroj, Devendra P.
author_sort Zhang, Yumeng
collection PubMed
description Graphene oxide (GO), as an emerging material, exhibits extraordinary performance in terms of water treatment. Adsorption is a process that is influenced by multiple factors and is difficult to simulate by traditional statistical models. Artificial neural networks (ANNs) can establish highly accurate nonlinear functional relationships between multiple variables; hence, we constructed a three-layered ANN model to predict the removal performance of Cu(ii) metal ions by the prepared GO. In the present research work, GO was prepared and characterized by FT-IR spectroscopy, SEM, and XRD analysis techniques. In ANN modeling, the Levenberg–Marquardt learning algorithm (LMA) was applied by comparing 13 different back-propagation (BP) learning algorithms. The network structure and parameters were optimized according to various error indicators between the predicted and experimental data. The hidden layer neurons were set to be 12, and optimal network learning rate was 0.08. Contour and 3-D diagrams were used to illustrate the interactions of different influencing factors on the adsorption efficiency. Based on the results of batch adsorption experiments combined with the optimization of influencing factors by ANN, the optimum pH, initial Cu(ii) ion concentration and temperature were anticipated to be 5.5, 15 mg L(−1) and 318 K, respectively. Moreover, the adsorption experiments reached equilibrium at about 120 min. Combined with sensitivity analysis, the degree of influence of each factor could be ranked as: pH > initial concentration > temperature > contact time.
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spelling pubmed-90720952022-05-06 Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network Zhang, Yumeng Dai, Min Liu, Ke Peng, Changsheng Du, Yufeng Chang, Quanchao Ali, Imran Naz, Iffat Saroj, Devendra P. RSC Adv Chemistry Graphene oxide (GO), as an emerging material, exhibits extraordinary performance in terms of water treatment. Adsorption is a process that is influenced by multiple factors and is difficult to simulate by traditional statistical models. Artificial neural networks (ANNs) can establish highly accurate nonlinear functional relationships between multiple variables; hence, we constructed a three-layered ANN model to predict the removal performance of Cu(ii) metal ions by the prepared GO. In the present research work, GO was prepared and characterized by FT-IR spectroscopy, SEM, and XRD analysis techniques. In ANN modeling, the Levenberg–Marquardt learning algorithm (LMA) was applied by comparing 13 different back-propagation (BP) learning algorithms. The network structure and parameters were optimized according to various error indicators between the predicted and experimental data. The hidden layer neurons were set to be 12, and optimal network learning rate was 0.08. Contour and 3-D diagrams were used to illustrate the interactions of different influencing factors on the adsorption efficiency. Based on the results of batch adsorption experiments combined with the optimization of influencing factors by ANN, the optimum pH, initial Cu(ii) ion concentration and temperature were anticipated to be 5.5, 15 mg L(−1) and 318 K, respectively. Moreover, the adsorption experiments reached equilibrium at about 120 min. Combined with sensitivity analysis, the degree of influence of each factor could be ranked as: pH > initial concentration > temperature > contact time. The Royal Society of Chemistry 2019-09-24 /pmc/articles/PMC9072095/ /pubmed/35530206 http://dx.doi.org/10.1039/c9ra06079k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zhang, Yumeng
Dai, Min
Liu, Ke
Peng, Changsheng
Du, Yufeng
Chang, Quanchao
Ali, Imran
Naz, Iffat
Saroj, Devendra P.
Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network
title Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network
title_full Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network
title_fullStr Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network
title_full_unstemmed Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network
title_short Appraisal of Cu(ii) adsorption by graphene oxide and its modelling via artificial neural network
title_sort appraisal of cu(ii) adsorption by graphene oxide and its modelling via artificial neural network
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072095/
https://www.ncbi.nlm.nih.gov/pubmed/35530206
http://dx.doi.org/10.1039/c9ra06079k
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