Artificial Neural Network Modeling and Genetic Algorithm Optimization   for Cadmium Removal from Aqueous Solutions by Reduced Graphene   Oxide-Supported Nanoscale Zero-Valent Iron (nZVI/rGO) Composites

doi:10.3390/ma10050544

CORC > 北京大学 > 化学与分子工程学院

	Artificial Neural Network Modeling and Genetic Algorithm Optimization for Cadmium Removal from Aqueous Solutions by Reduced Graphene Oxide-Supported Nanoscale Zero-Valent Iron (nZVI/rGO) Composites
	Fan, Mingyi ; Li, Tongjun ; Hu, Jiwei ; Cao, Rensheng ; Wei, Xionghui ; Shi, Xuedan ; Ruan, Wenqian
刊名	MATERIALS
	2017
关键词	nZVI/rGO composites Cd(II) removal artificial neural network genetic algorithm RESPONSE-SURFACE METHODOLOGY WASTE-WATER ZEROVALENT IRON NITRATE REMOVAL ANN-GA PROCESS PARAMETERS ACTIVATED CARBON HEAVY-METALS ADSORPTION EQUILIBRIUM
DOI	10.3390/ma10050544
英文摘要	Reduced graphene oxide-supported nanoscale zero-valent iron (nZVI/rGO) composites were synthesized in the present study by chemical deposition method and were then characterized by various methods, such as Fourier-transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The nZVI/rGO composites prepared were utilized for Cd(II) removal from aqueous solutions in batch mode at different initial Cd(II) concentrations, initial pH values, contact times, and operating temperatures. Response surface methodology (RSM) and artificial neural network hybridized with genetic algorithm (ANN-GA) were used for modeling the removal efficiency of Cd(II) and optimizing the four removal process variables. The average values of prediction errors for the RSM and ANN-GA models were 6.47% and 1.08%. Although both models were proven to be reliable in terms of predicting the removal efficiency of Cd(II), the ANN-GA model was found to be more accurate than the RSM model. In addition, experimental data were fitted to the Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) isotherms. It was found that the Cd(II) adsorption was best fitted to the Langmuir isotherm. Examination on thermodynamic parameters revealed that the removal process was spontaneous and exothermic in nature. Furthermore, the pseudo-second-order model can better describe the kinetics of Cd(II) removal with a good R-2 value than the pseudo-first-order model.; National Natural Science Foundation of China [21667012]; SCI(E); ARTICLE; 5; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473561]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Fan, Mingyi,Li, Tongjun,Hu, Jiwei,et al. Artificial Neural Network Modeling and Genetic Algorithm Optimization for Cadmium Removal from Aqueous Solutions by Reduced Graphene Oxide-Supported Nanoscale Zero-Valent Iron (nZVI/rGO) Composites[J]. MATERIALS,2017.
APA	Fan, Mingyi.,Li, Tongjun.,Hu, Jiwei.,Cao, Rensheng.,Wei, Xionghui.,...&Ruan, Wenqian.(2017).Artificial Neural Network Modeling and Genetic Algorithm Optimization for Cadmium Removal from Aqueous Solutions by Reduced Graphene Oxide-Supported Nanoscale Zero-Valent Iron (nZVI/rGO) Composites.MATERIALS.
MLA	Fan, Mingyi,et al."Artificial Neural Network Modeling and Genetic Algorithm Optimization for Cadmium Removal from Aqueous Solutions by Reduced Graphene Oxide-Supported Nanoscale Zero-Valent Iron (nZVI/rGO) Composites".MATERIALS (2017).