The Experts below are selected from a list of 72 Experts worldwide ranked by ideXlab platform
Jianlong Kou - One of the best experts on this subject based on the ideXlab platform.
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correction nanoporous two dimensional mos2 membranes for fast saline Solution Purification
Physical Chemistry Chemical Physics, 2020Co-Authors: Jianlong Kou, Jun Yao, Xiaoyan Zhou, Jintu FanAbstract:Correction for 'Nanoporous two-dimensional MoS2 membranes for fast saline Solution Purification' by Jianlong Kou et al., Phys. Chem. Chem. Phys., 2016, 18, 22210-22216.
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nanoporous two dimensional mos2 membranes for fast saline Solution Purification
Physical Chemistry Chemical Physics, 2016Co-Authors: Jianlong Kou, Jun Yao, Xiaoyan Zhou, Jintu FanAbstract:Finding a membrane with both high permeability and high salt rejection is very important for saline Solution Purification. Here, we report the performance of molybdenum disulfide (MoS2) membranes with nanoscale pores for saline Solution Purification via all-atom molecular dynamics simulations. It was found that the nanoporous two-dimensional MoS2 membrane can impede salt ions, while allowing highly efficient permeation of water molecules. By engineering the appropriate sizes of the nanopores within two-dimensional MoS2 membranes, their water permeability can be tens of times as high as that of conventional reverse osmosis membranes, while still maintaining a high salt rejection rate. These remarkable water permeability and salt rejection properties of the nanoporous monolayer MoS2 membranes are attributed to the formation of single chain hydrogen bonds, which link the water molecules within the nanopores and those at the immediate exteriors of the nanopores, causing significant reduction in the resistance of water molecules passing through the nanopores, which are small enough for any salt ions to pass through. Therefore such nanoporous monolayer MoS2 membranes have great potential for saline Solution Purification.
Jintu Fan - One of the best experts on this subject based on the ideXlab platform.
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correction nanoporous two dimensional mos2 membranes for fast saline Solution Purification
Physical Chemistry Chemical Physics, 2020Co-Authors: Jianlong Kou, Jun Yao, Xiaoyan Zhou, Jintu FanAbstract:Correction for 'Nanoporous two-dimensional MoS2 membranes for fast saline Solution Purification' by Jianlong Kou et al., Phys. Chem. Chem. Phys., 2016, 18, 22210-22216.
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nanoporous two dimensional mos2 membranes for fast saline Solution Purification
Physical Chemistry Chemical Physics, 2016Co-Authors: Jianlong Kou, Jun Yao, Xiaoyan Zhou, Jintu FanAbstract:Finding a membrane with both high permeability and high salt rejection is very important for saline Solution Purification. Here, we report the performance of molybdenum disulfide (MoS2) membranes with nanoscale pores for saline Solution Purification via all-atom molecular dynamics simulations. It was found that the nanoporous two-dimensional MoS2 membrane can impede salt ions, while allowing highly efficient permeation of water molecules. By engineering the appropriate sizes of the nanopores within two-dimensional MoS2 membranes, their water permeability can be tens of times as high as that of conventional reverse osmosis membranes, while still maintaining a high salt rejection rate. These remarkable water permeability and salt rejection properties of the nanoporous monolayer MoS2 membranes are attributed to the formation of single chain hydrogen bonds, which link the water molecules within the nanopores and those at the immediate exteriors of the nanopores, causing significant reduction in the resistance of water molecules passing through the nanopores, which are small enough for any salt ions to pass through. Therefore such nanoporous monolayer MoS2 membranes have great potential for saline Solution Purification.
Xiaoyan Zhou - One of the best experts on this subject based on the ideXlab platform.
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correction nanoporous two dimensional mos2 membranes for fast saline Solution Purification
Physical Chemistry Chemical Physics, 2020Co-Authors: Jianlong Kou, Jun Yao, Xiaoyan Zhou, Jintu FanAbstract:Correction for 'Nanoporous two-dimensional MoS2 membranes for fast saline Solution Purification' by Jianlong Kou et al., Phys. Chem. Chem. Phys., 2016, 18, 22210-22216.
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nanoporous two dimensional mos2 membranes for fast saline Solution Purification
Physical Chemistry Chemical Physics, 2016Co-Authors: Jianlong Kou, Jun Yao, Xiaoyan Zhou, Jintu FanAbstract:Finding a membrane with both high permeability and high salt rejection is very important for saline Solution Purification. Here, we report the performance of molybdenum disulfide (MoS2) membranes with nanoscale pores for saline Solution Purification via all-atom molecular dynamics simulations. It was found that the nanoporous two-dimensional MoS2 membrane can impede salt ions, while allowing highly efficient permeation of water molecules. By engineering the appropriate sizes of the nanopores within two-dimensional MoS2 membranes, their water permeability can be tens of times as high as that of conventional reverse osmosis membranes, while still maintaining a high salt rejection rate. These remarkable water permeability and salt rejection properties of the nanoporous monolayer MoS2 membranes are attributed to the formation of single chain hydrogen bonds, which link the water molecules within the nanopores and those at the immediate exteriors of the nanopores, causing significant reduction in the resistance of water molecules passing through the nanopores, which are small enough for any salt ions to pass through. Therefore such nanoporous monolayer MoS2 membranes have great potential for saline Solution Purification.
Jun Yao - One of the best experts on this subject based on the ideXlab platform.
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correction nanoporous two dimensional mos2 membranes for fast saline Solution Purification
Physical Chemistry Chemical Physics, 2020Co-Authors: Jianlong Kou, Jun Yao, Xiaoyan Zhou, Jintu FanAbstract:Correction for 'Nanoporous two-dimensional MoS2 membranes for fast saline Solution Purification' by Jianlong Kou et al., Phys. Chem. Chem. Phys., 2016, 18, 22210-22216.
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nanoporous two dimensional mos2 membranes for fast saline Solution Purification
Physical Chemistry Chemical Physics, 2016Co-Authors: Jianlong Kou, Jun Yao, Xiaoyan Zhou, Jintu FanAbstract:Finding a membrane with both high permeability and high salt rejection is very important for saline Solution Purification. Here, we report the performance of molybdenum disulfide (MoS2) membranes with nanoscale pores for saline Solution Purification via all-atom molecular dynamics simulations. It was found that the nanoporous two-dimensional MoS2 membrane can impede salt ions, while allowing highly efficient permeation of water molecules. By engineering the appropriate sizes of the nanopores within two-dimensional MoS2 membranes, their water permeability can be tens of times as high as that of conventional reverse osmosis membranes, while still maintaining a high salt rejection rate. These remarkable water permeability and salt rejection properties of the nanoporous monolayer MoS2 membranes are attributed to the formation of single chain hydrogen bonds, which link the water molecules within the nanopores and those at the immediate exteriors of the nanopores, causing significant reduction in the resistance of water molecules passing through the nanopores, which are small enough for any salt ions to pass through. Therefore such nanoporous monolayer MoS2 membranes have great potential for saline Solution Purification.
Bei Sun - One of the best experts on this subject based on the ideXlab platform.
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a data driven optimal control approach for Solution Purification process
Journal of Process Control, 2018Co-Authors: Bei Sun, Weihua Gui, Yalin Wang, Chunhua Yang, Quanmin ZhuAbstract:Abstract Solution Purification holds a critical position in hydrometallurgy. With its inherent complexity and the mixed raw material supply, Solution Purification process exhibits various working conditions, and has nonlinear, time-varying dynamics. At current stage, a comprehensive and precise model of a Solution Purification process is still costly to obtain. More specifically, the model structure could be derived by applying physical and chemical principles, while the accurate model parameters cannot be obtained under certain working conditions due to reasons like insufficient data samples. This, in turn, introduces obstacles in achieving the optimal operation. In order to circumvent the modeling difficulty, this paper proposes a ‘Process State Space’ descriptive system to re-describe the optimal control problem of Solution Purification process, accordingly establishes a two-layer receding horizon framework for developing a data-driven optimal control of Solution Purification process. In the optimal control scheme, on the ‘optimization’ layer, by utilizing the ‘multiple-reactors’ characteristic of Solution Purification process, a ‘gradient’ optimization strategy is proposed to transform the dosage minimization problem into obtaining the optimal variation gradient of the outlet impurity concentrations along the reactors. On the ‘control’ layer, a model-free input constrained adaptive dynamic programming algorithm is devised and applied to calculate the optimal dosages for each reactor by learning from the real-time production data. Case studies are performed to illustrate the effectiveness and efficiency of the proposed approach. The results and problems need future research are also discussed.
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a gradient optimization scheme for Solution Purification process
Control Engineering Practice, 2015Co-Authors: Bei Sun, Weihua Gui, Yalin Wang, Chunhua YangAbstract:Abstract This paper presents a two-layer control scheme to address the difficulties in the modeling and control of Solution Purification process. Two concepts are extracted from the characteristics of Solution Purification process: additive utilization efficiency (AUE) and impurity removal ratio (IRR). The idea of gradient optimization of Solution Purification process, which transforms the economical optimization problem of Solution Purification process into finding an optimal decline gradient of the impurity ion concentration along the reactors, is proposed. A robust adaptive controller is designed to track the optimized impurity ion concentration in the presence of process uncertainties, disturbance and saturation. Oxidation reduction potential (ORP), which is a significant parameter of Solution Purification process, is also used in the scheme. The ability of the gradient optimization scheme is illustrated with a simulated case study of a cobalt removal process.