The Experts below are selected from a list of 6450 Experts worldwide ranked by ideXlab platform
Jiangnan Shen - One of the best experts on this subject based on the ideXlab platform.
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polythyleneimine modified original positive charged nanofiltration membrane removal of heavy metal ions and dyes
Separation and Purification Technology, 2019Co-Authors: Lifang Zhu, Xin Shen, Arcadio Sotto, Congjie Gao, Jiangnan ShenAbstract:Abstract The performance of nanofiltraton (NF) membranes are characterized by a high selectivity for multivalent anions, whereas poor selective separation capacity for multivalent cations and heavy metal ions. In this work, a new positively charged NF membrane was prepared by using 2-chloro-1-methyliodopyridine as an active agent to graft Polyimide Polymer onto the membrane surface via covalent bonding with surface carboxylic groups. The results showed that the prepared membranes had a high selective separation for divalent and monovalent salts (MgCl2 97.1%, CaCl2 96.8%, Na2SO4 83.5%, MgSO4 87.3%, NaCl 49%, LiCl 32%), and also exhibited a high removal efficiency for toxic heavy metal ions and dyes (CuCl2 96%, NiCl2 95.8%, CrCl3 98.0%, Tropaeolin O 98.3%, Victoria blue B 99.2%, Semixylenol orange 99%, Neutral 98.2%).
Lifang Zhu - One of the best experts on this subject based on the ideXlab platform.
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polythyleneimine modified original positive charged nanofiltration membrane removal of heavy metal ions and dyes
Separation and Purification Technology, 2019Co-Authors: Lifang Zhu, Xin Shen, Arcadio Sotto, Congjie Gao, Jiangnan ShenAbstract:Abstract The performance of nanofiltraton (NF) membranes are characterized by a high selectivity for multivalent anions, whereas poor selective separation capacity for multivalent cations and heavy metal ions. In this work, a new positively charged NF membrane was prepared by using 2-chloro-1-methyliodopyridine as an active agent to graft Polyimide Polymer onto the membrane surface via covalent bonding with surface carboxylic groups. The results showed that the prepared membranes had a high selective separation for divalent and monovalent salts (MgCl2 97.1%, CaCl2 96.8%, Na2SO4 83.5%, MgSO4 87.3%, NaCl 49%, LiCl 32%), and also exhibited a high removal efficiency for toxic heavy metal ions and dyes (CuCl2 96%, NiCl2 95.8%, CrCl3 98.0%, Tropaeolin O 98.3%, Victoria blue B 99.2%, Semixylenol orange 99%, Neutral 98.2%).
Xin Shen - One of the best experts on this subject based on the ideXlab platform.
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polythyleneimine modified original positive charged nanofiltration membrane removal of heavy metal ions and dyes
Separation and Purification Technology, 2019Co-Authors: Lifang Zhu, Xin Shen, Arcadio Sotto, Congjie Gao, Jiangnan ShenAbstract:Abstract The performance of nanofiltraton (NF) membranes are characterized by a high selectivity for multivalent anions, whereas poor selective separation capacity for multivalent cations and heavy metal ions. In this work, a new positively charged NF membrane was prepared by using 2-chloro-1-methyliodopyridine as an active agent to graft Polyimide Polymer onto the membrane surface via covalent bonding with surface carboxylic groups. The results showed that the prepared membranes had a high selective separation for divalent and monovalent salts (MgCl2 97.1%, CaCl2 96.8%, Na2SO4 83.5%, MgSO4 87.3%, NaCl 49%, LiCl 32%), and also exhibited a high removal efficiency for toxic heavy metal ions and dyes (CuCl2 96%, NiCl2 95.8%, CrCl3 98.0%, Tropaeolin O 98.3%, Victoria blue B 99.2%, Semixylenol orange 99%, Neutral 98.2%).
Arcadio Sotto - One of the best experts on this subject based on the ideXlab platform.
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polythyleneimine modified original positive charged nanofiltration membrane removal of heavy metal ions and dyes
Separation and Purification Technology, 2019Co-Authors: Lifang Zhu, Xin Shen, Arcadio Sotto, Congjie Gao, Jiangnan ShenAbstract:Abstract The performance of nanofiltraton (NF) membranes are characterized by a high selectivity for multivalent anions, whereas poor selective separation capacity for multivalent cations and heavy metal ions. In this work, a new positively charged NF membrane was prepared by using 2-chloro-1-methyliodopyridine as an active agent to graft Polyimide Polymer onto the membrane surface via covalent bonding with surface carboxylic groups. The results showed that the prepared membranes had a high selective separation for divalent and monovalent salts (MgCl2 97.1%, CaCl2 96.8%, Na2SO4 83.5%, MgSO4 87.3%, NaCl 49%, LiCl 32%), and also exhibited a high removal efficiency for toxic heavy metal ions and dyes (CuCl2 96%, NiCl2 95.8%, CrCl3 98.0%, Tropaeolin O 98.3%, Victoria blue B 99.2%, Semixylenol orange 99%, Neutral 98.2%).
Congjie Gao - One of the best experts on this subject based on the ideXlab platform.
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polythyleneimine modified original positive charged nanofiltration membrane removal of heavy metal ions and dyes
Separation and Purification Technology, 2019Co-Authors: Lifang Zhu, Xin Shen, Arcadio Sotto, Congjie Gao, Jiangnan ShenAbstract:Abstract The performance of nanofiltraton (NF) membranes are characterized by a high selectivity for multivalent anions, whereas poor selective separation capacity for multivalent cations and heavy metal ions. In this work, a new positively charged NF membrane was prepared by using 2-chloro-1-methyliodopyridine as an active agent to graft Polyimide Polymer onto the membrane surface via covalent bonding with surface carboxylic groups. The results showed that the prepared membranes had a high selective separation for divalent and monovalent salts (MgCl2 97.1%, CaCl2 96.8%, Na2SO4 83.5%, MgSO4 87.3%, NaCl 49%, LiCl 32%), and also exhibited a high removal efficiency for toxic heavy metal ions and dyes (CuCl2 96%, NiCl2 95.8%, CrCl3 98.0%, Tropaeolin O 98.3%, Victoria blue B 99.2%, Semixylenol orange 99%, Neutral 98.2%).