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24 results on '"Tang, Jiebin"'

12. Low‐Friction Graphene Oxide‐Based Ion Selective Membrane for High‐Efficiency Osmotic Energy Harvesting.

Author

Wang, Dejuan, Wang, Zequn, Chen, Jialin, Zhi, Hui, Liu, Yongxu, Tang, Jiebin, Li, Ningbo, Zhang, Yafang, An, Meng, Liu, Hong, and Xue, Guobin

Subjects
ENERGY harvesting, SURFACE charges, POLAR vortex, IONS, FRICTION
Abstract

Graphene‐based laminate membranes with selective ion‐transport capability show great potential in renewable osmotic energy harvesting. One of the great challenges is to reduce the overall energy barriers while remain the high ion selectivity in the transmembrane ion transport process. Here, a strategy is proposed to break the trade‐off between ion selectivity and permeability in laminar nanochannels using amphiphilic molecules as modifier, which enhances the surface charge density of nanochannel by loading more ion polymer with polar head and lows the frictional force of ion transport with hydrophobic tail. The conversion efficiency can reach to 32% in osmotic energy harvesting (0.5 m/0.01 m concentration gradient) after adopting this modifier. During the process of mixing real river water and seawater, the maximum power density can reach to 13.38 W m−2. The amphiphilic molecules also bind adjacent nanosheets, endowing the membrane's strong mechanical strength and high stability in aqueous solution. This work can open up a new way to regulate the transmembrane ion transport in 2D laminate membranes. [ABSTRACT FROM AUTHOR]

Published
2024
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17. Water and oil resistance improvement of paper coated with aqueous mixture of hydrophilic and hydrophobic cross-linked copolymers

Author

Huili Wang, Tang Jiebin, Feixiang Guan, Wenxia Liu, Wu Yutao, and Zhaoping Song

Subjects
Coated paper, Environmental Engineering, Aqueous solution, Materials science, Filter paper, Polydimethylsiloxane, Water resistance, Bioengineering, Contact angle, chemistry.chemical_compound, Chemical engineering, chemistry, Copolymer, Waste Management and Disposal, Sodium alginate
Abstract

An aqueous mixture of hydrophilic and hydrophobic cross-linked copolymers was prepared and coated on the surface of filter paper to improve the water and oil resistances. The mixture was mainly composed of sodium alginate and hydroxyl-terminated polydimethylsiloxane (PDMS)-tetramethoxysilane (TMOS) cross-linked network. The results indicated that the resistances to both water and oil of the resulting paper were significantly enhanced. The water contact angle results demonstrated that the mixture enhanced the hydrophobic properties of the coated paper greatly with water contact angles higher than 110°, and the coated paper showed excellent oil resistance with a Kit number as high as 10.

Published
2020

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