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Your search keyword '"Shen, Jianfeng"' showing total 139 results
Start Over Author "Shen, Jianfeng" Publisher elsevier b.v.
139 results on '"Shen, Jianfeng"'

45. Salt-resistance holocellulose-based solar steam evaporator for desalination brine water.

Author

Xu, Zhenglong, Yang, Yifan, Ye, Chuming, Lin, Xianglong, Shen, Jianfeng, and Ye, Mingxin

Subjects
SALINE water conversion, EVAPORATORS, SOLUTION (Chemistry), MARITIME shipping, LIGHT absorbance, WATER supply
Abstract

Interfacial solar-powered water evaporation is a cost-effective and sustainable approach using solar energy for seawater desalination. Nevertheless, salt accumulation during solar desalination generally restricts the widespread application of solar vapor generation. Herein, taking merits of the excellent hydrophilicity and inherent porosity of holocellulose (HC), An excellent salt-resistant solar steam evaporator for long-term interfacial solar water desalination was fabricated by decorating polypyrrole (PPy) on the surface of HC. Due to the broadband light absorbance of PPy and the superhydrophilic HC substrate, the PPy-HC evaporator exhibited a high evaporation rate of 1.45 kg m−2 h−1 and conversion efficiency of 93.4 % in a 5 wt% NaCl solution under one sun illumination. Importantly, the evaporator presented superior salt-resistance and stability during long-term cycling test in high salinity brine. This work reveals the key role of superhydrophilicity and water transportation capability in high salt solution solar-driven desalination. Thus, this work provides an effective approach to address the issue of salt accumulation of the traditional evaporator, demonstrating its great potential for real-world solar-driven seawater desalination. [Display omitted] • Holocellulose ensures that there is an adequate water supply during evaporation. • The PPy-HC evaporator presents good salt-resistant and long-term durability. • The PPy-HC evaporator achieves over 99.9 % removal of metal ions from seawater. • The pure water was recovered from brine water and seawater. [ABSTRACT FROM AUTHOR]

Published
2023
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48. CuS nanoplatelets arrays grown on graphene nanosheets as advanced electrode materials for supercapacitor applications.

Author

Li, Xianfu, Zhou, Kaixuan, Zhou, Jianyu, Shen, Jianfeng, and Ye, Mingxin

Subjects
COPPER sulfide, GRAPHENE, CRYSTAL growth, SUPERCAPACITOR electrodes, GRAPHENE oxide
Abstract

Abstract CuS nanoplatelets arrays grown on graphene nanosheets are successfully synthesized via a facile low-temperature solvothermal reaction with graphene oxide (GO), CH 3 CSNH 2 and Cu(CH 3 COO) 2 ·H 2 O as the reactants. CH 3 CSNH 2 plays an important role in being the reducing agent for GO and the sulfur source of CuS. Supercapacitive performance of the graphene/CuS nanocomposite as active electrode materials has been evaluated by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy measurements. The results indicate that graphene/CuS electrode delivers a high capacitance of 497.8 F g–1 at a current density of 0.2 A g–1, which outperforms bare CuS electrode. This excellent performance is ascribed to the short diffusion path and large surface area of the unique hierarchical nanostructure with nanoflakes building blocks for bulk accessibility of faradaic reaction. [ABSTRACT FROM AUTHOR]

Published
2018
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