A lotus leaf like vertical hierarchical solar vapor generator for stable and efficient evaporation of high-salinity brine

被引：84

作者：

Cheng, Shaoan ^{[1
]}

Yu, Zhen ^{[1
]}

Lin, Zhufan ^{[1
]}

Li, Longxin ^{[1
]}

Li, Yihang ^{[1
]}

Mao, Zhengzhong ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Energy Engn, State Key Lab Clean Energy, Hangzhou 310027, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2020年 / 401卷

基金：

美国国家科学基金会;

关键词：

Solar vapor generation; Solar desalination; Lotus leaf; Salt-rejecting; High-salinity brine; Industrial dyeing wastewater; WATER EVAPORATION; SEAWATER DESALINATION; AQUEOUS-SOLUTIONS; LOW-COST; ENERGY; NANOPARTICLES; OPPORTUNITIES; ADSORPTION; MANAGEMENT; REMOVAL;

D O I：

10.1016/j.cej.2020.126108

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Interfacial solar vapor generation is promising and sustainable for seawater desalination. However, the performance degradation caused by salt accumulation has hindered the development of the interfacial solar vapor generator severely. In this paper, we have designed a lotus leaf like vertical hierarchical solar vapor generator (LSG) for stable evaporation of high-salinity brine. The LSG is assembled by Si/PPy-PVA sponge and multi-root columnar PVA sponge by mimicking the structure of the lotus leaf. The Si/PPy-PVA sponge is fabricated by successively depositing the PPy layer and silane layer on the PVA sponge and acts as the absorber of LSG. LSG enables a stable evaporation rate of 1.35 +/- 0.02 kg m(-2) h(-1) out of 26.6 wt% brine under 1 sun for over 15 days. Besides, LSG demonstrates high efficiency of 92.6% under 0.25 sun. LSG is also tested to treat different industrial dyeing wastewater with the highest evaporation rate of 1.38 +/- 0.01 kg m(-2) h(-1). The condensed water produced by LSG has reached the Class IV Surface Water Standards. Our work provides a new guideline to design high-efficiency solar vapor generators for stable evaporation of high-salinity brine.

引用

页数：10

共 59 条

[11] Optimization of process parameters for determination of trace Hazardous dyes from industrial wastewaters based on nanostructures materials under ultrasound energy [J].

Dil, Ebrahim Alipanahpour ;

Ghaedi, Mehrorang ;

Asfaram, Arash ;

Mehrabi, Fatemeh ;

Bazrafshan, Ali Akbar .

ULTRASONICS SONOCHEMISTRY, 2018, 40 :238-248

[12] Modeling and optimization of Hg2+ ion biosorption by live yeast Yarrowia lipolytica 70562 from aqueous solutions under artificial neural network-genetic algorithm and response surface methodology: kinetic and equilibrium study [J].

Dil, Ebrahim Alipanahpour ;

Ghaedi, Mehrorang ;

Ghezelbash, Gholam Reza ;

Asfaram, Arash ;

Ghaedi, Abdol Mohammad ;

Mehrabi, Fatemeh .

RSC ADVANCES, 2016, 6 (59) :54149-54161

[13] Porous polypyrrole clusters prepared by electropolymerization for a high performance supercapacitor [J].

Dubal, Deepak P. ;

Lee, Sang Ho ;

Kim, Jong Guk ;

Kim, Won Bae ;

Lokhande, Chandrakant D. .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (07) :3044-3052

[14] The Future of Seawater Desalination: Energy, Technology, and the Environment [J].

Elimelech, Menachem ;

Phillip, William A. .

SCIENCE, 2011, 333 (6043) :712-717

[15] Solar steam generation by heat localization [J].

Ghasemi, Hadi ;

Ni, George ;

Marconnet, Amy Marie ;

Loomis, James ;

Yerci, Selcuk ;

Miljkovic, Nenad ;

Chen, Gang .

NATURE COMMUNICATIONS, 2014, 5

[16] Efficient solar water vapor generation enabled by water-absorbing polypyrrole coated cotton fabric with enhanced heat localization [J].

Hao, Dandan ;

Yang, Yudi ;

Xu, Bi ;

Cai, Zaisheng .

APPLIED THERMAL ENGINEERING, 2018, 141 :406-412

[17]

He SM, 2019, ENERG ENVIRON SCI, V12, P1558, DOI [10.1039/c9ee00945k, 10.1039/C9EE00945K]

[18] Nature-Inspired, 3D Origami Solar Steam Generator toward Near Full Utilization of Solar Energy [J].

Hong, Seunghyun ;

Shi, Yusuf ;

Li, Renyuan ;

Zhang, Chenlin ;

Jin, Yong ;

Wang, Peng .

ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (34) :28517-28524

[19] Effect of nitrate on electricity generation in single-chamber air cathode microbial fuel cells [J].

Huang, Haobin ;

Cheng, Shaoan ;

Yang, Jiawei ;

Li, Chaochao ;

Sun, Yi ;

Cen, Kefa .

CHEMICAL ENGINEERING JOURNAL, 2018, 337 :661-670

[20] Recyclable CNT-coupled cotton fabrics for low-cost and efficient desalination of seawater under sunlight [J].

Kou, Hui ;

Liu, Zixiao ;

Zhu, Bo ;

Macharia, Daniel K. ;

Ahmed, Sharjeel ;

Wu, Binhe ;

Zhu, Meifang ;

Liu, Xiaogang ;

Chen, Zhigang .

DESALINATION, 2019, 462 (29-38) :29-38

← 1 2 3 4 5 6 →