Cotton cloth supported tungsten carbide/carbon nanocomposites as a Janus film for solar driven interfacial water evaporation

Author(s):  
Bojing Sun ◽  
Yun Han ◽  
Siwei Li ◽  
Ping Xu ◽  
Xijiang Han ◽  
...  

Solar-driven interfacial water evaporation, a sustainable approach to maintain the global freshwater shortages, requires both robust solar absorber materials and effective evaporation structure. Herein, tungsten carbide/carbon nanocomposites from a solvent-free...

Nano Energy ◽  
2019 ◽  
Vol 57 ◽  
pp. 507-518 ◽  
Author(s):  
Liangliang Zhu ◽  
Minmin Gao ◽  
Connor Kang Nuo Peh ◽  
Ghim Wei Ho

2017 ◽  
Vol 53 (50) ◽  
pp. 6744-6747 ◽  
Author(s):  
Dandan Ding ◽  
Weicheng Huang ◽  
Chuanqi Song ◽  
Mei Yan ◽  
Chongshen Guo ◽  
...  

MoO3−x quantum dots possessing strong photoabsorption have been used for interfacial heating for water evaporation.


2019 ◽  
Vol 373 ◽  
pp. 955-962 ◽  
Author(s):  
Yawei Yang ◽  
Wenxiu Que ◽  
Jianqiu Zhao ◽  
Yan Han ◽  
Maomao Ju ◽  
...  

2019 ◽  
Vol 7 (47) ◽  
pp. 26769-26775 ◽  
Author(s):  
Yaling Li ◽  
Mingyu Zhao ◽  
Yunshi Xu ◽  
Leilei Chen ◽  
Ting Jiang ◽  
...  

Porous MoS2 nanoflower-containing hydrogels are proposed as enhanced light trapping and antibacterial photothermal hotspots and are facilely deposited on a hydrophilic MCE substrate for highly efficient solar-driven interfacial water evaporation.


2019 ◽  
Vol 09 (06) ◽  
pp. 1950047 ◽  
Author(s):  
Maomao Ju ◽  
Yawei Yang ◽  
Jianqiu Zhao ◽  
Xingtian Yin ◽  
Yutao Wu ◽  
...  

Interfacial water evaporation through solar heating with photothermal materials is a promising strategy for seawater desalination and wastewater purification. Tightly packed 2D membranes with high reflection losses and limited vapor escape channels result in a low evaporation rate. In this work, 3D MXene architecture was fabricated by dropping the delaminated Ti3C2 ([Formula: see text]-Ti3C2) nanosheets onto the carbonized melamine foam (CMF) framework. Owing to the macroporous 3D architecture, more effective broadband solar absorption and vapor escaping were achieved. As a result, the 3D CMF@[Formula: see text]-Ti3C2-based evaporator delivers a water evaporation rate of 1.60[Formula: see text]kg/m2[Formula: see text][Formula: see text][Formula: see text]h with a solar-to-vapor conversion efficiency of up to 84.6%.


2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Yunlong Lian ◽  
Binhua Han ◽  
Dawei Liu ◽  
Yahui Wang ◽  
Honghong Zhao ◽  
...  

AbstractCarbides/carbon composites are emerging as a new kind of binary dielectric systems with good microwave absorption performance. Herein, we obtain a series of tungsten carbide/carbon composites through a simple solvent-free strategy, where the solid mixture of dicyandiamide (DCA) and ammonium metatungstate (AM) is employed as the precursor. Ultrafine cubic WC1−x nanoparticles (3–4 nm) are in situ generated and uniformly dispersed on carbon nanosheets. This configuration overcomes some disadvantages of conventional carbides/carbon composites and is greatly helpful for electromagnetic dissipation. It is found that the weight ratio of DCA to AM can regulate chemical composition of these composites, while less impact on the average size of WC1−x nanoparticles. With the increase in carbon nanosheets, the relative complex permittivity and dielectric loss ability are constantly enhanced through conductive loss and polarization relaxation. The different dielectric properties endow these composites with distinguishable attenuation ability and impedance matching. When DCA/AM weight ratio is 6.0, the optimized composite can produce good microwave absorption performance, whose strongest reflection loss intensity reaches up to − 55.6 dB at 17.5 GHz and qualified absorption bandwidth covers 3.6–18.0 GHz by manipulating the thickness from 1.0 to 5.0 mm. Such a performance is superior to many conventional carbides/carbon composites.


Sign in / Sign up

Export Citation Format

Share Document