Efficient Solar Evaporation by [Ni(Phen)3][V14O34Cl]Cl Hybrid Semiconductor Confined in Mesoporous Glass. Issue 11 (4th May 2020)

• Record Type: Journal Article
• Authors: Zhang, Hongping; Wang, Yan; Liu, Yongguang; Zhao, Mingming; Liu, Congyan; Wang, Yang; Albolkany, Mohamed K.; Wu, Niannian; Wang, Min; Yang, Luyun; Liu, Bo
• Is Part Of: ChemSusChem. Volume 13:Issue 11(2020)
• Page Start: 2945
• Page End: 2951
• Publication Date: 2020-05-04
• Subjects: desalination -- semiconductors -- foam -- mesoporous materials -- solar evaporation; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.202000356
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract: Efficient utilization of solar energy for water evaporation is an advanced and environmentally friendly technology to address the crisis of global drinking water shortages. This study concerns an efficient solar vapor generator comprised of a light‐absorbing and photothermal hybrid compound [Ni(Phen)3 ][V14 O34 Cl]Cl (NiV14 ) confined in mesoporous and hydrophilic glass (meso‐glass). The generator is floated in water by supporting it on a domestic melamine–formaldehyde (MF) foam to ensure evaporation at the water–air interface. The porous structures and poor thermal conductivities of the meso‐glass and MF foam contribute to enabling a consistent water supply, strong solar thermal localization, and less heat dissipation and convection. Associated with the strong photothermal role of NiV14, these synergistic effects lead to a water evaporation rate of 14.38 kg m −2 h −1 with total water evaporation efficiency of 111.4% under 6 suns and a daily solar water purification yield of 42.00 L m −2 under 1 sun irradiation. This solar evaporation system shows great promise for high‐efficiency water purification application. Abstract : The glass is always greener : A solar generator composed of [Ni(Phen)3 ][V14 O34 Cl]Cl confined in mesoporous glass (meso‐glass) supported on melamine–formaldehyde (MF) foam exhibits a strong photothermal effect. Porous and poorly heat‐resistant meso‐glass and MF foam enable a consistent water supply, strong solar thermal localization, and lower heat dissipation and convection. The optimal water evaporation rate is 14.38 kg m −2 h −1 with total water evaporation efficiency of 111.4 % under 6 suns irradiation.