Hierarchical CuO/ZnO Heterojunction with Improved Spectrum Absorption for Interfacial Solar Steam Generation

Zhang, Kai; Cai, Wen-Fang; Zhao, Shi-Feng; Zhao, Yi; Chen, Qing-Yun; Wang, Yun-Hai

doi:10.1021/acs.iecr.3c02036

Ind. Eng. Chem. Res.

2023

DOI: 10.1021/acs.iecr.3c02036

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Hierarchical CuO/ZnO Heterojunction with Improved Spectrum Absorption for Interfacial Solar Steam Generation

Kai Zhang,

Wen-Fang Cai,

Shi-Feng Zhao

et al.

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2024

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Cited by 9 publications

References 81 publications

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Laser‐Induced Porous Graphene/CuO Composite for Efficient Interfacial Solar Steam Generation

Wei,

Li,

Zhang

et al. 2024

Adv Funct Materials

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Interfacial solar steam generation can produce clean water in an environmentally friendly and efficient way. The evaporator employing graphene as a photothermal conversion material represents an excellent paradigm within the realm of interfacial evaporators. However, existing graphene materials exhibit a certain degree of hydrophobicity and are associated with intricate manufacturing processes. Hence, the study proposes a hydrophilic composite graphene‐based material incorporating CuO, which is fabricated through a straightforward laser‐induced graphene synthesis method directly onto a polyimide film coated with CuCl2. Due to the fast capillary performance endowed by the enhanced hydrophilicity and hierarchical structural morphology, the assembled laser‐induced‐graphene evaporator achieves an evaporation rate of 2.54 kg m−2 h−1 under 1 sun irradiation with an evaporation efficiency of 91.1%, while also demonstrating excellent desalination capabilities. The as‐prepared graphene‐based evaporator has significant potential for desalination and wastewater treatment applications, offering an effective solution to address clean water challenges in remote areas.

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Laser‐Induced Porous Graphene/CuO Composite for Efficient Interfacial Solar Steam Generation

Wei,

Li,

Zhang

et al. 2024

Adv Funct Materials

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Examining the Potential of CuO/ZnBi2O4 Heterojunction Photocathode in the Photoelectrochemical Water-Splitting Applications

Nguyen,

Truong,

Sang-June

et al. 2024

Korean J. Chem. Eng.

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The photothermal properties of hydrogel nanocomposite embedded with ZnO/CuO based on PVA/GA/activated carbon for solar-driven interfacial evaporation

Fargharazi,

Bagheri-Mohagheghi

2024

Mater Renew Sustain Energy

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Using the renewable energy, especially solar energy, is an environmental-friendly approach for seawater desalination. Solar evaporation is a promising freshwater harvesting strategy rich in energy, including solar and water energy. Herein, we propose a solar evaporation hybrid hydrogel including polyvinyl alcohol (PVA) and glutaraldehyde (GA) as a polymer network, semiconductor oxide nanoparticles (ZnO, CuO) and activated carbon as a photothermal material. Structural properties of hybrid hydrogel were characterized by X-ray diffraction (XRD) analysis, surface morphology by field emission scanning electron microscope (FE-SEM), chemical bonding by Fourier transform infrared spectroscopy (FTIR) and optical absorption and absorption coefficient (α) of components by UV–Vis spectroscopy. The result showed in visible region, PVA:ZnO:AC hydrogel nanocomposite has a strong absorption (55%) compare of the PVA:CuO:AC hydrogel nanocomposite (35%). In addition, by distillation measurements, the evaporator system demonstrated for PVA:CuO:AC and PVA:ZnO:AC Hydrogel an evaporation rate of 2.29 kg m−2 h−1 and 5.19 kg m−2 h−1 with the evaporation efficiency of 30.66% and 70.80%, respectively, under 0.1 sun irradiation. For PVA:CuO:AC hydrogel, the hardness of Caspian seawater decreased from 6648 to 115 ppm and ion conductance from 8641 (μS) to 244 (μS) and for the PVA:ZnO:AC Hydrogel decreased to 97 ppm and ion conductance to 206 (μS). Experiments showed that with changing type of the ZnO or CuO semiconductor oxide nanoparticles can effectively on regulate the optical properties of the evaporator. Eventually, this work begins a new point of synthesizing cost-effective photothermal absorbers based on metal oxides material and activated carbon nanocomposite.

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Hierarchical CuO/ZnO Heterojunction with Improved Spectrum Absorption for Interfacial Solar Steam Generation

Cited by 9 publications

References 81 publications

Laser‐Induced Porous Graphene/CuO Composite for Efficient Interfacial Solar Steam Generation

Laser‐Induced Porous Graphene/CuO Composite for Efficient Interfacial Solar Steam Generation

Examining the Potential of CuO/ZnBi2O4 Heterojunction Photocathode in the Photoelectrochemical Water-Splitting Applications

The photothermal properties of hydrogel nanocomposite embedded with ZnO/CuO based on PVA/GA/activated carbon for solar-driven interfacial evaporation

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