Highly efficient clean water production: Reduced graphene oxide/ graphitic carbon nitride/wood

Karimi‐Nazarabad, Mahdi; Goharshadi, Elaheh Kafshdare; Mehrkhah, Roya; Davardoostmanesh, Maryam

doi:10.1016/j.seppur.2021.119788

Cited by 68 publications

(16 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure a shows the XRD patterns of prepared photocatalysts. The XRD pattern of CuAF has the main diffraction peaks at 2θ = 14.6, 29.7, 31.5, 33.1, and 47.5°, which were assigned to CuAF. , The characteristic peak of g-C 3 N 4 was observed at 2θ of 27.6° for the g-C 3 N 4 @CuAF composite . The prepared photocatalysts have a high crystallinity that is a positive merit in photoelectrochemical water splitting because crystalline defects can act as recombination centers for charge carriers …”

Section: Results and Discussionmentioning

confidence: 91%

“…Herein, inspired by the unique properties of g-C 3 N 4 such as its visible-light activity, attractive electronic structure, facile preparation, and high chemical stability, , the g-C 3 N 4 @CuAF core–shell nanocomposite was prepared to improve the efficiency of the photoelectrochemical oxygen evolution reaction (OER). Also, nickel hydroxide as a low-cost cocatalyst was loaded on the fabricated photoanodes for enhancing the charge transport in the surface of the electrode.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Copper–Azolate Framework Coated on g-C₃N₄ Nanosheets as a Core–Shell Heterojunction and Decorated with a Ni(OH)₂ Cocatalyst for Efficient Photoelectrochemical Water Splitting

2022

Self Cite

View full text Add to dashboard Cite

A novel photoanode was designed using the Cu–azolate framework (CuAF) and g-C3N4 as a core–shell nanocomposite (g-C3N4@CuAF) decorated with a Ni(OH)2 cocatalyst. The band structure of the g-C3N4@CuAF composite presented a heterojunction of staggered-gap type II. The transfer of photogenerated electrons and holes to relative low-energy bands of CuAF and g-C3N4 prevents their recombination so that the photocurrent density of g-C3N4@CuAF photoanode significantly increased compared to that of CuAF photoanode. The Ni(OH)2 cocatalyst loaded on the photoanodes provided a facile path for photogenerated holes to split water molecules. The photoconversion efficiency of the g-C3N4@CuAF/Ni(OH)2 photoanode was 6 times greater than that of the pristine CuAF. The photovoltage of 290 mV for the g-C3N4@CuAF/Ni(OH)2 photoanode compared to 189 mV for the CuAF/Ni(OH)2 photoanode indicates its deeper band bending. The g-C3N4@CuAF/Ni(OH)2 photoanode is stable under continuous light irradiation for 1 h.

show abstract

Section: Results and Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Copper–Azolate Framework Coated on g-C₃N₄ Nanosheets as a Core–Shell Heterojunction and Decorated with a Ni(OH)₂ Cocatalyst for Efficient Photoelectrochemical Water Splitting

2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…The detailed summary of semiconductor‐based interfacial solar evaporators is given in Table 9 , including using MoS 2 , [ 261,263,273,276,277 ] MoC, [ 267,269 ] TiO 2 , [ 278–282 ] CuO, [ 264–266 ] g‐C 3 N 4 , [ 283 ] bimetal semiconductors, [ 284,285 ] and hybrids with carbon materials such as PDA [ 265,284 ] and rGO [ 286,287 ] on various kinds of substrates such as foam/aerogel, hydrogel, membrane, mesh, wood, and textile. For instance, Xiao et al [ 262 ] fabricated a MoS 2 /sodium alginate hydrogel on the melamine sponge by simple dipping and drying followed by crosslinking method.…”

Section: Semiconductor‐based Interfacial Solar Evaporatorsmentioning

confidence: 99%

Systematic Review of Material and Structural Design in Interfacial Solar Evaporators for Clean Water Production

et al. 2023

View full text Add to dashboard Cite

Rational and sustainable utilization of resources is critical for the continuous development of this society. Solar energy, as one of the renewables, shows great potential in replacing part of the traditional energy supplies since it is clean, abundant, and easily convertible to thermal, electrical, and biological energies. Using solar energy as the green driving force, interfacial solar evaporation is a promising way for clean water production to alleviate global water shortage, taking advantage of its high evaporation efficiency (more than 80%) and strong adaptability toward various water sources and fields. In recent years, various kinds of materials with diverse designs have been synthesized and applied in interfacial solar evaporation for clean water production. Herein, recent progress in interfacial solar evaporators for clean water production is systematically reviewed, based on the photothermal conversion mechanisms of solar absorbers, including carbonous, semiconductor‐based, and plasmatic ones. Furthermore, key design factors and strategies in interfacial solar evaporators are reviewed and discussed from material and structural design point of view, such as water transport, thermal management, latent heat for water vaporization, and salt accumulation. Finally, some perspectives related to resolving existing problems in the field are given.

show abstract

“…RGO absorbs sunlight due to its black color and π‐conjugated structure [59] . Pd NPs are plasmonic NPs and absorb visible light due to the effects of localized surface plasmon resonance (SPR).…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Photoabsorber for Highly Efficient Interfacial Solar Steam Generation and Wastewater Treatment

Mehrkhah

Goharshadi

et al. 2023

ChemistrySelect

Self Cite

View full text Add to dashboard Cite

Interfacial solar steam generation (ISSG) is a sustainable and environmental-friendly technology for seawater desalination and wastewater purification using green and sustainable solar energy. Herein, a robust and efficient interfacial solar steam generation device or photoabsorber for ISSG of seawater and wastewater treatment was designed by coating wood with trace amount of Pd nanoparticles (NPs) and reduced graphene oxide (RGO). High evaporation flux of 5.25 kg m À 2 h À 1 was achieved by Pd20/RGO80/wood (a piece of wood was coated with 80 and 20 mg L À 1 of Pd NPs and RGO as a top and bottom layer, respectively) under 3 kW m À 2 . The value of electrical conductivity of seawater decreased from 6000.0 to 5.8 μS cm À 1 after desalination. The durability test showed the photoabsorber was stable for 30 cycles. The total cost to evaporation rate of the device was calculated as 0.29�0.003 USD/(cm 3 h À 1 ). The photoabsorber also showed excellent performance in wastewater treatment in removal of dyes of methylene blue and Reactive blue 5. Also, the concentration of heavy metals of Zn 2 + , Cd 2 + , Pb 2 + , Fe 2 + , Ni 2 + , and Cr 6 + reduced from 1000 ppm to near zero in the presence of photoabsorber.

show abstract

Highly efficient clean water production: Reduced graphene oxide/ graphitic carbon nitride/wood

Cited by 68 publications

References 72 publications

Copper–Azolate Framework Coated on g-C₃N₄ Nanosheets as a Core–Shell Heterojunction and Decorated with a Ni(OH)₂ Cocatalyst for Efficient Photoelectrochemical Water Splitting

Copper–Azolate Framework Coated on g-C₃N₄ Nanosheets as a Core–Shell Heterojunction and Decorated with a Ni(OH)₂ Cocatalyst for Efficient Photoelectrochemical Water Splitting

Systematic Review of Material and Structural Design in Interfacial Solar Evaporators for Clean Water Production

Multifunctional Photoabsorber for Highly Efficient Interfacial Solar Steam Generation and Wastewater Treatment

Contact Info

Product

Resources

About

Highly efficient clean water production: Reduced graphene oxide/ graphitic carbon nitride/wood

Cited by 68 publications

References 72 publications

Copper–Azolate Framework Coated on g-C3N4 Nanosheets as a Core–Shell Heterojunction and Decorated with a Ni(OH)2 Cocatalyst for Efficient Photoelectrochemical Water Splitting

Copper–Azolate Framework Coated on g-C3N4 Nanosheets as a Core–Shell Heterojunction and Decorated with a Ni(OH)2 Cocatalyst for Efficient Photoelectrochemical Water Splitting

Systematic Review of Material and Structural Design in Interfacial Solar Evaporators for Clean Water Production

Multifunctional Photoabsorber for Highly Efficient Interfacial Solar Steam Generation and Wastewater Treatment

Contact Info

Product

Resources

About

Copper–Azolate Framework Coated on g-C₃N₄ Nanosheets as a Core–Shell Heterojunction and Decorated with a Ni(OH)₂ Cocatalyst for Efficient Photoelectrochemical Water Splitting

Copper–Azolate Framework Coated on g-C₃N₄ Nanosheets as a Core–Shell Heterojunction and Decorated with a Ni(OH)₂ Cocatalyst for Efficient Photoelectrochemical Water Splitting