Interfacial solar steam generator by MWCNTs/carbon black nanoparticles coated wood

Ge-Zhang, Shangjie; Yang, Hong; Mu, Hongbo

doi:10.1016/j.aej.2022.08.002

Cited by 16 publications

(7 citation statements)

References 58 publications

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“…Carbon Black (CB) is a very fine powder of elemental carbon consisting of fused particle aggregates and nearly spherical colloidal particles 1 , 2 . It typically has an elemental carbon content of over 97%, with varying proportions of sulphur, oxygen, and hydrogen 3 .…”

Section: Introductionmentioning

confidence: 99%

“…Many diverse fields, including electronics and fuel cells 6 , lithium-ion secondary batteries 7 , hydrogen storage 8 , chemical sensors 9 , biosensor 10 , solar generator 1 , 11 , nanoscale electronic devices and supercapacitors 12 as a good conductor of electricity use carbon black in a variety of ways. Over 70% of CB application is as a reinforcing phase in automobile tires and pigment.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of carbon black nanoparticles from green algae and sugarcane bagasse

Elmaghraby,

Hassaan,

Zien

et al. 2024

Sci Rep

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There are several industrial uses for carbon black (CB), an extremely fine powdered form of elemental carbon that is made up of coalesced particle aggregates and almost spherical colloidal particles. Most carbon black is produced from petroleum-derived feedstock, so there is a need to find an alternative method to produce CB, which relies on renewable resources such as algae and agricultural waste. A process involving hydrolysis, carbonization, and pyrolysis of green algae and sugarcane bagasse was developed, as the optimal hydrolysis conditions (16N sulfuric acid, 70 °C, 1 h, 1:30 g/ml GA or SC to sulfuric acid ratio), a hydrolysis ratio of 62% for SC and 85% for GA were achieved. The acidic solution was carbonized using a water bath, and the solid carbon was then further pyrolyzed at 900 °C. The obtained carbon black has a high carbon content of about 90% which is confirmed by EDX, XRD, and XPS analysis. By comparison carbon black from sugar cane bagasse (CBB) and carbon black from green algae Ulva lactuca (CBG) with commercial carbon black (CCB) it showed the same morphology which was confirmed by SEM analysis. The BET data, showed the high specific surface area of prepared CB, which was 605 (m2/g) for CBB and 424 (m2/g) for CBG compared with commercial carbon black (CBB) was 50 (m2/g), also the mean pore diameter of CBB, CBG and CCB indicated that CBB and CBG were rich in micropores, but CCB was rich in mesoporous according to IUPAC classification. This study might have created a technique that can be used to make carbon black from different kinds of biomass.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of carbon black nanoparticles from green algae and sugarcane bagasse

Elmaghraby,

Hassaan,

Zien

et al. 2024

Sci Rep

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“…Therefore, these advantages make it more suitable with respect to other desalination techniques for low infrastructure regions especially in parts of the world that have plenty of sunlight. [16–18] The ISSG devices or photoabsorbers are commonly composed of two layers with distinct functions [19–22] . The upper layer made of a photothermal material absorbs efficiently sunlight and converts it into heat and the bottom layer transports saline water from the bulk to the surface.…”

Section: Introductionmentioning

confidence: 99%

“…[16][17][18] The ISSG devices or photoabsorbers are commonly composed of two layers with distinct functions. [19][20][21][22] The upper layer made of a photothermal material absorbs efficiently sunlight and converts it into heat and the bottom layer transports saline water from the bulk to the surface. The generated heat is localized and the steam is produced at the water-air interface of a photoabsorber (Figure S1).…”

Section: Introductionmentioning

confidence: 99%

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

Mehrkhah

Goharshadi

et al. 2023

ChemistrySelect

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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.

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“…12,13 However, as a type of polymer powder, PES powders exhibit a relatively low absorption rate for infrared laser and cannot be sintered by an infrared laser at a low power of 20 W. Carbon black (CB) is an excellent near-infrared laser absorbing dye with good coloring ability, high thermal conductivity, low price, and stable performance. [14][15][16] Herein, to manufacture low-cost, miniaturized LS equipment, LS processing with a fiber laser at a wavelength of 1064 nm was performed on PES/CB powders without any heating conditions. This is the first work to prepare composite powders that combine PES and CB.…”

Section: Introductionmentioning

confidence: 99%

Laser sintering of polyether sulfone/carbon black composite powders using near-infrared laser

Meng

Yanling

et al. 2023

Journal of Thermoplastic Composite Materials

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Low-cost miniaturized laser sintering equipment remains lacking at present; therefore, the development of laser sintering technology and its widespread applications are significantly hindered. Traditional laser sintering equipment is composed of a carbon dioxide laser, water cooling system, powder-box-heating device, and thermal insulation device. Such requirements are the main factors limiting the miniaturization and economic efficiency of laser sintering equipment. Herein, a laser-sintered material was fabricated by sintering using a near-infrared laser light source with a wavelength of 1064 nm without heating, and its microstructure and properties were systematically studied. Polyether sulfone (PES) and carbon black (CB) powders were selected as the raw materials for preparing PES/CB composites by mechanical mixing. For synthesizing the PES/CB composite powders, the CB powder content was varied within the range of 0.25%–1.5%. The PES/CB powders with different component ratios were subjected to laser sintering treatment, and the corresponding microstructural evolutions of the sintered parts were analyzed. The effects of different component ratios on the mechanical properties and dimensional accuracy of the sintered part were investigated, and the optimal content of CB powders of the PES/CB composite material was determined. Additionally, the effects of laser power (10–18 W), scanning speed (1200–1600 mm/s), and scanning spacing (0.04–0.08 mm) on the forming quality of the sintered parts of the PES/CB composite powders were evaluated. The processing parameters of the laser sintering of PES/CB composite powders were explored using orthogonal experimental tests and optimized using the comprehensive weighted method.

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Interfacial solar steam generator by MWCNTs/carbon black nanoparticles coated wood

Cited by 16 publications

References 58 publications

Fabrication of carbon black nanoparticles from green algae and sugarcane bagasse

Fabrication of carbon black nanoparticles from green algae and sugarcane bagasse

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

Laser sintering of polyether sulfone/carbon black composite powders using near-infrared laser

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