Biomass-derived porous carbon for excellent low intensity solar steam generation and seawater desalination

Wilson, Higgins M.; Ahirrao, Dinesh J.; Gupta, Shobhanth P.; Jha, Neetu

doi:10.1016/j.solmat.2020.110604

Cited by 73 publications

(31 citation statements)

References 57 publications

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“…The occurrence of these broad peaks suggests that the attained AC is highly amorphous with a low degree of crystallinity. Also, the observed broad peaks can be attributed to the reflections from the planes (002) and (100) of hexagonal graphite 37 …”

Section: Resultsmentioning

confidence: 94%

Polyethylene terephthalate waste‐derived activated carbon for adsorptive desulfurization of dibenzothiophene from model gasoline: Kinetics and isotherms evaluation

Fadhil

Saeed

2020

Asia-Pacific J Chem Eng

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The present study concentrates on the preparation of activated carbon (AC) from a low‐cost precursor, namely, polyethylene terephthalate waste, as a potential alternative adsorbent to commercially activated carbon for desulfurization of model gasoline at ambient temperature. Polyethylene terephthalate was carbonized at 450°C, and the produced char was steam activated at 750°C for 90 min to prepare the AC. The morphology, crystallinity, and surface functional groups of as‐synthesized adsorbent were examined by scanning electron microscopy, X‐ray diffraction, and Fourier transform infrared spectroscopy, respectively. The so‐synthesized AC was employed in the adsorptive desulfurization of dibenzothiophene (DBT) from model gasoline. The effect of the initial concentration of DBT, AC dose, temperature, and contact time on the removal efficiency of DBT was investigated. The maximum desulfurization level (97.10%) was performed at 40°C using 0.30 g of the AC for 60 min. The Langmuir model best demonstrated the adsorption results with an adsorption capacity of 49.56 mg/g. The pseudo‐second‐order model best described the adsorption kinetics of DBT by the so‐synthesized AC. The obtained consequences exhibited that AC with high desulfurization capability could be synthesized from polyethylene terephthalate waste.

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Section: Resultsmentioning

confidence: 94%

Polyethylene terephthalate waste‐derived activated carbon for adsorptive desulfurization of dibenzothiophene from model gasoline: Kinetics and isotherms evaluation

Fadhil

Saeed

2020

Asia-Pacific J Chem Eng

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“…D, Water evaporation rate of the PPy-wax gourd evaporator compared to other evaporators. All tests were under 1 solar irradiation evaporator with that of PPy-based materials, 27,51,52 carbonized-based biomass materials, 28,[53][54][55] and plasma metal nanoparticle-based materials evaporators. 56,57 Figure 5D shows the highest evaporation rate among these evaporators, indicating that this work successfully prepared a PPy-wax gourd evaporator with excellent water evaporation performance.…”

Section: Resultsmentioning

confidence: 99%

A simple, flexible, and porous polypyrrole‐wax gourd evaporator with excellent light absorption for efficient solar steam generation

Han

et al. 2021

Intl J of Energy Research

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Solar interfacial water evaporation is considered as a potential green technology to solve the global shortage of freshwater resources. However, it is still an arduous task to develop a low-cost and efficient solar evaporator with a simple preparation method. Herein, a simple, flexible, and porous polypyrrole-wax gourd (PPy-wax gourd) biomass evaporator was reported for solar evaporation enhancement. Wax gourd had the advantages such as superhydrophilic wettability, massive microporous channels, and easy planting. PPy was a kind of black polymer with excellent light absorption ability, which greatly improved the light absorption of the PPy-wax gourd evaporator within a full spectrum of solar irradiance (300-2500 nm). The PPy-wax gourd evaporator prepared by

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“…[7][8][9][10] As core materials in DSSG system, the PTM used in high-efficiency DSSG experiments generally have the following characteristics:(1) excellent light absorption; (2) adequate water transportation; (3) large evaporation area attributed to the three dimensional structure and (4) high thermal management capabilities. [5] With the continuous efforts of predecessors, in the past few years, various nanomaterials, including carbonbased materials, [11][12][13][14][15][16][17][18] metals, [19][20][21][22] metal oxides/mixed metal oxides, [23][24][25][26][27] and polymers, [28][29][30] with strong lightabsorbing properties in broad solar spectra have been extensively studied. For example, Gu et al carbonized pomelo peel particles as photothermal conversion material then composited with the chitosan (CS) aerogel, exhibiting an evaporation rate of up to 1.78 kg m -2 h -1 .…”

Section: Introductionmentioning

confidence: 99%

Versatile PVA/CS/CuO aerogel with superior hydrophilic and mechanical properties towards efficient solar steam generation

Tian

Wang

et al. 2021

Nano Select

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In recent years, pursuing a high evaporation rate of solar steam generation (SSG) has been the focus of research for relieving the freshwater shortage. Scientists struggled to find perfect photothermal materials while the importance of substrate during the steam generation was often overlooked. Therefore, in this work, an aerogel substrate composed of polyvinyl alcohol (PVA) and chitosan (CS) has been designed for solar steam generation. The compounded aerogels synthesized via freeze-drying method not only retain the inherent characteristics of lightweight, porosity, and high specific surface area, but also inherit the advantages of PVA in water lock effect as well as CS in moisture absorption. The obtained PVA/CS/CuO aerogel coupling with high light absorption of CuO exhibited excellent steam generation capabilities, largely benefited from the superiority of the aerogel substrate. Under 1 sun solar illumination (1 kW m -2 ), it realized an evaporation rate as high as 2.14 Kg m -2 h -1 , which is superior to recently reported semiconductor solar evaporation system. The solar-to-vapor energy conversion efficiency of 87.1% is obtained. Due to the versatility of CuO, PVA/CS/CuO aerogel not only has excellent light-to-heat conversion performance, but also has good effects in antibacterial.

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Biomass-derived porous carbon for excellent low intensity solar steam generation and seawater desalination

Cited by 73 publications

References 57 publications

Polyethylene terephthalate waste‐derived activated carbon for adsorptive desulfurization of dibenzothiophene from model gasoline: Kinetics and isotherms evaluation

Polyethylene terephthalate waste‐derived activated carbon for adsorptive desulfurization of dibenzothiophene from model gasoline: Kinetics and isotherms evaluation

A simple, flexible, and porous polypyrrole‐wax gourd evaporator with excellent light absorption for efficient solar steam generation

Versatile PVA/CS/CuO aerogel with superior hydrophilic and mechanical properties towards efficient solar steam generation

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