Solar-mediated oil-spill cleanup by a carbon dot-polyurethane sponge

Singh, Seema; Jelinek, Raz

doi:10.1016/j.carbon.2020.01.016

Cited by 68 publications

(30 citation statements)

References 45 publications

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“…[ 16 ] Combining the straight pores and efficient light‐to‐heat conversion, the oil absorption rate can reach up to 1550 mL m −2 in 30 s under 1 sun illumination. Other photothermal materials including CuO/CuS, [ 84 ] PDA, [ 85 ] PPy, [ 86 ] GO, and [ 87 ] carbon dots [ 88 ] have been also used to fabricate photothermal absorbents.…”

Section: Sustainable Applications Of Photothermal Materialsmentioning

confidence: 99%

Photothermal Devices for Sustainable Uses Beyond Desalination

Chen

Wang

et al. 2021

Adv Energy and Sustain Res

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Solar energy is an abundant clean and renewable energy source that has found wide uses in many energy‐intensive applications. It is normally transformed into other forms for certain applications, and light‐to‐heat conversion is one of the most common and efficient ways to utilize solar power. Previous reviews mostly focus on the solar‐driven evaporation for desalination, but few mention other applications in which the photothermal materials play a vital role. Herein, a Review regarding the sustainable uses of photothermal devices beyond desalination is presented. The recent developments of photothermal materials and progress on their applications in wastewater treatment, oil‐spill cleanup, moisture capture, energy harvesting during evaporation, sterilization, deicing, etc. are summarized. Herein, the working principles as well as property requirements in these applications are discussed and also the challenges with opportunities in future research are presented.

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Section: Sustainable Applications Of Photothermal Materialsmentioning

confidence: 99%

Photothermal Devices for Sustainable Uses Beyond Desalination

Chen

Wang

et al. 2021

Adv Energy and Sustain Res

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“…The result of porosity is the average value for 3 times of testing. The porosity is calculated by the following equation (Singh and Jelinek, 2020).…”

Section: Sponge Porosity Measurementmentioning

confidence: 99%

“…Interconnected macroporous commercial sponges have broad application prospects in the actual treatment of large-scale oil spills due to their low cost, large porosity, robust mechanical properties, and superior adsorption performance (Guselnikova et al, 2020;Goharshadi, 2020a, 2020b;Singh and…”

Section: Introductionmentioning

confidence: 99%

Solar-assisted isotropically thermoconductive sponge for highly viscous crude oil spill remediation

Huang

et al. 2021

iScience

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Efficiently cleaning up high-viscosity crude oil spills is still a serious global problem. In this paper, a composite filler PPy-polydopamine/BN (PPB) with high photothermal effect and high thermal conductivity was first prepared. Then the polyurethane sponge is decorated with polydimethylsiloxane and PPB to obtain a solar-assisted isotropically thermoconductive adsorbent (PPB@PU), which exhibits remarkable stability and durable mechanical properties. Meanwhile, the PPB@PU sponge has good thermal conductivity, and its surface temperature rises to 91 C in just 1 min under irradiation (1 sun). Therefore, the PPB@PU sponge can quickly heat and adsorb the crude oil contacted by the surface, significantly speed up the crude oil recovery process, and the adsorption capacity is as high as about 45 g/g. Finally, the oil adsorption method of the three-dimensional adsorbent is demonstrated, which provides a new idea for the subsequent development of advanced oil spill adsorbent.

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“…[ 13 ] CDs are broadly used in sensors, [ 14,15 ] cell imaging, [ 16,17 ] fluorescent ink, [ 18 ] and drug delivery [ 19 ] due to their excellent stable luminescence, low cost, facile surface modification, tunable emission, nontoxicity, water solubility, and biocompatibility. [ 20,21 ] Several published papers have discussed the application of CDs in adsorption; Seema and colleagues [ 22 ] reported a polyurethane sponge embedded in polydimethylsiloxane and CDs to investigate its oil absorption performance. The results showed that the addition of CDs can significantly improve the oil absorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Carbon dots crosslinked chitosan/cellulose sponge capture of methyl blue by an adsorption process

Yuan

Zhu

et al. 2021

Luminescence

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For environmental protection, organic dyes and solvents of industrial wastewater must be eliminated. Here, a citric acid‐based carbon dots (CA‐CDs) crosslinked chitosan/microcrystalline cellulose (CS/MCC/CA‐CDs) sponge was synthesized to study its adsorption performance for methyl blue (MB) dye. The morphology of the sponge was a tangled fibre with a bundle formed by hydrogen bonds between CA‐CDs and the CS/MCC composite matrix. The abundant amount of tangled fibre bundle units can offer plentiful active adsorption sites to collect the dye molecules. The adsorption capacity of the CS/MCC/CA‐CDs sponge toward MB was 306.8 mg/g at pH 10 and a temperature of 298 K. In addition, the pseudo‐second‐order kinetic model was matched with the adsorption kinetic experimental data, and the adsorption isotherm data can be described by the Langmuir models. This study proposed that the CS/MCC/CA‐CDs sponge adsorbent creates tremendous potential application value in wastewater treatment due to its fast kinetics, high adsorption capacity, simple preparation, and eco‐friendly properties.

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Solar-mediated oil-spill cleanup by a carbon dot-polyurethane sponge

Cited by 68 publications

References 45 publications

Photothermal Devices for Sustainable Uses Beyond Desalination

Photothermal Devices for Sustainable Uses Beyond Desalination

Solar-assisted isotropically thermoconductive sponge for highly viscous crude oil spill remediation

Carbon dots crosslinked chitosan/cellulose sponge capture of methyl blue by an adsorption process

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