Flame retardant, superhydrophobic, and superoleophilic reduced graphene oxide/orthoaminophenol polyurethane sponge for efficient oil/water separation

Jamsaz, Azam; Goharshadi, Elaheh Kafshdare

doi:10.1016/j.molliq.2020.112979

Cited by 112 publications

(42 citation statements)

References 82 publications

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Section: Resultsmentioning

confidence: 99%

“…As a result, our composite aerogel presents much higher adsorption capacity compared with other previously reported oil/water separation materials (Figure 6E) such as poly(lactic acid) foam (12−31 times), [56] graphene/ polyurethane sponges (25.8-44.1 times), [57] polyimide/MXene aerogels (18-58 times), [58] etc. [59][60][61][62][63][64][65][66] Subsequently, the cyclic adsorption property of the PINF/ MXene composite aerogel for ethanol was further explored using the squeezing approach to evaluate its recyclability. As shown in Figure 6F, the adsorption capacity first displays a slight decrease trend due to the adjustment of the porous structure during cyclic compression process, but it quickly turns to be stable in the following repetitions and all the absorbed ethanol can be completely squeezed out in each cycle, showing excellent structure stability of the composite aerogel.…”

Section: Resultsmentioning

confidence: 99%

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Lightweight, Superelastic, and Hydrophobic Polyimide Nanofiber /MXene Composite Aerogel for Wearable Piezoresistive Sensor and Oil/Water Separation Applications

Liu

Chen

Zheng

et al. 2021

Adv Funct Materials

419

285

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Inspired by the ultralight and structurally robust spider webs, flexible nanofibril‐assembled aerogels with intriguing attributes have been designed for achieving promising performances in various applications. Here, conductive polyimide nanofiber (PINF)/MXene composite aerogel with typical “layer‐strut” bracing hierarchical nanofibrous cellular structure has been developed via the freeze‐drying and thermal imidization process. Benefiting from the porous architecture and robust bonding between PINF and MXene, the PINF/MXene composite aerogel exhibits an ultralow density (9.98 mg cm−3), intriguing temperature tolerance from ‐50 to 250 °C, superior compressibility and recoverability (up to 90% strain), and excellent fatigue resistance over 1000 cycles. The composite aerogel can be used as a piezoresistive sensor, with an outstanding sensing capacity up to 90% strain (corresponding 85.21 kPa), ultralow detection limit of 0.5% strain (corresponding 0.01 kPa), robust fatigue resistance over 1000 cycles, excellent piezoresistive stability and reproductivity in extremely harsh environments. Furthermore, the composite aerogel also exhibits superior oil/water separation properties such as high adsorption capacity (55.85 to 135.29 g g−1) and stable recyclability due to its hydrophobicity and robust hierarchical porous structure. It is expected that the designed PINF/MXene composite aerogel can supply a new multifunctional platform for human bodily motion/physical signals detection and high‐efficient oil/water separation.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Lightweight, Superelastic, and Hydrophobic Polyimide Nanofiber /MXene Composite Aerogel for Wearable Piezoresistive Sensor and Oil/Water Separation Applications

Liu

Chen

Zheng

et al. 2021

Adv Funct Materials

419

285

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“…O derramamento de resíduos oleosos na água é um problema ambiental recorrente em todo o mundo e possui impactos catastróficos para os ecossistemas marinhos (Anju & Renuka, 2020;Min et al, 2019;Ge, 2016;Shanhu et al, 2015;Jamsaz et al, 2020;Yuying et al, 2020;Lei et al, 2017;Ge et al, 2015;Fenner et al, 2018).…”

Section: Introductionunclassified

“…Uma diversidade de tecnologias, incluindo métodos físicos, químicos e biológicos foram desenvolvidos para o tratamento de água contaminada. Contudo, muito desses métodos como a queima controlada, o uso de dispersantes químicos e solidificantes, além da alta perda e operação não portátil, ocasionam poluição secundária e problemas ecológicos adicionais (Shanhu et al, 2015;Jamsaz et al, 2020;Yuying et al, 2020).…”

Section: Introductionunclassified

Caracterização Microestrutural E Perfil De Microdureza De Aço Api 5l X80 Obtido Por Processo TMCR

Júnior¹,

Cruz²,

Silva³

et al. 2021

Engenharia De Materiais E Metalúrgica: Tudo À Sua Volta 2

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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“…To overcome the above problems, oil–water separation materials with superhydrophobic and flame‐retardant functions were simultaneously developed. [ 10–12 ] However, the preparation of flame retardant and superhydrophobic materials based on environmentally friendly materials has been little reported. In particular, a large number of oil–water separation materials would be discarded and secondary pollution formed.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Bio‐Based Superhydrophobic and Flame‐Retardant Cotton Fabric for Oil–Water Separation

Luo

Wang

et al. 2020

Macro Materials & Eng

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It is an urgent task to develop environmentally friendly and flame retardant durable oil–water separation materials. A green TA/B@PDA coating derived from bio‐based materials such as tannic acid (TA), borax (B), and polydopamine (PDA) is deposited on cotton fabric through facile dip‐coating method and step‐by‐step assembly method. A series of methods are used to characterize the as‐prepared cotton fabric. PDA provides a reactive interface, while n‐dodecyl mercaptan enhances the hydrophobicity of the surface with a water contact angle (WCA) and shedding angle (SA) of 153.3° ± 1.2° and 9° ± 0.8°, respectively. The as‐prepared fabric exhibits outstanding oil/water separation efficiency (>98.5%) for various types of oil, and wear resistivity, washability, and reusability. Meanwhile, combustion test and limit oxygen index (LOI) test show that the modified fabric has excellent flame retardant performance. The cone calorimeter test (CCT) indicates that compared with the pristine cotton fabric, the peak heat release rate (PHRR) and total heat release (THR) of the TA/B@PDA cotton is decreased by 50% and 32%, respectively. Through the analysis of char residues, the flame retardant mechanism is studied. This method provides a general green way for the construction of superhydrophobic surfaces, and can be further applied to the broad fields of durable oil–water separation.

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Flame retardant, superhydrophobic, and superoleophilic reduced graphene oxide/orthoaminophenol polyurethane sponge for efficient oil/water separation

Cited by 112 publications

References 82 publications

Lightweight, Superelastic, and Hydrophobic Polyimide Nanofiber /MXene Composite Aerogel for Wearable Piezoresistive Sensor and Oil/Water Separation Applications

Lightweight, Superelastic, and Hydrophobic Polyimide Nanofiber /MXene Composite Aerogel for Wearable Piezoresistive Sensor and Oil/Water Separation Applications

Caracterização Microestrutural E Perfil De Microdureza De Aço Api 5l X80 Obtido Por Processo TMCR

Fabrication of a Bio‐Based Superhydrophobic and Flame‐Retardant Cotton Fabric for Oil–Water Separation

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