Free-standing, spider-web-like polyamide/carbon nanotube composite nanofibrous membrane impregnated with polyethyleneimine for CO2 capture

Zainab, Ghazala; Iqbal, Nousheen; Babar, Aijaz Ahmed; Huang, Changfeng; Wang, Xianfeng; Yu, Jianyong; Ding, Bin

doi:10.1016/j.coco.2017.09.001

Cited by 62 publications

(28 citation statements)

References 43 publications

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“…In another study, polyamide-6/amine-functionalized CNT composite nanofibers were impregnated with polyethyleneimine (PEI) to enhance CO 2 adsorption capacity and selectivity. As a result, maximum adsorption capacity of 1.16 mmol CO 2 /g-adsorbent was achieved, which is comparable with other polymer-based CO 2 adsorbents (Zainab et al, 2017). PAN nanofibers were also functionalized with different amines and tested for efficient transport of humid CO 2 .…”

Section: Introductionsupporting

confidence: 64%

“…It is worth noting that the regeneration process was performed at 80 • C for 15 min, which is considered as low temperature and short time compared to the regeneration process of other amine-bearing CO 2 adsorbents. For example, regeneration temperature/time of some of the adsorbents reported in the literature was: 105 • C/40 min for PEI-containing polyamide-6 (Zainab et al, 2017), 130 • C/180 min for Aziridine grafted SBA-15 (Hicks et al, 2008), 120 • C/30 min for PEI-modified glass microfibers (Li et al, 2008) and benzyl amine-bearing ion exchange resin (Alesi and Kitchin, 2012), 90 • C/60 min for amine-based Nano-fibrillated cellulose (Gebald et al, 2011), and 100 • C/20 min for triethylenetetramine-bearing polypropylene microfibers (Zhuang et al, 2013). It decreases energy and time requirements for the regeneration process, making the new materials more viable for industrial applications.…”

Section: Regenerationmentioning

confidence: 99%

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Carbon Dioxide Adsorption on Grafted Nanofibrous Adsorbents Functionalized Using Different Amines

et al. 2019

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Section: Introductionsupporting

confidence: 64%

Section: Regenerationmentioning

confidence: 99%

Carbon Dioxide Adsorption on Grafted Nanofibrous Adsorbents Functionalized Using Different Amines

et al. 2019

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“…Particularly due to their relatively easy synthesis process as well introducing a huge variety of amide solvents possibilities that can be utilised. ,135,164,175,178,181,201,204,214,215,222,223,238,242,246,260,278,285,298,304,307,318,328,329,335,350,361,369,375,382,388,403,451,480,481,486,500,518]. It was found that 93 studies (18%) showcased the use of general organic solvents such as alcohols, acids and salts[23,27,30,31,44,46,48,62,65,66,75-78,80,84,88,102,116, 118,132,…”

mentioning

confidence: 99%

CO2 capture using membrane contactors: a systematic literature review

Hafeez

Safdar

Pallari

et al. 2020

Front. Chem. Sci. Eng.

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With fossil fuel being the major source of energy, CO2 emission levels need to be reduced to a minimal amount namely from anthropogenic sources. Energy consumption is expected to rise by 48% in the next 30 years, and global warming is becoming an alarming issue which needs to be addressed on a thorough technical basis. Nonetheless, exploring CO2 capture using membrane contactor technology has shown great potential to be applied and utilised by industry to deal with post- and pre-combustion of CO2. A systematic review of the literature has been conducted to analyse and assess CO2 removal using membrane contactors for capturing techniques in industrial processes. The review began with a total of 2650 papers, which were obtained from three major databases, and then were excluded down to a final number of 525 papers following a defined set of criteria. The results showed that the use of hollow fibre membranes have demonstrated popularity, as well as the use of amine solvents for CO2 removal. This current systematic review in CO2 removal and capture is an important milestone in the synthesis of up to date research with the potential to serve as a benchmark databank for further research in similar areas of work. This study provides the first systematic enquiry in the evidence to research further sustainable methods to capture and separate CO2.

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“…The electrospinning technique is a facile and low-cost method to prepare nanoscale non-woven fiber scaffolds with high surface area and large porosity [23,24,25,26,27,28,29,30,31,32,33]. It has also been applied to construct piezoresistive sensors containing fiber network layers.…”

Section: Introductionmentioning

confidence: 99%

A Sandwich-Structured Piezoresistive Sensor with Electrospun Nanofiber Mats as Supporting, Sensing, and Packaging Layers

Zhao

et al. 2018

Polymers

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Electrospun nanofiber mats have been used as sensing elements to construct piezoresistive devices due to their large surface area and high porosity. However, they have not been utilized as skin-contact supporting layers to package conductive nanofiber networks for the fabrication of piezoresistive sensors. In this work, we developed a sandwich-structured pressure sensor, which can sensitively monitor human motions and vital signs, with electrospun nanofiber mats as supporting, sensing, and packaging layers. The nanofiber mats were prepared by electrospinning with biocompatible poly (L-lactide) (PLA), silk fibroin (SF), and collagen (COL) as raw materials. The synthesized PLA-SF-COL mat possesses a non-woven structure with a fiber diameter of 122 ± 28 nm and a film thickness of 37 ± 5.3 µm. Polypyrrole (PPy) nanoparticles were grown in-situ on the mat to form a conductive layer. After stacking the pristine and conductive mats to form a PLA-SF-COL mat/(PPy-coated mat) 2 structure, another layer was electrospun to pack the multilayers for the construction of a sandwich-structured piezoresistive sensor. The as-prepared device can sensitively detect external pressures caused by coin loading and finger tapping/pressing. It can also tolerate more than 600 times of pressing without affecting its sensing capability. The human body-attached experiments further demonstrate that the sensor could real-time monitor finger/arm bending, arterial pulse, respiration rate, and speaking-caused throat vibration. The electrospinning-based fabrication may be used as a facile and low-cost strategy to produce flexible piezoresistive sensors with excellent skin-compatibility and great pressure sensing capability.

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Free-standing, spider-web-like polyamide/carbon nanotube composite nanofibrous membrane impregnated with polyethyleneimine for CO2 capture

Cited by 62 publications

References 43 publications

Carbon Dioxide Adsorption on Grafted Nanofibrous Adsorbents Functionalized Using Different Amines

Carbon Dioxide Adsorption on Grafted Nanofibrous Adsorbents Functionalized Using Different Amines

CO2 capture using membrane contactors: a systematic literature review

A Sandwich-Structured Piezoresistive Sensor with Electrospun Nanofiber Mats as Supporting, Sensing, and Packaging Layers

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