Carbohydrazide modified polyacrylonitrile fiber as efficient and recyclable furfural adsorbent

2021 ◽  
pp. 105071
Author(s):  
Xiaoting Li ◽  
Jian Cao ◽  
Yali Zhao ◽  
Ning Ma ◽  
Minli Tao ◽  
...  
Keyword(s):  
Polyacrylonitrile Fiber

All-inorganic perovskite quantum dots-based electrospun polyacrylonitrile fiber for ultra-sensitive trace-recording

2021 ◽  
Author(s):  
Yanyan Li ◽  
Lifan Shen ◽  
E.Y.B. Pun ◽  
Hai Lin
Keyword(s):  
Quantum Dots ◽  
Laser Excitation ◽  
Green Emission ◽  
Polyacrylonitrile Fiber ◽  
Enhanced Fluorescence ◽  
Electrospinning Technique ◽  
Band Emission ◽  
Pan Fiber ◽  
Perovskite Quantum Dots ◽  
Biological Protection

Abstract All-inorganic dual-phase CsPbBr3-Cs4PbBr6 quantum dots (CPB QDs)-based polyacrylonitrile (PAN) fiber synthesized by supersaturated recrystallization and electrospinning technique possesses characteristics of homogeneous morphology, high crystallinity and solution sensitivity. Under 365 nm laser excitation, CPB@PAN fiber exhibits surprising trace-recording capability attributing to the splash-enhanced fluorescence (FL) performance with a narrow-band emission at 477-515 nm. In the process of ethanol-anhydrous (EA) and water splashing, the CPB@PAN fiber presents conspicuous blue and green emission when contacting with EA and water, and maintains intense blue and green FL for more than 4 months. These experimental and theoretical findings provide a facile technology for the development of biological protection display, biotic detection and moisture-proof forewarning based on the trace-recording performance of CPB@PAN fiber.

Thermal drawing of polyacrylonitrile fiber after plasticization drawing with a different ratio

1993 ◽  
Vol 24 (4) ◽  
pp. 304-306
Author(s):  
M. V. Rumyantseva ◽  
B. A. Fomenko ◽  
E. A. Pakshver ◽  
V. D. Zhabin ◽  
Yu. A. Tolkachev
Keyword(s):  
Polyacrylonitrile Fiber ◽  
Thermal Drawing

Freestanding porous sulfurized polyacrylonitrile fiber as a cathode material for advanced lithium sulfur batteries

2019 ◽  
Vol 472 ◽  
pp. 135-142 ◽  
Author(s):  
Ying Liu ◽  
Anupriya K. Haridas ◽  
Younki Lee ◽  
Kwon-Koo Cho ◽  
Jou-Hyeon Ahn
Keyword(s):  
Cathode Material ◽  
Polyacrylonitrile Fiber ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Deciphering the Adsorption Behavior of Volatile Organic Compounds with Electrospun Polyacrylonitrile/Molecular Sieve Nanocomposites

2019 ◽  
Vol 19 (11) ◽  
pp. 7315-7319 ◽  
Author(s):  
Yi-Xin Wang ◽  
Hong Tao ◽  
Min-Nan Chen ◽  
Ling-Shao ◽  
Guang-Feng Shang ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Adsorption Capacity ◽  
Organic Compounds ◽  
Molecular Sieve ◽  
Fiber Surface ◽  
Polyacrylonitrile Fiber ◽  
Volatile Organic ◽  
New Type ◽  
Short Time ◽  
Adsorption Desorption

In this study, a new type of molecular sieve/polyacrylonitrile fiber (M-PAN) was prepared by electrospinning to adsorb atmospheric volatile organic compounds (VOCs). The suitable content of molecular sieve in nanocomposites was also determined for achieving maximum VOCs adsorption capacity. SEM, TEM and N2 adsorption/desorption analyzer were performed for characterization of the surface morphology, structural properties, surface area and pore size. A part of molecular sieve is exposed on the fiber surface where VOCs can be adsorbed efficiently in a short time. Acetone was used as a challenge pollutant to evaluate the adsorption of VOCs at different recycling times and types of electrospinning nanofibers. The adsorption capacity of 6M-PAN (60% weight of molecular sieve) nanofiber reached 58.2 μg g−1 and the reused nanofibers nearly had the same adsorption capacity as the newly prepared nanofibers after several times of recirculation.

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