Sorption of malachite green on vinyl-modified mesoporous poly(acrylic acid)/SiO2 composite nanofiber membranes

2012 ◽  
Vol 149 (1) ◽  
pp. 111-118 ◽  
Author(s):  
Ran Xu ◽  
Min Jia ◽  
Yalei Zhang ◽  
Fengting Li
Keyword(s):  
Acrylic Acid ◽  
Malachite Green ◽  
Composite Nanofiber ◽  
Nanofiber Membranes ◽  
Poly Acrylic Acid

Sorption of Ag+, Cu2+ on Thiol-Functionalized Poly (Acrylic Acid)/SiO2 Composite Nanofiber Membranes

2011 ◽  
Vol 356-360 ◽  
pp. 488-492
Author(s):  
Ran Xu ◽  
Min Jia ◽  
Feng Ting Li
Keyword(s):  
Acrylic Acid ◽  
Adsorption Capacity ◽  
Removal Rate ◽  
Sol Gel ◽  
Electrospinning Method ◽  
Composite Nanofiber ◽  
Pseudo Second Order ◽  
Nanofiber Membranes ◽  
Kinetics Of ◽  
Poly Acrylic Acid

Thiol-functionalized poly (acrylic acid)/SiO2 (PAA/SiO2) composite nanofiber membranes have been fabricated by a sol-gel electrospinning method and their adsorption capacity for Ag+, Cu2+ was investigated. Results showed the PAA/SiO2 fibers had a diameter between 300 nm-700 nm. FTIR results demonstrated that the mercapto groups have been introduced into the silica skeleton. The adsorption of Ag+, Cu2+ on the membranes fit the Redlich-Peterson isotherm model best. The equilibrium adsorption capacity of Ag+ (575.64 mg/g) on PAA/SiO2 nanofiber membranes is higher than Cu2+ (331.52 mg/g). The desorption rate reached 98% in 30 min. The removal rate of Ag+, Cu2+ still maintained above 75% after six regeneration cycles. Adsorption kinetics of Ag+, Cu2+ followed a pseudo-second-order model.

Efficient removal of malachite green dye using biodegradable graft copolymer derived from amylopectin and poly(acrylic acid)

2014 ◽  
Vol 111 ◽  
pp. 108-115 ◽  
Author(s):  
Amit Kumar Sarkar ◽  
Aniruddha Pal ◽  
Soumitra Ghorai ◽  
N.R. Mandre ◽  
Sagar Pal
Keyword(s):  
Acrylic Acid ◽  
Malachite Green ◽  
Graft Copolymer ◽  
Efficient Removal ◽  
Malachite Green Dye ◽  
Poly Acrylic Acid

In situ extracted poly(acrylic acid) contributing to electrospun nanofiber separators with precisely tuned pore structures for ultra-stable lithium–sulfur batteries

2019 ◽  
Vol 7 (7) ◽  
pp. 3253-3263 ◽  
Author(s):  
Xiaobo Zhu ◽  
Yue Ouyang ◽  
Jiawei Chen ◽  
Xinguo Zhu ◽  
Xiang Luo ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Electrospinning Process ◽  
Electrospun Nanofiber ◽  
Pore Structures ◽  
Lithium Sulfur Batteries ◽  
Composite Nanofiber ◽  
Lithium Sulfur ◽  
Poly Acrylic Acid

A negatively charged polyacrylonitrile/poly(acrylic acid) composite nanofiber separator with precisely tuned pore structures was prepared by a simple electrospinning process combined with ethanol steaming treatment for Li–S batteries.

Soft ionic liquid based resistive memory characteristics in a two terminal discrete polydimethylsiloxane cylindrical microchannel

2020 ◽  
Vol 8 (38) ◽  
pp. 13368-13374
Author(s):  
Muhammad Umair Khan ◽  
Gul Hassan ◽  
Jinho Bae
Keyword(s):  
Ionic Liquid ◽  
Acrylic Acid ◽  
Sodium Hydroxide ◽  
Sodium Salt ◽  
Resistive Memory ◽  
Cylindrical Microchannel ◽  
Memory Characteristics ◽  
Poly Acrylic Acid

This paper proposes a novel soft ionic liquid (IL) electrically functional device that displays resistive memory characteristics using poly(acrylic acid) partial sodium salt (PAA-Na+:H2O) solution gel and sodium hydroxide (NaOH) in a thin polydimethylsiloxane (PDMS) cylindrical microchannel.

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