Electrospun AOPAN/RC blend nanofiber membrane for efficient removal of heavy metal ions from water

Feng, Quan; Wu, Dehai; Zhao, Yong; Wei, Anfang; Wei, Qufu; Fong, Hao

doi:10.1016/j.jhazmat.2017.11.035

Cited by 145 publications

(48 citation statements)

References 34 publications

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“…3(b), the Cd 3d5/2 and Cd 3d3/2 peaks appeared at 405.64 and 412.40 eV, respectively. The difference value of two peaks was 6.76 eV, which were consistent with the standard value 12 . The peak of 405.64 eV was ascribed to Cd 2+ interaction with the oxygen in C-O and O-C-O, which led www.nature.com/scientificreports www.nature.com/scientificreports/ to a decrease of the BE of Cd 3d5/2.…”

Section: Resultssupporting

confidence: 87%

High and fast adsorption of Cd(II) and Pb(II) ions from aqueous solutions by a waste biomass based hydrogel

Zhang¹,

Yin²,

Ji³

et al. 2020

Sci Rep

100

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A waste biomass based hydrogel soybean residue-poly(acrylic acid) (SR-pAA) was prepared through a fast one-step reaction by UV radiation technology. SR-pAA was used to remove cd(ii) and pb(ii) ions from aqueous solutions. Effect of pH value, temperature, initial concentration, contact time, competitive ions in the solutions on metal ions adsorption and desorption/regeneration capacity of SR-PAA was discussed in detailed. It was found that the adsorption equilibrium was achieved within 20 min, and maximum adsorption for Cd(II) and Pb(II) ions were 1.43 and 2.04 mmol g −1 , respectively. Besides, adsorption thermodynamic analysis indicates that the process of cd(ii) and pb(ii) ions adsorption was spontaneous, feasible and exothermic in nature. And experimental data fitted the pseudo-second-order and freundlich isotherm model well. Moreover, XpS spectra analysis proves that the metal ions were adsorbed on SR-pAA due to the interaction of carboxyl, hydroxyl and amine with these ions as ionic bond, coordination bond and electrostatic interaction. Increasing industrialization has brought great challenges to the environment. Like China, many countries face more and more enormous environmental problems, especially water pollution caused by heavy metal ions 1-3. Among various heavy metals, Cd(II) and Pb(II) have strong toxicity, which can damage to animals and human bodies seriously though the food chain. The report from United States Environmental Protection Agency showed that cadmium can cause respiratory cancers, for example, lung carcinoma 4 , and lead can cause cognitive dysfunction in children, hypertension, immune system and reproductive system diseases 5. Consequently, it is particularly necessary to remove the heavy metal ions from the wastewater before discharge it into the environment. Adsorption is a common method to remove various heavy metal ions from the wastewater. Many kinds of adsorbents, including activated carbon 6 , inorganic minerals 7 , biomass adsorbents 8-10 , and polymer 11-14 , are used to remove the metal ions from the wastewater. Metal ions adsorption capability of an adsorbent is mainly controlled by the surface active sites (functional groups such as carboxyl, hydroxyl, amino and hydrosulphonyl) of the adsorbent 15. The metal ions that contact with the adsorbent surfaces may be attached to the surfaces of the adsorbent according to physical or chemical interaction. Then those metal ions can be adsorbed on the adsorbent by ion exchange, coordination interaction, electrostatic interaction and physical adsorption, which are considered to be the main mechanism of most adsorbents to remove metal ions. In particular, it has been reported that the group of carboxyl, hydroxyl and amino are extremely advantageous to the metal ions removal from various aqueous solutions 6,9,16-19. Hence, many researchers are interested in the functional groups modified adsorbents to enhance the capability of metal ions removal. However, an efficient, low-cost, easily obtained and environmental friendly adsorbent is ve...

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Section: Resultssupporting

confidence: 87%

High and fast adsorption of Cd(II) and Pb(II) ions from aqueous solutions by a waste biomass based hydrogel

Zhang¹,

Yin²,

Ji³

et al. 2020

Sci Rep

100

View full text Add to dashboard Cite

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“…However, there are still a number of challenges that Fig. 20.12 Desorption percentages of Fe(III), Cu(II), and Cd(II) ions upon regeneration of electrospun AOPAN/RC blend nanofiber membranes for 1-5 cycles (Feng et al 2018) U N C O R R E C T E D P R O O F needed to be overcome before full commercialization can be realized especially for emerging applications. One of the biggest challenges that many are always curious about is the upscaling potential of the nanofiber fabrication.…”

Section: Summary and Future Prospectsmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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Materials of nanofibrous morphology and structure are attractive for solving environmental problems including water-related issues. In recent years, increasing interest is geared on the use of specially designed electrospun nanofibers for water/wastewater treatment applications. The nanofibers can be used in the form of nonwoven structures, as stand-alone membranes, as support layer or as a surface modification layer that enables added functionality to a composite material. Continuous research has been carried out in optimizing the nanofiber membrane design and structure by manipulating material, process and surrounding parameters in the electrospinning process. This chapter highlights the recent advances and developments on the potential and application of electrospun nanofibers for water/ wastewater treatment. Comprehensive discussion is presented here on various designs and structures of nanofibers and their applications to water-related treatment and the future prospects of such materials.

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“…The adsorption capacity of nanofiber membranes for Fe (III), Cu (II), and Cd (II) of 7.47, 4.26, and 1.13 mmol g −1 , respectively. They observed desorption rate of more than 80%, indicating excellent reusability . Li and coworkers addressed the issue of rapid disintegration of cellulose by preparing aerogels by crosslinking polyethyleneimine (PEI) groups to nanocellulose which can not only improve the wet strength, but also recover the original shape of aerogel (≈1.9 s) as shown in Figure .…”

Section: Removal Of Heavy Metal Ionsmentioning

confidence: 99%

Bio‐Based Nanofibers Involved in Wastewater Treatment

Gandavadi

Sundarrajan

Ramakrishna

2019

Macro Materials & Eng

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Studies involving bio‐based nanofibers are well utilized in the field of energy, catalysis, electronics, and environmental science. In this review, the importance of utilizing bio‐based materials for the development and optimization of multiplexed nanofibers and the modifications adopted to overcome the drawbacks of conventional electro‐spinning to facilitate better production rates, enhanced adsorption, and its potential in removing heavy metal ions, dyes, and other contaminants polluting the environment are highlighted. This work provides the readers the ability to understand the complexity in fabrication of bio‐based nanofibers focusing primarily on chitosan, cellulose, and protein‐based nanofibers and their mechanism toward quenching/degradation of water contaminants. In addition, it also provides the advantages of using bio‐based materials over synthetic materials for the development of nanofibers.

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Electrospun AOPAN/RC blend nanofiber membrane for efficient removal of heavy metal ions from water

Cited by 145 publications

References 34 publications

High and fast adsorption of Cd(II) and Pb(II) ions from aqueous solutions by a waste biomass based hydrogel

High and fast adsorption of Cd(II) and Pb(II) ions from aqueous solutions by a waste biomass based hydrogel

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Bio‐Based Nanofibers Involved in Wastewater Treatment

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