Heavy metal ion removal from aqueous solutions by functionalized polyacrylonitrile

Kiani, Gholamreza; Sheikhloie, Hossein; Arsalani, Nasser

doi:10.1016/j.desal.2010.11.012

Cited by 91 publications

(52 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Poly(AN-co-AA) with high amine capacity is expected to have better efficiency in adsorption applications [3]. Figure 3 shows that the AO modified poly(AN-co-AA) 93:7 has the highest amine capacity (17 mmol·g respectively.…”

Section: Amine Capacitymentioning

confidence: 99%

“…For instance, poly(AN-co-AA) has a better affinity for water due to the existence of -COOH pendant groups contributed by acrylic acid constituent along the polymer chains. In contrast, PAN was known as a hydrophobic polymer due the nitrile-nitrile dipolar interactions along PAN chains [1,3]. Hence, it is expected that the AO modified poly(AN-co-AA) 93:7 has high potential to make efficient adsorptions in aqueous solution and waste water.…”

Section: +mentioning

confidence: 99%

“…The solution was back titrated with 0.1 M HCl until the end point of phenolphthalein. The volume of HCl used was recorded [3]. The amine capacity was calculated by using Equation (1).…”

Section: Amine Capacitymentioning

confidence: 99%

See 2 more Smart Citations

Improved Method for Preparation of Amidoxime Modified Poly(acrylonitrile-co-acrylic acid): Characterizations and Adsorption Case Study

et al. 2015

View full text Add to dashboard Cite

Redox polymerization of poly(acrylonitrile-co-acrylic acid) (poly(AN-co-AA)) is performed at 40 °C under N2 gas by varying the ratio of acrylonitrile (AN) and acrylic acid (AA) in the feed. The yield production of poly(acrylonitrile) (PAN) is 73% and poly(AN-co-AA) with a feed ratio of 93:7 is the highest yield (72%). The PAN and poly(AN-co-AA) are further chemically modify with hydroxylamine hydrochloride. The FTIR spectroscopy is used to confirm the copolymerization of poly(AN-co-AA) and chemical modification of poly(AN-co-AA). Elemental microanalysis shows that the overall trend percentage of carbon, hydrogen, and nitrogen for all feed ratios are slightly decreasing as the feed ratio of AA is increasing except for poly(AN-co-AA) 93:7. The SEM images shows that spherical diameter of poly(AN-co-AA) is smaller compared to the PAN and amidoxime (AO) OPEN ACCESSPolymers 2015, 7 1206 modified poly(AN-co-AA). The TGA (thermogravimetric analysis) analysis reveals that the poly(AN-co-AA) degrades at lower temperatures compared to the PAN but higher than AO modified poly(AN-co-AA). The case study adsorption test showed that the AO modified poly(AN-co-AA) 93:7 had the highest percentage removal of Cd 2+ and Pb 2+.

show abstract

Section: Amine Capacitymentioning

confidence: 99%

Section: +mentioning

confidence: 99%

See 1 more Smart Citation

Improved Method for Preparation of Amidoxime Modified Poly(acrylonitrile-co-acrylic acid): Characterizations and Adsorption Case Study

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Amine-containing resins based on PAN were synthesised through chemical modifications of PAN with diethylene triamine (DETA) by Kiani et al [55]. The modified PAN resins (PAN-DETA50 and PAN-DETA150) were used as adsorbent for the removal of Hg(II), Fe(III), Pb(II), Ag(I) and Zn(II) from aqueous solution.…”

Section: Polyacrylonitrile (Pan)mentioning

confidence: 99%

The Use of Acrylic-Based Polymers in Environmental Remediation Studies

Yayayürük¹

2017

Acrylic Polymers in Healthcare

View full text Add to dashboard Cite

Heavy metals are not biodegradable and tend to accumulate in living organisms. Many heavy metal ions are known to be toxic or carcinogenic. Thus, removal of these toxic heavy metals from water is of crucial importance to protect the human population and the environment. In recent years, polymeric adsorbents have received considerable interest for heavy metal removal mainly due to important technological and scientific developments such as easy synthesis at controlled dimensions with variable functional groups, perfect mechanical rigidity, tunable surface chemistry, large surface area, pore size distribution, high uptake values and feasible regeneration under mild conditions. This chapter has attempted to present to the readers the widespread investigations of acrylic-based polymeric adsorbents so that the reader can get an idea about the various types and forms of polymeric materials used for the removal of heavy metals from water.

show abstract

“…The continual development of technologies enabling the production of synthetic systems, including recycling of waste materials, with specific porous structure parameters (synthetic adsorbents) is also very important (Saleh et al , 2014. Synthetic adsorbents have particular physicochemical properties that are produced in the course of their synthesis (Kiani et al 2011;Lakshmi et al 2009;Zhang et al 2010 production and type of compound used as an adsorbent affect the efficiency of removal of, for instance, organic or inorganic impurities from aqueous systems (Bamgbose et al 2010;Govindarajan et al 2011;Ozdemir et al 2004;Rangel-Mendez and Streat 2002;Srinivasa et al 2010). The properties of adsorbents can be modified in various ways, including the creation of novel composite materials.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive study of Cd(II) ions removal utilizing high-surface-area binary Mg–Si hybrid oxide adsorbent

Ciesielczyk

Bartczak

Jesionowski

2015

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Presented work concerns the application of synthetic oxide adsorbent in the removal of cadmium ions from its model, water solutions. In this study, a novel magnesium-silicon (Mg-Si) binary oxide adsorbent was prepared by a modified co-precipitation method, utilizing sodium silicate and magnesium sulphate solutions as precursors of silica and magnesium oxide, respectively. The material was thoroughly characterized in order to evaluate chemical composition (AAS, EDS and gravimetric method), crystalline structure (XRD), morphology (SEM), particle size distribution (DLS), characteristic functional groups (FTIR) and porous structure parameters (BET and BJH models). It was proved that the adsorbent is amorphous, with a micrometric-sized, irregular-shaped particles and relatively large surface area of 540 m 2 /g. Batch adsorption experiments were conducted to investigate the adsorption of Cd(II) ions on the prepared adsorbent, including evaluation of adsorption kinetics, the intraparticle diffusion model, the effect of pH, contact time, mass of the adsorbent, temperature and the effect of competitive Cl -and NO 3 -anions. During the study, it was confirmed that the adsorption of Cd(II) ions reached equilibrium within 30 min, which was found to fit well with a pseudo-secondorder kinetic model type 1 (r 2 = 0.998-0.999). The Mg-Si adsorbent exhibited high adsorption capacity for Cd(II) ions at pH above 7, and the maximum quantity of cadmium(II) ions adsorbed in optimal time was achieved for the highest metal ion concentrations: 18.22 (Cl -) and 15.46(NO 3 -) mg/g. The competitive anions present in the model cadmium salt solutions hindered adsorption in the sequence Cl-.

show abstract

Heavy metal ion removal from aqueous solutions by functionalized polyacrylonitrile

Cited by 91 publications

References 13 publications

Improved Method for Preparation of Amidoxime Modified Poly(acrylonitrile-co-acrylic acid): Characterizations and Adsorption Case Study

Improved Method for Preparation of Amidoxime Modified Poly(acrylonitrile-co-acrylic acid): Characterizations and Adsorption Case Study

The Use of Acrylic-Based Polymers in Environmental Remediation Studies

A comprehensive study of Cd(II) ions removal utilizing high-surface-area binary Mg–Si hybrid oxide adsorbent

Contact Info

Product

Resources

About