Synthesis of a novel polysuccinimide based resin for the ultrahigh removal of anionic azo dyes from aqueous solution

Mansha, Muhammad; Waheed, Abdul; Ahmad, Tauqir; Kazi, Izzat Wajih

doi:10.1016/j.envres.2020.109337

Cited by 57 publications

(17 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the intensity of these peaks also varied more or less. These changes confirmed the chemical and hydrogen bond interreaction between Fe 3 O 4 @ SA-Fe polymer gel beads and dye molecules [63], and Fe 3 O 4 particles in Fe 3 O 4 @SA-Fe polymer also participated in the interaction with dye anions.…”

Section: Discussion On Adsorption Mechanismsupporting

confidence: 62%

“…This confirmed that the room temperature would be the most favorable for the ultra-efficient removal of CR and DR 23 dyes and also very convenient for the actual operation of dye wastewater treatment. Compared with the reported literature values of maximum adsorption capacity (q max ) of CR and DR 23 onto other different types of adsorbents [29,[47][48][49][50][51][52][53][54][55][56][57][58][59][60][61] in Table 4, the magnetic polymer Fe 3 O 4 @SA-Fe revealed a greater advantage because it has greater adsorption capacities for two dyes, and could quickly recover from the aqueous phase after adsorption and did not produce secondary pollution. Hence, polymer Fe 3 O 4 @SA-Fe gel beads may be considered a promising green adsorbent for super-efficient removal of direct dyes.…”

Section: Adsorption Isothermsmentioning

confidence: 87%

See 1 more Smart Citation

Preparation of Novel Magnetic Sodium Alginate-Ferric(III) Gel Beads and Their Super-Efficient Removal of Direct Dyes from Water

2020

J Polym Environ

View full text Add to dashboard Cite

Novel magnetic sodium alginate-based biopolymer Fe 3 O 4 @SA-Fe was successfully prepared by the cross-linking reaction of sodium alginate (SA) and Fe(III) ions and adding magnetic ferric oxide (Fe 3 O 4 ), and characterized by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), UV-visible diffuse reflectance spectroscopy (UV-Vis DRS), Fourier Transform-Infrared (FTIR), X-ray Photoelectron Spectroscopy (XPS) and Vibrating Sample Magnetometer (VSM), respectively. The effects of preparation and adsorption conditions on the adsorbent were investigated by adsorbing Congo red (CR) and Direct red 23 (DR 23) dyes. The results showed that the synthesized Fe 3 O 4 @SA-Fe polymer gel beads exhibited super-high adsorption property and good stability when the mass concentrations of SA, Fe(III) ions and Fe 3 O 4 are 16, 12.5 and 7 g/L at room temperature respectively. The adsorption rates of two dyes by Fe 3 O 4 @SA-Fe were very fast at 298 K, and the time required to reach the equilibrium was very short, which was 30 min for CR and 60 min for DR 23. Moreover, the dye removal efficiencies were over 99.4% and 95.2% in a wide pH range of 2.0 ~ 9.0 for CR and 2.0 ~ 10.0 for DR 23, respectively. The adsorption process could be accurately described by the pseudo-second-order rate model, which were mostly controlled by intra-particle diffusion. The fitting results of isothermic data by Langmuir, Freundlich and Dubinin-Radushkevich (D-R) models revealed that the equilibrium data completely obeyed the Langmuir model and the obtained maximum adsorption capacities of CR and DR 23 were 3333 and 1429 mg/g at 298 K, respectively. FTIR, UV-Vis and XPS analysis indicated that the electrostatic adsorption, hydrogen bonding and ligand exchange promoted the interaction between dye molecules and Fe 3 O 4 @SA-Fe. A green magnetic biosorbent Fe 3 O 4 @SA-Fe gel beads with simple preparation method and high-cost performance can be used for super-efficient purification of high-concentration dye effluent and quickly separated from the aqueous phase and recovered, which would have a good application prospect.

show abstract

Section: Discussion On Adsorption Mechanismsupporting

confidence: 62%

Section: Adsorption Isothermsmentioning

confidence: 87%

Preparation of Novel Magnetic Sodium Alginate-Ferric(III) Gel Beads and Their Super-Efficient Removal of Direct Dyes from Water

2020

J Polym Environ

View full text Add to dashboard Cite

show abstract

“…Adsorbent resins have been widely used to remove in dyes chemicals (such as benzene and naphthalene), pharmaceutical intermediates, and other organic compounds from wastewater [ 11 ]. Although existing adsorption resins can efficiently remove micromolecules and low water-soluble organic matter from wastewater, they are not effective for the adsorption of large molecules or organic matter with complex molecular structures.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pore Size Distribution and Amination on Adsorption Capacities of Polymeric Adsorbents

et al. 2021

View full text Add to dashboard Cite

Polymeric adsorbents with different properties were synthesized via suspension polymerization. Equilibrium and kinetics experiments were then performed to verify the adsorption capacities of the resins for molecules of various sizes. The adsorption of small molecules reached equilibrium more quickly than the adsorption of large molecules. Furthermore, the resins with small pores are easy to lower their adsorption capacities for large molecules because of the pore blockage effect. After amination, the specific surface areas of the resins decreased. The average pore diameter decreased when the resin was modified with either primary or tertiary amines, but the pore diameter increased when the resin was modified with secondary amines. The phenol adsorption capacities of the amine-modified resins were reduced because of the decreased specific area. The amine-modified resins could more efficiently adsorb reactive brilliant blue 4 owing to the presence of polar functional groups.

show abstract

“…The mixture was placed in an incubator with a shaking speed of 150 rpm at 15, 25, 35, and 45 °C for 24 h. After filtration, using the procedure described in 3.4.1, the concentration of MB remaining in the solution was measured by UV-Vis. To better understand the effect of the adsorption temperature on the adsorption process, the thermodynamic parameters were determined using the Van't Hoff equation [56].…”

Section: The Effect Of Adsorption Temperature and Adsorption Thermodynamicsmentioning

confidence: 99%

Silk Sericin Enrichment through Electrodeposition and Carbonous Materials for the Removal of Methylene Blue from Aqueous Solution

Zhang

Chen

et al. 2022

IJMS

View full text Add to dashboard Cite

The recycling and reuse of biomass waste for the preparation of carbon-based adsorbents is a sustainable development strategy that has a positive environmental impact. It is well known that a large amount of silk sericin (SS) is dissolved in the wastewater from the silk industry. Utilizing the SS instead of discharging it into the environment without further treatment would reduce environmental and ecological problems. However, effective enrichment of the SS from the aqueous solution is a challenge. Here, with the help of carboxymethyl chitosan (CMCS), which can form a gel structure under low voltage, an SS/CMCS hydrogel with SS as the major component was prepared via electrodeposition at a 3 V direct-current (DC) voltage for five minutes. Following a carbonization process, an SS-based adsorbent with good performance for the removal of methylene blue (MB) from an aqueous solution was prepared. Our results reveal that the SS/CMCS hydrogel maintains a porous architecture before and after carbonization. Such structure provides abundant adsorption sites facilitating the adsorption of MB molecules, with a maximum adsorptive capacity of 231.79 mg/g. In addition, it suggests that the adsorption is an exothermic process, has a good fit with the Langmuir model, and follows the intra-particle diffusion model. The presented work provides an economical and feasible path for the treatment of wastewater from dyeing and printing.

show abstract

Synthesis of a novel polysuccinimide based resin for the ultrahigh removal of anionic azo dyes from aqueous solution

Cited by 57 publications

References 38 publications

Preparation of Novel Magnetic Sodium Alginate-Ferric(III) Gel Beads and Their Super-Efficient Removal of Direct Dyes from Water

Preparation of Novel Magnetic Sodium Alginate-Ferric(III) Gel Beads and Their Super-Efficient Removal of Direct Dyes from Water

Effect of Pore Size Distribution and Amination on Adsorption Capacities of Polymeric Adsorbents

Silk Sericin Enrichment through Electrodeposition and Carbonous Materials for the Removal of Methylene Blue from Aqueous Solution

Contact Info

Product

Resources

About