Investigation of boron nitride/silver/graphene oxide nanocomposite on separation and antibacterial improvement of polyethersulfone membranes in wastewater treatment

Vatanpour, Vahid; Keskin, Başak; Mehrabani, Seyed Ali Naziri; Karimi, Hamid Reza; Arabi, Negar; Behroozi, Amir Hossein; Shokrollahi-far, Ali; Gül, Bahar Yavuztürk; Koyuncu, İsmail

doi:10.1016/j.jece.2021.107035

Cited by 57 publications

(27 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PVC 17%, a thicker membrane, having a lower porosity and permeability coefficient. These findings were consistent with other studies, which found that as fluxes reduced, permeability rates declined with increasing polymer content 42,43 …”

Section: Resultssupporting

confidence: 93%

Preparation and characterization of polyvinyl chloride membranes and their fouling behavior in water purification

Eryıldız

Keskin

Paşaoğlu

et al. 2022

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

In the present study, polyvinyl chloride (PVC) membranes were used to improve water purification and fouling performance. Porous PVC flat sheet membranes were produced using the phase inversion method. The polymer concentration in casting solution varied from 11 to 17 wt%. Water contact angles, pore size, overall porosity and scanning electron microscopy were used for membrane characterization. The foulants such as bovine serum albumin (BSA) and humic acid (HA) were used to test the membranes' separation performance and fouling resistance. Contact angle increased from 79.6 ± 2.2° to 81.9 ± 1.0° as the polymer concentration increased, while overall porosity decreased from 72.0% to 61.9%. Results showed that BSA and HA permeate flux had similar trend by adding PVC. It was observed that BSA rejection enhanced from 54.8% to 80.7% while HA rejection increased from 76.3% to 88.3% with increasing PVC content. Permeate flux decreased by increase of PVC content due to reduction of porosity and pore size. Besides, the flux recovery ratio, reversible and irreversible fouling studies showed that better fouling observed with increasing of PVC content. The findings of this work show that PVC may be used to improve the separation and antifouling properties for water purification.

show abstract

Section: Resultssupporting

confidence: 93%

Preparation and characterization of polyvinyl chloride membranes and their fouling behavior in water purification

Eryıldız

Keskin

Paşaoğlu

et al. 2022

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…Furthermore, Figure 21 i presents XRD spectra of (A) the GO-Ag nanohybrid and (B) FBN-GO-Ag samples and the XRD pattern of GO (inset), confirming the surface functionalization of composites and anchoring of Ag and BN particle on GO surface. Figure 21 k shows the FTIR profile confirming the existence of oxygen heteroatoms on the surface of ternary composites, which are also confirmed by EDX analysis in Figure 21 h. Furthermore, Figure 21 j presents the antifouling performance of the membrane, which displays enhanced flux recovery and better anti-fouling properties when compared with the bare membrane, and finally, Figure 21 l shows that the resistance factor in altered membranes is lower, even though their flux recovery rate is much higher [ 192 ].…”

Section: Applications Of Graphenementioning

confidence: 53%

“…Decreases in the reversible fouling and fouling rates of 27.2% and 22.2%, respectively, were observed after the addition of 0.5 wt% BN-GO-Ag to the membrane in reversible fouling resistance and the total fouling rate of the synthesized membrane, respectively. Additionally, the PES membrane with 1 wt% BN-GO-Ag nanocomposites exhibited 77.7% and 88.9% rejection of reactive red 120 and reactive black 5, respectively, which can be credited to the increase in surface negativity of the membrane due to the addition of GO [ 192 ]. Figure 21 signifies the physical/chemical properties and membrane performance of ternary composites.…”

Section: Applications Of Graphenementioning

confidence: 99%

See 1 more Smart Citation

Graphene Synthesis Techniques and Environmental Applications

Abbas

Shinde²,

Abdelkareem³

et al. 2022

Materials

View full text Add to dashboard Cite

Graphene is fundamentally a two-dimensional material with extraordinary optical, thermal, mechanical, and electrical characteristics. It has a versatile surface chemistry and large surface area. It is a carbon nanomaterial, which comprises sp2 hybridized carbon atoms placed in a hexagonal lattice with one-atom thickness, giving it a two-dimensional structure. A large number of synthesis techniques including epitaxial growth, liquid phase exfoliation, electrochemical exfoliation, mechanical exfoliation, and chemical vapor deposition are used for the synthesis of graphene. Graphene prepared using different techniques can have a number of benefits and deficiencies depending on its application. This study provides a summary of graphene preparation techniques and critically assesses the use of graphene, its derivates, and composites in environmental applications. These applications include the use of graphene as membrane material for the detoxication and purification of water, active material for gas sensing, heavy metal ions detection, and CO2 conversion. Furthermore, a trend analysis of both synthesis techniques and environmental applications of graphene has been performed by extracting and analyzing Scopus data from the past ten years. Finally, conclusions and outlook are provided to address the residual challenges related to the synthesis of the material and its use for environmental applications.

show abstract

“…The FTIR spectra of inulin (1) www.nature.com/scientificreports/ and Fe 3 O 4 @inulin nanocomposite illustrate several similar adsorption bands: broad adsorption bands at 3428 and 1531 cm −1 are attributed to the bending and stretching vibration of the OH bond, respectively 30 , which is abundant in the inulin backbone. The adsorption band at about 3095 cm −1 is associated with the stretching vibration of the CH bond 31 . The peak at 1101 cm −1 is related to the asymmetric stretching vibration of the COC bond, and an absorption band at 1052 cm −1 is attributed to the stretching vibration of the CO bond 32 .…”

Section: Resultsmentioning

confidence: 99%

Magnetized inulin by Fe3O4 as a bio-nano adsorbent for treating water contaminated with methyl orange and crystal violet dyes

Valizadeh

Bateni

Sojoodi

et al. 2022

Sci Rep

Self Cite

View full text Add to dashboard Cite

Current work focuses on fabricating a new bio-nano adsorbent of Fe3O4@inulin nanocomposite via an in-situ co-precipitation procedure to adsorb methyl orange (MO) and crystal violet (CV) dyes from aqueous solutions. Different physical characterization analyses verified the successful fabrication of the magnetic nanocomposite. The adsorbent performance in dye removal was evaluated by varying initial dye concentration, adsorbent dosage, pH and temperature in 5110 mg/L, 0.10.8 g/L, 111 and 283–338 K, respectively. Due to the pH of zero point of charge and intrinsic properties of dyes, the optimum pHs were 5 and 7 for MO and CV adsorption, respectively. The correlation of coefficient (R2) and reduced chi-squared value were the criteria in order to select the best isotherm and kinetics models. The Langmuir model illustrated a better fit for the adsorption data for both dyes, demonstrating the maximum adsorption capacity of 276.26 and 223.57 mg/g at 338 K for MO and CV, respectively. As well, the pseudo-second-order model showed a better fitness for kinetics data compared to the pseudo-first-order and Elovich models. The thermodynamic parameters exhibited that the dye adsorption process is endothermic and spontaneous, which supported the enhanced adsorption rate by increasing temperature. Moreover, the nanocomposite presented outstanding capacity and stability after 6 successive cycles by retaining more than 87% of its initial dye removal efficiency. Overall, the magnetized inulin with Fe3O4 could be a competent adsorbent for eliminating anionic and cationic dyes from water.

show abstract

Investigation of boron nitride/silver/graphene oxide nanocomposite on separation and antibacterial improvement of polyethersulfone membranes in wastewater treatment

Cited by 57 publications

References 63 publications

Preparation and characterization of polyvinyl chloride membranes and their fouling behavior in water purification

Preparation and characterization of polyvinyl chloride membranes and their fouling behavior in water purification

Graphene Synthesis Techniques and Environmental Applications

Magnetized inulin by Fe3O4 as a bio-nano adsorbent for treating water contaminated with methyl orange and crystal violet dyes

Contact Info

Product

Resources

About