Functionalization of membrane surface by layer-by-layer self-assembly method for dyes removal

Januário, Eduarda Freitas Diogo; Beluci, Natália de Camargo Lima; Vidovix, Taynara Basso; Vieira, Angélica Marquetotti Salcedo; Bergamasco, Rosângela; Vieira, Angélica Marquetotti Salcedo

doi:10.1016/j.psep.2019.11.030

Cited by 56 publications

(15 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…63 Consequently, at pH < 7.4, it is predominantly in its protonated form and at pH > 7.4 it is in its deprotonated form. This indicates that in the evaluated pH range (3)(4)(5)(6)(7)(8)(9)(10)(11), electrostatic attraction can occur between the dye and CuO_NP. However, as there were no major changes in adsorptive capacity across this pH range, this mechanism may not be the main one governing the process.…”

Section: Cuo_np Characterizationmentioning

confidence: 89%

Efficient performance of copper oxide nanoparticles synthesized with pomegranate leaf extract for neutral red dye adsorption

Vidovix

Januário

Araújo

et al. 2022

Env Prog and Sustain Energy

Self Cite

View full text Add to dashboard Cite

The adsorption of dyes in water and wastewater using metallic nanoparticles stands out due to its high removal capacity and low environmental impact. The present study proposed the use of copper oxide nanoparticles (CuO_NP), synthesized with pomegranate leaves extract (Punica granatum) to remove the neutral red (NR) dye from the aqueous medium. The characterization confirmed the efficiency of the redox process and the formation of nanoparticles. The adsorption results were promising, wherein the maximum adsorption capacity was 283 mg/g (298 K), with 0.4 g/L of adsorbent concentration, equilibrium time at 120 min, and removal rate of 96%. The pseudo-second-order and Langmuir models had a better fit concerning the kinetic and isothermal data, respectively. Thermodynamic parameters revealed an exothermic, spontaneous, and reversible process. The mechanisms that described the adsorptive process were hydrogen bonds, π-interactions, and electrostatic attraction. CuO_NP showed good regeneration performance up to four reuse cycles (98-52 mg/g). In addition, not pronounced changes were verified in its adsorption capacity with dissociated ions (90-102 mg/g, in relation to the adsorption with no salts 104 mg/g). This secures the material versatility and cost-effectiveness, justifying its high potential for industrial application to remove NR from water and wastewater.

show abstract

Section: Cuo_np Characterizationmentioning

confidence: 89%

Efficient performance of copper oxide nanoparticles synthesized with pomegranate leaf extract for neutral red dye adsorption

Vidovix

Januário

Araújo

et al. 2022

Env Prog and Sustain Energy

Self Cite

View full text Add to dashboard Cite

show abstract

“…The peer review history for this article is available at https://publons.com/publon/10.1002/cjce.24278. Diogo Janu ario et al [35] Bordeaux red 93.35…”

Section: Peer Reviewmentioning

confidence: 99%

Layer‐by‐layer self‐assembly of polyethersulphone microfiltration membranes for dye removal and flux recovery improvement

2021

Self Cite

View full text Add to dashboard Cite

Commercial polyethersulphone (PES) microfiltration (MF) membranes were modified with sulphuric acid, chitosan (CHS), and graphene oxide (GO) by the layer-by-layer self-assembly method via electrostatic interaction using a pressurized filtration system. The sulphonation of the PES MF membranes was achieved through the filtration of a 10 wt.% sulphuric acid solution. The negatively charged surface of the PES MF membrane allowed the interaction between amino groups present in CHS, and finally, the membrane substrate received a negatively charged layer through the filtration of a GO solution.Characterization analysis such as contact angle, scanning electron microscopy (SEM), and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) proved that the membranes were successfully modified. The effect of CHS and GO masses were analyzed, the membrane that showed the best performance was MF CHS 1 GO 0.5 with a rejection of 100% of the Reactive Black 5 (RB5) dye, hydraulic permeability of 10.18 L/m 2 Á h Á bar, and flux recovery ratio of 71.21%. Also, this membrane was able to be reused in three cycles, maintaining a rejection of RB5 higher than 85% during the last cycle.

show abstract

“…These several studies showed that membranes functionalized with graphene have easy permeate flow recovery after cleaning, chemical and physical stability of the nanomaterials added, and performance improvement concerning the permeate flow and solute rejection. Besides, due to lightness, flexibility, high conductivity, and resistance, the functionalization with graphene gives the membrane desirable characteristics that are closer to the concepts of sustainability [52,98,154].…”

Section: Figure 3 Functionalization Techniques For Porous Polymeric M...mentioning

confidence: 99%

Sustainable Membranes and its Applications

Oliveira

2022

Advanced Functional Membranes

View full text Add to dashboard Cite

The utilization of sustainable and high-performance technologies is a growing tendency in industrial processes. The membrane separation process is a clean technology alternative that can be used to separate, concentrate, and/or purify substances. But there is still a great interest in turning this process increasingly sustainable by the structural modification of the membranes using biopolymers and green solvents, and the functionalization with organic and inorganic materials, also improving their performance and anti-fouling characteristics. Thus, this review chapter brings the main concepts about membranes and their main structural modifications to obtain a process that meets the concepts involved in Green Technology.

show abstract

Functionalization of membrane surface by layer-by-layer self-assembly method for dyes removal

Cited by 56 publications

References 59 publications

Efficient performance of copper oxide nanoparticles synthesized with pomegranate leaf extract for neutral red dye adsorption

Efficient performance of copper oxide nanoparticles synthesized with pomegranate leaf extract for neutral red dye adsorption

Layer‐by‐layer self‐assembly of polyethersulphone microfiltration membranes for dye removal and flux recovery improvement

Sustainable Membranes and its Applications

Contact Info

Product

Resources

About