Sorption potential of microplastics for azo- and phthalocyanine printing dyes

Tubić, Aleksandra; Vujić, Maja; Gvoić, Vesna; Agbaba, Jasmina; Vasiljević, Sanja; Cvetićanin, L.; Vukelić, Đorđe; Prica, Miljana

doi:10.1016/j.dyepig.2022.110884

Cited by 16 publications

(2 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, other types of interactions are responsible for the adsorption of CPs on MPs at pH 4 and pH 7, such as π-π interactions, hydrogen bonding, halogen bonding and van der Waals interactions. It is possible that the higher adsorption affinity at pH 7 in comparison with pH 4 occurred due to competition between H + ions and the free electron pairs of phenol functional groups in the molecules of the selected CPs [67].…”

Section: Possible Adsorption Mechanism Between the Cps And Mpsmentioning

confidence: 99%

Sorption Behavior of Organic Pollutants on Biodegradable and Nondegradable Microplastics: pH Effects

Vujić,

Vasiljević,

Nikić

et al. 2023

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Microplastics (MPs), chlorinated phenols (CPs), polycyclic aromatic hydrocarbons (PAHs) and halogenated benzenes (HBs) are pollutants that are widely present in freshwater systems. As alternatives to conventional plastics, bioplastics are receiving a lot of attention, but there are limited data on their impact on pollutant behavior. This work therefore investigated the impact of pH on the sorption of CPs, PAHs and HBs, as some of the toxic and highly persistent pollutants, on seven different plastics using kinetic and isotherm studies. The pH of the water matrix impacted the adsorption behavior of CPs on all selected MPs, with the highest degree of adsorption occurring at pH 7 for the majority of the selected CPs. The highest adsorption affinity of CPs on the MPs, at pH 7, was obtained for 4-chlorophenol and 2,4-dichlorophenol on powdered polyethylene standard (qt = 221 μg/g), while the lowest was obtained for the adsorption of pentachlorophenol on polyethylene terephthalate (qt = 25 μg/g). On the other hand, the pH value of the water matrix did not affect the adsorption of halogenated benzenes and PAHs on MPs. The pseudo-second-order rate model fit the adsorption kinetics data of all experiments. The results obtained for the adsorption of CPs on MPs indicated a lower sorption affinity of CPs with MPs at pH 4 and pH 10 compared to pH 7. The Langmuir isotherm, at pH 7, implied that 4-chlorophenol’s adsorption affinity was not significantly influenced by the type of MPs. On the other hand, at pH 7, the adsorption of 2,4-dichlorophenol, 2,4,6-trichlorophenol and pentachlorophenol varied greatly, with powdered MP types showing the highest affinity for CP adsorption. Furthermore, the obtained adsorption isotherm results imply that electrostatic attraction, hydrogen bonds, π-π interactions and van der Waals interactions, are an integral part of adsorption mechanisms of the CPs on the MPs.

show abstract

Section: Possible Adsorption Mechanism Between the Cps And Mpsmentioning

confidence: 99%

Sorption Behavior of Organic Pollutants on Biodegradable and Nondegradable Microplastics: pH Effects

Vujić,

Vasiljević,

Nikić

et al. 2023

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…In fact, much of the synthetic dye does not stick, is lost in wastewater associated with manufacturing, and is usually discarded without treatment [1,2]. Organic dyes are one of the leading factors of pollutants in the water, which is generated by the wastewater discharges of several manufacturing sectors including textiles, plastics, dyeing, photography, printing, and tanning [3]. Congo red is a principal family of synthetic colorants azo dyes are commonly employed in textile production owing to their characteristics, which include a wide range of hues, resistance to decolorization, and low energy requirements [4].…”

Section: Introductionmentioning

confidence: 99%

Congo red pigment weeding out from water media via RuO2@ZnO nanostructure

Idriss,

Alakhras,

Modwi

2023

JOBM

View full text Add to dashboard Cite

In this report, RuO2@ZnO nanostructure was synthesized, characterized, and employed for Congo Red (CR) dye removal from the aquatic phase. The influence of sorption factors contact time, pH, and concentration, was examined. The results indicates the formation of RuO2@ZnO nanostructure with surface area of 21 m2 g-1 and pore size of 23.5 nm. . The highest amount of Congo red adsorbed by RuO2@ZnO nanostructure was 102.42 mg/g. Excellent obedience was found between the equilibrium data and the Langmuir model (R2 > 0.9338), whereas the adsorption kinetics was consistent with the pseudo-second-order equation (R2 > 0.9999).

show abstract

Plasma Functionalization for Enhanced Natural Dye Affinity on Bioplastics: A Novel Approach

Syibyan,

Siswanta,

Pidhatika

et al. 2024

Plasma Processes & Polymers

View full text Add to dashboard Cite

Bioplastics offer biodegradability and reduced environmental impact but often use nondegradable synthetic dyes. This study introduces a novel application of glow discharge plasma (GDP) technology to modify cassava starch‐based bioplastic sheets, specifically optimizing conditions to enhance their hydrophilicity and adhesion for natural dyes. This research systematically tailors plasma treatment parameters to maximize the interaction between bioplastics and eco‐friendly natural dyes. Optimal conditions, identified as 30 W for 3 min using oxygen, air, and nitrogen plasma treatments, demonstrate significant advancement in sustainable material development. Analyses (ATR‐FTIR, EDX, XPS) showed increased concentration of polar functional groups and oxygen content, with FE‐SEM and water contact angle measurements revealing improved surface roughness and wettability, respectively. Oxygen plasma treatment yielded the highest hydrophilicity and crystallinity of the polymer. Tensile tests indicated increased strength and decreased elongation. UV‐Vis spectroscopy confirmed enhanced dye retention and reduced leaching. This study demonstrates GDP's potential to incorporate eco‐friendly natural dyes into bioplastics, thereby contributing to the development of more sustainable materials.

show abstract

Sorption potential of microplastics for azo- and phthalocyanine printing dyes

Cited by 16 publications

References 68 publications

Sorption Behavior of Organic Pollutants on Biodegradable and Nondegradable Microplastics: pH Effects

Sorption Behavior of Organic Pollutants on Biodegradable and Nondegradable Microplastics: pH Effects

Congo red pigment weeding out from water media via RuO2@ZnO nanostructure

Plasma Functionalization for Enhanced Natural Dye Affinity on Bioplastics: A Novel Approach

Contact Info

Product

Resources

About