Mechanisms of Adsorption of Heavy Metal Cations from Waters by an Amino Bio-Based Resin Derived from Rosin

Huang, Wan-Ting; Diao, Kai-Sheng; Tan, Xuecai; Lei, Fuhou; Jiang, Jianxin; Goodman, B. A.; Ma, Ya-Hong

doi:10.3390/polym11060969

Cited by 18 publications

(13 citation statements)

References 28 publications

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“…In addition, gum rosin exhibits thermoplastic behaviour [27]. This material is fragile and rigid due to its polycyclic structure [28]. Additionally, gum rosin and its derivatives present antimicrobial activity [22], biodegradability, and biocompatibility [29,30].…”

Section: Introductionmentioning

confidence: 99%

New Materials for 3D-Printing Based on Polycaprolactone with Gum Rosin and Beeswax as Additives

et al. 2020

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In this work, different materials for three-dimensional (3D)-printing were studied, which based on polycaprolactone with two natural additives, gum rosin, and beeswax. During the 3D-printing process, the bed and extrusion temperatures of each formulation were established. After, the obtained materials were characterized by mechanical, thermal, and structural properties. The results showed that the formulation with containing polycaprolactone with a mixture of gum rosin and beeswax as additive behaved better during the 3D-printing process. Moreover, the miscibility and compatibility between the additives and the matrix were concluded through the thermal assessment. The mechanical characterization established that the addition of the mixture of gum rosin and beeswax provides greater tensile strength than those additives separately, facilitating 3D-printing. In contrast, the addition of beeswax increased the ductility of the material, which makes the 3D-printing processing difficult. Despite the fact that both natural additives had a plasticizing effect, the formulations containing gum rosin showed greater elongation at break. Finally, Fourier-Transform Infrared Spectroscopy assessment deduced that polycaprolactone interacts with the functional groups of the additives.

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Section: Introductionmentioning

confidence: 99%

New Materials for 3D-Printing Based on Polycaprolactone with Gum Rosin and Beeswax as Additives

et al. 2020

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“…For instance, pentaerythritol alcohol is used to stabilize gum rosin to increase its thermal resistance [30,35]. Gum rosin and its derivatives are fragile and rigid due to their hydrogenated phenanthrene ring structure [36,37]. Therefore, they have been used as environmental friendly additives in both thermoplastics and thermosets [30,[38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Improvement of PBAT Processability and Mechanical Performance by Blending with Pine Resin Derivatives for Injection Moulding Rigid Packaging with Enhanced Hydrophobicity

et al. 2020

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Polybutylene adipate-co-terephthalate (PBAT) is a biodegradable polymer with good features for packaging applications. However, the mechanical performance and high prices of PBAT limit its current usage at the commercial level. To improve the properties and reduce the cost of PBAT, pine resin derivatives, gum rosin (GR) and pentaerythritol ester of GR (UT), were proposed as sustainable additives. For this purpose, PBAT was blended with 5, 10, and 15 wt.% of additives by melt-extrusion followed by injection moulding. The overall performance of the formulations was assessed by tensile test, microstructural, thermal, and dynamic mechanical thermal analysis. The results showed that although good miscibility of both resins with PBAT matrix was achieved, GR in 10 wt.% showed better interfacial adhesion with the PBAT matrix than UT. The thermal characterization suggested that GR and UT reduce PBAT melting enthalpy and enhance its thermal stability, improving PBAT processability. A 10 wt.% of GR significantly increased the tensile properties of PBAT, while a 15 wt.% of UT maintained PBAT tensile performance. The obtained materials showed higher hydrophobicity than neat PBAT. Thus, GR and UT demonstrated that they are advantageous additives for PBAT–resin compounding for rigid food packaging which are easy to process and adequate for industrial scalability. At the same time, they enhance its mechanical and hydrophobic performance.

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“…Biochar can provide a significant adsorption capacity due to its high surface functional group (Wang et al, ). This procedure is able to alter the chemical composition of the polymeric adsorbent thus improving the adsorption (Huang, Diao, et al, ; Varma, Deshpande, & Kennedy, ). The polymer/biochar composite has received considerable attention because of its low cost and its relatively high adsorption capacity for water contamination.…”

Section: Introductionmentioning

confidence: 99%

Nitrate removal from aqueous solutions by adsorption onto hydrogel‐rice husk biochar composite

Afjeh

Marandi

Zohuriaan‐Mehr

2020

Water Environment Research

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In the present study, we investigated the performance of hydrogel-rice husk biochar composites, as low-cost, alternative, and biocompatible adsorbents for separating nitrate ions from aqueous solutions. Hydrogel-biochar composite was synthesized at dosages of 2.5%, 3.6%, 4.8%, and 9.6% weight ratios of biochar. The composite was characterized by several common methods including FTIR, SEM, TEM, TGA, and DSC. In addition, the effect of contact time, initial concentration of nitrate ions, and solution pH were considered. The maximum removal of nitrate was about 34.3% at acidic pH (pH = 3) using 0.02 g of adsorbent in 25 ml of nitrate solution with the initial concentration (20 mg/L) and temperature of 25°C for 60 min. Based on the findings, 5% biochar in the composite was the optimal dosage. Adsorption kinetic study revealed that this process followed the first-order kinetic model. The experimental equilibrium adsorption data were tested by the Temkin isotherm model with R 2 > 0.97. Based on the thermodynamic studies, the adsorption process was endothermic and spontaneous. Overall, the results suggested that the obtained composite can be specifically employed for removal of contaminations from aqueous solutions. © 2020 Water Environment Federation • Practitioner points• Hydrogel-biochar composite provides a biocompatible and cost-effective adsorbent. • Hydrogel-biochar composite was applied to eliminate nitrate from aqueous solutions. • Nitrate removal increased in the synthesized composite upon elevation of the weight ratio of biochar to 0.2 g.

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Mechanisms of Adsorption of Heavy Metal Cations from Waters by an Amino Bio-Based Resin Derived from Rosin

Cited by 18 publications

References 28 publications

New Materials for 3D-Printing Based on Polycaprolactone with Gum Rosin and Beeswax as Additives

New Materials for 3D-Printing Based on Polycaprolactone with Gum Rosin and Beeswax as Additives

Improvement of PBAT Processability and Mechanical Performance by Blending with Pine Resin Derivatives for Injection Moulding Rigid Packaging with Enhanced Hydrophobicity

Nitrate removal from aqueous solutions by adsorption onto hydrogel‐rice husk biochar composite

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