Adsorption of Nickel Ion in Aqueous Using Rubber-Based Hydrogel

Firdaus, Fazira; Idris, Mohd Nazri; Yusoff, Siti Fairus Mohd

doi:10.1007/s10924-019-01469-0

Cited by 16 publications

(7 citation statements)

References 40 publications

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“…For instance, hydrogels have found applications in the biomedical field [ 16 ], tissue engineering [ 17 , 18 , 19 , 20 , 21 ], drug transport [ 22 ], agriculture [ 23 ], and the removal of heavy metals. In the context of heavy metal removal, hydrogels have proven successful in eliminating metal ions such as copper [ 24 , 25 ], nickel [ 26 , 27 ], lead [ 28 ], arsenic [ 29 ], cadmium [ 30 ], chromium [ 31 ], among others.…”

Section: Introductionmentioning

confidence: 99%

Effective Removal of Cu2+ Ions from Aqueous Media Using Poly(acrylamide-co-itaconic acid) Hydrogels in a Semi-Continuous Process

Cortes Ortega,

Hernández-Montelongo,

Hernández-Montelongo

et al. 2023

Gels

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Adsorption is one of the most crucial processes in water treatment today. It offers a low-cost solution that does not require specialized equipment or state-of-the-art technology while efficiently removing dissolved contaminants, including heavy metals. This process allows for the utilization of natural or artificial adsorbents or a combination of both. In this context, polymeric materials play a fundamental role, as they enable the development of adsorbent materials using biopolymers and synthetic polymers. The latter can be used multiple times and can absorb large amounts of water per gram of polymer. This paper focuses on utilizing adsorption through hydrogels composed of poly(acrylamide-co-itaconic acid) for removing Cu2+ ions dissolved in aqueous media in a semi-continuous process. The synthesized hydrogels were first immersed in 0.1 M NaOH aqueous solutions, enabling OH− ions to enter the gel matrix and incorporate into the polymer surface. Consequently, the copper ions were recovered as Cu(OH)2 on the surface of the hydrogel rather than within it, allowing the solid precipitates to be easily separated by decantation. Remarkably, the hydrogels demonstrated an impressive 98% removal efficiency of the ions from the solution in unstirred conditions at 30 °C within 48 h. A subsequent study involved a serial process, demonstrating the hydrogels’ reusability for up to eight cycles while maintaining their Cu2+ ion recovery capacity above 80%. Additionally, these hydrogels showcased their capability to remove Cu2+ ions even from media with ion concentrations below 100 ppm.

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Section: Introductionmentioning

confidence: 99%

Effective Removal of Cu2+ Ions from Aqueous Media Using Poly(acrylamide-co-itaconic acid) Hydrogels in a Semi-Continuous Process

Cortes Ortega,

Hernández-Montelongo,

Hernández-Montelongo

et al. 2023

Gels

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“…Various forms of hydrogels, such as cellulose, polyvinyl alcohol, carboxymethyl cellulose, starch, and polyacrylamide, have been used as adsorbent in heavy metal removal. However, most of the hydrogels are synthetic polymers with high cost, non-environment friendly and low stability [4].…”

Section: Introductionmentioning

confidence: 99%

“…NR is derived from the rubber tree, scientifically known as Hevea brasiliensis, which possesses a cis 1,4-polyisoprene chain. The unsaturated C=C bond present in its chain create natural rubber with poor heat resistance to weather and reagents [4]. The hydrophilic polymer known as acrylic acid (AAc) is subjected to crosslink in order to enhance its adsorption flux and hydrogel selectivity.…”

Section: Introductionmentioning

confidence: 99%

“…Various types of pollutants such as nickel, methylene blue, and malachite green have been previously studied using rubber-based hydrogel [4,7,8]. Several low-cost agriculture wastes have adsorption capability for removing Cu from wastewater, such as rice husk [9], banana peel, fish scale [10], chitosan [11], sawdust [12], neem leaves [13], waste tea leaves [14], coconut shell, orange peel [15] and watermelon rind [16].…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Cu²⁺ Ions using Rubber-Based Hydrogel

Jamaluddin,

Mohd Ghazi,

Nik Yusoff

et al. 2023

BIO Web Conf.

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Hydrogels are one of the most powerful adsorbents for removing heavy metal ions among all adsorbents. However, most of today's hydrogels are synthetic polymers with high costs, non-environmentally friendly, and have low stability. Therefore, in this study, natural rubber (NR) was used as the basic material for hydrogels due to its high mechanical properties, plasticity or viscosity, elasticity, and tensile strength. This study is focusing on the Cu adsorption method using a rubber-based hydrogel that is prepared with a combination of acrylic acid (AA) and methylenebisacrylamide (MBA). The rubber-based hydrogel was immersed in the synthetic Cu wastewater, and the percentage removal was calculated. Cu initial concentration, contact time, and rotation speed were the three independent variables used for optimization using Response Surface Methodology (RSM). With an initial Cu concentration of 47.66 mg/L, a contact time of 10 hours, and a rotation speed of 91.32 rpm, RSM optimization shows that the best conditions for Cu removal are 72.19%. The SEM-EDX micrograph of the hydrogel before adsorption shows numerous pores, but after adsorption it is smoother and has fewer holes. This study will contribute to the development of a new method to remove Cu from wastewater.

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“…Adding acrylic acid and pectin to natural rubber (NR) enhances the strength of the hydrogel, resulting in improved mechanical properties such as strength and elasticity. This modification also improves the hydrogel's water uptake and swelling properties (Firdaus et al 2019). These standards play a vital role in removing heavy metals and dyes from water and their utilization in agricultural practices (Vudjung & Saengsuwan 2018).…”

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confidence: 99%

Optimizing Methylene Blue Dye Adsorption onto Liquid Natural Rubber-Based Hydrogel: Kinetics, Isotherms and Reusability

Abdul Sattar,

Mohd Khalid,

M. Yusoff

2024

JSM

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In recent years, notable advancements have taken place in the textile industry, particularly with the widespread use of synthetic dyes such as methylene blue (MB). However, the environmental impact of these dyes has raised significant concerns. Their potential to influence both chemical and biochemical demand poses risks, leading to potential disruptions in aquatic plant photosynthesis. Additionally, concerns exist regarding the toxicity and potential carcinogenicity of these dyes to humans. This study achieved successful hydrogel synthesis through the efficient utilization of ultrasonic methods, combining liquid natural rubber (LNR), acrylic acid (AAc), and pectin (Pc) to adsorb MB from aqueous solutions. Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) were employed to analyze the structure. Utilizing Response Surface Methodology (RSM), the study investigated the effects of the AAc:LNR weight ratio and Pc weight on hydrogel preparation for MB removal. This led to the development of a quadratic polynomial model with an ANOVA-derived R2 value of 0.9970. Optimal conditions for hydrogel production were identified as a 3.00 g/g AAc:LNR weight ratio and 0.0325g of Pc, resulting in an impressive 99.07% MB removal effectiveness. The limit of detection (LOD) for methylene blue adsorption was calculated at 0.64 ppm. The kinetics and isotherms of MB removal were described by the pseudo-second-order and Freundlich models, respectively. Furthermore, the investigation into hydrogel reusability demonstrated its capability for up to five utilization cycles. The LNR/AAc/Pc hydrogel exhibits promising potential as an effective, cost-efficient, and environmentally conscious adsorbent for MB removal. This makes it applicable to water treatment scenarios involving cationic dyes.

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Adsorption of Nickel Ion in Aqueous Using Rubber-Based Hydrogel

Cited by 16 publications

References 40 publications

Effective Removal of Cu2+ Ions from Aqueous Media Using Poly(acrylamide-co-itaconic acid) Hydrogels in a Semi-Continuous Process

Effective Removal of Cu2+ Ions from Aqueous Media Using Poly(acrylamide-co-itaconic acid) Hydrogels in a Semi-Continuous Process

Adsorption of Cu²⁺ Ions using Rubber-Based Hydrogel

Optimizing Methylene Blue Dye Adsorption onto Liquid Natural Rubber-Based Hydrogel: Kinetics, Isotherms and Reusability

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Adsorption of Nickel Ion in Aqueous Using Rubber-Based Hydrogel

Cited by 16 publications

References 40 publications

Effective Removal of Cu2+ Ions from Aqueous Media Using Poly(acrylamide-co-itaconic acid) Hydrogels in a Semi-Continuous Process

Effective Removal of Cu2+ Ions from Aqueous Media Using Poly(acrylamide-co-itaconic acid) Hydrogels in a Semi-Continuous Process

Adsorption of Cu2+ Ions using Rubber-Based Hydrogel

Optimizing Methylene Blue Dye Adsorption onto Liquid Natural Rubber-Based Hydrogel: Kinetics, Isotherms and Reusability

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Adsorption of Cu²⁺ Ions using Rubber-Based Hydrogel