Turning waste into adsorbent: Modification of discarded orange peel for highly efficient removal of Cd(II) from aqueous solution

Tang, Haoyue; Zhang, Youwen; Xiao, Qi; Zhao, Xiaolan; Yang, Shitong

doi:10.1016/j.bej.2022.108497

Cited by 15 publications

(3 citation statements)

References 57 publications

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“…Finally, the amount of metal ions left in the filtrate was determined using an Atomic Absorption Spectrophotometer (AAS). After the adsorption process, the removal percentage (%) and adsorption capacity (mg/g) were calculated using Equations (11) and (12) [13]:…”

Section: Removal Efficiency Studiesmentioning

confidence: 99%

“…Despite its low specific area, this biosorbent was proven to be an efficient material (qmax = 7.14 mg/g) [10]. Modified orange peel materials were synthesized and applied for efficient cadmium (II)-bearing wastewater purification by Tang et al [11], showing that mercaptoacetic acid-orange peel OH exhibits strong cadmium-sulfhydryl binding. In contrast, Altunkaynak et al [12] examined the removal of cobalt (II) ions from aqueous solutions using orange peel waste.…”

Section: Introductionmentioning

confidence: 99%

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Development and Characterization of Biosorbent Film from Eggshell/Orange Waste Enriched with Banana Starch

Vonnie,

Rovina,

‘Aqilah

et al. 2023

Polymers

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The conversion of waste into a valuable product is regarded as a promising alternative to relieving the burden of solid waste management and could be beneficial to the environment and humans. This study is focused on utilizing eggshell and orange peel enriched with banana starch to fabricate biofilm via the casting technique. The developed film is further characterized by field emission scanning electron microscope (FESEM), energy dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The physical properties of films, including thickness, density, color, porosity, moisture content, water solubility, water absorption, and water vapor permeability, were also characterized. The removal efficiency of the metal ions onto film at different contact times, pH, biosorbent dosages, and initial concentration of Cd(II) were analyzed using atomic absorption spectroscopy (AAS). The film’s surface was found to have a porous and rough structure with no cracks, which can enhance the target analytes interactions. EDX and XRD analyses confirmed that eggshell particles were made of calcium carbonate (CaCO3), and the appearance of the main peak at 2θ = 29.65° and 2θ = 29.49° proves the presence of calcite in eggshells. The FTIR indicated that the films contain various functional groups, such as alkane (C-H), hydroxyl (-OH), carbonyl (C=O), carbonate (CO32−), and carboxylic acid (-COOH) that can act as biosorption materials. According to the findings, the developed film exhibits a notable enhancement in its water barrier properties, thereby leading to improved adsorption capacity. The batch experiments showed that the film obtained the maximum removal percentage at pH = 8 and 6 g of biosorbent dose. Notably, the developed film could reach sorption equilibrium within 120 min at the initial concentration of 80 mg/L and remove 99.95% of Cd(II) in the aqueous solutions. This outcome presents potential opportunities for the application of these films in the food industry as both biosorbents and packaging materials. Such utilization can significantly enhance the overall quality of food products.

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Section: Removal Efficiency Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Biosorbent Film from Eggshell/Orange Waste Enriched with Banana Starch

Vonnie,

Rovina,

‘Aqilah

et al. 2023

Polymers

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“…Ogata et al reported that a waste biomass adsorbent produced from mangosteen shells (MGS1000) exhibited a good adsorption capacity of 12.0 mg/g for adsorbing cadmium ions from aqueous media . In addition, rice husk, saw dust, corn stalk, peanut skins, and coconut waste were found to be effective in removal of heavy ions. − However, the single biomass adsorbent was commonly limited in practical applications due to its undesirable adsorption capacity, thus the modification treatment was selected to the enhancement of active sites, like surface functional groups and specific surface area. − …”

Section: Introductionmentioning

confidence: 99%

Birnessite-Type MnO₂ Modified Sustainable Biomass Fiber toward Adsorption Removal Heavy Metal Ion from Actual River Aquatic Environment

Zhang,

Hua,

Zhu

et al. 2024

Langmuir

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In this work, a novel birnessite-type MnO 2 modified corn husk sustainable biomass fiber (MnO 2 @CHF) adsorbent was fabricated for efficient cadmium (Cd) removal from aquatic environments. MnO 2 @CHF was designed from KMnO 4 hydrothermally treated with corn husk fibers. Various characterization revealed that MnO 2 @CHF possessed the hierarchical structure nanosheets, large specific surface area, and multiple oxygencontaining functional groups. Batch adsorption experimental results indicated that the highest Cd (II) removal rate could be obtained at the optimal conditions of adsorbent amount of 0.200 g/L, adsorption time of 600 min, pH 6.00, and temperature of 40.0 °C. Adsorption isotherm and kinetics results showed that Cd (II) adsorption behavior on MnO 2 @CHF was a monolayer adsorption process and dominated by chemisorption and intraparticle diffusion. The optimum adsorption capacity (Langmuir model) of Cd (II) on MnO 2 @CHF was 23.0 mg/g, which was higher than those of other reported common biomass adsorbent materials. Further investigation indicated that the adsorption of Cd (II) on MnO 2 @CHF involved mainly ion exchange, surface complexation, redox reaction, and electrostatic attraction. Moreover, the maximum Cd (II) removal rate on MnO 2 @CHF from natural river samples (Xicheng Canal) could reach 59.2% during the first cycle test. This study showed that MnO 2 @CHF was an ideal candidate in Cd (II) practical application treatment, providing references for resource utilization of agricultural wastes for heavy metal removal.

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Adsorption of cadmium vapor by calcium-based adsorbents in simulated flue gas: Experimental and density functional theory studies

Cheng

Huang

Zhu

et al. 2023

Applied Surface Science

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Turning waste into adsorbent: Modification of discarded orange peel for highly efficient removal of Cd(II) from aqueous solution

Cited by 15 publications

References 57 publications

Development and Characterization of Biosorbent Film from Eggshell/Orange Waste Enriched with Banana Starch

Development and Characterization of Biosorbent Film from Eggshell/Orange Waste Enriched with Banana Starch

Birnessite-Type MnO₂ Modified Sustainable Biomass Fiber toward Adsorption Removal Heavy Metal Ion from Actual River Aquatic Environment

Adsorption of cadmium vapor by calcium-based adsorbents in simulated flue gas: Experimental and density functional theory studies

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Turning waste into adsorbent: Modification of discarded orange peel for highly efficient removal of Cd(II) from aqueous solution

Cited by 15 publications

References 57 publications

Development and Characterization of Biosorbent Film from Eggshell/Orange Waste Enriched with Banana Starch

Development and Characterization of Biosorbent Film from Eggshell/Orange Waste Enriched with Banana Starch

Birnessite-Type MnO2 Modified Sustainable Biomass Fiber toward Adsorption Removal Heavy Metal Ion from Actual River Aquatic Environment

Adsorption of cadmium vapor by calcium-based adsorbents in simulated flue gas: Experimental and density functional theory studies

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Birnessite-Type MnO₂ Modified Sustainable Biomass Fiber toward Adsorption Removal Heavy Metal Ion from Actual River Aquatic Environment