New use for spent coffee ground as an adsorbent for tetracycline removal in water

Dai, Yingjie; Zhang, Kexin; Meng, Xianbing; Li, Jingjing; Guan, Xiaohong; Sun, Qiya; Sun, Yue; Wang, Wensi; Lin, Mei-Ying; Liu, Mei; Yang, Shengshu; Chen, Yan-Jun; Gao, Feng; Zhang, Xu; Liu, Zhihua

doi:10.1016/j.chemosphere.2018.09.150

Cited by 118 publications

(38 citation statements)

References 36 publications

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“…Addressing this concern, several studies [17,18] were reported in the literature, with the use of adsorption methods suggested as the most powerful tools. [18] Furthermore, in order to reduce the environmental impact and the associated cost, agricultural and food waste was carefully investigated as a tool for the removal of pollutants [19,20]. Starting from these considerations, with the aim of valorizing food waste, particularly chitosan from crab shell, attention in this work was focused on the removal of ketoprofen (Kp), adopted as a model emerging pollutant.…”

Section: Introductionmentioning

confidence: 99%

Chitosan Biopolymer from Crab Shell as Recyclable Film to Remove/Recover in Batch Ketoprofen from Water: Understanding the Factors Affecting the Adsorption Process

et al. 2019

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Seafood, a delight for many people, is sold in the market as a wide variety of products. However, seafood industries produce many by-products; for example, during the processing, the heads and shells of shellfish are generated as waste. This results in the generation of a large amount of shell waste that is accumulated over time, inducing a major environmental concern. Effective solutions for recycling shell waste should be taken into consideration, and the extraction of commercially useful substances like chitin and its derivates, such as chitosan, could be a valid solution for reducing the seafood waste’s environmental impact. Thus, during this work, we propose the use of chitosan as biowaste, to induce the formation of solid films useful for decontaminating water from emerging pollutants. In particular, ketoprofen was used as a model contaminant, and a high percentage of removal, at least 90%, was obtained in a short time under our experimental conditions. Thus, a comprehensive investigation into the adsorption of ketoprofen onto chitosan film was performed, detailing the nature of the adsorption by studying the effects of pH, temperature changes, and electrolyte presence in the solutions containing the pollutant. The process was found to be pH-dependent, involving meanly electrostatic interactions between the pollutant molecules and chitosan. The endothermic character of the adsorption was inferred. The kinetics of the process was investigated, showing that the pseudo second-order kinetic model best fit the experimental data. A recycling process of the adsorbent was proposed; therefore, the adsorbed pollutant can be recovered by reusing the same adsorbent material for further consecutive cycles of adsorption without affecting the efficiency for ketoprofen removal from water.

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Section: Introductionmentioning

confidence: 99%

Chitosan Biopolymer from Crab Shell as Recyclable Film to Remove/Recover in Batch Ketoprofen from Water: Understanding the Factors Affecting the Adsorption Process

et al. 2019

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“…Benzene rings in the TC molecular structure interact with the polarized aromatic rings (π‐ electron‐rich surfaces) of MC 1 via the π‐π electron‐donor–acceptor interaction. This kind of interaction is one of the most important nonhydrophobic adsorption driving forces (Dai et al, 2019). Regarding the Pa, the compound remains predominantly as neutral molecules at pH < pKa value (9.5).…”

Section: Resultsmentioning

confidence: 99%

Cotton textile waste valorization for removal of tetracycline and paracetamol alone and in mixtures from aqueous solutions: Effects of H₃PO₄ as an oxidizing agent

Akkouche

Boudrahem

Yahiaoui

et al. 2020

Water Environment Research

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The use of waste and by‐products locally available in large quantities and at low cost as adsorbents can be considered an appropriate approach for improving waste management and protecting the environment. Cotton textile waste was used to prepare adsorbents (MC) via pyrolysis followed by a chemical modification with H3PO4. MC samples were characterized by scanning electron microscopy, FTIR spectroscopy, and N2 adsorption–desorption isotherm. The results revealed that MC treated with 1 M H3PO4 (MC1) showed an excellent adsorption performance. The single and binary adsorption of tetracycline (TC) and paracetamol (Pa) onto MC1 were studied. In a single system, TC was better adsorbed than Pa and maximum adsorption capacities qm are 87.7 mg/g and 62 mg/g, respectively. The adsorption follows the Langmuir and pseudo‐second‐order kinetic models. For a binary system, the experimental data indicate that Pa (44.04 mg/g) is better adsorbed than TC (24.13 mg/g). Adsorption equilibrium data of TC and Pa evaluated by the selectivity extended‐Langmuir model in which selectivity factor was introduced provided good correlation results with the binary adsorption data. Cotton textile waste is potentially promising for the preparation of effective adsorbents for the removal of pharmaceutical residues in aqueous solutions. Practitioner points Valorization of cotton textile waste into adsorbents. Adsorbents were prepared by pyrolysis at 600°C followed by chemical modification in the presence of H3PO4. Removal of tetracycline (TC) and paracetamol (Pa) alone or in mixtures by adsorption. Adsorbent showed high‐capacity adsorption of the TC and Pa even in a mixture from solutions at low concentrations. The Langmuir and selectivity extended‐Langmuir models describe the adsorption of TC and Pa alone and in mixtures, respectively.

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“…Therefore, the adsorption process is influenced by the temperature and pH of the aqueous solution; concentration and molecular size of the adsorbate; and structure, polarity, specific surface area, and pore size of the adsorbent (Choi et al, ; Edathil, Shittu, Zain, Banat, & Haija, ). Among the various parameters affecting the adsorption process, pH is one of the most important because the ionic form of the adsorbate in the aqueous solution varies depending on the pH (Al‐Ghouti & Salih, ; Dai et al, ). To investigate the effect of pH on the adsorption of Pb(II) using CES, the pH was controlled to 2–10 within a contact time of 60 min.…”

Section: Resultsmentioning

confidence: 99%

Assessment of the adsorption kinetics, equilibrium, and thermodynamic for Pb(II) removal using a low‐cost hybrid biowaste adsorbent, eggshell/coffee ground/sericite

Choi

2019

Water Environment Research

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A hybrid adsorbent (CES), coffee grounds, eggshell powder and sericite as a binder, was prepared to remove Pb(II) from aqueous solution. The Fourier‐transform infrared spectroscopy analysis showed that the CES contained a large amount of OH groups and had a favorable structure for adsorbing heavy metals. The value of pHpzc of CES was estimated at 7.08. In the neutral pH region, the surface of CES is negatively charged and favorable for adsorption of Pb(II). The maximum Langmuir adsorption amount was 155.67 mg/g, and the adsorption process of Pb(II) using CES fitted pseudo‐second‐order kinetic model and Langmuir isotherm model. Moreover, the analysis of adsorption energy, free energy, enthalpy, and entropy found that the adsorption of Pb(II) onto CES was physical and a spontaneous exothermic reaction. CES is a hybrid adsorbent using general municipal waste and has great advantages in terms of environmental conservation and sustainable environmental circulation. This allows it to compete with other adsorbents. Practitioner points A hybrid adsorbent, coffee grounds, eggshell, and sericite (CES), was used to remove Pb(II) Adsorption of Pb(II) using CES in an aqueous solution was physical rather than chemical CES contained a large amount of OH groups and had a favorable structure for adsorbing heavy metals The reactivity and strength of the adsorption of Pb(II) onto CES was very good CES has great advantages in terms of environmental conservation and sustainable environmental circulation.

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New use for spent coffee ground as an adsorbent for tetracycline removal in water

Cited by 118 publications

References 36 publications

Chitosan Biopolymer from Crab Shell as Recyclable Film to Remove/Recover in Batch Ketoprofen from Water: Understanding the Factors Affecting the Adsorption Process

Chitosan Biopolymer from Crab Shell as Recyclable Film to Remove/Recover in Batch Ketoprofen from Water: Understanding the Factors Affecting the Adsorption Process

Cotton textile waste valorization for removal of tetracycline and paracetamol alone and in mixtures from aqueous solutions: Effects of H₃PO₄ as an oxidizing agent

Assessment of the adsorption kinetics, equilibrium, and thermodynamic for Pb(II) removal using a low‐cost hybrid biowaste adsorbent, eggshell/coffee ground/sericite

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New use for spent coffee ground as an adsorbent for tetracycline removal in water

Cited by 118 publications

References 36 publications

Chitosan Biopolymer from Crab Shell as Recyclable Film to Remove/Recover in Batch Ketoprofen from Water: Understanding the Factors Affecting the Adsorption Process

Chitosan Biopolymer from Crab Shell as Recyclable Film to Remove/Recover in Batch Ketoprofen from Water: Understanding the Factors Affecting the Adsorption Process

Cotton textile waste valorization for removal of tetracycline and paracetamol alone and in mixtures from aqueous solutions: Effects of H3PO4 as an oxidizing agent

Assessment of the adsorption kinetics, equilibrium, and thermodynamic for Pb(II) removal using a low‐cost hybrid biowaste adsorbent, eggshell/coffee ground/sericite

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Cotton textile waste valorization for removal of tetracycline and paracetamol alone and in mixtures from aqueous solutions: Effects of H₃PO₄ as an oxidizing agent