{"title":"Comparative analysis of Cu(II) and Ni(II) removal using <i>Agaricus bisporus</i> mushroom and spent mushroom compost as biosorbents.","authors":"Nisha Sharma, Ankita","doi":"10.1080/15226514.2025.2509810","DOIUrl":null,"url":null,"abstract":"<p><p>The use of agricultural waste products as biosorbents for the removal of heavy metals is inclining nowadays, as they are highly efficient and economically reliable. In the present study, <i>Agaricus bisporus</i> mushroom (ABM) and its spent mushroom compost (SMC) samples are used as biosorbents to find and compare their efficiency for the removal of Cu(II) and Ni(II) ions from aqueous solutions. The optimal conditions for maximum biosorption were obtained at pH 5, 0.5 g biosorbent dosage per 10 mL, 6 h of contact time, and initial concentration of 17 and 30 µg/mL for Cu (II) and Ni(II). Pseudo second order kinetic model, with (<i>R</i><sup>2</sup> > 0.999) for both the metals and Freundlich isotherm model with (<i>R</i><sup>2</sup> > 0.959) for Cu(II) and (<i>R</i><sup>2</sup> > 0.985) for Ni(II) best described the biosorption data. Thermodynamic analysis revealed the spontaneous and endothermic nature of the biosorption process. The SEM, EDX, and FTIR analysis were conducted to determine the metal uptake and presence of functional groups responsible for biosorption of metals. FESEM analyses has confirmed the surface morphology; the presence of Cu(II) and Ni(II) peaks after adsorption were confirmed by EDX; and the FTIR study confirmed the presence of hydroxyl, carboxyl, amine, phosphate, and amide functional groups in the biomass. The results demonstrated that SMC exhibited greater biosorption efficiency [93.88% for Cu(II) and 88.5% for Ni(II)] than ABM [91.43% for Cu(II) and 86.63% for Ni(II)], in order Cu(II) > Ni(II), making both viable options for the removal of heavy metals from aqueous medium. Furthermore, both the biosorbents have shown remarkable regeneration and recyclability up to eight adsorption-desorption cycles with appreciable adsorption for both the metals.</p>","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-18"},"PeriodicalIF":3.4000,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Phytoremediation","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/15226514.2025.2509810","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
The use of agricultural waste products as biosorbents for the removal of heavy metals is inclining nowadays, as they are highly efficient and economically reliable. In the present study, Agaricus bisporus mushroom (ABM) and its spent mushroom compost (SMC) samples are used as biosorbents to find and compare their efficiency for the removal of Cu(II) and Ni(II) ions from aqueous solutions. The optimal conditions for maximum biosorption were obtained at pH 5, 0.5 g biosorbent dosage per 10 mL, 6 h of contact time, and initial concentration of 17 and 30 µg/mL for Cu (II) and Ni(II). Pseudo second order kinetic model, with (R2 > 0.999) for both the metals and Freundlich isotherm model with (R2 > 0.959) for Cu(II) and (R2 > 0.985) for Ni(II) best described the biosorption data. Thermodynamic analysis revealed the spontaneous and endothermic nature of the biosorption process. The SEM, EDX, and FTIR analysis were conducted to determine the metal uptake and presence of functional groups responsible for biosorption of metals. FESEM analyses has confirmed the surface morphology; the presence of Cu(II) and Ni(II) peaks after adsorption were confirmed by EDX; and the FTIR study confirmed the presence of hydroxyl, carboxyl, amine, phosphate, and amide functional groups in the biomass. The results demonstrated that SMC exhibited greater biosorption efficiency [93.88% for Cu(II) and 88.5% for Ni(II)] than ABM [91.43% for Cu(II) and 86.63% for Ni(II)], in order Cu(II) > Ni(II), making both viable options for the removal of heavy metals from aqueous medium. Furthermore, both the biosorbents have shown remarkable regeneration and recyclability up to eight adsorption-desorption cycles with appreciable adsorption for both the metals.
期刊介绍:
The International Journal of Phytoremediation (IJP) is the first journal devoted to the publication of laboratory and field research describing the use of plant systems to solve environmental problems by enabling the remediation of soil, water, and air quality and by restoring ecosystem services in managed landscapes. Traditional phytoremediation has largely focused on soil and groundwater clean-up of hazardous contaminants. Phytotechnology expands this umbrella to include many of the natural resource management challenges we face in cities, on farms, and other landscapes more integrated with daily public activities. Wetlands that treat wastewater, rain gardens that treat stormwater, poplar tree plantings that contain pollutants, urban tree canopies that treat air pollution, and specialized plants that treat decommissioned mine sites are just a few examples of phytotechnologies.