Multilayer adsorption of Cu(II) and Cd(II) over Brazilian Orchid Tree ( Pata-de-vaca ) and its adsorptive properties

Jorgetto, Alexandre de Oliveira; Silva, Adrielli Cristina Peres da; Wondracek, Marcos Henrique Pereira; Silva, Rafael Innocenti Vieira da; Velini, Edivaldo Domingues; Saeki, Margarida Júri; Pedrosa, Valber A.; Castro, Gustavo Rocha de

doi:10.1016/j.apsusc.2015.03.142

Cited by 38 publications

(14 citation statements)

References 30 publications

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“…This data suggested that adsorption of copper occurred on a monolayer, as assumed in the formulation of the Langmuir model onto the BSO surface. This experimental data is in consistent with most other available data (35)(36)(37)(38). A dimensionless separation factor or equilibrium constant R L (20), was used to further evaluate the favorable Langmuir isotherm model (Equation 6).…”

Section: Isotherm Modelingsupporting

confidence: 63%

The Potential of Sargassum oligocystum Harvested From Persian Gulf for the Adsorption of Copper Ions From Aqueous Solutions

Ramavandi¹,

Ebrahimi²,

Hashemi³

et al. 2015

Avicenna J Environ Health Eng

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This study revealed the potential of a brown alga, Sargassum oligocystum, harvested from Persian Gulf for the Cu 2+ adsorption from aqueous solutions. The adsorption kinetic and isotherm and the characteristics of the biomass prepared from S. oligocystum (BSO) were investigated. The BSO was a mesoporous adsorbent with Brunauer, Emmett, and Teller (BET) surface area, a total pore volume, and an average pore diameter of 0.487 m 2 /g, 1.423 cm 3 /g and 12.5 nm, respectively. Fourier transform infrared spectroscopy (FTIR) analysis showed that there were many active functional groups such as alcohol and phenol groups, carbonyl, ethers, and esters on the BSO. Batch tests demonstrated that the Langmuir isotherm model best represented the equilibrium data with maximum copper ions adsorption capacity of 8.23 mg/g. Pseudo-second-order kinetic model was found to satisfactory describe the adsorption process. BSO is an easy-prepared adsorbent and could be an option for the treatment of Cu 2+ -laden wastewaters.

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Section: Isotherm Modelingsupporting

confidence: 63%

The Potential of Sargassum oligocystum Harvested From Persian Gulf for the Adsorption of Copper Ions From Aqueous Solutions

Ramavandi¹,

Ebrahimi²,

Hashemi³

et al. 2015

Avicenna J Environ Health Eng

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“…Typical adsorption/desorption isotherm of biosorbent derived from Brazilian orchid tree (pata-de-vaca) leaves and its pore size distribution(Jorgetto et al, 2015) Figure S3. (a) SEM image of rubber (Hevea brasiliensis) leaf powders, (b)-(c) EDS spectra, and (d) confirmation of the ion exchange mechanism (Wan Ngah and Hanafiah, 2008) Figure S4.…”

mentioning

confidence: 99%

Removal of various contaminants from water by renewable lignocellulose-derived biosorbents: a comprehensive and critical review

Tran

Nguyen

Woo

et al. 2019

Critical Reviews in Environmental Science and Technology

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Contaminants in water bodies cause potential health risks for humans and great environmental threats. Therefore, the development and exploration of low-cost, promising adsorbents to remove contaminants from water resources as a sustainable option is one focus of the scientific community. Here, we conducted a critical review regarding the application of pristine and modified/treated biosorbents derived from leaves for the removal of various contaminants. These include potentially toxic cationic and oxyanionic metal ions, radioactive metal ions, rare earth elements, organic cationic and anionic dyes, phosphate, ammonium, and fluoride from water media. Similar to lignocellulosebased biosorbents, leaf-based biosorbents exhibit a low specific surface area and total pore volume but have abundant surface functional groups, high concentrations of light metals, and a high net surface charge density. The maximum adsorption capacity of biosorbents strongly depends on the operation conditions, experiment types, and adsorbate nature. The absorption mechanism of contaminants onto biosorbents is complex; therefore, typical experiments used to identify the primary mechanism of the adsorption of contaminants onto biosorbents were thoroughly discussed. It was concluded that byproduct leaves are renewable, biodegradable, and promising biosorbents which have the potential to be used as a low-cost green alternative to commercial activated carbon for effective removal of various contaminants from the water environment in the real-scale plants.

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“…This result is already expected because it is a natural material in which its main constituent is cellulose (glycosidic groups). The intense band observed at 3,385 cm -1 is attributed to the vibrational stretching of hydroxyl groups OH existing in each glycosidic unit of the cellulose polymer [87]. In the region of 2,921 and 2,843 cm -1 , two bands are observed that can be attributed to the symmetrical and asymmetric vibrational stretching of CH2, respectively [87], [88].…”

Section: A Characterization Of the Biosorbent T Angustifolia L 1) Fti...mentioning

confidence: 94%

Use of Typha angustifolia L. as Biosorbent to Remove Chloramphenicol in Aqueous Samples

Pasta

Silva

Jorgetto

et al. 2022

EJCHEM

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The identification and quantification of different contaminants in natural waters have been widely disseminated in scientific journals. In the last two decades, removal from aqueous samples of drugs and their metabolites, also called emerging contaminants, have been highlighted. The problem of their existence in the environment, besides its persistence, is related to the occurrence of more resistant bacteria, being a serious risk to health. Thus, the objectives of this project were characterization of cattail leaves, Typha angustifolia L. in natura, and its application for the removal of the antibiotic chloramphenicol in aqueous samples. The material was characterized by Fourier Transform in the Infrared Region (FTIR), Point of Zero Charge (PZC), Nuclear Magnetic Resonance (NMR), Scanning Electron Microscopy (SEM), as well as surface area measurements (Brunauer, Emmett, Teller-BET). Batch experiments were performed considering the influence of pH, contact time and analyte concentration, whose supernatant solution was quantified by Ultra Performance Liquid Chromatography (UPLC). Both results, regarding FTIR spectrum and NMR analysis, corroborated by identifying functional chemical groups that promote interaction between biosorbent and analyte. The pHPZC, estimated around 5.75, was considered to choose the ideal pH of the medium that favors adsorption. By means of SEM images, the material was characterized by parallel plates with large number of channels (heterogeneous surface). Type II isotherm was obtained from BET method, with low surface area, nonporous or macroporous, mono and multilayer adsorption. Pseudo-second order was the model that best fit the adsorption kinetics, while for determining the maximum capacity, the Freundlich model showed the highest agreement.

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Multilayer adsorption of Cu(II) and Cd(II) over Brazilian Orchid Tree ( Pata-de-vaca ) and its adsorptive properties

Cited by 38 publications

References 30 publications

The Potential of Sargassum oligocystum Harvested From Persian Gulf for the Adsorption of Copper Ions From Aqueous Solutions

The Potential of Sargassum oligocystum Harvested From Persian Gulf for the Adsorption of Copper Ions From Aqueous Solutions

Removal of various contaminants from water by renewable lignocellulose-derived biosorbents: a comprehensive and critical review

Use of Typha angustifolia L. as Biosorbent to Remove Chloramphenicol in Aqueous Samples

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