Uranium Removal from Aqueous Solution by Banyan Leaves: Equilibrium, Thermodynamic, Kinetic, and Mechanism Studies

Xia, Liangshu; Tan, Kaixuan; Wang, Xiao; Zheng, Wenyue; Liu, Wenjuan; Deng, Chao

doi:10.1061/(asce)ee.1943-7870.0000695

Cited by 32 publications

(5 citation statements)

References 26 publications

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“…Biosorption is not only cost effective, but it also provides an opportunity for the recycling of waste materials [15,16]. A variety of low cost fungal materials (native and modified) have been used as biosorbents for the removal of organic pollutants and heavy metal ions from aqueous solutions, including Lentinus sajor-caju [3,[17][18][19], Trametes versicolor [6], Aspergillus niger [14,20], and Lentinus edodes [21][22][23][24][25]. Additionally, uranium biosorption by various microbial biomasses (i.e., fungi, yeast, algae, and unicellular bacteria) are reported in the literature [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Amidoxime functionalized Trametes trogii pellets for removal of uranium(VI) from aqueous medium

Bayramoğlu

Arıca

2015

J Radioanal Nucl Chem

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Amidoxime modified Trametes trogii pellets were prepared by sequential reaction of fungal surfaces with glutaraldehyde, diaminomaleonitrile and hydroxylamine. Maximum biosorption capacities of the modified and native pellets were found to be 447.4 and 238.2 mg U(VI) g -1 fungal pellets, respectively. Biosorption equilibriums were established in about 45 min and the correlation regression coefficients show that the adsorption process can be well-defined by Langmuir equation. The biosorption of U(VI) ions was well described by the pseudo-second order kinetic model. The variations in enthalpy and entropy for the biosorbents were also calculated.

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Section: Introductionmentioning

confidence: 99%

Amidoxime functionalized Trametes trogii pellets for removal of uranium(VI) from aqueous medium

Bayramoğlu

Arıca

2015

J Radioanal Nucl Chem

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“…Moreover, Xia et al (2013) proposed that the uranium adsorption onto Banyan leaves mainly involves the −OH, C=O, P-O, and Si=O groups. With respect to fluoride adsorption, the comparison of the FTIR results of neem leaf powder before and after biosorption revealed that the peak intensities at approximately 3468 cm −1 (-OH), 2372 cm −1 (−C≡N), and 1640 cm -1 (C=O) decreased and the peaks slightly shifted to 3456 cm -1 , 2369 cm −1 , and 1608 cm −1 , respectively.…”

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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“…e XRD result of the rice stem before adsorption represented by the curve a shows di raction peaks at 2θ 15.64, 22.08, and 29.17, whereas that after adsorption shown in curve b illustrates the weaker di raction peak at 2θ 15.64, and 22.08, and even disappearance of the peak at 2θ 29.17°, implying that new crystals are not formed, and that the number of the crystal structure decreases in the adsorption process. is may be due to the adsorption of uranium(VI) by modi ed rice stem, which causes part of the molecule structures change from crystal to amorphous [21,42]. e following conclusions can be drawn:…”

Section: Xrd Analysismentioning

confidence: 90%

“…is may be because the adsorption capacity of modi ed rice stem per unit area decreases as a result of the aggregation of excessive adsorbent [21].…”

Section: E Ect Of the Adsorbent Dosementioning

confidence: 99%

“…Disposed agricultural products such as biosorbents are considered to be one of the most potential adsorbents [19]. Until now, various disposed agricultural biosorbents, such as wood powder, wheat straw, grapefruit peel, coir pith, and banyan leaves [19][20][21][22], have been investigated for the adsorption of uranium(VI). ese biosorbents have been identified as an efficient kind of sorbent for adsorption of uranium.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Uranium(VI) from Aqueous Solution by Modified Rice Stem

Xiao-teng

Jiang

Xiao

et al. 2019

Journal of Chemistry

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The biosorption is an effective and economical method to deal with the wastewater with low concentrations of uranium. In this study, we present a systematic investigation of the adsorption properties, such as the kinetics, thermodynamics, and mechanisms, of modified rice stems. The rice stems treated with 0.5 mol/L NaOH solutions show higher removal percentage of uranium than those unmodified under the conditions of initial pH (pH = 4.0), absorbent dosage (5–8 g/L), temperature (T = 298 K), and adsorption equilibrium time (t = 180 min). The removal percentage of uranium(VI) decreases with increasing initial concentration of uranium(VI). The Langmuir isotherm model, which suggests predominant monolayered sorption, is better than Freundlich and Temkin models to elucidate the adsorption isotherm of adsorbed uranium. Kinetic analyses indicate that the uranium(VI) adsorption of the modified rice stem is mainly controlled by surface adsorption. The pseudo-second-order kinetic model, with the correlation coefficient of R2 = 0.9992, fits the adsorption process much better than other kinetic models (e.g., pseudo-second-order kinetic model, Elovich kinetic model, and intraparticle diffusion model). The thermodynamic parameters ΔG0, ΔH0, and ΔS0 demonstrate that the adsorption of uranium(VI) is an endothermic and spontaneous process, which can be promoted by temperature. The adsorption of uranium can change the morphology and the structure characteristics of the modified rice stem through interaction with the adsorption sites, such as O-H, C=O, Si=O, and P-O on the surface.

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Uranium Removal from Aqueous Solution by Banyan Leaves: Equilibrium, Thermodynamic, Kinetic, and Mechanism Studies

Cited by 32 publications

References 26 publications

Amidoxime functionalized Trametes trogii pellets for removal of uranium(VI) from aqueous medium

Amidoxime functionalized Trametes trogii pellets for removal of uranium(VI) from aqueous medium

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

Adsorption of Uranium(VI) from Aqueous Solution by Modified Rice Stem

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