Application of raw peach shell particles for removal of methylene blue

Marković, Smilja; Stanković, Ana; Lopičić, Zorica; Lazarević, Slavica; Stojanović, Mirjana; Uskoković, Dragan

doi:10.1016/j.jece.2015.04.002

Cited by 87 publications

(41 citation statements)

References 36 publications

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“…This type of problem creates the demand for the development of new low cost adsorbents (Isah et al 2015). In this way, different low cost adsorbents have been investigated, including, peach shells (Marković et al 2015), processed grapes (Saygılı et al 2015), chitin (Dotto et al 2015a), chitosan films (Dotto et al 2015b), Spirulina platensis , montmorillonitic clay (Günay et al 2013) and others (Salleh et al 2011). Chitin has been reported as a great potential low cost adsorbent, being a biodegradable and renewable biopolymer (Tang et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Interpretations about methylene blue adsorption by surface modified chitin using the statistical physics treatment

et al. 2015

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In this work, the adsorption of methylene blue (MB) on surface modified chitin (SMC) was studied at molecular level using the statistical physics theory. SMC adsorbent was prepared, characterized and applied for MB adsorption. Equilibrium curves were obtained at different temperatures (298, 308, 318 and 328 K) and interpreted by the statistical physics formulism. The parameters, such as, 'n' (number of adsorbed molecule(s) per site), 'N m ' (receptor site density) and 'c 1/2 ' (concentration at half saturation) were estimated and interpreted in detail. At finally, an interaction mechanism was proposed. The results revealed that the MB adsorption on SMC can be successfully represented by the statistical physics theory. The statistical physics parameters showed that the physicochemical interactions between MB and SMC are dependent of the temperature. At 298 K, the MB molecules were anchored by one or two receptor sites, in parallel to the SMC surface (probably hydroxyl and N-acetyl groups on the SMC surface). Otherwise, at 308, 318 and 328 K, the 'n' values higher than 1, indicated a perpendicular anchorage. List of symbolsARE Average relative error (%) BET Brunauer, Emmett and Teller method BJH Barrett, Joyner and Halenda method C 0 Initial dye concentration (mg/L) c Equilibrium dye concentration (mg/L) c 1/2 Concentration at half saturation (mg/L) FT-IR Fourier transform infrared spectroscopy k B Boltzmann constant (J/K) MB Methylene blue M a Adsorbed quantity (mg/g) M M nN m (mg/g) m M a /N a N a Number of adsorbed molecules N i Receptor site occupation state N m Receptor site density (mg/g) n Number of adsorbed molecules per site n 0 Anchorage number R 2 Coefficient of determination, dimensionless SEM Scanning electron microscopy SMC Surface modified chitin T Temperature (K) UA Ultrasound-assisted V Volume of solution (L) X Adsorbent amount (g) XRD X-ray diffraction Z gcGrand canonical partition functionGreek symbols b 1/k B T eReceptor site adsorption energy (kJ/mol) l Chemical potential (kJ/mol) k max Maximum wavelength of MB

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Section: Introductionmentioning

confidence: 99%

Interpretations about methylene blue adsorption by surface modified chitin using the statistical physics treatment

et al. 2015

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“…After MB adsorption, the shift of bands were observed for O-H at 3339.71 cm −1 , C-H stretching at 2923.12 cm −1 , C=O stretching at 1740 cm −1 , and in fingerprint region, the two strong bands also shifted to 1224.67 cm −1 and 1032.01 cm −1 . This indicates the involvement of these functional groups in MB adsorption [36]. Figure 2b shows the FTIR spectra of black NOS before and after MB adsorption.…”

Section: Chn Compositionmentioning

confidence: 85%

Utilization of nano-olive stones in environmental remediation of methylene blue from water

Al-Ghouti

Dib

2020

J Environ Health Sci Engineer

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Background The use of agricultural waste as a low-cost adsorbent for the removal of hazardous methylene blue (MB) from aqueous solution was investigated. In this research, the potentiality of using black nano olive stones (black NOS) and green nano olive stones (green NOS) for MB adsorption was conducted. Methods Various remediation parameters such as initial MB concentration, pH, and temperature were investigated. Thermodynamic study was carried out to determine the homogeneity of the adsorbent and spontaneity of the adsorption process. Different physical and chemical characterizations were studied using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), Brunauer-Emmett-Teller (BET) surface area, pore radius and pore volume. Results It was found that NOS exhibits an acidic nature, however the highest MB removal efficiency was recorded at pH 10; reaching up to 71%. The negative value of the heat of the adsorption process (ΔH°) indicated the reaction followed an exothermic pathway while the negative value of Gibbs adsorption (ΔG°) further suggested its spontaneous nature. The results indicated that the Freundlich model described well the adsorption process with 99.5% correlation coefficient for green NOS. FTIR was used to analyze functional groups on the adsorbents' surfaces that could play vital roles in the remediation process. SEM analysis revealed that the adsorbents comprised of abundant spherical deep cavities and porous nature. Conclusion The result obtained successfully demonstrated the potential of using black and green NOS as suitable adsorbents for the removal of MB from water.

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“…1 that PS poses multilayer structure with numerous macropores which enables fluid to penetrate into the internal layer of the material allowing deeper diffusion and better contact of Cu(II) ions with present functional groups. The average pore diameter of PS structure was found to be 28.5 nm [14] which is considered as desirable for diffusion and binding of metal species from aqueous solutions.…”

Section: Figure 1 Ftir Spectrum and Sem Image Of Ps Samplementioning

confidence: 99%

Lignocellulosic Waste Material – From Landfill to Sorbent and Fuel

Lopičić¹,

Stojanović²,

Milojković³

et al. 2017

EJSD

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The most important source of renewable energy in Serbia represents biomass (60.3 %) with total potential of 3.405 million toe. Almost half of this amount (1.67 million toe) represents agricultural and industrial waste, with further negligible revalorization. Various investigations have demonstrated that agricultural byproducts have promising capacities to remove a variety of pollutants, which might increase the sustainability of their life cycle. This paper investigates the possible use of lignocellulosic waste material (LCW), originating from food industry as biosorbent for heavy metals, and later as a solid fuel. For this purpose we have used peach stone particles (PS) obtained by mechanical activation of this LCW as Cu(II) sorbent. The physical and chemical characteristics of PS reveal its complex structure which was confirmed by SEM, and FTIR analysis. PS behavior on pyrolysis process was studied by dynamic thermo gravimetric and derivate thermo gravimetric analysis. Results show that this lignocellulosic waste can be applied as sorbent and as a fuel. This approve that this agricultural waste can be a resource more than a waste and that it does not need to be disposed of in the costly and inefficient way, which is especially important in developing economies, like Serbian.

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Application of raw peach shell particles for removal of methylene blue

Cited by 87 publications

References 36 publications

Interpretations about methylene blue adsorption by surface modified chitin using the statistical physics treatment

Interpretations about methylene blue adsorption by surface modified chitin using the statistical physics treatment

Utilization of nano-olive stones in environmental remediation of methylene blue from water

Lignocellulosic Waste Material – From Landfill to Sorbent and Fuel

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