Sandpaper Wastes as Adsorbent for the Removal of Brilliant Green and Malachite Green Dye

Coşkun, Yasemin; Aksuner, Nur; Yanık, Jale

doi:10.17344/acsi.2018.4881

Cited by 23 publications

(12 citation statements)

References 45 publications

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“…[ 10 ] In addition, novel mulberry silkworm cocoons could be used for synthesizing CD and this material has anti‐inflammatory properties. [ 11 ] CD have played a huge role in environmental monitoring, such as electrochemical detection of bisphenol, [ 12 ] removal of brilliant green and malachite green dye, [ 13 ] and water detection. [ 14 ] There are also medical applications, such as targeted therapy of liver cancer, [ 15 ] cancer gene therapy, [ 16 ] and against invasive fungal infections.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of blue fluorescent carbon dots and their application in detecting mercury and iodine based on “off–on” mode

et al. 2021

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In this study, a type of blue‐emission fluorescent carbon dot was synthesized using malic acid, urea, and water. This material demonstrates strong stability to heat, ionic strength, and time. It was found that mercury ions can quench the blue fluorescence of the material, and using iodine ions, the fluorescence can be recovered. Hence, we designed an “off–on” mode to detect mercury and iodine ions using the carbon dots. The results showed that this material exhibits good selectivity and recovery rate. Concurrently, imaging experiments showed that this material demonstrates low cytotoxicity and can be used in cell fluorescence imaging. The study concludes that this material has wider application prospects in the future.

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Section: Introductionmentioning

confidence: 99%

Synthesis of blue fluorescent carbon dots and their application in detecting mercury and iodine based on “off–on” mode

et al. 2021

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“…The Langmuir model suits Cd and Pb adsorption on AWSB better than Freundlich and Temkin model at temperatures of 298, 310, and 322 K (Figure 4A-C and Figures S4-S9). The adsorption behavior of AWSB fitted well with the Langmuir model suggests a monolayer adsorption process rather than heterogeneous coverage on homogenous sites [43]. For Cd and Pb adsorption, the Langmuir maximum monolayer adsorption capacity (Q m ) value is 9.3 and 0.6 mg/g at 298 K, respectively.…”

Section: Adsorption Isothermsmentioning

confidence: 65%

Remediation of Emerging Heavy Metals from Water Using Natural Adsorbent: Adsorption Performance and Mechanistic Insights

et al. 2021

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The presence of potentially toxic metals in water causes a strong impact on environment and human health. In this study, activated biochar was produced by using chemical oxidation method from wheat straw as natural adsorbent and was employed for heavy metals competitive remediation. The morphology, structure, and chemical properties of biochar before and after adsorption were characterized by FTIR, XRD, SEM and EDX mapping techniques. The competitive adsorption efficiency of adsorbent for divalent cadmium (Cd) and lead (Pb) from contaminated water was investigated by using wide range of several initial metal concentration, contact time and pH. Maximum adsorption of Cd(II) and Pb(II) was found in the pH range of 6–8. The adsorption capacity for Cd(II) and Pb(II) was 8.85 and 9.03 mg/g, respectively. Thermodynamics parameters and kinetic models were applied to adsorption data. The isotherm data followed Langmuir model, corresponding to monolayer adsorption of the two ions in the contaminated water. The kinetic data followed the pseudo 2nd order kinetics model, which authenticates the chemisorption nature. The thermodynamic study indicated that Cd adsorption is a spontaneous exothermic process while Pb adsorption is an endothermic process. Mineral precipitation, surface complexation, and cation-π interactions are the major remediation strategies for Cd(II) and Pb(II).

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“…The second part of the slope describes the final equilibrium stage when the intraparticle diffusion (stage II) starts to be lower and level out as the extremely low dye concentration remains in solution or maximum sorption uptake is obtained. Generally, the q versus t 1/2 plot presents a multilinearity, this indicates that both, external mass transfer and intraparticle diffusion have been involved in different phases of the sorption process [41][42][43].…”

Section: Intraparticle Diffusionmentioning

confidence: 95%

Sorption of Organic Pollutants onto Soils: Surface Diffusion Mechanism of Congo Red Azo Dye

et al. 2020

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For the protection of human and ecological receptors from the effects of soil pollution with chemical compounds, we need to know the behavior and transport of pollutants in soil. This work investigated the Congo red (CR) acid dye sorption on three natural soils collected from central and northeastern regions of Romania, symbolized as IS-65, IS-T, and MH-13. To define the mechanism of sorption and identify the rate governing step, various diffusion models such as Weber–Morris intraparticle diffusion, Boyd, film and pores diffusion, and mass transfer analysis have been verified. The intraparticle diffusion analysis of Congo red sorption onto soils has been described by a multi-linear plots, showing that the sorption process takes place by surface sorption and intraparticle diffusion in macro, meso, and micropores. The values of intraparticle diffusion coefficient kid increased with any rise of the initial concentration of pollutant. The results show that the values of pore diffusion coefficient (Dp) and film diffusion coefficient (Df) are found to be from 10−8 to 10−10 cm2 s−1, indicating that film diffusion influences the sorption rate limiting step. The intraparticle diffusion analysis shows that the plots did not pass through the origin and have two distinct parts, confirming that intraparticle diffusion is not the single determining mechanism involved in the sorption of Congo red on soils IS-65, IS-T, and MH-13. The results revealed that the sorption process has a complex nature, since both external diffusion and internal diffusion are involved in the sorption of CR from solution onto the investigated soils.

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Sandpaper Wastes as Adsorbent for the Removal of Brilliant Green and Malachite Green Dye

Cited by 23 publications

References 45 publications

Synthesis of blue fluorescent carbon dots and their application in detecting mercury and iodine based on “off–on” mode

Synthesis of blue fluorescent carbon dots and their application in detecting mercury and iodine based on “off–on” mode

Remediation of Emerging Heavy Metals from Water Using Natural Adsorbent: Adsorption Performance and Mechanistic Insights

Sorption of Organic Pollutants onto Soils: Surface Diffusion Mechanism of Congo Red Azo Dye

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