Efficient removal of methylene blue from aqueous solutions using magnetic graphene oxide modified zeolite

Huang, Tiantian; Yan, Ming; He, Kai; Huang, Zhenzhen; Zeng, Guangming; Chen, Anwei; Peng, Min; Li, Hui; Yuan, Lei; Chen, Guiqiu

doi:10.1016/j.jcis.2019.02.030

Cited by 159 publications

(42 citation statements)

References 63 publications

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“…Significantly, the relatively high temperature could improve the adsorption capacity of MB (Figure 6c). This might have been due to the enhanced interaction between the active sites with MB molecules when the temperature increased [63]. Commonly, the thermodynamic parameters, including standard Gibbs energy change (∆G • , kJ•mol −1 ), standard enthalpy change (∆H • , kJ•mol −1 ), and standard entropy change (∆S • , J•K −1 •mol −1 ), were calculated from the following equations [63]:…”

Section: Adsorption Thermodynamicsmentioning

confidence: 99%

Transformation of Glass Fiber Waste into Mesoporous Zeolite-Like Nanomaterials with Efficient Adsorption of Methylene Blue

Tsai

Horng

2021

Sustainability

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Recycling and reusing glass fiber waste (GFW) has become an environmental concern, as the means of disposal are becoming limited as GFW production increases. Therefore, this study developed a novel, cost-effective method to turn GFW into a mesoporous zeolite-like nanomaterial (MZN) that could serve as an environmentally benign adsorbent and efficient remover of methylene blue (MB) from solutions. Using the Taguchi optimizing approach to hydrothermal alkaline activation, we produced analcime with interconnected nanopores of about 11.7 nm. This MZN had a surface area of 166 m2 g−1 and was negatively charged with functional groups that could adsorb MB ranging from pH 2 to 10 and all with excellent capacity at pH 6.0 of the maximum Langmuir adsorption capacity of 132 mg g−1. Moreover, the MZN adsorbed MB exothermically, and the reaction is reversible according to its thermodynamic parameters. In sum, this study indicated that MZN recycled from glass fiber waste is a novel, environmentally friendly means to adsorb cation methylene blue (MB), thus opening a gateway to the design and fabrication of ceramic-zeolite and tourmaline-ceramic balls and ceramic ring-filter media products. In addition, it has environmental applications such as removing cation dyes and trace metal ions from aqueous solutions and recycling water.

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Section: Adsorption Thermodynamicsmentioning

confidence: 99%

Transformation of Glass Fiber Waste into Mesoporous Zeolite-Like Nanomaterials with Efficient Adsorption of Methylene Blue

Tsai

Horng

2021

Sustainability

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“…The Langmuir constant k L (L g −1 ) and q max (mg g −1 ) can obtain from the intercept and the slope of straight lines between c e / q e and c e [Figure (a)] and shown in Table . It shows that the q max (862.07 mg g −1 ) is higher than other adsorbents . A comparison of the adsorption capacities MB onto various adsorbents is shown in Table .…”

Section: Resultsmentioning

confidence: 91%

Synthesis of citric acid modified β‐cyclodextrin/activated carbon hybrid composite and their adsorption properties toward methylene blue

Tang

Zhang

et al. 2019

J of Applied Polymer Sci

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In this article, citric acid modified β‐cyclodextrin/activated carbon hybrid (CA‐β‐CD/AC) composites were synthesized by crosslinking reaction, and their adsorption properties for methylene blue were studied. The scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and Brunauer–Emmett–Teller (BET) method were used to characterize the structure and the morphology of composite materials. It was investigated that the effect of experiment parameters on the adsorption performance including weight fraction of AC in the composite, the adsorbent dose, the initial concentration of MB, the solution pH value, contact time, and temperature. The maximum adsorption capacity calculated by the Langmuir isotherm is 862.07 mg g−1. Kinetic studies show that the adsorption process follows the pseudo‐first‐order and pseud‐second‐order reaction models. Thermodynamic analysis indicated that the adsorption behavior was an exothermic reaction. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48315.

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“…3c and the peaks observed at 602, 660, and 1015 cm −1 in the FTIR spectra of GOFeZB given in Fig. 3d are characteristic peaks related to the stretching vibration of the T-O bands resulting from the TO 4 (T is Al or Si) structure of the clinoptilolite (Huang et al 2019;Khatamian et al 2017). Furthermore, the peaks of GO showing groups such as O-H, C=O, and aromatic C=C are also detected in the FTIR spectrum of composites at around 3341, 1718, and 1620 cm −1 , respectively.…”

Section: Characterizationmentioning

confidence: 88%

Removal of arsenate using graphene oxide-iron modified clinoptilolite-based composites: adsorption kinetic and column study

Baskan

Hadimlioglu²

2021

J Anal Sci Technol

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In this study, graphene oxide (GO), iron modified clinoptilolite (FeZ), and composites of GO-FeZ (GOFeZA and GOFeZB) were synthesized and characterized using SEM, EDS, XRF, FTIR, and pHpzc. The arsenate uptake on composites of GOFeZA and GOFeZB was examined by both kinetic and column studies. The adsorption capacity increases with the increase of the initial arsenate concentration at equilibrium for both composites. At the initial arsenate concentration of 450 μg/L, the arsenate adsorption on GOFeZA and GOFeZB was 557.86 and 554.64 μg/g, respectively. Arsenate adsorption on both composites showed good compatibility with the pseudo second order kinetic model. The adsorption process was explained by the surface complexation or ion exchange and electrostatic attraction between GOFeZA or GOFeZB and arsenate ions in the aqueous solution due to the relatively low equilibrium time and fairly rapid adsorption of arsenate at the beginning of the process. The adsorption mechanism was confirmed by characterization studies performed after arsenate was loaded onto the composites. The fixed-bed column experiments showed that the increasing the flow rate of the arsenate solution through the column resulted in a decrease in empty bed contact time, breakthrough time, and volume of treated water. As a result of the continuous operation column study with regenerated GOFeZA, it was demonstrated that the regenerated GOFeZA has lower breakthrough time and volume of treated water compared to fresh GOFeZA.

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Efficient removal of methylene blue from aqueous solutions using magnetic graphene oxide modified zeolite

Cited by 159 publications

References 63 publications

Transformation of Glass Fiber Waste into Mesoporous Zeolite-Like Nanomaterials with Efficient Adsorption of Methylene Blue

Transformation of Glass Fiber Waste into Mesoporous Zeolite-Like Nanomaterials with Efficient Adsorption of Methylene Blue

Synthesis of citric acid modified β‐cyclodextrin/activated carbon hybrid composite and their adsorption properties toward methylene blue

Removal of arsenate using graphene oxide-iron modified clinoptilolite-based composites: adsorption kinetic and column study

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