Efficient adsorption of methylene blue by mesoporous silica prepared using sol-gel method employing hydroxyethyl cellulose as a template

Lyu, Renliang; Cheng, Zhang; Xia, Ting; Chen, Sufang; Wang, Ze; Luo, Xiaogang; Wang, Lichun; Wang, Yi; Yu, Jiahui; Wang, Cunwen

doi:10.1016/j.colsurfa.2020.125425

Cited by 27 publications

(8 citation statements)

References 47 publications

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“…The results of XRD analysis of the silica gel sample are shown in Figure 9a. There was a significant diffused peak in the XRD spectrum, which was attributed to the amorphous SiO 2 peak cluster, 30,31 indicating that the prepared silica gel sample consisted of amorphous SiO 2 . The silica gel had an amorphous structure.…”

Section: Resultsmentioning

confidence: 99%

Insights into Coproduction of Silica Gel via Desulfurization of Steel Slag and Silica Gel Adsorption Performance

Liao

Pan

et al. 2022

ACS Omega

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Steel slag is a calcium-containing alkaline industrial solid waste that can replace limestone for flue gas desulfurization. It can remove SO 2 and coproduce silica gel while avoiding CO 2 emission from limestone in the desulfurization process. In this study, steel slag with a D 50 of 3.15 μm was used to remove SO 2 . At room temperature, with a solid–liquid ratio of 1:10, a stirring speed of 800 rpm, and the mixed gas introduced at a flow rate of 0.8 mL/min, 1 ton of steel slag could remove 406.7 kg of SO 2 , a SO 2 removal efficiency typical of existing calcium-rich desulfurizers. As limestone desulfurization can release CO 2 , when limestone desulfurization was replaced with steel slag of equal desulfurization ratio, CO 2 emissions could be reduced by 279.6 kg and limestone could be reduced by 635.5 kg. The yield of silica gel was 5.1%. Silica gel pore structure parameters were close to those of commercially available B silica gel. Products after desulfurization were mainly CaSO 4 · 2H 2 O, CaSO 4 · 0.5H 2 O, CaSO 3 · 0.5H 2 O, and silica gel. With a silica gel dosage of 30 mg, a temperature of 20 °C, a pH value of 6.00, a stirring time of 0.5 h, and a methylene blue concentration of 0.020 mg/mL, the removal ratio of methylene blue adsorbed by silica gel was 98.4%.

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Section: Resultsmentioning

confidence: 99%

Insights into Coproduction of Silica Gel via Desulfurization of Steel Slag and Silica Gel Adsorption Performance

Liao

Pan

et al. 2022

ACS Omega

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“…In this paper, a novel mesoporous silica with a worm-like channel (denoted as HECMS) of abundant specific surface area and high pore capacity was synthesized using the sol-gel method as in our previous work. 42 The preparation cost has been greatly reduced by employing hydroxyethyl cellulose (HEC) as a template and sodium silicate nonahydrate as the silica source. Then amino functional groups were introduced in materials for their potential binding sites for glyphosate.…”

Section: Introductionmentioning

confidence: 99%

Treatment of glyphosate wastewater by Zr-amino bi-functionalized worm-like mesoporous silica absorbents

Xia

et al. 2023

New J. Chem.

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“…Due to its relevance and wide range of applications, MB, a member of the thiazine dye class, is chosen as the targeted dye for this investigation [5]. To date, various technologies such as membrane filtration, flocculation, chemical oxidation, ozonation, ion exchange, irradiation, and adsorption has been explored [6]. However, most of these methods have disadvantages such as lack of reusability which may hinder their widespread usage for large scale operations [7].…”

Section: Introductionmentioning

confidence: 99%

Surface Characteristics of Electrospun p-Sulphonated Calix[4]Arene Functionalized Cellulose Acetate Nanofiber and Its Behaviour towards Methylene Blue Adsorption

Basri

Wahid

Zainal

et al. 2022

Adsorption Science & Technology

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p-sulphonated calix[4]arene (p-SOCX) functionalized cellulose acetate/graphene oxide (CA/GO) nanofibers were successfully prepared via the electrospinning technique. The presence of p-SOCX within the fiber matrix was ascertained using Fourier Transform Infrared spectroscopy and Carbon-Hydrogen-Nitrogen-Sulphur elemental analyses. Apparent changes in morphology of the samples were observed under scanning electron microscope where fiber diameters increased with increasing p-SOCX content. Preliminary dye removal test at different pH, dosage, and temperature of functionalized CA/GO nanofiber demonstrates enhanced adsorption capacity of methylene blue in presence of p-SOCX compared to pristine CA nanofiber and CA/GO nanofiber at an optimum pH 8. The highest removal efficiency obtained was 88.84% with initial methylene blue dye concentration of 10 mg/L, adsorbent dosage of 20 mg/10 mL, contact time of 30 min at room temperature ca. 293 K.

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Efficient adsorption of methylene blue by mesoporous silica prepared using sol-gel method employing hydroxyethyl cellulose as a template

Cited by 27 publications

References 47 publications

Insights into Coproduction of Silica Gel via Desulfurization of Steel Slag and Silica Gel Adsorption Performance

Insights into Coproduction of Silica Gel via Desulfurization of Steel Slag and Silica Gel Adsorption Performance

Treatment of glyphosate wastewater by Zr-amino bi-functionalized worm-like mesoporous silica absorbents

Surface Characteristics of Electrospun p-Sulphonated Calix[4]Arene Functionalized Cellulose Acetate Nanofiber and Its Behaviour towards Methylene Blue Adsorption

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