Simultaneous adsorption of quinoline and dibenzothiophene over Ni-based mesoporous materials at different Si/Al ratio

Alvarado-Perea, L.; Colín-Luna, J.A.; López-Gaona, A.; Wolff, Tanya; Pacheco-Sosa, J. Gpe; García-Martínez, J.C.

doi:10.1016/j.cattod.2019.11.025

Cited by 9 publications

(6 citation statements)

References 52 publications

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“…Another study [18] also reported that the Si/Al ratio significantly affects the adsorption performance of the adsorbent. For instance, Alvarado-Perea et al [19] reported that materials with higher Si/Al ratio exhibit higher specific surface area and better adsorption capacity. Therefore, additional materials (with high Si content) are necessary to adjust the composition of raw materials in order to obtain ceramsite with high adsorption performance.…”

Section: Introductionmentioning

confidence: 99%

Co-Utilization of Sewage Sludge and Rice Husk in Ceramsite Preparation with Selective Adsorption Capacity to Pb

Wang

2022

Materials

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Realizing the green recycling of sludge is an important link to effectively solve the problem of sludge disposal. In this paper, sewage sludge (SS) and rice husk (RH) were utilized as raw materials in preparing novel ceramsite (SRC) for the treatment of lead-containing wastewater, and its adsorption mechanism was explored. The results showed that the optimal preparation conditions were 40% RH + 60% SS mixture, a sintering temperature of 1190 °C, and a sintering time of 20 min. The basic properties of SRC met Chinese artificial ceramsite filter material standards for water treatment (CJ/T 299-2008). Under optimum adsorption conditions (pH = 6, 1 g/L SRC dosage, 20 mg/L Pb(NO)3 concentration, 18 h), the removal rate of Pb2+ reached 94.7%, and the equilibrium adsorption capacity was 18.94 mg/g. The adsorption process was more consistent with the pseudo-second-order kinetic model and the Langmuir isotherm model, indicating that the adsorption process was dominated by chemisorption. Thermodynamic parameters (ΔH0 > 0, ΔG0 < 0, ΔS0 > 0) indicated that the adsorption reaction was spontaneous and endothermic. The possible adsorption mechanisms are as follows: (1) SRC is rich in layered mesoporous structure, which provides sufficient reaction sites for Pb adsorption; (2) the sintered lawsonite and muscovite can strongly attract Pb and then form a new phase (Pb10[Si2O7]3(OH)2); (3) Pb2+ can bond with the Si–O- bond in aluminosilicates, and the introduction of Pb elevates the degree of polymerization of aluminosilicates in turn, indicating that the adsorption process is stable.

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Section: Introductionmentioning

confidence: 99%

Co-Utilization of Sewage Sludge and Rice Husk in Ceramsite Preparation with Selective Adsorption Capacity to Pb

Wang

2022

Materials

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“…For the mesoporous zeolite, Alvarado-Perea and co-workers investigated the effect of Si/Al ratio on the simultaneous adsorption of quinoline and dibenzothiophene over MCM-41. 24 They found that the Si/Al ratio can influence the surface of the adsorbent, and the highest removal of quinoline was at a high Si/Al ratio. Additionally, Garcia and Lercher used ZSM5 zeolite as the adsorbent for thiophene adsorption.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Therefore, it has been widely used in adsorption and catalysis. For the mesoporous zeolite, Alvarado-Perea and co-workers investigated the effect of Si/Al ratio on the simultaneous adsorption of quinoline and dibenzothiophene over MCM-41 . They found that the Si/Al ratio can influence the surface of the adsorbent, and the highest removal of quinoline was at a high Si/Al ratio.…”

Section: Introductionmentioning

confidence: 99%

Effective Adsorptive Denitrogenation from Model Fuels over CeY Zeolite

Zhang

Huang

Lin

et al. 2022

Ind. Eng. Chem. Res.

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Nitrogen-containing compounds (NCCs) in hightemperature coal tar have a negative impact on its utilization. This work aimed to prepare a series of Ce x Y adsorbents with superior capacity and selectivity by ion exchange, and further clarify the regeneration properties and adsorption mechanism. The adsorptive denitrogenation properties were evaluated at different temperatures using batch adsorption experiments in different model fuels. The implication of Ce loading on the adsorption properties has been studied. The results show that Ce 0.2 Y exhibits a remarkable performance in adsorption capacity. Ce 0.2 Y can reach 25.32 mg•N• g −1 absorption for quinoline and 23.78 mg•N•g −1 absorption for indole at 30 °C, which is much better than that of NaY. The effect of naphthalene on the adsorption of NCCs indicated that Ce 0.2 Y is much resistant to the influence of naphthalene. Furthermore, the regenerated adsorbents still retained better adsorption properties than NaY after five cycles. The adsorption mechanism for NCCs and naphthalene on Ce 0.2 Y was revealed by the IR spectra. By contrast, the interaction between Ce 0.2 Y and NCCs is stronger than the interaction between Ce 0.2 Y and naphthalene. The Ce 0.2 Y adsorbent preferentially adsorbed NCCs, which can be attributed to the introduction of Ce 4+ .

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“…The preparation of an efficient, cheap, simple and reusable adsorbent has become the focus and difficulty in the research of ADS industry [9]. Among them, the most commonly used adsorbents are carbon materials, molecular sieve, metal-organic frameworks materials [10][11][12][13]. With the development of membrane separation https://doi.org/10.37358/RC.22.1.8504 technology, a new separation method combining membrane separation technology with adsorption separation has attracted wide attention in the industry.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Dibenzothiophene in Gasoline by Si-MCM-41/Sodium Alginate Porous Hybrid Membrane

Lin¹,

Sun²,

Chen³

et al. 2022

Rev. Chim.

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In this paper, the novel Si-MCM-41/SA porous hybrid membrane was prepared by in-corporating inorganic mesoporous material Si-MCM-41 into sodium alginate (SA) matrix, then cross-linking with 5% glutaraldehyde and 1.0 mol/L hydrochloric acid. Using scanning electron microscope (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and atomic force microscope (AFM), the prepared Si-MCM-41 sample and Si-MCM-41/SA porous hybrid membrane were characterized. The adsorption kinetics of the dibenzothiophene (DBT) by the Si-MCM-41/SA porous hybrid membrane was explored. Meanwhile, the effects of Si-MCM-41 content, porogen addition amount, DBT concentration, solution temperature, toluene concentration and other factors on the adsorption property of the Si-MCM-41/SA porous hybrid membrane were studied. In addition, the selectivity and reusability of the Si-MCM-41/SA porous hybrid membrane were also explored. The results show that the Si-MCM-41/SA porous hybrid membrane has excellent adsorption capacity for DBT, reaching 350.74 mg/g, which is a great improvement over the pure SA membrane. Moreover, among three sulfides of thiophene, 3-methylthiophene and DBT, the Si-MCM-41/SA porous hybrid membrane has the highest adsorption selectivity for DBT. The Si-MCM-41/SA porous hybrid membrane can be reused at least 5 times. Therefore, it can be known that the Si-MCM-41/SA porous hybrid membrane is an ideal adsorption material with practical application prospects.

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Simultaneous adsorption of quinoline and dibenzothiophene over Ni-based mesoporous materials at different Si/Al ratio

Cited by 9 publications

References 52 publications

Co-Utilization of Sewage Sludge and Rice Husk in Ceramsite Preparation with Selective Adsorption Capacity to Pb

Co-Utilization of Sewage Sludge and Rice Husk in Ceramsite Preparation with Selective Adsorption Capacity to Pb

Effective Adsorptive Denitrogenation from Model Fuels over CeY Zeolite

Adsorption of Dibenzothiophene in Gasoline by Si-MCM-41/Sodium Alginate Porous Hybrid Membrane

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