Green and efficient synthesis of mesoporous sodalite assisted by persulfate or peroxymonosulfate

Chen, Yi; Dong, Shuai; Wei, Shiyue; Zhang, Shiruo; Zhang, Jiaxin; Gu, Jinchuan

doi:10.1016/j.micromeso.2022.112321

Cited by 5 publications

(1 citation statement)

References 43 publications

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“…Furthermore, the appearance of a peak at 551 cm −1 indicates the characteristic vibration of double-four-ring (D4R) structures [36], indicating the presence of such structures within the LTA-type molecular sieves. Additionally, the O-H vibration peaks around 3440 cm −1 and 1645 cm −1 after adsorption are significantly enhanced and have a certain shift, which is due to the hydroxyl complexation of Cu 2+ during adsorption [37]. Hence, when the molecular sieve is exposed to the Cu 2+ -containing adsorption solution, a portion of the Cu 2+ permeates the molecular sieve pores, undergoing physical adsorption, while the remaining fraction undergoes chemical adsorption.…”

Section: Adsorption Kinetics Simulationmentioning

confidence: 99%

Study on the Synthesis of LTA-Type Molecular Sieves from Coal Gangue and Aluminum Ash and Its Adsorption Properties towards Cu2+

Wang,

Xu,

Cai

et al. 2024

Crystals

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Coal gangue and aluminum ash emerge as quintessential constituents within the ambit of coal-derived solid waste and industrial residue, respectively. Leveraging coal gangue as a primary substrate and aluminum ash as an adjunct aluminum source, molecular sieves can be synthesized through hydrothermal means. By modulating the dosage of aluminum ash, molecular sieves with varying crystalline structures can be obtained. The synthesized LTA-type molecular sieves manifest in two distinct morphologies: regular tetrahedral and stratified spherical stacking, evincing commendable Cu2+ adsorption efficacy. The Cu2+ adsorption phenomenon predominantly transpires via chemisorption, albeit with ancillary manifestations of physical adsorption. The valorization of coal gangue and aluminum ash towards the synthesis of molecular sieves not only underscores the elevation of industrial solid waste towards high-value utility, but also underscores the praxis of waste remediation through upcycling.

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Section: Adsorption Kinetics Simulationmentioning

confidence: 99%