Synthesis and environmental applications of aluminum-containing MCM-41 type material from industrial waste containing silicon and aluminum.

• MCM-41 was prepared from liquid crystal display waste glass and chemical mechanical polishing sludge via hydrothermal treatment. • Effect of different temperatures and liquid–solid ratio on the microstructure humidity control performance of MCM-41 were studied. • The environmental humidity control and high performance of the materials were observed. • The effective synthesis of mesoporous materials from photovoltaic industry waste was developed. In this work, aluminum-containing MCM-41 mesoporous materials (ACMCM-41) were successfully prepared from liquid crystal display (LCD) waste glass and chemical mechanical polishing (CMP) sludge by a novel route for the reused of industrial waste. It can be inferred from the increase in the surface area, the introduction of an appropriate amount of aluminum retained the ordered mesoporous structure of the ACMCM-41 during the hydrothermal treatment process. Larger pore volume and specific surface area, as well as a great deal of mesopores distributed in the range of 3–20 nm can greatly contribute to the improvement of humidity control performance. ACMCM-41 was tested for its average equilibrium moisture content under different relative humidity of the material under water vapor adsorption/desorption. ACMCM-41 showed excellent humidity control performance (61.18 m3/ m3). The possibility of synthesis zeolite from the residual solid after aged was also discussed. The residual solids can be reused as suitable raw material for the synthesis of zeolite. [ABSTRACT FROM AUTHOR]