Abstract
Acid leaching residue of coal gasification slag (ALR-CGS) is a by-product of the aluminum extraction process of CGS. Its amount increased with the industrialization of the CGS aluminum extraction process. Thanks to the high silica content of ALR-CGS, this research evaluated the synthesis of MCM-41 using this discarded material. Highly ordered MCM-41 with hexagonal shaped pore diameters of 2.91–3.65nm was synthesized using ALR-CGS following a non-hydrothermal sol–gel method. The synthesized sample had a BET specific surface area of 1347m2/g. ALR-CGS is a very competitive alternative silica source in the synthesis of MCM-41.
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