In this study, the effect of different batch mixture of Photo-voltaic wasted glass (PV-WG) and wasted Calcium carbide (WCC) was studied. PV-WG supplied Ca and Si, while WCC provided Ca in its chemical components. The batch-mixed sample with different Ca/Si molar ratios of 0.8; 1.0 and 1.2 followed by hydrothermal treatment at 180°C for 96 hours. The data indicate that at Ca/Si 0.8, the formation of biphasic xonotlite Ca 6 Si 6 O 17 (OH) 2 (PDF#23-0125) and Riversideite-9A Ca 5 Si 6 O 16 (OH) 2 (PDF#29-0329) was obtained. In contrast when increase the Ca/Si molar ratio of 1.0 or 1.2, the formation of Xonotlite is the main phase. The Xonotlite obtained has crystal size of 0.5∼1µm, and potential used in heavy metal removal or thermal insulator in heat industry.
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Quan et al. (2024) studied this question.
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