Making Marble Powder Waste Profitable by Using Nano-TiO₂ Surface Modification for Air Quality Improvement Applications

Table 1

Elements and their content detected in the marble powder.

Element	Weight%	Atomic%
C	8.82	18.32
O	34.86	54.34
Ca	40.78	25.37
Au	15.54	1.97
Totals	100.00