Effects of zero-valent metals together with quartz sand on ...
A planetary ball mill (QM-3SP2, Nanjing University Instrument, China) was used in all experiments. A stainless 80 mL vial was filled with stainless balls in diameter of between 5 mm and 10 mm, which serve as the milling medium.Zero-valent metal (Al, Zn, Fe) and quartz sand were individually added as reactive chemicals during ball milling of DP.
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