Institute of Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan, ROC.
J Hazard Mater. 2011 Jun 15;190(1-3):397-402. doi: 10.1016/j.jhazmat.2011.03.056. Epub 2011 Mar 23.
In this study, ZnO crystals were fabricated from electric arc furnace dust (EAFD) after alkaline leaching, purification and hydrothermal treatment. The effects of temperature, duration, pH, and solid/liquid ratio on ZnO crystal morphology and size were investigated. Results show a high reaction temperature capable of accelerating the dissolution of ZnO precursor, expediting the growth of 1D ZnO, and increasing the L/D ratio in the temperature range of 100-200°C. ZnO crystals with high purity can also be obtained, using the one-step hydrothermal treatment with a baffle that depends on the different solubility of zincite and franklinite in the hydrothermal conditions.
在这项研究中，通过碱性浸出、提纯和水热处理，从电弧炉粉尘（EAFD）中制备了 ZnO 晶体。考察了温度、时间、pH 值和固液比对 ZnO 晶体形貌和尺寸的影响。结果表明，高温能加速 ZnO 前驱体的溶解，促进 1D ZnO 的生长，并在 100-200°C 的温度范围内增加 L/D 比。通过使用挡板的一步水热处理，也可以获得具有高纯度的 ZnO 晶体，这取决于锌尖晶石和黑锌锰矿在水热条件下的不同溶解度。
