title: Hydrothermal treatment of electric arc furnace dust.
abstract: 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.
authors.affiliation: Institute of Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan, ROC.
authors.forename: Bing-Sheng
authors.initials: BS
authors.lastname: Yu
authors.forename: Yuh-Ruey
authors.initials: YR
authors.lastname: Wang
authors.forename: Tien-Chin
authors.initials: TC
authors.lastname: Chang
mesh_terms: D003460:Crystallization; D004391:Dust; D004560:Electricity; D008669:Metallurgy; D013696:Temperature; D015034:Zinc Oxide / Q000138:chemical synthesis*
chemical_list: D004391:Dust; D015034:Zinc Oxide