Oter Ozlem, Akcay Husamettin
Department of Chemistry, Dokuz Eylül University, 35160, Tinaztepe, Izmir, Turkey.
Water Environ Res. 2007 Mar;79(3):329-35. doi: 10.2175/106143006x111880.
Natural clinoptilolite can be used as an ion exchanger for removal of heavy metals and treatment of environmental pollution because of its desirable characteristics of high ion exchange selectivity and resistance to different media. In this work, the potential of natural clinoptilolite from Gördes mines (West Anatolia, Turkey) for the uptake of lead(II), nickel(II), copper(II), and zinc(II), from their single and mixed ion solutions, was evaluated using the batch method. The mineralogical and chemical properties of the sorption material were carried out by X-ray diffraction, X-ray fluoremetry, scanning electron microscopy, and wet analysis. Contact time, initial solution pH, solid-to-liquid ratio, and initial metal cation concentration were determined as single ion sorption parameters. The silicon/aluminum ratio and the theoretical and equivalent exchange capacities, both in single and mixed solutions, were established. Corresponding adsorption constants and distribution coefficients have been found.
天然斜发沸石因其具有高离子交换选择性和耐不同介质的理想特性，可作为离子交换剂用于去除重金属和处理环境污染。在本研究中，采用分批法评估了来自土耳其安纳托利亚西部戈尔代斯矿的天然斜发沸石从单一离子溶液和混合离子溶液中吸附铅（II）、镍（II）、铜（II）和锌（II）的潜力。通过X射线衍射、X射线荧光分析、扫描电子显微镜和湿法分析对吸附材料的矿物学和化学性质进行了研究。确定了接触时间、初始溶液pH值、固液比和初始金属阳离子浓度作为单一离子吸附参数。测定了单一溶液和混合溶液中的硅/铝比以及理论和等效交换容量。还发现了相应的吸附常数和分配系数。
