Department of Inorganic and Analytical Chemistry, Rzeszów University of Technology, Rzeszów, Poland.
Waste Manag Res. 2020 May;38(5):567-575. doi: 10.1177/0734242X20904425. Epub 2020 Feb 22.
It was found that the chemical enhancement of fly ash from coal combustion by tetrabutylammonium bromide treatment yields an effective and economically feasible material for the treatment of chromium and basic dye Rhodamine B containing effluents. Characterisation of coal fly ash and treatment with tetrabutylammonium bromide were done by using a Fourier transform infrared spectroscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, confocal three-dimensional microscope, X-ray diffraction and laser particle sizer. The studies of equilibrium in a bi-component system by means of extended Langmuir, extended Langmuir-Freundlich and Jain-Snoeyink models were analysed. The estimation of parameters of sorption isotherms in a bi-component system metal-dye has shown that the best-of-fit calculated values of experimental data for both sorbates have been the Jain-Snoeyink model and the extended Langmuir model, but only in the case of a Rhodamine B. The maximum monolayer adsorption capacity of the fly ash-tetrabutylammonium bromide was found to be 863 mg g and 670 mg g for chromium and Rhodamine B, respectively.
研究发现，用四丁基溴化铵处理煤燃烧产生的粉煤灰，可得到一种有效且经济可行的材料，用于处理含铬和碱性染料罗丹明 B 的废水。采用傅里叶变换红外光谱、扫描电子显微镜、能谱、共聚焦三维显微镜、X 射线衍射和激光粒度仪对粉煤灰和四丁基溴化铵的处理进行了表征。通过扩展朗缪尔、扩展朗缪尔-弗伦德利希和贾恩-斯诺因克模型对二元体系中的平衡进行了研究。对二元体系金属染料吸附等温线参数的估算表明，对于两种吸附质，最佳拟合值均为贾恩-斯诺因克模型和扩展朗缪尔模型，但仅在罗丹明 B 的情况下如此。粉煤灰-四丁基溴化铵的最大单层吸附容量分别为 863mg/g 和 670mg/g，用于吸附铬和罗丹明 B。
