Iron oxide activation of persulphate as measured by orange G degradation

This data set is a record of laboratory experiments performed to evaluate the effectiveness of persulphate activation by the three common iron oxides, magnetite, maghemite and haematite as measured by the degradation of a target environmental pollutant, orange G. Data presented in Excel spreadsheets showing the effect of the presence of persulphate, magnetite oxidation, iron oxide mineralogy, concentration of hydroxyl groups on haematite, size of particle, coating by co-existing silica and carbonate minerals. Also presented are data for dissolved iron as ferrous and ferric ion activation of persulphate, the degree of dissolution of iron oxides during persulphate activation and the influence of pH and phosphate buffering on iron oxide activation of persulphate. The characterisation of the iron oxide particles using N2 adsorption, colorimetry, magnetometry, xray diffraction and infrared spectroscopy are also presented.本数据集为实验室实验记录，旨在评估三种常见氧化铁——磁铁矿（magnetite）、磁赤铁矿（maghemite）、赤铁矿（haematite）——活化过硫酸盐的效果，以目标环境污染物橙G（orange G）的降解程度作为效果衡量指标。数据集以Excel电子表格形式呈现，涵盖过硫酸盐存在的影响、磁铁矿氧化状态、氧化铁矿物学特征、赤铁矿表面羟基基团浓度、颗粒尺寸、共存硅质与碳酸盐矿物的包覆作用等内容。此外还包含溶解态铁（以亚铁离子与铁离子形式）活化过硫酸盐的相关数据、过硫酸盐活化过程中氧化铁的溶出程度，以及pH与磷酸盐缓冲体系对氧化铁活化过硫酸盐的影响。同时还展示了采用氮气吸附（N₂ adsorption）、比色法、磁测法、X射线衍射（X-ray diffraction）与红外光谱法对氧化铁颗粒进行的表征结果。