碳负载铁纳米材料的制备及吸附砷性能的研究

碳负载铁纳米材料的制备及吸附砷性能的研究(8600字)
摘  要：本论文利用水热法制备了碳负载铁纳米材料，并研究了材料制备温度、PH、As（Ⅴ）浓度和振荡时间对碳负载铁纳米材料吸收水中As（Ⅴ）的影响。结果表明，在170℃下制备的碳负载铁纳米材料对As（Ⅴ）吸附效果最佳；随着PH的增加，碳负载铁纳米材料对As（Ⅴ）吸附效率越来越差，最佳吸附PH为3；在一定范围内，随着As（Ⅴ）浓度增加，振荡时间的增加碳负载铁纳米材料对As（Ⅴ）吸附效果越来越好，最佳吸附浓度为20ppm，最佳吸附时间为120min。
关键词：碳负载铁纳米材料；As（Ⅴ）；吸附

CARBON LOADING WITH IRON PREPARATION AND  APPLICATION ON REMOVAL OF ARSENIC
Abstract:This paper use hydrothermal method for carbon loading with iron material, and made a  analysis of the influence of the material preparation temperature, PH, As (Ⅴ) concentration and oscillation time on effect of the absorption of arsenic from water by this material. The results show that, under the preparation temperature of 170℃ the As (Ⅴ) adsorption was in the best efficiency. Along with the increase of the PH, the adsorption efficiency of the As (Ⅴ) became more and more poor by carbon loading with iron material, the best PH was 3 . In a certain range, with increase in concentration of As (Ⅴ) and increase of oscillation time the efficiency on the removal of arsenic from water increased by the carbon loading with iron material, the first-rate of As (Ⅴ) concentration was 20ppm,the best oscillation time was 120minutes.