排序方式: 共有74条查询结果,搜索用时 0 毫秒
71.
研究了废锌锰电池正负极电极材料在硫酸中的溶解情况。H2O2的加入会对溶解过程产生较大的影响,适宜的溶解条件为:硫酸浓度3mol/L,液固比为6,反应温度50℃,H2O2浓度2.5%(质量分数),反应时间20min. 相似文献
72.
Debasish Guha Thakurata Krishna Chandra Das Arijita Paul Siddhartha Sankar Dhar 《环境质量管理》2023,32(3):69-78
Toxic organic dyes released into aquatic sources as a result of industrial activities pose a significant threat to the environment. The removal of such dyes from water sources is a challenging task in the context of environmental emergencies. In this present effort, the strontium ferrite nanoparticles were synthesized by coprecipitation followed by a calcination method and is applied for photocatalytic degradation of such organic dyes. The ferrite nanoparticles were characterized by FTIR, XRD, VSM, SEM-EDX, TEM, and HR-TEM studies. In the existence of H2O2 under visible light, the catalyst performs efficient degradation of aniline blue (AB) and methyl violet (MV) dyes in a remarkably short interval of time. The superparamagnetic performance of the catalyst was confirmed by VSM, and thus it can be easily recovered from the degraded dye by applying an external magnet. The Fenton mechanism justifies the elevated rate of photo degradation, which generates hydroxyl and perhydroxyl radicals in the progress of the reaction. 相似文献
73.
74.
铁氧体工艺处理含重金属污水研究现状及展望 总被引:17,自引:1,他引:16
本文对近年来该工艺中铁氧体沉渣的生成机理和生成条件等方面的理论研究、工艺流程的发展及实际应用情况、铁氧体沉渣的综合利用等方面的发展现状加以综述。指出对铁氧体生成机制和沉渣的组成、结构和性能开展深入研究,将对铁氧体工艺处理含重金属污水应用起推动作用。 相似文献