Yawen Liu , Chengxu Liao , Lin Liu , Xiaping Zhu , Zhihui Chen , Dongxue Ren , Tianfeng Yang , Yonghua Sun
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引用次数: 0
摘要
本研究的重点是钒钛磁铁矿尾矿和石英砂整体复合材料的制备、表征和光催化性能。以罗丹明 B 为污染物模型，研究了所制备的复合材料对罗丹明 B 的光催化降解。结果表明，复合材料能有效降解罗丹明 B，在最佳条件下，20 分钟内降解率达到 98%。对降解机理的研究表明，溶解氧、超氧自由基和罗丹明 B 的敏化是罗丹明 B 光催化降解过程的关键。
Preparation of vanadium-titanium magnetite tailings/quartz sand monolithic composite and photocatalytic degradation of rhodamine B
This study focused on the preparation, characterization and photocatalytic performance of a monolithic composite made from vanadium-titanium magnetite tailings and quartz sand. Rhodamine B was used as a pollutant model and the photocatalytic degradation of rhodamine B by the prepared composites was investigated. The results indicated that the composite could effectively degraded Rhodamine B, achieving a degradation rate of 98 % within 20 min under optimal conditions. Investigations on the degradation mechanism revealed that dissolved oxygen, superoxide radicals, and the sensitization of Rhodamine B are crucial to the photocatalytic degradation process of Rhodamine B. These results suggest potential benefits for the comprehensive utilization of vanadium titanomagnetite tailings.
期刊介绍：
The purpose of the journal is to provide for the rapid publication of topical papers featuring the latest developments in the allied fields of mineral processing and extractive metallurgy. Its wide ranging coverage of research and practical (operating) topics includes physical separation methods, such as comminution, flotation concentration and dewatering, chemical methods such as bio-, hydro-, and electro-metallurgy, analytical techniques, process control, simulation and instrumentation, and mineralogical aspects of processing. Environmental issues, particularly those pertaining to sustainable development, will also be strongly covered.
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