【摘要】 染料废水中的典型代表污染物-罗丹明B（RhB）具有色度大、累积性强以及处理难度复杂等问题。本研究采用辐照改性氮化碳（g-C₃N₄）/还原氧化石墨烯复合光催化剂（g-C₃N₄/rGO）降解RhB。通过考察催化剂用量、电子束辐照剂量及rGO负载量对光催化降解RhB的影响。在反应温度为30℃时,复合材料的吸附平衡时间为30 min,且在催化剂浓度为0.04 mg/mL时,180 min完全能将污染物降解。当rGO的比例在4%和辐照剂量在30 kGy时,复合材料表现出最好的吸附能力与光催化降解能力。更多还原

【Abstract】 Rhodamine B（RhB）, a typical pollutant in dye wastewater, has attracted much attention due to its high chromaticity. RhB was degraded by photocatalytic degradation of irradiated modified carbon nitride（g-C₃N₄） composite reduced graphene oxide（rGO）. Effects and mechanism of g-C₃N₄/rGO composite photocatalytic materials on RhB degradation were studied by photocatalytic degradation experiment. In the photocatalytic degradation experiment, the effects of catalyst dosage, electron beam irradiation dose, modified carbon nitride and rGO composite ratio on photocatalytic degradation were investigated. The results showed that the electron beam irradiation dose and the load ratio of rGO greatly affected the degradation performance of the composites. When the ratio of rGO was 4% and the irradiation dose was 30 kG, the composite showed the best adsorption capacity and photocatalytic degradation ability.更多还原