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改性粉煤灰漂珠作为一种新型光催化剂,不仅解决了传统光催化剂易失活、易凝聚的问题,而且具有较高的光催化性能,可处理难降解的高浓度废水。对改性粉煤灰漂珠光催化氧化的影响因素、提高催化氧化处理废水的途径、改性粉煤灰漂珠光催化剂负载方法进行了综述。提出今后研究重点应该为拓宽改性粉煤灰漂珠光催化剂可见光光谱响应、制备悬浮型和磁性改性粉煤灰漂珠光催化剂、结合催化剂本身吸附性能定量预测废水浓度、复杂废水体系下以及多种催化剂并存条件下光催化氧化效果。
As a new type of photocatalyst, modified fly ash floating bead not only solves the problem of easy deactivation and aggregation of traditional photocatalyst, but also has high photocatalytic performance and can handle highly-degradable wastewater with high concentration. The influencing factors of photocatalytic oxidation of modified fly ash floating beads, ways of improving catalytic oxidation wastewater treatment, and loading methods of modified fly ash floating pearl photocatalysts were reviewed. It is suggested that the key point of future research should be to broaden the visible light spectral response of modified fly ash pearl photocatalyst, to prepare suspended and magnetic modified fly ash floating pearl photocatalyst, to quantitatively predict the concentration of wastewater with the adsorption performance of the catalyst, complex wastewater system, Photocatalytic Oxidation with Coexisting Catalyst.