The results of MCs' degradation with photodegradation showed that photodegradation and photocata-lytic degradation were effective to MCs in some degrees. In the case of the photodegradation of MCs without TiO2 addi-tion, the influence of UV wavelengths on the degradation efficiency of MCs was clearly. UV with λ=254nm had a great effect on the degradation of MCs, and the effect increased with the enhancing of photo intensity. However, UV with λ=365nm had little role in the degradation of MCs, even under the condition of 1 hour iradiation with photo in-tensity of 760 μW·cm-2 or 6 700 μW·cm-2. In the case of TiO2 photocatalytic degradation, better effects were found in both in wavelength of 365nm and 254nm. However, the effect in the case of 254nm was still better than that of 365 nm.%通过微囊藻毒素( microMCs)直接光解和TiO2 光催化降解研究表明,MCs可不同程度的被紫外光直接光解或TiO2 光催化降解. 在无TiO2 颗粒催化剂存在的情况下,254 nm紫外光对MCs有较好的降解效果,效果随光强增加而提高,而365 nm紫外光在760 μW/cm2 和6 700 μW/cm2 两种光强下照射1 h,水中MCRR和MCLR仍然没有被降解.在TiO2 光催化条件下,365 nm 紫外光可以少量降解MCs,254 nm催化降解效果很明显.
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