The slow photon effect was studied by means of the photocatalytic degradation of stearic acid over TiO₂ inverse opals. The comparison of the degradation rates over inverse opals with those obtained over disordered structures at different irradiation angles showed that the irradiation at the blue edge of the stopband leads to the activation of the effect, evidenced by an improvement factor of 1.8±0.6 in the reaction rate for irradiation at 40°. The rigorous coupled-wave analysis (RCWA) method was employed to confirm the source of the enhancement; simulated spectra showed an enhancement in the absorption of the TiO₂ matrix that composes the inverse opal at a 40° irradiation angle, owing to an appropriate position of the stopband in relation to the absorption onset of TiO₂.

通过TiO ₂反蛋白石对硬脂酸的光催化降解研究了慢速光子效应。将反蛋白石的降解速率与在不同辐照角度在无序结构上获得的降解速率进行比较表明，阻带蓝色边缘的辐照导致效应的激活，反应中的改善因子为1.8±0.6 40°的照射速率。严格的耦合波分析（RCWA）方法被用来确定增强的来源。模拟光谱显示，由于阻带相对于TiO ₂的吸收起始位置合适，因此在40°照射角下构成反蛋白石的TiO ₂基质的吸收有所增强。。