红外吸收峰强度主要取决于跃迁类型、基团的极性强度、被测物的浓度[43]

The intensity of the infrared absorption peak mainly depends on the type of transition, the polar intensity of the group, and the concentration of the analyte [43]. The stronger the polarity of the group, the greater the vibration absorption intensity, and the higher the concentration of the analyte, the greater the absorption intensity [43]. A series of samples of adsorbents with different initial concentrations of MO were compared with MO respectively. It is found by comparison that with the increase of the initial concentration of the MO solution, the HNTs series samples only show the change of the characteristic absorption peaks of CH3 near the wavenumbers of 2901.4 and 2817.2. From the enlarged detail of the HNTs series samples (Figure 6c), it can be seen that although the peak intensity of CH3 has increased but the change is small, these conditions indicate that HNTs adsorbed a smaller amount of MO. And compared with MO, the CH3 absorption peak wave number of MO-adsorbed HNTs increased, which may be caused by the interaction between HNTs and MO.

The intensity of infrared absorption peak mainly depends on the type of leap, the polar strength of the base group, and the concentration of the subject under test. The stronger the polarity of the group, the greater the vibration absorption intensity, the higher the concentration of the subject under test and the greater the absorption intensity. A series of samples of adsorbents at different initial concentrations of MO were compared with MO. The comparison showed that with the increase of the initial concentration of MO solution, the HNTs series samples showed no change in CH3 characteristic absorption peaks near the wave numbers of 2901.4 and 2817.2. As can be seen from the detailed amplification of the HNTs series samples (Figure 6c), although the peak strength of CH3 increased but the change was small, these conditions indicate that HNTs adsorbed a small amount of MO. And compared with MO, the ch3 absorption peak wave number of HNTs that absorb MO increases, which may be caused by the interaction between HNTs and MO.

The intensity of the infrared absorption peak mainly depends on the type of transition, the polar intensity of the group, and the concentration of the measured substance [43]. The stronger the polarity of the group, the greater the vibration absorption intensity, and the higher the concentration of the measured substance, the greater the absorption intensity [43]. A series of adsorbents with different initial concentration of Mo were compared with mo. It is found that with the increase of the initial concentration of Mo solution, the CH3 characteristic absorption peak of HNTs series samples only changes from scratch near the wavenumbers of 2901.4 and 2817.2. It can be seen from the detailed enlarged diagram (Fig. 6c) of HNTs series that although the peak intensity of CH3 increases, the change is small, which indicates that HNTs adsorb a small amount of mo. Compared with Mo, the number of CH3 absorption peaks of HNTs adsorbed with Mo increased, which may be caused by the interaction between HNTs and mo.<br>