Application of tungsten trioxide/graphite phase carbon nitride composite material in degradation of CIP
A composite material, degradation rate technology, applied in the application of degrading CIP, in the field of tungsten trioxide/graphite carbon nitride composite material, it can solve the problem of reducing degradation efficiency, and achieve high degradation efficiency, excellent photocatalysis and electrolysis. Catalytic activity, the effect of compensating for the reduction of degradation efficiency
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Embodiment 1～4
[0063] a WO 3 / g -C 3 N 4 The preparation method of composite material comprises the following steps:
[0064] 1) Put Na 2 WO 4 ·2H 2 O is evenly dispersed in distilled water, stirred at room temperature 20-25°C for 30 minutes to obtain A solution, and Na in A solution 2 WO 4 ·2H 2 The concentration of O is 0.02mmol·L -1 , add dicyandiamide to solution A, stir at room temperature 20-25°C for 30 minutes to obtain solution B, add glucose to solution B, stir at room temperature 20-25°C for 30 minutes to obtain solution C, Na 2 WO 4 ·2H 2 See Table 1 for the amounts of O, dicyandiamide and glucose.
[0065] 2) Transfer the C solution into a 100mL reaction kettle, seal it, react it with water at 200°C for 20h, cool it naturally to room temperature 20-25°C, centrifuge, wash with distilled water and ethanol successively, and dry at 80°C for 12h after washing. get solid;
[0066] 3) Grind the solid, put it into a crucible, place it in a muffle furnace for calcination at 5...
Embodiment 5～13
[0070] At room temperature at 20-25°C, degrade the CIP photoelectric Fenton system in a 100mL cubic quartz electrolytic cell. The degradation conditions of the CIP photoelectric Fenton system are: 80ml of simulated CIP wastewater is placed in the cubic quartz electrolytic cell, and the CIP wastewater The substances in the medium are shown in Table 2, and the pH of CIP wastewater changes from 0.5mol L -1 NaOH aqueous solution or 0.5mol L -1 H 2 SO 4 The aqueous solution is adjusted, and the adjusted pH is shown in Table 2. The carbon felt as the cathode and the platinum sheet as the anode were put into the CIP wastewater. The size of the carbon felt was 3cm×4cm×0.6cm, the size of the platinum sheet was 1cm×2cm×0.01cm, and the distance between the cathode and the anode was 1cm. Access O 2 and for lighting, where O 2 The flow rate is 100mL·min -1 , the light source is xenon light source, the xenon light source provides visible light irradiation (wavelength>420nm), and its l...
Embodiment 14
[0081] CIP photocatalytic degradation is carried out in a 100mL cubic quartz electrolytic cell at room temperature at 20-25°C. The conditions for CIP photocatalytic degradation are: the cubic quartz electrolytic cell contains 80ml of simulated CIP wastewater, and the CIP wastewater contains 50mg·L -1 CIP and 0.05mol·L -1 Na 2 SO 4 (solvent is water), the pH of CIP waste water is by 0.5mol L -1 H 2 SO 4 The aqueous solution was adjusted to pH=3. Access O 2 and for lighting, where O 2 The flow rate is 100mL·min -1 , the light source is xenon light source, the xenon light source provides visible light irradiation (wavelength>420nm), and its light intensity is 100mW cm -1 . Drop into the WO prepared by Example 2 3 / g -C 3 N 4 30 mg of composite material was used for CIP photocatalytic degradation, and the CIP wastewater was continuously stirred during the CIP photocatalytic degradation process to ensure the uniformity of the CIP wastewater during the photocatalytic deg...
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