A kind of activated carbon fiber methylene blue adsorption value online detection method
A technology of activated carbon fiber and methylene blue, which is applied in the textile field, can solve the problems of large experimental errors and achieve the effects of eliminating errors, improving test accuracy, and improving detection efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0046] Take 1.0 g of each of the four specifications of viscose-based activated carbon fibers ACF-1, ACF-2, ACF-3, and ACF-4 (Jiangsu Sutong Carbon Fiber Co., Ltd.) and place them in 1000 mL of distilled water to boil for 2 hours. Rinse and dry in an oven at 105°C for later use.
[0047] At room temperature, according to the detection conditions and parameters, 0.05 g of the treated activated carbon fiber samples were taken for the methylene blue adsorption experiment. The initial concentration of the methylene blue solution was 15 μg / mL, the adsorption test time was 5 hours, the test temperature was room temperature, and the solution volume was 5000 mL. The stirring rate of the stirrer was 500r / min, and the circulation rate of the solution was 10mL / min driven by a peristaltic pump. The solution passes through a 10mm flow cuvette, and the absorbance value of the solution is measured at a wavelength of 665nm. The online detection device is used to test for a period of time (th...
Embodiment 2
[0053] The concentrations of prepared methylene blue standard solutions were: 3 μg / mL, 6 μg / mL, 9 μg / mL, 12 μg / mL, 15 μg / mL. Measure its absorbance value at a wavelength of 665nm. Five sets of parallel experiments were carried out, and the results are shown in Table 2:
[0054] Table 2 Absorbance value of methylene blue at each concentration
[0055]
[0056] According to the obtained data, draw the methylene blue standard curve, such as image 3 shown. The methylene blue standard curve equation is: Abs=0.1649C+0.1457, R 2 = 0.999.
Embodiment 3
[0057] The determination of embodiment 3 adsorbent ACF consumption
[0058] The amount of adsorbent ACF used is in the range of 0.05-0.35g. Put different masses of ACF into the same methylene blue solution (the total volume of the solution is 5000mL, the concentration is 15μg / mL) for adsorption experiments, and the online detection device is used to obtain the dynamic adsorption for 8h. curve like Figure 4 shown.
[0059] Depend on Figure 4 It can be seen that with the increase of time, the dynamic adsorption curve of methylene blue decreases rapidly at first, and then tends to be flat, indicating that the adsorption rate of ACF to methylene blue gradually stabilizes from large to small, and the adsorption of ACF to methylene blue presents a dynamic balance. Experiments show that the same methylene blue solution is adsorbed within 8 hours. As the amount of ACF increases, the dynamic adsorption curve is less likely to be flattened. When the dosage is 0.05g, the curve is ba...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More