Adsorption of methylene blue by CuBTC

1. Graphene, a two-dimensional honeycomb lattice structure carbon material, is closely packed with single-layer carbon. Since 2004, it has been found that graphene has excellent electrical, thermal and optical properties, which has attracted great attention of researchers. Recently, graphene composites have been the focus of research, The main contents are as follows: 1, ZnO / graphene oxide nanocomposites (go ZnO) were prepared by rapid precipitation of ZnO nanoparticles and graphene oxide in water ethanol medium. The results showed that go ZnO nanocomposites had good photocatalytic degradation effect, and the degradation amount reached 92%. 2, ZnO graphene nanocomposites were prepared by using ethylene glycol as the solvent, graphene oxide at high temperature and oxygen-containing groups on the surface

2. Using Enteromorpha as adsorbent for decolorization treatment of printing and dyeing wastewater will play a role in the treatment of waste, realize the resource utilization of Enteromorpha, and rece the adverse ecological environmental impact caused by its random stacking. In this study, fresh Enteromorpha prolifera was dried and crushed to make biological adsorbent to decolorize the simulated wastewater containing alkaline dye methylene blue (MB). On the basis of optimizing the adsorption conditions, the best adsorption effect of Enteromorpha prolifera on MB was obtained. The main conclusions are as follows. ① The optimal adsorption conditions for MB by Enteromorpha prolifera were as follows: initial concentration of dye in wastewater

4. On the adsorption of methylene blue on activated carbon
there is an adsorption capacity under each experimental condition (including temperature, concentration, adsorbent, pH and dosage, etc.), and the adsorption capacity will change as long as there is a factor change. The purpose of doing experiments is to compare with others. If your results are different from those of others, they have no comparative significance at all. You can measure the amount of adsorption under different conditions, but it is essential to measure an adsorption value according to the national standard, unless it is playing, not very formal.

5. Do not adjust the pH value, direct adsorption on the line

6. When the concentration of the original solution is high, the adsorption of cyx will appear in the multi molecular layer. If the concentration of the equilibrium solution is too low, the adsorption can not reach saturation. Therefore, the concentration of the original solution and the equilibrium solution should be in the appropriate range to rece the adsorption dose. The adsorption temperature can be increased. It can rece the adsorption pressure

7. The concentration of methylene blue solution is 1.2 g / L. the mass of methylene blue adsorbed by each gram of activated carbon (mg) is calculated, and then the number of ML methylene blue solution (1.2 g / L) is converted.

8. The adsorption value of methylene blue was 100-150mg / g
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9. To see the difference of absorbance before and after adsorption, quantify according to the absorbance standard curve ~
for example, suppose that the concentration of methylene blue in the initial state is C, the absorbance is a, and the absorbance after adsorption is B, then its resial concentration is BC / A, and the adsorbed concentration is (a-b) C / A, now understand~

10. Generally, the iodine adsorption value represents microporous benzene adsorption and methylene blue represents mesoporous, but it can only be used as a reference... Specific pore size analysis should be done separately

however, benzene adsorption is usually used to express the adsorption capacity of gas