The above results indicate that bicontinuous morphologies of SVA can be prepared by introducing diol molecules. Besides NPG, it is expected that the other diols can also be applied to control the self-assemblies of SVA. To this end, the self-assemblies of SVA in the presence of EG and BPS were investigated. Figure We have already demonstrated that mesoporous structures with bicontinuous morphology can be prepared by self-assembly of SVA triblock copolymer under kinetic controlling. More importantly, the preserved P4VP segments grafting on the pore-wall make the porous materials able to adsorb organic dyes and metallic ions. To this end, Orange G (OG) and Cu 2+ were used to verify the adsorption properties of the porous materials. We also prepared mesoporous PS bulk without P4VP decoration as a control, termed as eSA (Figure ). To measure the adsorption properties, eSVA/N5 and eSA were immersed in aqueous solutions of OG and Cu 2+ for varying time intervals, and UV-vis spectroscopy tests were conducted (Figures and). Figure shows adsorption capacities of OG and Cu 2+ ion by eSVA/N5 and eSA. It is found that the adsorption capacities increase and gradually reach saturation, due to the diffusion of dye molecules and ions in the grafted layer of P4VP. This is consistent with the previous report. The equilibrium adsorption capacity (qe) of mesoporous materials for OG and Cu 2+ ion at different time intervals can be calculated based on the standard curves (Figures and). The equilibrium adsorption capacities of OG and Cu 2+ by eSV/N5 are 7.5 mg/g and 13.2 mg/g, respectively. In contrast, no adsorption on OG and Cu 2+ ion can be detected in eSA, confirming that the adsorption capacity of eSVA/N5 is attributed to the presence of P4VP segments grafting on the pore walls. Moreover, taking advantage of solution processing, mesoporous PS bulk with P4VP decoration can be prepared onto solid substrates as coating layer. To this end, an adsorption column containing several inner helical skeletons was prepared by 3D printing (Figure ). By injecting SVA/N5 solution into the column, the composite can be coated onto the surface of the helical skeletons. After etching, porous coating layers can be obtained (Figure ). Then, the solution of OG was slowly passed through the column by using a syringe pump, and the filtrate was repeatedly passed through the column for seven times. As shown in Figure , the adsorption reaches equilibrium after passing the column for 6 times, and the equilibrium adsorption capacity is 17.3 mg/g. It is noteworthy that, as it is challenging to control the evaporation rate of SVA/NPG solution in the column, more work is need to further optimize the morphology of coated SVA layer. The follow-up research is ongoing in our laboratory.