The Preparation Of Porous Materials By The Emulsion Template Method And The Study On The Behavior And Mechanism For Adsorbing LC And Cu(Ⅱ)

The environmental pollution is getting more serious with the rapid development of the industry and agriculture, such as pesticide residual increasingly accumulated in surface water, soil, food and organisms in. Heavy metal ions are gradually threatening human health by the industrial wastewater discharge. Therefore, how to quickly remove the pollutants that get the more and more attention of human, throughout the current study that efficient removal of pollutants is very active.This paper adopted the sulfonated styrene microspheres(SP) stabilized Pickering emulsion and carboxyl mesoporous silicas(CMSNs) interface grafted HIPEs product or hollow polydopamine capsules(HPDA) adhered onto HIPEs product, respectively. which prapared MPMMA, HPFs, HPDA-MPGMA porous materials. In the end, which used the LC and Cu(Ⅱ) as the object and studied the porous materials’ separation performance, behavior and adsorption mechanism.The first one, a novel, monodisperse macroporous microspheres with dents on their surfaces was synthesized by Pickering emulsion polymerization. In the experiment, the MPMMA absorbed typical pollutants LC, experimental equilibrium data was fitted by dynamic model, Langmuir and Freundlich isothermal equation, Thomas model. It is concluded that, the secondary dynamic model would be better explain the experimental results and flow adsorption more moderated Thomas industrial model equation. The Freundlich isotherm model was fitted well to the equilibrium data and equilibrium adsorption capacity of MPMMA were 59.88 umol g-1 at 298 K. Moreover, the adsorption capacity remained at 95% of the initial value, which implied that MPMMA particles had good regeneration capacity.The second one, CMSNs were loaded onto the MPGMA foams by interface grafted route. As a result, large amounts of carboxyl groups were introduced into the as-prepared hierarchical porous foams(HPFs) and these active binding sites could be benefited to the rapid capture of pollutants. The adsorption behaviors of HPFs for the model pollutant LC and Cu(Ⅱ) were studied in the subsequent single and binary treatment experiments. In single adsorption, the maximum adsorption capacity of HPFs for LC and Cu(Ⅱ) were 80.11 mg g-1 and 21.79 mg g-1 at 288 K, respectively. The adsorption capacity of the two groups was obviously increased, and the corresponding mechanism was studied in double adsorption.The third one, hollow polydopamine capsules(HPDA) were adhered onto the interface of synthetic macroporous foams via the biological adhesion method for prepared high specific surface, two kinds properties of adsorbent. Adsorption a clear division of responsibilities in this step that MPGMA adsorbed oil soluble LC, HPDA adsorbed water-soluble Cu(Ⅱ). Experiment concluded three biological adhesion HPDA in favour of Cu(Ⅱ) adsorption and MPGMA’s macroporous structure. The material is very good for adsorption of Cu(Ⅱ) in low concentration(<10 mg L-1), and the seven regeneration experiments show that the HPDA-MPGMA performance is stable that have potential advantages in the field of adsorption separation.