ZSM?5 has been widely used in the field of petrochemical industry. The extensive use of organic templates in its conventional synthesis process has caused serious problems on environmental and cost. In this paper, the hydrothermal synthesis of ZSM?5 with tetraethyl orthosilicate, aluminum sulfate octadecahydrate and alkaline hydrolysis product of HZSM?5 as silica source, alumina source and structural directing agent, respectively, has been investigated, which aims at developing of new process for green synthesis of zeolites. The synthesized samples were characterized by a series of techniques, such as XRD, TEM, SEM, N₂ physical adsorption and TG analysis. It has been shown that successful synthesis of ZSM?5 can be achieved by induction of alkaline hydrolysis product of HZSM?5 in organic template?free system. The prepared sample possesses a relative low crystallinity and specific surface area than ones from conventional process. The study in this paper has provided the chance for combination of green synthesis of zeolites and post?treatment route for synthesis of hierarchical zeolites.

β?cyclodextrin polymers modified with Fe₃O₄ (β?CDP@Fe₃O₄) was synthesized in alkaline medium using β?cyclodextrin (β?CD) as monomer and epichlorohydrin as crosslinker. The adsorption performances of β?CDP@Fe₃O₄ on bisphenol A (BPA) under static and dynamic conditions were investigated. The results of static experiment show that the adsorption performance of 100 mg/L BPA (pH=5.6) is best at 0.10 g β?CDP@Fe₃O₄. At this point, the equilibrium adsorption capacity, adsorption rate and the maximum adsorption capacity are 45.600 mg/g, 91.3%, and 113.600 mg/g, respectively. The results of dynamic experiment show that the smaller the liquid hourly space velocity, the higher the adsorbent utilization rate, and with the increase of BPA concentration, the adsorption breakthrough time and saturation time are declined. At the same time, the synthesis and adsorption mechanism of β?CDP@Fe₃O₄ were discussed. A rapid adsorption rate for the removal of BPA onto β?CDP@Fe₃O₄ from water solution was achieved, and the adsorption process was mainly due to hydrogen bond and hydrophobic interaction. β?CDP@Fe₃O₄ has good regenerative performance, through 6 cycles of static adsorption?desorption, and 3 cycles of dynamic adsorption?desorption without significant changes in adsorption performance.