Different zeolite nanostructures were synthesized from waste aluminum cans via a low-cost hydrothermal method using different silicon sources. The produced nanostructures were identified using XRD, FT-IR, SEM, and TEM analyses. XRD proved that the samples which synthesized using fumed silica and sodium metasilicate consist of a composite of (analcime, hydroxysodalite, and zeolite P1) and (sodium aluminum silicate hydroxide hydrate and nepheline hydrate), respectively. Moreover, the samples which synthesized using silica gel and tetraethyl orthosilicate composed of LTA zeolite and a composite of (sodium aluminum silicate hydroxide hydrate and zeolite 4A), respectively. The as-prepared zeolite nanostructures were tested in the removal of malachite green dye from aqueous media using a batch method. The results revealed that the adsorption processes fitted well with the pseudo-second-order kinetic model and Langmuir adsorption isotherm. In addition, the mechanism of adsorption processes was controlled by three successive stages, namely inner diffusion, outer diffusion, and pore diffusion processes where the pore diffusion is the rate-determining step. Additionally, thermodynamic parameters showed that the adsorption processes were spontaneous, physisorption, and exothermic.

通过使用不同硅源的低成本水热法，从废铝罐中合成了不同的沸石纳米结构。使用XRD，FT-IR，SEM和TEM分析来鉴定产生的纳米结构。XRD证明，使用气相法二氧化硅和偏硅酸钠合成的样品分别由（萘甲肟，羟基苏打石和沸石P1）和（硅酸钠铝氢氧化物水合物和霞石水合物）组成。此外，分别使用硅胶和由LTA沸石组成的原硅酸四乙酯和（水合硅酸钠铝和4A沸石）的复合物合成的样品。使用分批方法测试了所制备的沸石纳米结构，以从水性介质中去除孔雀石绿染料。结果表明，吸附过程与拟二级动力学模型和Langmuir吸附等温线吻合良好。另外，吸附过程的机理由三个连续的阶段控制，即内部扩散，外部扩散和孔扩散过程，其中孔扩散是决定速率的步骤。另外，热力学参数表明吸附过程是自发的，物理吸附和放热的。