In this study, zeolite Y was synthesized from sodium silicate, aluminum hydroxide, sodium hydroxide and distilled water under hydrothermal method. The Box–Behnken design was used as a response surface method considering seven factors affecting the crystallization of zeolite to determine the number of experiments. The linear, square and interaction effects of the factors were investigated. The factors consist of four factors for the gel composition, including the molar value of Si, Al, Na and H₂O and three factors for the synthesis conditions, including aging time, crystallization time and temperature. The XRD patterns of the synthesized samples were compared with the XRD pattern of standard zeolite Y. Among the samples, sample 50 with the highest intensity and maximum total area of 14 peaks, was selected as the reference sample and it was used to determine the relative crystallinity percentage of the remaining samples. Based on the results of the experiments, it was concluded that changes in the gel composition have a more significant effect on the response in comparison with changes in the synthesis conditions. In addition, optimization of the obtained model was carried out and a zeolite with higher relative crystallinity than the standard zeolite Y was synthesized. At the optimal point, zeolite Y was synthesized with a relative crystallinity of 117.5%. The composition of the gel was 0.59 SiO₂: 0.0563 Al₂O₃: 0.4266 Na₂O: 12.376 H₂O. The total synthesis time was 30 h.

本研究以硅酸钠、氢氧化铝、氢氧化钠和蒸馏水为原料，采用水热法合成了Y型沸石。采用Box-Behnken设计作为响应面法，考虑影响沸石结晶的七个因素来确定实验次数。研究了因素的线性效应、平方效应和交互效应。这些因素由四个影响凝胶组成的因素组成，包括Si、Al、Na和H _{2的摩尔值}O和合成条件三个因素，包括陈化时间、结晶时间和温度。将合成样品的 XRD 图谱与标准 Y 型沸石的 XRD 图谱进行比较，选取样品中 14 个峰强度最高、总面积最大的样品 50 作为参比样品，用于测定相对比值。其余样品的结晶度百分比。根据实验结果，得出的结论是，与合成条件的变化相比，凝胶组成的变化对响应具有更显着的影响。此外，对所得模型进行优化，合成了比标准Y沸石具有更高相对结晶度的沸石。在最佳点，合成的Y沸石相对结晶度为117.5%。凝胶的组成为 0.59 SiO2₂ :0.0563 Al ₂ O ₃ :0.4266 Na ₂ O:12.376 H ₂ O。总合成时间为30小时。