In this research, we proposed a synthesis of nano-silica aerogel (NSA, S₁–S₃) and nano-silica aerogel gelatin (NSA-G, S₄–S₆), which were hybrid aerogel by sol–gel method via ambient pressure drying. The aerogels’ backbone was modified by montmorillonite (MMT) in NSA and for NSA-G gelatin (G) and MMT were used to stabilize their building block. Also, free hydroxyl groups on their surface were changed to TMS-O and became more hydrophobic aerogels. The porosity results showed that the density of the optimum aerogels (S₂ and S₅) ranged from 0.084 to 0.047 g/cm³. It was also found that the hydrophobicity of the NSA-G aerogel decreased with increasing the content of gelatin into the silica aerogels. However, these aerogels were fully characterized by FTIR, FESEM, EDS, XRD, BET, and TGA/DTA analysis and they used as the adsorbent of Cu²⁺ and Ni²⁺ ions in aqueous media. The prepared aerogels effectively could remove these heavy metals from the aqueous media and NSA-G absorbent also illustrated a favorable result for adsorption. Also, the recyclability test for four adsorption–desorption of aerogels cycles was examined and they had a good effect even after the fourth cycle.

在这项研究中，我们提出了一种纳米二氧化硅气凝胶（NSA，S ₁ –S ₃）和纳米二氧化硅气凝胶明胶（NSA-G，S ₄ –S ₆）的合成，它们是通过溶胶-凝胶法通过常压干燥。气凝胶的骨架在NSA中被蒙脱土（MMT）改性，而NSA-G明胶（G）和MMT被用于稳定其结构单元。同样，其表面上的游离羟基变为TMS-O，并成为更具疏水性的气凝胶。孔隙率结果表明，最佳气凝胶（S ₂和S ₅）的密度在0.084至0.047 g / cm ^{3的范围内。}。还发现，随着二氧化硅气凝胶中明胶含量的增加，NSA-G气凝胶的疏水性降低。但是，这些气凝胶已通过FTIR，FESEM，EDS，XRD，BET和TGA / DTA分析得到了充分的表征，它们被用作水性介质中Cu ²⁺和Ni ²⁺离子的吸附剂。制备的气凝胶可以有效地从水性介质中去除这些重金属，NSA-G吸收剂也显示出良好的吸附效果。此外，还对气凝胶的四个吸附-解吸循环进行了可回收性测试，即使在第四次循环后，它们也具有良好的效果。