In this study, mesoporous Montmorillonite-Silica composites prepared by using different amount Alginate as sacrificial template, for removal of Rhodamine B is investigated. By alternating Alginate amount it is aimed to switch the porosity of adsorbents thus the adsorption capacities of adsorbents. Synthesized adsorbents had been characterized by using Scanning Electron Microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and N₂-Ads/Des techniques. It is observed that beside the decrease in the micropore volume, the total pore volume of the adsorbents increased with the increasing of used Alginate amount. The total pore volumes of adsorbents synthesized with different Clay/Alginate ratio (10, 5, 1) were found as 0.116, 0.172, and 0.178 cm³/g, respectively. Batch adsorption studies showed that the maximum removal efficiencies were obtained at acidic conditions and the adsorbents had better fit with Freundlich isotherm. Qm values obtained from Langmuir isotherm were found as 24.47, 31.97 and 28.48 mg/g for synthesized adsorbents. Also, adsorption kinetic studies showed that for all adsorbents, experimental data had good fit to the pseudo-second order kinetics model. The model parameters were found as 5.9,6.3 and 6.5 (10^–3 g/ (mg min). Thermodynamic parameters were also investigated in the study. Negative ∆G^o values pointed out that the adsorption of RhB onto synthesized adsorbents was favorable process. Positive values of ∆Ho and ΔS indicated that the adsorption of RhB on adsorbents were endothermic and rising of randomness during the adsorption of RhB on the surface of the adsorbent. Adsorbents could be recovered at least five times without significant decrease in adsorption capacity.

在本研究中，研究了使用不同量的海藻酸盐作为牺牲模板制备的介孔蒙脱石-二氧化硅复合材料用于去除罗丹明B。通过改变海藻酸盐的量，目的是改变吸附剂的孔隙率，从而改变吸附剂的吸附能力。使用扫描电子显微镜、X射线衍射、傅里叶变换红外光谱和N ₂ -Ads/Des技术对合成的吸附剂进行了表征。观察到，除了微孔体积减小之外，吸附剂的总孔体积随着海藻酸盐用量的增加而增加。发现以不同粘土/海藻酸盐比例（10、5、1）合成的吸附剂的总孔体积分别为0.116、0.172和0.178 cm ³ /g。间歇吸附研究表明，在酸性条件下获得最大去除效率，且吸附剂更符合Freundlich等温线。对于合成的吸附剂，从 Langmuir 等温线获得的 Qm 值分别为 24.47、31.97 和 28.48 mg/g。此外，吸附动力学研究表明，对于所有吸附剂，实验数据都很好地符合准二级动力学模型。模型参数为 5.9、6.3 和 6.5 (10 ^–3  g/ (mg min))。研究中还研究了热力学参数。负 ΔG ^o值表明合成吸附剂对 RhB 的吸附是有利的过程。 ΔHo和ΔS为正值表明RhB在吸附剂上的吸附是吸热的并且在RhB在吸附剂表面的吸附过程中随机性上升，吸附剂可以恢复至少5次而吸附容量没有显着下降。