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Synthesis and process modeling of mesoporous γ-Al2O3 granules using the biopolymer chitosan via experimental design
International Journal of Applied Ceramic Technology ( IF 1.8 ) Pub Date : 2022-09-26 , DOI: 10.1111/ijac.14225 Behnam Mohammadi 1 , Seyed Mohammad Mirkazemi 1 , Yaser Vahidshad 2 , Akram Dorani 2
International Journal of Applied Ceramic Technology ( IF 1.8 ) Pub Date : 2022-09-26 , DOI: 10.1111/ijac.14225 Behnam Mohammadi 1 , Seyed Mohammad Mirkazemi 1 , Yaser Vahidshad 2 , Akram Dorani 2
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In this study, biopolymer chitosan is presented as a template for synthesizing and shaping the mesoporous γ-Al2O3 macrospheres. This porous γ-Al2O3 granule has a high surface area (310 m2/g), high pore volume (.6148 cm3/g), and pore diameter between 2 and 10 nm. The full factorial design based on a mathematical model was implemented to study the acid concentration, chitosan amount, ammonia concentration, and aging time affecting the responses (Brunauer–Emmett–Teller surface area and pore volume). Predicted responses were found to be in satisfactory agreement with experimental values (R2 = .9580 and .9109, respectively). The adequacy of the model was examined by analyzing the residual distribution plots and Pareto graph. X-ray diffraction, scanning electron microscopy (SEM), thermogravimetric analysis, and N2 adsorption/desorption techniques are employed to characterize the structure of the prepared γ-alumina sample.
中文翻译：
通过实验设计使用生物聚合物壳聚糖合成和工艺模拟介孔 γ-Al2O3 颗粒
在这项研究中，生物聚合物壳聚糖作为合成和塑造介孔 γ-Al 2 O 3大球的模板。这种多孔 γ-Al 2 O 3颗粒具有高表面积 (310 m 2 /g)、高孔体积 (.6148 cm 3 /g) 和 2 至 10 nm 的孔径。实施基于数学模型的全因子设计来研究酸浓度、壳聚糖量、氨浓度和老化时间影响响应（Brunauer-Emmett-Teller 表面积和孔体积）。发现预测的响应与实验值（R 2 = .9580 和 .9109，分别）。通过分析残差分布图和帕累托图来检查模型的充分性。采用 X 射线衍射、扫描电子显微镜 (SEM)、热重分析和 N 2吸附/脱附技术表征制备的 γ-氧化铝样品的结构。
更新日期：2022-09-26
中文翻译：
通过实验设计使用生物聚合物壳聚糖合成和工艺模拟介孔 γ-Al2O3 颗粒
在这项研究中，生物聚合物壳聚糖作为合成和塑造介孔 γ-Al 2 O 3大球的模板。这种多孔 γ-Al 2 O 3颗粒具有高表面积 (310 m 2 /g)、高孔体积 (.6148 cm 3 /g) 和 2 至 10 nm 的孔径。实施基于数学模型的全因子设计来研究酸浓度、壳聚糖量、氨浓度和老化时间影响响应（Brunauer-Emmett-Teller 表面积和孔体积）。发现预测的响应与实验值（R 2 = .9580 和 .9109，分别）。通过分析残差分布图和帕累托图来检查模型的充分性。采用 X 射线衍射、扫描电子显微镜 (SEM)、热重分析和 N 2吸附/脱附技术表征制备的 γ-氧化铝样品的结构。
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