Putri Suriati Eka, Pratiwi Diana Eka, Tjahjanto Rachmat Triandi, Rahman Abd, Heryanto Heryanto, Tahir Dahlang
Department of Chemistry, Universitas Negeri Makassar, 90224, Indonesia.
Department of Chemistry, Brawijaya University, 65145, Indonesia.
Int J Biol Macromol. 2025 Jun;311(Pt 4):143502. doi: 10.1016/j.ijbiomac.2025.143502. Epub 2025 May 1.
This research focuses on the synthesis of a novel low-cost, environmentally friendly, and recyclable Nano-porous ceramic using natural clay and cassava starch by the gelcasting method, which is then used as a TiO catalyst support. TiO Nano-porous ceramics synthesized using various amounts of cassava starch (4 %, 6 %, and 8 %), and impregnation by TiO was performed at various calcination temperatures (500 °C, 800 °C, and 1100 °C). X-Ray diffraction spectra were used for the analysis of structural properties, Fourier transform infrared (FTIR) spectra for the analysis of bonding characteristics and scanning electron microscopy image for the surface Nano-porous structure. The TiO-impregnated phases showed the maximum calcination temperature in the presence of rutile and brookite structures at 800 °C with 4 % and 8 % cassava starch. The highest crystallinity was observed at 1100 °C calcination temperature. The bonding formation of OTiO, OH, and OSiO indicated that the TiO catalyst successfully impregnated the Nano-porous ceramic. At high temperatures, the decreases in absorption intensity indicated that the covalent bond between OTiO decreased, but the intensity increased for the TiO-impregnated Nano-porous ceramic with 4 % cassava starch. The highest degradation was 97.11 % for the TiO Nano-porous ceramic with 8 % cassava starch at the calcination temperature of 500 °C under 180 min irradiation. In addition, optical properties were determined from the quantitatively analysis of FTIR spectra using Maclaurin's method, and the corresponding results were discussed in detail. The TiO Nano-porous ceramic showed high degradation under all treatments, which indicated that this new material has a high potential for wastewater treatment in the future.
本研究聚焦于通过凝胶注模法，利用天然粘土和木薯淀粉合成一种新型低成本、环境友好且可回收的纳米多孔陶瓷，随后将其用作TiO催化剂载体。使用不同量的木薯淀粉（4%、6%和8%）合成TiO纳米多孔陶瓷，并在不同的煅烧温度（500℃、800℃和1100℃）下进行TiO浸渍。利用X射线衍射光谱分析结构特性，傅里叶变换红外（FTIR）光谱分析键合特征，扫描电子显微镜图像分析表面纳米多孔结构。在存在金红石和板钛矿结构的情况下，含4%和8%木薯淀粉的TiO浸渍相在800℃时显示出最高煅烧温度。在1100℃煅烧温度下观察到最高结晶度。OTiO、OH和OSiO的键合形成表明TiO催化剂成功浸渍到纳米多孔陶瓷中。在高温下，吸收强度的降低表明OTiO之间的共价键减少，但含4%木薯淀粉的TiO浸渍纳米多孔陶瓷的强度增加。在500℃煅烧温度下，180分钟辐照后，含8%木薯淀粉的TiO纳米多孔陶瓷的最高降解率为97.11%。此外，使用麦克劳林方法通过FTIR光谱的定量分析确定光学性质，并详细讨论了相应结果。TiO纳米多孔陶瓷在所有处理下均表现出高降解率，这表明这种新材料在未来废水处理方面具有很高的潜力。
