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  • Open Access

    ARTICLE

    Role of Calcination Temperature on Isosorbide Production from Sorbitol Dehydration over the Catalyst Derived from Ce(IV) Sulfate

    Medta Boupan1,2, Kanyapak Prompang1, Achiraya Chompunuch1, Piwat Boonma1, Arthit Neramittagapong1,2,3,4, Somnuk Theerakulpisut5, Sutasinee Neramittagapong1,2,3,*

    Journal of Renewable Materials, Vol.11, No.7, pp. 2985-3000, 2023, DOI:10.32604/jrm.2023.026397

    Abstract Isosorbide is a multi-purpose chemical that can be produced from renewable resources. Specifically, it has been investigated as a replacement for toxic bisphenol A (BPA) in the production of polycarbonate (PC). In this study, the synthesis of isosorbide by sorbitol dehydration using a cerium-based catalyst derived from calcined cerium (IV) sulfate (300°C, 400°C, 450°C, 500°C, and 650°C) was investigated. The reaction occurred in a high-pressure reactor containing nitrogen gas. Advanced instrumental techniques were applied to analyze the characteristics of the calcined catalyst. The results showed that the calcined catalysts demonstrated different crystalline structures and sulfate species at different temperatures. However,… More > Graphic Abstract

    Role of Calcination Temperature on Isosorbide Production from Sorbitol Dehydration over the Catalyst Derived from Ce(IV) Sulfate

  • Open Access

    ARTICLE

    Investigation of the Nd-Ce-Mg-Zn/Substituted Hydroxyapatite Effect on Biological Properties and Osteosarcoma Cells

    Suha Q. AL-Shahrabalee*, Hussein Alaa Jaber

    Journal of Renewable Materials, Vol.11, No.3, pp. 1485-1498, 2023, DOI:10.32604/jrm.2023.025011

    Abstract Cancerous diseases and diseases resulting from bacteria and fungi are some of the pressures that humans face. Therefore, the development of biomaterials that are resistant to cancerous diseases, bacteria, and fungi has become one of the requirements of the medical field to extend the life of the biomaterial and fight pathogens after implanting these materials inside the human body. One of the important biomaterials used in the field of orthopedics is hydroxyapatite. In this research, Nano substituted hydroxyapatite was prepared by the wet precipitation method, including replacing 5% of the calcium ions with neodymium, cerium, magnesium, and zinc ions in… More > Graphic Abstract

    Investigation of the Nd-Ce-Mg-Zn/Substituted Hydroxyapatite Effect on Biological Properties and Osteosarcoma Cells

  • Open Access

    ARTICLE

    Effects of Nano-Cerium Oxide on Seed Germination and Seedling Growth of Vitex negundo

    Zi Yang, Shixian Fan, Xuehan Wei, Zhiming Zhang, Xin Gui*, Yong Zhao*

    Phyton-International Journal of Experimental Botany, Vol.89, No.4, pp. 893-903, 2020, DOI:10.32604/phyton.2020.013644

    Abstract Cerium oxide nanoparticles (CeO2NPs) are likely to have dramatic impacts on plant performances, yet the effects of CeO2NPs on seed germination and seedling growth have not been fully explored. In this study, the seed germination and seedling growth of subshrub species Vitex negundo under different concentrations of CeO2NPs (low-1 mg/L, medium-100 mg/L, high-500 mg/L) have been discussed. Results showed that: (1) The seed germination rate reduces by 11.25% and 2.5% under the low and medium concentrations of CeO2NPs, respectively, but increased by 7.08% under the high concentration; (2) CeO2NPs had significant effects on the growth traits (root length, shoot height… More >

  • Open Access

    REVIEW

    Fabrication and Application of CeO2 Nanostructure with Different Morphologies: A Review

    Xiaofei Cao1, Shuo Zhao1, ShuJun Yan2, Jun Hu1,*, Yong Dan1,*

    Journal of Renewable Materials, Vol.8, No.11, pp. 1443-1472, 2020, DOI:10.32604/jrm.2020.012113

    Abstract CeO2, as a significant functional material, Has a widespread application in many fields due to its excellent properties. In this review, we sum up a serious of methods to prepare and differentiate nanostructured cerium oxide with various morphologies based on dimensionality and its main applications in industry. We mainly summary the different strategies to synthetic the CeO2 with 0-D, 1-D, 2-D and 3-D and the key parameters which may affect the nanostructures. We hope that this review helps researchers master can look up CeO2 related knowledge more quickly upon the synthetic methods and comparing various morphologies or fabricating ways to… More >

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