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A novel green process for tannic acid hydrolysis using an internally sulfonated hollow polystyrene sphere as catalyst
Luo, Qionglin; Zeng, Shunqin; Shu, You; Fu, Zaihui; Zhao, Hongran; Su, Shengpei
2018
发表期刊RSC ADVANCES
卷号8期号:31页码:17151-17158
摘要A polystyrene-hollow sphere catalyst was prepared by treating polystyrene-encapsulated calcium carbonate particles with concentrated hydrochloric acid. This catalyst was characterized using TGA, FTIR, optical microscope, SEM-EDX and XPS. Evidences from SEM-EDX and XPS analyses indicated that the sultanate groups were on the inner surface of the polystyrene hollow sphere. The polystyrene hollow spheres were used as catalyst in the hydrolysis of tannic acid. Reaction conditions including the reaction temperature and time, loading of catalyst, ratio of tannic acid to H2O and number of recycles were optimized. A high yield of gallic acid was obtained as the reaction performed under the following conditions: a temperature of 80 degrees C, a molar ratio of tannic acid to H2O of 1 : 3, and a catalyst loading of 7% w/w (based on the mass of tannic acid). This catalyst showed excellent catalytic performance, easy separation, high stability and good reusability. This work provides a new strategy for the controllable synthesis of polystyrene hollow structures with sulfonic groups on the inner surface and an excellent and prospective catalyst for the production of gallic acid through hydrolysis of tannic acid.
关键词Efficient Conversion Tannase
学科领域Cell Biology ; Physiology
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/16897
专题2018专题
推荐引用方式
GB/T 7714
Luo, Qionglin,Zeng, Shunqin,Shu, You,et al. A novel green process for tannic acid hydrolysis using an internally sulfonated hollow polystyrene sphere as catalyst[J]. RSC ADVANCES,2018,8(31):17151-17158.
APA Luo, Qionglin,Zeng, Shunqin,Shu, You,Fu, Zaihui,Zhao, Hongran,&Su, Shengpei.(2018).A novel green process for tannic acid hydrolysis using an internally sulfonated hollow polystyrene sphere as catalyst.RSC ADVANCES,8(31),17151-17158.
MLA Luo, Qionglin,et al."A novel green process for tannic acid hydrolysis using an internally sulfonated hollow polystyrene sphere as catalyst".RSC ADVANCES 8.31(2018):17151-17158.
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