果糖脱水法制备5-羟甲基糠醛的新型固体酸催化剂。

IF 1 4区医学 Q4 ENGINEERING, BIOMEDICAL

Bio-medical materials and engineering Pub Date : 2022-05-30 DOI:10.3233/bme-211385

Sile Liu, Dong-hu Shang, Hailong Wang, Jing Wu

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引用次数: 0

摘要

5-羟甲基糠醛(5-HMF)是一种高附加值的平台化合物，可以在酸性条件下将己糖脱水得到。目的以ZSM-5分子筛为载体，以磷钨酸(TPA)为活性成分，提出了一种新的浸渍策略，研究了果糖脱水工艺对浸渍工艺的影响，成功获得了环保、低成本的5-羟甲基糠醛(5-HMF)。方法采用XRD、BET、NH3-TPD和SEM对固体酸催化剂的结构、比表面积、孔径、酸度和微观结构进行表征。考察了反应温度、反应时间、催化剂用量对5-羟甲基糠醛(5-HFM)收率的影响。结果TPA/ZSM-5(质量比20:10)具有良好的分散性和催化活性，果糖用量为5 g，反应温度为140℃，反应时间为2 h，催化剂用量为0.5 g, 5-羟甲基糠醛的收率为80.75%，5-羟甲基糠醛的收率经5次循环后仍保持在75%以上。结论

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Novel solid acid catalyst for the production of 5-hydroxymethylfurfural with fructose dehydration.

BACKGROUND 5-Hydroxymethylfurfural (5-HMF) is a high value-added platform compound which can be obtained by dehydration of hexose under acidic conditions. OBJECTIVE In this paper, a novel impregnation strategy for the molecular sieves (ZSM-5) as carrier and phosphotungstic acid (TPA) as active ingredient is proposed, the influence of the fructose dehydration process were studied and eco-friendliness, low-cost 5-hydroxymethylfurfural (5-HMF) was successfully obtained. METHOD The structure surface area, pore size, acidity and microstructure of solid acid catalysts were investigated by XRD, BET, NH3-TPD and SEM. The influences of reaction temperature, reaction time, catalyst dosage on the yield of 5-hydroxymethylfurfural (5-HFM) were investigated. RESULTS The results showed that TPA/ZSM-5 (mass ratio 20:10) has good dispersion and catalytic activity, fructose dosage 5 g, reaction temperature 140 °C, reaction time 2 h, catalyst dosage 0.5 g, and the yield of 5-hydroxymethylfurfural was 80.75% and after five times use the yield of 5-HMF remained above 75%. CONCLUSION

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来源期刊

Bio-medical materials and engineering 工程技术-材料科学：生物材料

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： The aim of Bio-Medical Materials and Engineering is to promote the welfare of humans and to help them keep healthy. This international journal is an interdisciplinary journal that publishes original research papers, review articles and brief notes on materials and engineering for biological and medical systems. Articles in this peer-reviewed journal cover a wide range of topics, including, but not limited to: Engineering as applied to improving diagnosis, therapy, and prevention of disease and injury, and better substitutes for damaged or disabled human organs; Studies of biomaterial interactions with the human body, bio-compatibility, interfacial and interaction problems; Biomechanical behavior under biological and/or medical conditions; Mechanical and biological properties of membrane biomaterials; Cellular and tissue engineering, physiological, biophysical, biochemical bioengineering aspects; Implant failure fields and degradation of implants. Biomimetics engineering and materials including system analysis as supporter for aged people and as rehabilitation; Bioengineering and materials technology as applied to the decontamination against environmental problems; Biosensors, bioreactors, bioprocess instrumentation and control system; Application to food engineering; Standardization problems on biomaterials and related products; Assessment of reliability and safety of biomedical materials and man-machine systems; and Product liability of biomaterials and related products.