Key Laboratory of Agricultural Product Processing and Quality Control of Specialty (Co-construction by Ministry and Province), School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory for Food Nutrition and Safety Control of Xinjiang Production and Construction Corps, School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China.
Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA.
Int J Biol Macromol. 2024 Aug;275(Pt 2):133903. doi: 10.1016/j.ijbiomac.2024.133903. Epub 2024 Jul 31.
The necessity to look into waste biomass resource regeneration has increased due to growing environmental and energy-related problems. This study successfully developed an innovative fishbone-derived carbon-based solid acid catalyst using the carbonation-sulfonation method, which was subsequently applied to catalyze the hydrolysis of cellulose to produce nanocellulose. The data analysis reveals that the sulfonation treatment affects the microstructure of the catalyst, resulting in a decline in its specific surface area (134.48 m/g decreased to 9.66 m/g). However, this treatment doesn't hinder the introduction of acidic functional groups. In particular, the solid acid catalyst derived from fishbone exhibited a total acid content of 3.76 mmol/g, with a concentration of -SOH groups at 0.48 mmol/g. Furthermore, the solid acids originating from fishbones manifested remarkable thermal stability, exhibiting a mass loss of <15 % at temperatures up to 600 °C. Moreover, the catalyst displayed exceptional catalytic performance during the cellulose hydrolysis reaction, achieving an optimum nanocellulose yield of 45.7 % at an optimized reaction condition. An additional noteworthy feature is the solid acid catalyst's impressive recyclability, maintaining a nanocellulose yield of 44.87 % even after undergoing five consecutive usage cycles. This research outcome underscores an innovative approach to for the sustainable utilization of waste biomass resources.
由于环境和能源相关问题的日益严重，研究人员开始关注废物生物质资源的再生利用。本研究采用碳化-磺化法成功开发了一种创新性的鱼骨衍生碳基固体酸催化剂，并将其应用于纤维素水解制备纳米纤维素的催化过程。数据分析表明，磺化处理会影响催化剂的微观结构，导致其比表面积从 134.48 m/g 降低至 9.66 m/g。然而，这并不妨碍酸性官能团的引入。特别是鱼骨衍生的固体酸催化剂总酸含量为 3.76 mmol/g，-SOH 基团浓度为 0.48 mmol/g。此外，鱼骨衍生的固体酸表现出优异的热稳定性，在高达 600°C 的温度下质量损失小于 15%。此外，该催化剂在纤维素水解反应中表现出卓越的催化性能，在优化反应条件下可获得 45.7%的最佳纳米纤维素产率。另一个值得注意的特点是固体酸催化剂具有令人印象深刻的可循环使用性能，即使经过五次连续使用循环，仍能保持 44.87%的纳米纤维素产率。本研究结果为可持续利用废物生物质资源提供了一种创新方法。
