文献类型：期刊文献

英文题名：Fabrication of bio-based nanomicrospheres with a 3D porous structure for efficient matrine adsorption using cellulose-functionalized dendritic mesoporous organosilica nanoparticles

作者：Ma, Ning[1] Fang, Junyang[1] He, Lingxiao[1] Zhao, Xinxu[1] Wei, Shuangyu[1] Cai, Lingchao[1] Jin, Can[2] You, Chaoqun[1] Wang, Fei[1]

第一作者：Ma, Ning

通信作者：You, CQ[1];Wang, F[1];Jin, C[2]

机构：[1]Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Jiangsu Key Lab Chem & Utilizat Agroforest Biomass, Nanjing 210037, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China

年份：2025

卷号：309

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20251518201972);Scopus(收录号：2-s2.0-105002052425);WOS:【SCI-EXPANDED(收录号:WOS:001468739300001)】；

基金：We are highly grateful to the financial support from the National Key Research and Development Program of China (2022YFD2200805) , the National Natural Science Foundation of China (21905138) , and the Natural Science Foundation of Jiangsu Province (BK20190756) .

语种：英文

外文关键词：Cellulose nanocrystals; DMONs; Modification; Bio-based composite material; Matrine; Adsorption

摘要：Coptis herbs and Sophora moorcroftiana are primary sources of alkaloids with significant application value, including matrine (MT). Currently, in the separation and purification methods of alkaloids, while the adsorption method is straightforward and practical, most adsorption materials are non-renewable synthetic compounds, which can lead to environmental pollution. Therefore, we utilized TEMPO-modified natural biomass macro-molecular cellulose nanocrystals (TOCN) and environmentally degradable dendritic mesoporous organosilica nanoparticles (DMONs) as raw materials, employing a surface assembly technique to coat negatively charged cellulose onto the surface of DMONs. This process led to the synthesis of TOCN@DMONs, an effective and ecofriendly bio-based composite material. The TOCN@DMONs were subjected to various analytical techniques, which unequivocally confirmed its successful synthesis and demonstrated its impeccable physical and chemical properties. The prepared TOCN@DMONs exhibited nanoscale dimensions, abundant pore structure, and excellent thermal stability. The adsorption process of MT on TOCN@DMONs followed the pseudo-second-order kinetics and Langmuir isotherm model. Thermodynamic parameters indicated that the adsorption process was spontaneous, endothermic, and involved weak chemical bonds. These findings indicate that TOCN@DMONs, as a green and highly efficient adsorbent, has a good application potential for the concentration of total alkaloids and the purification of MT from Coptis herbs and Sophora moorcroftiana extracts.