Detailed explanation of the acid hydrolysis preparation process of nanocellulose Nanocellulose is a high-performance material obtained by nano-native treatment of natural cellulose, with excellent mechanical properties, thermal stability, biocompatibility and environmental friendliness. Among them, Acid Hydrolysis is a common and mature preparation method, which is particularly suitable for obtaining cellulose nanocrystals (CNCs). This process selectively degrades the amorphous region of cellulose through acidic media, thereby retaining the crystalline region and ultimately forming a highly ordered nanostructure. 1. Process principle The acid hydrolysis method mainly relies on strong acids such as concentrated sulfuric acid or hydrochloric acid to hydrolyze cellulose at an appropriate temperature and reaction time. The acid preferentially acts on the amorphous region of the cellulose, causing it to break and dissolve, while the crystalline region is relatively stable due to its dense molecular arrangement structure, thus retaining it to form nanocrystals. The final nanocellulose

Detailed explanation of nanocellulose fermentation and cultivation process: Create a new path to high-purity bacterial cellulose With the continuous development of green and sustainable materials, nanocellulose (Nanocellulose) has shown great potential in many fields such as medical use, packaging, food, and electronic materials. Among them, Bacterial Cellulose (BC) prepared by microbial fermentation has become an important member of the nanocellulose family due to its high purity, uniform structure and three-dimensional network stability. This article will focus on the fermentation and culture process flow and key control parameters of bacterial cellulose, providing technical reference for efficient production. 1. Overview of the principle of fermentation culture nanocellulose is prepared by fermentation method. It is fermented in liquid culture medium containing carbon and nitrogen sources by fermentation of glucose and other substrates into β-1.

Application of nanocellulose in water treatment and adsorbents: Green and efficient emerging adsorbents With the acceleration of industrialization, the problem of water resource pollution is becoming increasingly serious. Traditional water treatment materials face challenges such as poor sustainability, low selectivity and high treatment costs. In recent years, Nanocellulose (Nanocellulose) has become an important candidate for the new generation of water treatment adsorbent materials due to its renewability, rich surface functional groups, high specific surface area and good mechanical properties. 1. The structure and adsorption potential of nanocellulose Nanocellulose is a material obtained by mechanical, chemical or biological nano-nanoization of natural cellulose. It mainly includes three forms: cellulose nanofiber (CNF), cellulose nanocrystal (CNC), bacterial cellulose (BC), which contains a large amount of hydroxyl groups on the surface, which can further introduce functional groups such as carboxyl groups, sulfonic acid groups, amino groups, and quaternary ammonium salt groups to enhance the use of different pollutants (such as heavy metal ions, organics).