RT Journal Article
T1 Direct Production of Cellulose Nanocrystals from OldNewspapers and Recycled Newsprints
A1 Campano Tiedra, Cristina
A1 Miranda Carreño, Rubén
A1 Merayo, Noemí
A1 Negro Álvarez, Carlos Manuel
A1 Blanco Suárez, María Ángeles
AB Cellulose nanocrystals (CNC) are high added value products which can be used in many applications. In this research, CNC were directly produced from two recycled papers: old newspapers (ONP) and 100% recycled newsprint (NP). CNC were also obtained from NP by previously isolating the cellulose particles by alkali and bleaching treatments. CNC yield and quality was assessed through lignin and ash determination, X-ray diffraction analysis, atomic force microscopy and thermogravimetric analysis. Not only crystallinities resulted similar (92-95%), but also aspect ratios (L/d) (each in the range of 50-120). However, different CNC purities and hydrolysis and process yields were obtained. Thus, CNC purity decreased from 93 to 77%, hydrolysis yield was reduced from 64 to 58% but process yield strongly improved from 35 to 60% when no pretreatment was used. Therefore, this study proves the viability of the direct production of CNC from recycled papers.
PB Elsevier
SN 0144-8617
YR 2017
FD 2017
LK https://hdl.handle.net/20.500.14352/17833
UL https://hdl.handle.net/20.500.14352/17833
LA eng
NO Campano, Cristina, et al. «Direct Production of Cellulose Nanocrystals from Old Newspapers and Recycled Newsprint». Carbohydrate Polymers, vol. 173, octubre de 2017, pp. 489-96. DOI.org (Crossref), https://doi.org/10.1016/j.carbpol.2017.05.073.
NO Ministerio de Economía y Competitividad (España)
DS Docta Complutense
RD 25 sept 2025