TY - JOUR
T1 - Organic-Inorganic Hybrid Thin Films Fabricated by Layer-by-Layer Assembly of the Phosphorylated Cellulose Nanocrystal and Imogolite Nanotubes
AU - Li, Linlin
AU - Ma, Wei
AU - Higaki, Yuji
AU - Kamitani, Kazutaka
AU - Takahara, Atsushi
N1 - Funding Information:
The authors acknowledge the financial support of JSPS Grant-in-aid for Scientific Research (A) (grant nos. 26248053 and 17H01221). L.L. and W.M. contributed equally to this paper. GI-WAXD measurements were conducted on the BL40B2 beamline in SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (proposal no. 2018A1177). We thank Dr. Noboru Ohta for experimental assistance in BL40B2.
PY - 2018/11/6
Y1 - 2018/11/6
N2 - Phosphorylated cellulose nanocrystal (P-CNC)/imogolite nanotube (natural aluminosilicate nanotube) hybrid thin films were fabricated by spin-assisted layer-by-layer assembly. Phosphorylation of CNC with diammonium hydrogen phosphate ((NH4)2HPO4) was carried out to introduce phosphate groups on the CNC surface for enhanced interaction with imogolite. Structure of the P-CNC/imogolite thin film was characterized by atomic force microscopy, scanning electron microscopy, X-ray diffraction (XRD), and grazing incidence wide-angle XRD. The film thickness increased linearly with the increment of the P-CNC/imogolite bilayer. Benefitting from the strong affinity between the phosphate group of the P-CNC and the Al-OH group of imogolite, the P-CNC/imogolite thin films were quite stable in water within a wide range of pH values, compared with the deterioration of the CNC/imogolite film under same soaking conditions.
AB - Phosphorylated cellulose nanocrystal (P-CNC)/imogolite nanotube (natural aluminosilicate nanotube) hybrid thin films were fabricated by spin-assisted layer-by-layer assembly. Phosphorylation of CNC with diammonium hydrogen phosphate ((NH4)2HPO4) was carried out to introduce phosphate groups on the CNC surface for enhanced interaction with imogolite. Structure of the P-CNC/imogolite thin film was characterized by atomic force microscopy, scanning electron microscopy, X-ray diffraction (XRD), and grazing incidence wide-angle XRD. The film thickness increased linearly with the increment of the P-CNC/imogolite bilayer. Benefitting from the strong affinity between the phosphate group of the P-CNC and the Al-OH group of imogolite, the P-CNC/imogolite thin films were quite stable in water within a wide range of pH values, compared with the deterioration of the CNC/imogolite film under same soaking conditions.
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U2 - 10.1021/acs.langmuir.8b03107
DO - 10.1021/acs.langmuir.8b03107
M3 - Article
C2 - 30350706
AN - SCOPUS:85056139797
SN - 0743-7463
VL - 34
SP - 13361
EP - 13367
JO - Langmuir
JF - Langmuir
IS - 44
ER -