title: Preparing hydrophobic nanocellulose-silica film by a facile one-pot method.
abstract: Hydrophobic nanocellulose-silica film was successfully prepared by a facile one-pot method using tetraethoxysilane (TEOS) and dodecyl triethoxylsilane (DTES). Morphological characterization of the hydrophobic nanocellulose-silica (NC-SiO2-DTES) film showed well self-assembled DTES modified silica spherical nanoparticles with the particle sizes in the range of 88-126nm over the nanocellulose film. The hydrophobicity of the NC-SiO2-DTES film was achieved owing to the improvement of roughness of the nanocellulose film by coating dodecyl- terminated silica nanoparticles. An increase in DTES loading amount and reaction time increased the hydrophobicity of the film, and the optimum condition for NC-SiO2-DTES film preparation was achieved at DTES/TEOS molar ratio of 2.0 for 8h reaction time. Besides, the NC-SiO2-DTES film performed superoleophilic property with octane and hexadecane contact angles of 0°. It also showed an excellent hydrophobic property over all pH values ranged from 1 to 14.
authors: Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12120, Thailand.
authors: Duy
authors: D
authors: Le
authors: Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12120, Thailand.
authors: Suwadee
authors: S
authors: Kongparakul
authors: Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12120, Thailand.
authors: Chanatip
authors: C
authors: Samart
authors: Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan.
authors: Patchiya
authors: P
authors: Phanthong
authors: Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan.
authors: Surachai
authors: S
authors: Karnjanakom
authors: Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan.
authors: Abuliti
authors: A
authors: Abudula
authors: Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan; North Japan Research Institute for Sustainable Energy (NJRISE), Hirosaki University, Aomori 030-0813, Japan. Electronic address: guan@hirosaki-u.ac.jp.
authors: Guoqing
authors: G
authors: Guan
keywords: Hydrophobicity; Nanocellulose film; Silica nanoparticles; Stability; Superoleophilicity; Water contact angle