Nano-fibrillated cellulose (NFC) as versatile carriers of TiO₂ nanoparticles (TNPs) for photocatalytic hydrogen generation

Abstract

Nano-fibrillated cellulose (NFC), an abundant natural biomacromolecule, can have many applications, such as support/carrier for nanoparticles, due to its unique properties.

Nano‐Fibrillated Cellulose as a Versatile Carrier of Ru/Cu Nanoparticles for the Catalytic Transfer Hydrogenation of 5‐Hydroxymethyfural to 2,5‐Bishydroxymethylfuran

“…The broad band in the 1650–1550 cm −1 region is associated with the C=O stretching vibration, the peak at 1430 cm −1 is attributed to the bending vibrations of C−H (CH/CH 2 ), the peak at 1015 cm −1 corresponds to the stretching vibrations of C−O (C−O‐C for glycosidic bond, backbone of NFC) . For RuCu@NFC and recycled RuCu@NFC, a minor change of the band wide and peak intensity between 1650∼1550 cm −1 can be observed, which is due to the change of carboxyl group into the ester bonds formed between NFC and Ru, Cu …”

“…Nano‐fibrillated cellulose (NFC), one kind of nanocellulose, as a carrier for nanoparticles has attracted more attention in recent years due to their unique features mentioned above. For instance, An et al . loaded TiO 2 nanoparticles (TNPs) on the surface of NFC to prepare NFC‐TNPs composite for photocatalytic hydrogen generation, the results revealed that the NFC‐TNPs composite had a 2∼5 times higher photocatalytic hydrogen generation rate in comparison with the control TNPs.…”

Theoretical calculation and experiment study on the electronic structure, microstructures and photocatalytic activity of N–Al codoped TiO2

“…1): (1) a N replaced O at the O site and an Al substituted the neighbor Ti at the Ti site (see Fig. 1(a)) and (2) similarly, a N replaced O at the O site and an Al substituted Ti at the Ti site; however, N and Al were far away from each other (see Fig. 1(b)).…”

“…TiO 2 is a photocatalyst that can be used for decomposing pollutants with benets of low-cost, non-toxic, high chemical stability, and high oxidative power. 1,2 However, TiO 2 can only show high photocatalytic activity under ultraviolet light; 3 this leads to a poor utilization of solar energy. Therefore, the commercialization of TiO 2 is limited greatly.…”

Loading of Iron (II, III) Oxide Nanoparticles in Cryogels Based on Microfibrillar Cellulose for Heavy Metal Ion Separation

“…Micro/nanofibrillar cellulose (MFC) is isolated from natural cellulose fibers by mechanical action after optional enzymatic or chemical pretreatment. MFC's high aspect ratio, biocompatibility, and abundant active hydroxyl and carboxyl groups make it attractive for applications as a host for particles [8,9], such as silica [10], silver [11], magnetic [12], and drug [13] nanoparticles. e respective preparation can be carried out in the slurry form, which implies a relatively large usage of water to remove loosely bound reactants and particles.…”