Macroporous TiO2 foam with mesoporous walls

Photoactivity of Titanium Dioxide Foams

“…Heterogeneous photocatalysis has been used as an effective technique for the remediation of chemical wastes. Titanium dioxide (TiO 2 ) is one of the most frequently investigated heterogeneous semiconductor photocatalysts and has been shown to be a relatively cheap and effective material to decompose various kinds of organic and inorganic wastes in both, the liquid and the gas phase [1][2][3][4]. As one of the most promising applications, the decomposition of nitrogen oxides (NO x ) in ambient air has been studied intensively.…”

Mesoporous Foam TiO2 Nanomaterials for Effective Hydrogen Production

“…Nowadays, the development of highly ordered porous materials has gained increased attention in scientific research 1. These multifunctional materials with controlled porosity can be applied in photocatalysis, photovoltaics, solar energy conversion, sensors, textiles, paints, and cosmetics 2.…”

“…The structure of the product resembles a network of interconnected flakes with irregular polygonal cavities of 200–500 nm in size. Moreover, hierarchical macro/mesoporous TiO 2 foams using polyurethane as a hard template and the EO 106 PO 70 EO 106 triblock copolymer (pluronic F127) as a soft template were prepared by a sol–gel method 1. The structure of the product results in a uniform, intrinsically interconnected macropore system with a macropore size that ranges from 70 to 450 μm.…”

Engineered Inks for Environment-Friendly Additive Manufacturing of Hierarchical Microstructures

“…Hierarchical structures are interesting material systems, because they combine features with dimensions spanning several orders of magnitude. Thus, they can be viewed as synergistic architectures that take advantage of the properties associated with materials at the nano, micro, meso and macro-scale [1,11,[36][37][38][39]. Particularly, metal-oxide mesostructures of TiO2 have been prepared using hydrothermal processing [40][41][42][43][44], resembling hierarchically structured shapes such as flowers, trees, hollow spheres, etc.…”

“…Ceramic based foams are highly desirable material systems because of their ability to mimic hierarchical organization widely existing in biological organisms [145]. Such organization is beneficial in numerous applications from catalysis [36,[157][158][159] to energy harvesting [39,[160][161][162] and storage [163], to biomedical [164][165][166].…”