Silica exists in three different morphologies (particles, networks and gels) when constructing superhydrophobic materials. Researchers give out a panoramic presentation about the synthesis, fabrication, and properties of these kinds of silica. Recent applications, such as anti-reflection, oil-water separation and environmental, are introduced. P. Tian et al., Applied Surface Science, Vol. 426, 31 December 2017 "2,209 of the 2,328 RAL colours in total are made with titanium dioxide. This is equivalent to a rate of 95%." A paper proves the resistance ...