Mesoporous-macroporous phosphated

Meso-macroporous titanium phosphates with multiscaled and tunable porosity can also be prepared either by the use of a neutral surfectant or by the template-free method, but always via the self-formation phenomenon (Figure 32.16e-h) [126]. The formation of well-defined small macropore (50-160 nm in size) systems constructed from mesopores with a wormhole-like array could be spontaneously achieved in the absence of any surfactant molecule and/or external template (such as colloid crystals and emulsion droplets), while... 

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