Utilizing cellulose sheets as structure promoter constructing different micronano titanate nanotubes networks for green water purification

In this work, we provide a novel strategy of constructing different micro-nano structure (arrayed, multilevel, flower-like) titanate nanotubes (TNTs) networks with
cellulose sheets as structure promoter. Through cellulose self-locking and
inter-locking, several micro-nano TNTs networks with higher specific surface area are
obtained and applied to toxic heavy metal Pb 2+ cations removal. It not only makes
abundant toxic Pb 2+ ions exchange with the inter-layer Na + ions of TNTs, but also
allows many Pb 2+ ions to be deposited onto the TNTs surface. As expected, heavy
metal Pb 2+ removal performance of the as-prepared TNTs networks miraculously
reaches 5.24 mmol g -1 . Moreover, the prepared titanate network is also exhibited a
good co-removal capacity of multi-component ions (Pb 2+ , Sr 2+ and Cs + ) and superior
acid/alkali adaptability. Therefore, the as-fabricated TNTs network with cellulose sheets as structure promoter could be regarded as a promising water purifier.