@misc{10481/55523,
year = {2018},
month = {9},
url = {http://hdl.handle.net/10481/55523},
abstract = {Carbon–phosphorus–titanium composites (CPT) were synthesized by Ti-impregnation and
carbonization of cellulose. Microcrystalline cellulose used as carbon precursor was initially dissolved
by phosphoric acid (H3PO4) to favor the Ti-dispersion and the simultaneous functionalization of
the cellulose chains with phosphorus-containing groups, namely phosphates and polyphosphates.
These groups interacted with the Ti-precursor during impregnation and determined the interface
transformations during carbonization as a function of the Ti-content and carbonization temperature.
Amorphous composites with high surface area and mesoporosity were obtained at low Ti-content
(Ti:cellulose ratio = 1) and carbonization temperature (500ºC), while in composites with Ti:cellulose
ratio = 12 and 800ºC, Ti-particles reacted with the cellulose groups leading to different Ti-crystalline
polyphosphates and a marked loss of the porosity. The efficiency of composites in the removal
of the Orange G dye in solution by adsorption and photocatalysis was discussed based on their
physicochemical properties. These materials were more active than the benchmark TiO2 material
(Degussa P25), showing a clear synergism between phases.},
organization = {This research is supported by the FEDER and Spanish projects CTQ2013-44789-R (MINECO) and
P12-RNM-2892 (Junta de Andalucía). H.H. gratefully thanks the support of Erasmus-Mundus (Al-Idrisi II) project
for PhD scholarship. S.M.-T. acknowledges the financial support from University of Granada (Reincorporación
Plan Propio). J.C.-Q. is grateful to the Junta de Andalucía for her research contract (P12-RNM-2892).},
publisher = {MDPI},
keywords = {Microcrystalline cellulose},
keywords = {Chemical functionalization},
keywords = {Polyphosphates},
keywords = {Synergism},
keywords = {Physicochemical properties},
keywords = {Orange G},
keywords = {Photocatalysis},
title = {On the Interactions and Synergism between Phases of Carbon–Phosphorus–Titanium Composites Synthetized from Cellulose for the Removal of the Orange-G Dye},
author = {Hamad, Hesham and Castelo-Quibén, Jesica and Morales Torres, Sergio and Carrasco Marín, Francisco and Pérez Cadenas, Agustín Francisco and Maldonado Hodar, Francisco José},
}