@article {Lin2019,
	title = {Efficient removal of dyes from dyeing wastewater by powder activated charcoal/titanate nanotube nanocomposites: adsorption and photoregeneration},
	journal = {Environmental Science and Pollution Research},
	volume = {26},
	number = {10},
	year = {2019},
	month = {Apr},
	pages = {10263{\textendash}10273},
	abstract = {Effective removal of dyes has been widely investigated by the adsorption of powder activated carbon and photodegradation by titanate nanotubes (TNTs). In this study, a facile one-step alkaline-hydrothermal method was applied to synthesize powder activated charcoal{\textendash}supported TNTs (TNTs@PAC). Adsorption of three representative dyes, i.e., cationic methylene blue (MB), cationic rhodamine B (RhB), and anionic methyl orange (MO), onto TNTs@PAC was evaluated by the adsorption kinetic experiments and adsorption isotherms. The first 30~min is the main time phase of adsorption, and MB, RhB, and MO obtained the experimental equilibrium uptake of 173.30, 115.06, and 106.85 mg/g, respectively, indicating their final removal efficiencies of 100\%, 69.36\%, and 64.11\%, respectively. The increase of pH value reduced adsorption capacity of MO (from 149.35~mg/g at pH of 2 to 96.99~mg/g at pH of 10), but facilitated MB adsorption, which was attributed to the charge distribution on the surface of TNTs@PAC and the charge of dyes at different pH. Furthermore, good capacity recoveries of MB by TNTs@PAC (\>{\th}inspace}99\%) were observed after UV irradiation treatment, indicating the used TNTs@PAC can be easily recycled for the adsorption of MB by UV irradiation. Overall, TNTs@PAC is an effective process for remediation of dye-contaminated water because of its adsorption performance for all selected dyes and good regeneration capacity for MB.},
	issn = {1614-7499},
	doi = {10.1007/s11356-019-04218-x},
	url = {http://doi.org/10.1007/s11356-019-04218-x},
	author = {Lin, Yingchao and Ma, Jun and Liu, Wen and Li, Zeyu and Kai He}
}