%0 Journal Article %1 WOS:000522731700059 %A Marques, Thalles M F %A Sales, Debora A %A Silva, Lucinaldo S %A Bezerra, Roosevelt D S %A Silva, Mateus S %A Osajima, Josy A %A Ferreira, Odair P %A Ghosh, Anupama %A Filho, Edson C Silva %A Viana, Bartolomeu C %A Matos, Jose M E %C RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS %D 2020 %I ELSEVIER %J APPLIED SURFACE SCIENCE %K APTMS; Adsorption; Anionic dyes} nanotubes; titanate {Functionalized %R 10.1016/j.apsusc.2020.145659 %T Amino-functionalized titanate nanotubes for highly efficient removal of anionic dye from aqueous solution %V 512 %X In the context of mitigating the harmful impacts caused to the environment, in particular the water pollution, by the indiscriminate discharge of anionic dyes, this work reports the use of sodium titanate nanotubes (NaTiNTs) functionalized with amine group (NaTiNTs-NH2), obtained from the reaction of nanotubes with 3-aminopro-pyltrimethoxysilane (APTMS), as adsorbent. The physicochemical characterizations showed that APTMS interacts covalently with the surface of NaTiNTs and the proposed adsorbent, NaTiNTs-NH2, retained morphological and crystalline structure after the functionalization. Remazol blue R (RB) was used as the model molecule of anionic dye and the adsorption tests were carried outin the aqueous solution, which showed that the matrix NaTiNTs-NH2 presents very high adsorption capacity of RB dye (435.68 +/- 6.05 mgg(-1)) and the process occurs at monolayer by chemisorption. The adsorption process is thermodynamically favorable and exothermic in nature and. These results suggest that NaTiNTs-NH2 can be used as an alternative adsorbent material for the removal of anionic dyes in aqueous medium.

@article{WOS:000522731700059, abstract = {In the context of mitigating the harmful impacts caused to the environment, in particular the water pollution, by the indiscriminate discharge of anionic dyes, this work reports the use of sodium titanate nanotubes (NaTiNTs) functionalized with amine group (NaTiNTs-NH2), obtained from the reaction of nanotubes with 3-aminopro-pyltrimethoxysilane (APTMS), as adsorbent. The physicochemical characterizations showed that APTMS interacts covalently with the surface of NaTiNTs and the proposed adsorbent, NaTiNTs-NH2, retained morphological and crystalline structure after the functionalization. Remazol blue R (RB) was used as the model molecule of anionic dye and the adsorption tests were carried outin the aqueous solution, which showed that the matrix NaTiNTs-NH2 presents very high adsorption capacity of RB dye (435.68 +/- 6.05 mgg(-1)) and the process occurs at monolayer by chemisorption. The adsorption process is thermodynamically favorable and exothermic in nature and. These results suggest that NaTiNTs-NH2 can be used as an alternative adsorbent material for the removal of anionic dyes in aqueous medium.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS}, author = {Marques, Thalles M F and Sales, Debora A and Silva, Lucinaldo S and Bezerra, Roosevelt D S and Silva, Mateus S and Osajima, Josy A and Ferreira, Odair P and Ghosh, Anupama and Filho, Edson C Silva and Viana, Bartolomeu C and Matos, Jose M E}, biburl = {https://www.bibsonomy.org/bibtex/29ee28114d8f2b953f6e8b8225b3fd088/ppgfis_ufc_br}, doi = {10.1016/j.apsusc.2020.145659}, interhash = {a5e3607044a08d83556ecb2df1eee759}, intrahash = {9ee28114d8f2b953f6e8b8225b3fd088}, issn = {0169-4332}, journal = {APPLIED SURFACE SCIENCE}, keywords = {APTMS; Adsorption; Anionic dyes} nanotubes; titanate {Functionalized}, publisher = {ELSEVIER}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Amino-functionalized titanate nanotubes for highly efficient removal of anionic dye from aqueous solution}, tppubtype = {article}, volume = 512, year = 2020 }