TY - JOUR
T1 - Thenoyltrifluoroacetone (TTA)-Carbon Dot/Aerogel Fluorescent Sensor for Lanthanide and Actinide Ions
AU - Dolai, Susmita
AU - Bhunia, Susanta Kumar
AU - Zeiri, Leila
AU - Paz-Tal, Ofra
AU - Jelinek, Raz
N1 - Funding Information: *E-mail: [email protected] (O.P.-T.). *E-mail: [email protected] (R.J.). ORCID Raz Jelinek: 0000-0002-0336-1384 Present Address ∥Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 3200003, Israel (S.K.B.) Author Contributions The manuscript was written through contributions of all authors. All authors have given approval to the final version of the manuscript. Funding This research was supported by the Pazi Foundation, grant number 285-17. Notes The authors declare no competing financial interest. Funding Information: Dr. Susanta Kumar Bhunia is grateful to the Planning and Budgeting Committee (PBC) of the Israeli Council for Higher Education for an Outstanding Post-Doctoral Fellowship. Publisher Copyright: © 2017 American Chemical Society.
PY - 2017/12/31
Y1 - 2017/12/31
N2 - Contamination of groundwater with radioactive substances comprising actinides and lanthanides is a significant environmental hazard and thus the development of selective, sensitive, and easy-to-apply sensors for water-soluble actinide and lanthanide ions is highly sought. We constructed a new selective fluorescent sensor for UO22+, Sm3+, and Eu3+ based on a carbon dot (C-dot)-aerogel hybrid prepared through in situ carbonization of 2-thenoyltrifluoroacetone (TTA), a high-affinity heavy metal chelator. The TTA-C-dot-aerogel enabled the detection of UO22+ ions, which induced a significant red fluorescence shift, whereas Eu3+ and particularly Sm3+ ions gave rise to pronounced fluorescence quenching. Importantly, the lanthanide/actinide ion-selective TTA-C-dots could be synthesized only in situ inside the aerogel pores, indicating the crucial role of the aerogel host matrix both in enabling the formation of the C-dots and in promoting the adsorption and interactions of the lanthanide and actinide metal ions with the embedded C-dots.
AB - Contamination of groundwater with radioactive substances comprising actinides and lanthanides is a significant environmental hazard and thus the development of selective, sensitive, and easy-to-apply sensors for water-soluble actinide and lanthanide ions is highly sought. We constructed a new selective fluorescent sensor for UO22+, Sm3+, and Eu3+ based on a carbon dot (C-dot)-aerogel hybrid prepared through in situ carbonization of 2-thenoyltrifluoroacetone (TTA), a high-affinity heavy metal chelator. The TTA-C-dot-aerogel enabled the detection of UO22+ ions, which induced a significant red fluorescence shift, whereas Eu3+ and particularly Sm3+ ions gave rise to pronounced fluorescence quenching. Importantly, the lanthanide/actinide ion-selective TTA-C-dots could be synthesized only in situ inside the aerogel pores, indicating the crucial role of the aerogel host matrix both in enabling the formation of the C-dots and in promoting the adsorption and interactions of the lanthanide and actinide metal ions with the embedded C-dots.
UR - http://www.scopus.com/inward/record.url?scp=85049774174&partnerID=8YFLogxK
U2 - 10.1021/acsomega.7b01883
DO - 10.1021/acsomega.7b01883
M3 - Article
SN - 2470-1343
VL - 2
SP - 9288
EP - 9295
JO - ACS Omega
JF - ACS Omega
IS - 12
ER -
