Thermal stability of CT-complexes formed at the surface of anatase nanoparticles
Аутори
Savić, Tatjana D.Čomor, Mirjana
Janković, Ivana A.
Rakić, Vesna M.
Abazović, Nadica
Carević, Milica
Конференцијски прилог (Објављена верзија)
,
Society of Physical Chemists of Serbia
Метаподаци
Приказ свих података о документуАпстракт
The surface modification of nanocrystalline TiO2particles (45 Å) with salicylate-type ligands consisting of anextended aromatic ring system, specifically 1-hydroxy-2-naphthoicacid(1H2NA)and 1,4-dihydroxy-2-naphthoicacid(1,4DH2NA), was found to alter the optical properties of nanoparticles in a similar way to salicylic acid(2HBA).The formation of the inner-sphere charge-transfer(CT) complexes results in a red shift of the semiconductor absorptiononsetcompared to unmodified nanocrystallitesand a reduction in the band gap upon the increase in the electron delocalization when including an additional ring.From absorption measurements of CT complexes in methanol/water=90/10 solutions, stability constants in the order of 103M-1havebeen determined at pH 2.Thermal stability of CT-complexes was investigated by using TPD analysis (TG/DTA/MS).
Извор:
Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry, 2016, 549-552Издавач:
- Society of Physical Chemists of Serbia
Финансирање / пројекти:
- Утицај величине, облика и структуре наночестица на њихова својства и својства нанокомпозита (RS-MESTD-Basic Research (BR or ON)-172056)
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
Напомена:
- Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry; Belgrade (Serbia); 26-30 September 2016
Колекције
Институција/група
VinčaTY - CONF AU - Savić, Tatjana D. AU - Čomor, Mirjana AU - Janković, Ivana A. AU - Rakić, Vesna M. AU - Abazović, Nadica AU - Carević, Milica PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/9216 AB - The surface modification of nanocrystalline TiO2particles (45 Å) with salicylate-type ligands consisting of anextended aromatic ring system, specifically 1-hydroxy-2-naphthoicacid(1H2NA)and 1,4-dihydroxy-2-naphthoicacid(1,4DH2NA), was found to alter the optical properties of nanoparticles in a similar way to salicylic acid(2HBA).The formation of the inner-sphere charge-transfer(CT) complexes results in a red shift of the semiconductor absorptiononsetcompared to unmodified nanocrystallitesand a reduction in the band gap upon the increase in the electron delocalization when including an additional ring.From absorption measurements of CT complexes in methanol/water=90/10 solutions, stability constants in the order of 103M-1havebeen determined at pH 2.Thermal stability of CT-complexes was investigated by using TPD analysis (TG/DTA/MS). PB - Society of Physical Chemists of Serbia C3 - Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry T1 - Thermal stability of CT-complexes formed at the surface of anatase nanoparticles SP - 549 EP - 552 UR - https://hdl.handle.net/21.15107/rcub_vinar_9216 ER -
@conference{ author = "Savić, Tatjana D. and Čomor, Mirjana and Janković, Ivana A. and Rakić, Vesna M. and Abazović, Nadica and Carević, Milica", year = "2016", abstract = "The surface modification of nanocrystalline TiO2particles (45 Å) with salicylate-type ligands consisting of anextended aromatic ring system, specifically 1-hydroxy-2-naphthoicacid(1H2NA)and 1,4-dihydroxy-2-naphthoicacid(1,4DH2NA), was found to alter the optical properties of nanoparticles in a similar way to salicylic acid(2HBA).The formation of the inner-sphere charge-transfer(CT) complexes results in a red shift of the semiconductor absorptiononsetcompared to unmodified nanocrystallitesand a reduction in the band gap upon the increase in the electron delocalization when including an additional ring.From absorption measurements of CT complexes in methanol/water=90/10 solutions, stability constants in the order of 103M-1havebeen determined at pH 2.Thermal stability of CT-complexes was investigated by using TPD analysis (TG/DTA/MS).", publisher = "Society of Physical Chemists of Serbia", journal = "Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry", title = "Thermal stability of CT-complexes formed at the surface of anatase nanoparticles", pages = "549-552", url = "https://hdl.handle.net/21.15107/rcub_vinar_9216" }
Savić, T. D., Čomor, M., Janković, I. A., Rakić, V. M., Abazović, N.,& Carević, M.. (2016). Thermal stability of CT-complexes formed at the surface of anatase nanoparticles. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry Society of Physical Chemists of Serbia., 549-552. https://hdl.handle.net/21.15107/rcub_vinar_9216
Savić TD, Čomor M, Janković IA, Rakić VM, Abazović N, Carević M. Thermal stability of CT-complexes formed at the surface of anatase nanoparticles. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry. 2016;:549-552. https://hdl.handle.net/21.15107/rcub_vinar_9216 .
Savić, Tatjana D., Čomor, Mirjana, Janković, Ivana A., Rakić, Vesna M., Abazović, Nadica, Carević, Milica, "Thermal stability of CT-complexes formed at the surface of anatase nanoparticles" in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry (2016):549-552, https://hdl.handle.net/21.15107/rcub_vinar_9216 .