Interfacial electron transfer from nonstoichiometric cadmium sulfide nanoparticles to free and complexed copper(II) ions in 2-propanol
Tóm tắt
The interactions of free and complexed copper ions (Cu(ClO4)2, Cu(acac)2, and CuTPP) with the surface of nonstoichiometric CdS nanoparticles were monitored by EPR spectroscopy, recombination luminescence quenching and UV/VIS absorption spectroscopy. It was found that formation of a surface S-Cu bond takes place both in the case of Cu(ClO4)2 (free Cu2+ ions) and Cu(acac)2. This process is accompanied by thermal (dark) reduction of Cu2+ to Cu+, formation of a new energy level in the semiconductor bandgap and quenching of the original recombination luminescence of the nanoparticles. The quenching data obey a static interaction model, which confirms binding of copper ions onto the surface of CdS nanoparticles. In addition, Cu(acac)2 molecules can interact with Cd2+ ions on the surface of CdS, leading to a less effective quenching of the recombination luminescence of CdS, compared to that by free copper ions. In contrast to the behavior of Cu(ClO4)2 and Cu(acac)2, copper(II) tetraphenylporphyrin does not interact directly with the surface of CdS nanoparticles, leading to a very negligible quenching of the recombination luminescence of CdS (e tr − /h tr + ) nanoparticles.
Tài liệu tham khảo
citation_journal_title=Pure Appl. Chem.; citation_author=A Henglein; citation_volume=56; citation_publication_date=1984; citation_pages=1215-1215; citation_doi=10.1351/pac198456091215; citation_id=CR1
citation_title=Heterogeneous photochemical electron transfer; citation_publication_date=1989; citation_id=CR2; citation_author=M Grätzel; citation_publisher=CRC Press
citation_journal_title=Chem. Rev.; citation_author=P V Kamat; citation_volume=93; citation_publication_date=1993; citation_pages=267-267; citation_doi=10.1021/cr00017a013; citation_id=CR3
citation_journal_title=Chem. Rev.; citation_author=M A Fox, M T Dulay; citation_volume=93; citation_publication_date=1993; citation_pages=341-341; citation_doi=10.1021/cr00017a016; citation_id=CR4
citation_journal_title=J. Less-Common Met.; citation_author=Y F Lee, M Olshavsky, J Chrysochoos; citation_volume=148; citation_publication_date=1989; citation_pages=259-259; citation_doi=10.1016/0022-5088(89)90038-6; citation_id=CR5
citation_journal_title=J. Lumin.; citation_author=J Chrysochoos; citation_volume=48&49; citation_publication_date=1991; citation_pages=709-709; citation_doi=10.1016/0022-2313(91)90224-J; citation_id=CR6
citation_journal_title=Mol. Cryst. Liq. Cryst.; citation_author=J Chrysochoos; citation_volume=194; citation_publication_date=1991; citation_pages=247-247; citation_doi=10.1080/00268949108041171; citation_id=CR7
citation_journal_title=J. Phys. Chem.; citation_author=J Chrysochoos; citation_volume=96; citation_publication_date=1992; citation_pages=2868-2868; citation_doi=10.1021/j100186a017; citation_id=CR8
citation_journal_title=J. Lumin.; citation_author=null Bhamro, J Chrysochoos; citation_volume=60&61; citation_publication_date=1994; citation_pages=359-359; citation_doi=10.1016/0022-2313(94)90165-1; citation_id=CR9
citation_journal_title=Angew. Chem., Int. Ed. Engl.; citation_author=H Weller; citation_volume=32; citation_publication_date=1993; citation_pages=41-41; citation_doi=10.1002/anie.199300411; citation_id=CR10
citation_journal_title=Chem. Rev.; citation_author=P V Kamat; citation_volume=93; citation_publication_date=1993; citation_pages=267-267; citation_doi=10.1021/cr00017a013; citation_id=CR11
citation_journal_title=Advances in Photochemistry; citation_author=H Weller, A Eychmüller; citation_volume=20; citation_publication_date=1995; citation_pages=165-165; citation_id=CR12
citation_journal_title=J. Phys. Chem.; citation_author=A P Alivisatos; citation_volume=100; citation_publication_date=1996; citation_pages=13226-13226; citation_doi=10.1021/jp9535506; citation_id=CR13
citation_journal_title=Prog. Inorg. Chem.; citation_author=P V Kamat; citation_volume=44; citation_publication_date=1997; citation_pages=273-273; citation_id=CR14
citation_journal_title=J. Am. Chem. Soc.; citation_author=L Spanhel, M Haase, H Weller, A Henglein; citation_volume=109; citation_publication_date=1987; citation_pages=5649-5649; citation_doi=10.1021/ja00253a015; citation_id=CR15
citation_journal_title=J. Phys. Chem.; citation_author=K Sooklal, B S Cullum, S M Angel, C J Murthy; citation_volume=100; citation_publication_date=1996; citation_pages=4551-4551; citation_doi=10.1021/jp952377a; citation_id=CR16
citation_journal_title=Ber. Bunsenges. Phys. Chem.; citation_author=L Spanhel, H Weller, A Fojtik, A Henglein; citation_volume=91; citation_publication_date=1987; citation_pages=88-88; citation_doi=10.1002/bbpc.19870910204; citation_id=CR17
citation_journal_title=J. Phys. Chem.; citation_author=A Hässelbarth, A Eychmüller, R Eichberger, M Giersig, A Mews, H Weller; citation_volume=97; citation_publication_date=1993; citation_pages=5333-5333; citation_doi=10.1021/j100122a026; citation_id=CR18
citation_journal_title=Ber. Bunsenges. Phys. Chem.; citation_author=H Weller, U Koch, M Gutiérrez, A Henglein; citation_volume=88; citation_publication_date=1984; citation_pages=649-649; citation_doi=10.1002/bbpc.19840880715; citation_id=CR19
citation_journal_title=J. Phys. Chem.; citation_author=C F Hoener, K A Allan, A J Bard, A Campion, M A Fox, T E Mallouk, S E Webber, J M White; citation_volume=96; citation_publication_date=1992; citation_pages=3812-3812; citation_doi=10.1021/j100188a045; citation_id=CR20
citation_journal_title=J. Phys. Chem.; citation_author=H S Zhou, I Honma, H Komiyama, J W Haus; citation_volume=97; citation_publication_date=1993; citation_pages=895-895; citation_doi=10.1021/j100106a015; citation_id=CR21
citation_journal_title=Chem. Mater.; citation_author=H S Zhou, H Sasahara, I Honma, H Komiyama, J W Haus; citation_volume=6; citation_publication_date=1994; citation_pages=1534-1534; citation_doi=10.1021/cm00045a010; citation_id=CR22
citation_journal_title=J. Phys. Chem.; citation_author=I Bedja, P V Kamat; citation_volume=99; citation_publication_date=1995; citation_pages=9182-9182; citation_doi=10.1021/j100022a035; citation_id=CR23
citation_journal_title=J. Phys. Chem.; citation_author=Y Tian, T Newton, N A Kotov, D M Guldi, J H Fendler; citation_volume=100; citation_publication_date=1996; citation_pages=8927-8927; citation_doi=10.1021/jp951965l; citation_id=CR24
citation_journal_title=J. Phys. Chem.; citation_author=A Mews, A Eychmüller, M Giersig, D Schooss, H Weller; citation_volume=98; citation_publication_date=1994; citation_pages=934-934; citation_doi=10.1021/j100054a032; citation_id=CR25
citation_journal_title=J. Phys. Chem.; citation_author=V F Kamalov, R Little, S L Logunov, M A El-Sayed; citation_volume=100; citation_publication_date=1996; citation_pages=6381-6381; citation_doi=10.1021/jp953708m; citation_id=CR26
Kumar A and Kumar S 1996Chem. Lett. 711
citation_journal_title=Acc. Chem. Res.; citation_author=M L Steigerwald, L E Brus; citation_volume=23; citation_publication_date=1990; citation_pages=183-183; citation_doi=10.1021/ar00174a003; citation_id=CR28
citation_journal_title=J. Phys. Chem.; citation_author=R R Chandler, J L Coffer; citation_volume=95; citation_publication_date=1991; citation_pages=4-4; citation_doi=10.1021/j100154a002; citation_id=CR29
citation_journal_title=J. Phys. Chem.; citation_author=R R Chandler, J L Coffer, S J Atherton, P T Snowden; citation_volume=96; citation_publication_date=1992; citation_pages=2713-2713; citation_doi=10.1021/j100185a057; citation_id=CR30
citation_journal_title=Langmuir; citation_author=A V Isarov, J Chrysochoos; citation_volume=13; citation_publication_date=1997; citation_pages=3142-3142; citation_doi=10.1021/la960985r; citation_id=CR31
citation_journal_title=J. Mater. Chem.; citation_author=M Inoue, C Cruz-Vazquez, M B Inoue, Q Fernando; citation_volume=2; citation_publication_date=1992; citation_pages=761-761; citation_doi=10.1039/jm9920200761; citation_id=CR32
citation_journal_title=Synth. Metals; citation_author=M Inoue, C Cruz-Vazquez, M B Inoue, K W Nebesny, Q Fernando; citation_volume=55–57; citation_publication_date=1993; citation_pages=3748-3748; citation_doi=10.1016/0379-6779(93)90508-T; citation_id=CR33
citation_journal_title=J. Mater. Chem.; citation_author=H Grijalva, M Inoue, S Boggavarapu, P Calvert; citation_volume=6; citation_publication_date=1996; citation_pages=1157-1157; citation_doi=10.1039/jm9960601157; citation_id=CR34
citation_journal_title=J. Chem. Phys.; citation_author=R Rossetti, R Hull, J M Gibson, L E Brus; citation_volume=82; citation_publication_date=1985; citation_pages=552-552; citation_doi=10.1063/1.448727; citation_id=CR35
citation_title=Optical properties in semiconductors; citation_publication_date=1971; citation_id=CR36; citation_author=J J Pankove; citation_publisher=Prentice-Hall
citation_journal_title=J. Chem. Phys.; citation_author=Y Wang, A Suna, W Mahler, R Kasowski; citation_volume=87; citation_publication_date=1987; citation_pages=7315-7315; citation_doi=10.1063/1.453325; citation_id=CR37
Barnett G H, Hudson M F and Smith K M 1973Tetrahedron Lett. 2887
citation_journal_title=J. Inorg. Nucl. Chem.; citation_author=A D Adler, F R Longo, F Kampas, J Kim; citation_volume=32; citation_publication_date=1970; citation_pages=2443-2443; citation_doi=10.1016/0022-1902(70)80535-8; citation_id=CR39
citation_inbook_title=Biological application of electron spin resonance; citation_publication_date=1972; citation_pages=411-411; citation_id=CR40; citation_author=T Vänngard; citation_publisher=Wiley-Interscience
citation_inbook_title=The porphyrins; citation_publication_date=1979; citation_pages=355-355; citation_id=CR41; citation_author=W C Lin; citation_publisher=Academic Press
citation_journal_title=J. Chem. Phys.; citation_author=J M Assour; citation_volume=43; citation_publication_date=1965; citation_pages=2477-2477; citation_doi=10.1063/1.1697147; citation_id=CR42
citation_inbook_title=Electron spin resonance of metal complexes; citation_publication_date=1969; citation_pages=143-143; citation_id=CR43; citation_author=P T Manoharan; citation_author=M T Rogers; citation_publisher=Plenum Press
citation_journal_title=Inorg. Chem.; citation_author=J P Fackler, F A Cotton, D W Barnum; citation_volume=2; citation_publication_date=1963; citation_pages=97-97; citation_doi=10.1021/ic50005a027; citation_id=CR44
citation_journal_title=J. Phys. Chem.; citation_author=Y Rosenwaks, L Burstein, null Shapira, null Yoram, D Huppert; citation_volume=94; citation_publication_date=1990; citation_pages=6842-6842; citation_doi=10.1021/j100380a055; citation_id=CR45
citation_journal_title=J. Phys. Chem.; citation_author=D Benjamin, D Huppert; citation_volume=92; citation_publication_date=1988; citation_pages=4676-4676; citation_doi=10.1021/j100327a024; citation_id=CR46
citation_journal_title=J. Chem. Soc., Faraday Trans. 1; citation_author=J J Ramsden, M Grätzel; citation_volume=80; citation_publication_date=1984; citation_pages=919-919; citation_doi=10.1039/f19848000919; citation_id=CR47
citation_journal_title=J. Phys. Chem.; citation_author=P V Kamat, N M Dimitriević, R W Fessenden; citation_volume=91; citation_publication_date=1987; citation_pages=396-396; citation_doi=10.1021/j100286a029; citation_id=CR48
citation_title=Encyclopedia of semiconductor technology; citation_publication_date=1984; citation_id=CR49; citation_author=M Grayson; citation_publisher=John Wiley & Sons