Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing
Аутори
Marković, SmiljaStojković Simatović, Ivana
Ahmetović, Sanita
Veselinović, Ljiljana
Stojadinović, Stevan
Rac, Vladislav
Škapin, Srečo Davor
Uskoković, Dragan
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
ZnO/CTAB powder was prepared by microwave processing of a precipitate with the aid of cetyltrimethylammonium bromide (CTAB). The effects of CTAB on the crystal structure, morphology, optical and photo(electro)catalytic properties of ZnO particles were studied. The results showed that CTAB did not influenced crystal structure or phase purity of ZnO. However, even low concentration of CTAB vary particles morphology; cone-like particles were prepared by processing without CTAB, while a mixture of spheroidal and plate-like ZnO particles were produced when 0.001 M CTAB was used. It was found that synthesized ZnO powders have 0.10 eV lower band gap energy then bulk ZnO (3.37 eV). A high photocatalytic activity for decolorization of methylene blue water solution was established after 2 h of sunlight irradiation; efficiency was 100 and 67% for ZnO/CTAB and ZnO, respectively. Electrochemical test showed faster oxygen evolution kinetics when ZnO/CTAB was used as anode material. Enhanced photo(el...ectro)catalytic activities of ZnO/CTAB particles are attributed to better absorption of visible light due to both, larger dimensions and surface sensitization by CTAB.
Кључне речи:
ZnO powders / CTAB / microwave processing / photocatalytic activityИзвор:
Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade, 2018, 237-240Издавач:
- Belgrade : Society of Physical Chemists of Serbia
Финансирање / пројекти:
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Marković, Smilja AU - Stojković Simatović, Ivana AU - Ahmetović, Sanita AU - Veselinović, Ljiljana AU - Stojadinović, Stevan AU - Rac, Vladislav AU - Škapin, Srečo Davor AU - Uskoković, Dragan PY - 2018 UR - https://dais.sanu.ac.rs/123456789/4561 AB - ZnO/CTAB powder was prepared by microwave processing of a precipitate with the aid of cetyltrimethylammonium bromide (CTAB). The effects of CTAB on the crystal structure, morphology, optical and photo(electro)catalytic properties of ZnO particles were studied. The results showed that CTAB did not influenced crystal structure or phase purity of ZnO. However, even low concentration of CTAB vary particles morphology; cone-like particles were prepared by processing without CTAB, while a mixture of spheroidal and plate-like ZnO particles were produced when 0.001 M CTAB was used. It was found that synthesized ZnO powders have 0.10 eV lower band gap energy then bulk ZnO (3.37 eV). A high photocatalytic activity for decolorization of methylene blue water solution was established after 2 h of sunlight irradiation; efficiency was 100 and 67% for ZnO/CTAB and ZnO, respectively. Electrochemical test showed faster oxygen evolution kinetics when ZnO/CTAB was used as anode material. Enhanced photo(electro)catalytic activities of ZnO/CTAB particles are attributed to better absorption of visible light due to both, larger dimensions and surface sensitization by CTAB. PB - Belgrade : Society of Physical Chemists of Serbia C3 - Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade T1 - Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing SP - 237 EP - 240 UR - https://hdl.handle.net/21.15107/rcub_dais_4561 ER -
@conference{ author = "Marković, Smilja and Stojković Simatović, Ivana and Ahmetović, Sanita and Veselinović, Ljiljana and Stojadinović, Stevan and Rac, Vladislav and Škapin, Srečo Davor and Uskoković, Dragan", year = "2018", abstract = "ZnO/CTAB powder was prepared by microwave processing of a precipitate with the aid of cetyltrimethylammonium bromide (CTAB). The effects of CTAB on the crystal structure, morphology, optical and photo(electro)catalytic properties of ZnO particles were studied. The results showed that CTAB did not influenced crystal structure or phase purity of ZnO. However, even low concentration of CTAB vary particles morphology; cone-like particles were prepared by processing without CTAB, while a mixture of spheroidal and plate-like ZnO particles were produced when 0.001 M CTAB was used. It was found that synthesized ZnO powders have 0.10 eV lower band gap energy then bulk ZnO (3.37 eV). A high photocatalytic activity for decolorization of methylene blue water solution was established after 2 h of sunlight irradiation; efficiency was 100 and 67% for ZnO/CTAB and ZnO, respectively. Electrochemical test showed faster oxygen evolution kinetics when ZnO/CTAB was used as anode material. Enhanced photo(electro)catalytic activities of ZnO/CTAB particles are attributed to better absorption of visible light due to both, larger dimensions and surface sensitization by CTAB.", publisher = "Belgrade : Society of Physical Chemists of Serbia", journal = "Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade", title = "Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing", pages = "237-240", url = "https://hdl.handle.net/21.15107/rcub_dais_4561" }
Marković, S., Stojković Simatović, I., Ahmetović, S., Veselinović, L., Stojadinović, S., Rac, V., Škapin, S. D.,& Uskoković, D.. (2018). Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing. in Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade Belgrade : Society of Physical Chemists of Serbia., 237-240. https://hdl.handle.net/21.15107/rcub_dais_4561
Marković S, Stojković Simatović I, Ahmetović S, Veselinović L, Stojadinović S, Rac V, Škapin SD, Uskoković D. Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing. in Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade. 2018;:237-240. https://hdl.handle.net/21.15107/rcub_dais_4561 .
Marković, Smilja, Stojković Simatović, Ivana, Ahmetović, Sanita, Veselinović, Ljiljana, Stojadinović, Stevan, Rac, Vladislav, Škapin, Srečo Davor, Uskoković, Dragan, "Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing" in Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade (2018):237-240, https://hdl.handle.net/21.15107/rcub_dais_4561 .