NDLI: Photocatalytic oxidation of water by silica-supported tris(4,4'-dialkyl-2,2'-bipyridyl)ruthenium polymeric sensitizers and colloidal iridium oxide

Please wait, while we are loading the content...

Photocatalytic oxidation of water by silica-supported tris(4,4'-dialkyl-2,2'-bipyridyl)ruthenium polymeric sensitizers and colloidal iridium oxide

Content Provider	Semantic Scholar
Author	Hara, Michikazu Lean, John Thomas Mallouk, Thomas E.
Copyright Year	2001
Abstract	A cationic polymer containing tris(4,4‘-dialkyl-2,2‘-bipyridyl)ruthenium groups linked by aliphatic spacers was studied as a photosensitizer for the catalytic oxidation of water in the presence of colloidal IrO2. The polymer−colloidal IrO2 system photocatalytically reduced persulfate, a sacrificial electron acceptor, and oxidized water to O2 and H+ in solutions that were buffered at pH 6 by Na2SiF6 and NaHCO3. The quantum efficiency for O2 evolution and turnover number with respect to the Ru complex in the polymer reached 25% and 100, respectively. The polymer gradually aggregated in the Na2SiF6−NaHCO3 buffer during the reaction, and this aggregation gradually decreased the photocatalytic activity of the system. Heterogeneous photosystems composed of this polymer and colloidal IrO2 were also prepared using 70 nm diameter SiO2 particles as supports. Photocatalysts made by the sequential loading of colloidal IrO2 and the photosensitizer polymer onto SiO2 particles at ca. pH 6 had much lower photocatalytic a...
Starting Page	4668
Ending Page	4675
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1021/cm0104811
Alternate Webpage(s)	http://research.chem.psu.edu/mallouk/articles/cm0104811.pdf
Alternate Webpage(s)	https://doi.org/10.1021/cm0104811
Volume Number	13
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in