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Carbon Doping of TiO<sub>2</sub> for Visible Light Photo Catalysis - A review
Palanivelu, K.,Im, Ji-Sun,Lee, Young-Seak Korean Carbon Society 2007 Carbon Letters Vol.8 No.3
The field of photocatalysis is one of the fastest growing areas both in research and commercial fields. Titanium dioxide is the most investigated semi-conductor material for the photocatalysis applications. Research to achieve $TiO_2$ visible light activation has drawn enormous attentions because of its potential to use solar light. This paper reviews the attempts made to extend its visible photocatalytic activity by carbon doping. Various approaches adopted to incorporate carbon to $TiO_2$ are summarized highlighting the major developments in this active research field. Theoretical features on carbon doping are also presented. Future scenario in the rapidly developing and exciting area is outlined for practical applications with solar light.
Carbon Doping of TiO2 for Visible Light Photo Catalysis - A review
K. Palanivelu,임지선,Young-Seak Lee 한국탄소학회 2007 Carbon Letters Vol.8 No.3
The field of photocatalysis is one of the fastest growing areas both in research and commercial fields. Titanium dioxide isthe most investigated semi-conductor material for the photocatalysis applications. Research to achieve TiO2 visible lightactivation has drawn enormous attentions because of its potential to use solar light. This paper reviews the attempts made toextend its visible photocatalytic activity by carbon doping. Various approaches adopted to incorporate carbon to TiO2 aresumarized highlighting the major developments in this active research field. Theoretical features on carbon doping are alsopresented. Future scenario in the rapidly developing and exciting area is outlined for practical applications with solar light.
Carbon Doping of TiO<SUB>2</SUB> for Visible Light Photo Catalysis - A review
K. Palanivelu,Ji-Sun Im,Young-Seak Lee 한국탄소학회 2007 Carbon Letters Vol.8 No.3
The field of photocatalysis is one of the fastest growing areas both in research and commercial fields. Titanium dioxide is the most investigated semi-conductor material for the photocatalysis applications. Research to achieve TiO2 visible light activation has drawn enormous attentions because of its potential to use solar light. This paper reviews the attempts made to extend its visible photocatalytic activity by carbon doping. Various approaches adopted to incorporate carbon to TiO2 are summarized highlighting the major developments in this active research field. Theoretical features on carbon doping are also presented. Future scenario in the rapidly developing and exciting area is outlined for practical applications with solar light.
Sureshkumar, Palanivelu,Srivastava, Anoop Kumar,Jeong, Seok Jin,Kim, Miyoung,Jo, Eun Mi,Lee, Seung Hee,Lee, Young Hee American Scientific Publishers 2009 Journal of Nanoscience and Nanotechnology Vol.9 No.8
<P>An anomalous electrokinetic dispersion after contraction of carbon nanotube (CNT) cluster suspended in a vertically aligned nematic liquid crystal (LC) cell is demonstrated. CNT aggregates were firstly aligned toward the field line by dielectrophoretic (DEP) torque and secondly they were elongated above a certain threshold field due to interaction between the induced dipole moment of CNTs and external ac electric field. Below a certain breakdown field, the original morphology of the CNT aggregates was restored after the removal of the field where the elongation was fully reversible. Above breakdown electric field, CNT aggregates were ruptured and fragmented into small pieces and consequently CNTs were well dispersed in LC medium.</P>
Preparation and characterization of carbon covered TiO2 using sucrose for solar photodegradation
Seok-Min Yun,K. Palanivelu,김영호,Phil-Hyun Kang,Young-Seak Lee 한국공업화학회 2008 Journal of Industrial and Engineering Chemistry Vol.14 No.5
Various attempts have been made to capture visible light of solar energy for TiO2 activation in photocatalytic degradation and other applications. In this present work we made an attempt on the synthesis and characterization of anatase TiO2 with carbon for gaining importance for this purpose. Carbon covered TiO2 photocatalyst was successfully prepared by an in situ process employing sucrose as carbon source and H2SO4 as dehydrating agent. The prepared materials were thermally post treated at 723 K. The resulting C-covered TiO2 catalyst materials were characterized by SEM, EDX, FT-IR, XRD, UV-DRS and XPS. The C-covered samples show UV shift to longer region compared to pristine TiO2. The materials were tested for its solar light induced degradation of methylene blue dye and found to be active. The prepared C-covered titania catalysts can be used for degradation of dyes and other pollutants using solar light.