화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.69, 48-56, January, 2019
DOI10.1016/j.jiec.2018.09.002  Export Citation
Bio-synthesis of finely distributed Ag nanoparticle-decorated TiO2 nanorods for sunlight-induced photoelectrochemical water splitting
Sandesh Y. Sawant, Mostafa S. Sayed, Thi Hiep Han, Md Rezaul Karim, Jae-Jin Shim, and Moo Hwan Cho†
  • School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 38541, South Korea
E-mail:
Ag nanoparticles (NPs) grafted on TiO2 nanorods (NRs) using electroactive biofilms (EABs) were assessed as photoanodes for water splitting under solar light irradiance. EABs-assisted bio-reduction leads to the uniform decoration of spherical Ag NPs (10.40 nm) and stronger attachment to the Ag.TiO2 interface due to the prior adsorption of Ag+ ions. Plasmonic interaction of Ag NPs with TiO2 NRs showed stronger adsorption in visible range due to surface plasmon resonance. Compared to TiO2 NRs, Ag.TiO2 NRs/FTO exhibited 8 times higher current density under solar light irradiation due to enhanced visible light absorption, SPR effect, and efficient electron-hole separation.
Keywords:Hydrogen production;Water oxidation;Photoanode;Electroactive biofilms;Bio-reduction
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