Noble-metal-free dye-sensitized selective oxidation of methane to methanol with green light(550 nm)  

作　　者：Xingyang Wu Yi Zeng Hangchen Liu Jiaqing Zhao Tierui Zhang Song Ling Wang 

机构地区：[1]China-UK Low Carbon College,Shanghai Jiao Tong University,Shanghai,200240,China [2]School of Environmental Science and Engineering,Shanghai Jiao Tong University,Shanghai,200240,China [3]Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing,100190,China [4]Shanghai Institute of Pollution Control and Ecological Security,Shanghai,200092,China

出　　处：《Nano Research》2021年第12期4584-4590,共7页纳米研究（英文版）

基　　金：This work was sponsored by Shanghai Pujiang Program(No.19PJ1405200);the Startup Fund for Youngman Research at SJTU(SFYR at SJTU,No.WF220516003)。

摘　　要：Developing low-energy input route for conversion of methane(CH_(4))to value-added methanol(CH_(3)OH)at room temperature is important in environment and industry.Bonding in electron donor-acceptor hybrid can potentially promote charge transfer and photocatalytic efficiency of CH_(4) conversion.Herein,bonding in electron donor rhodamine B(RhB)-acceptor(TiO_(2))hybrid(RhB/TiO_(2))significantly promotes the selectivity of photocatalytic oxidation of CH4 to CH3OH and utilization of visible light(low-energy photons)at ambient condition.Even under green light irradiation(λ=550 nm),the noble-metal-free RhB/TiO_(2) hybrid synthesized presents enhanced oxidation of CH4 to CH_(3)OH with a generation rate of 143µmol·g^(−1)·h^(−1) and selectivity of 94%.This work demonstrates the possibility and feasibility of noble-metal-free catalysts for activating CH4 under visible light at room temperature.

关 键 词：PHOTOCATALYSIS solar energy dye sensitization methane oxidation METHANOL 

分 类 号：O64[理学—物理化学]