· 논문명 : Photocatalytic  H2O2  production from water and air using porous organic polymers

· 저   자 : Bishal Boro, Nayeong Kim, Jae-Seung Kim, Ratul Paul, Yogendra Nailwal, Yuri Choi, Dong-Hwa Seo, 

               John Mondal*, Jungki Ryu*

· 게재지 : Journal of Colloid And Interface Science (2023, 652, 1784-1792)

· 초록

Producing hydrogen peroxide (H2O2) from H2O and O2 under visible light irradiation is a promising solar-to-chemical energy 

conversion technology. Hydrogen peroxide has versatile applications as a green oxidant and liquid energy carrier but has been 

produced through energy-intensive and complex anthraquinone processes. Herein, we report the rational design of efficient and 

stable porous organic polymer(POP) containing redox centers, anthraquinone photocatalyst (ANQ-POP) for solar H2O2 production.

ANQ-POP is readily synthesized with stable dioxin-linkages via efficient one-pot, transition-metal-free nucleophilic aromatic 

substitution reactions between 1,2,3,4,5,6,7,8-octafluoro-9,10-anthraquinone (OFANQ) and 2,3,6,7,10,11-hexahydroxytriphenylene

(HHTP). Exhibiting a fibrillar morphology,ANQ-POP boasts a high surface area of 380 m2·g-1 and demonstrates thermal stability. With

10 % ethanol, ANQ-POP yields an H2O2 production rate of 320 μmol g-1 under visible light irradiation. Moreover, ANQ-POP alone can 

efficiently produce H2O2 without any photosensitizers and cocatalysts. Density functional theory calculations reveal that the quinone

groups of the anthraquinone moieties can serve as redox centers for H2O2 production under light irradiation. Furthermore, unlike most

conventional photocatalysts, it can produce H2O2 using only water and air by catalyzing both oxygen reduction and evolution reactions

under light irradiation. Our findings provide an efficient, eco-friendly pathway for photocatalytic production of H2O2 under mild 

reaction conditions using a dioxinderived POP-based photocatalyst.