Mesoporous resin nanobowls with optimized donor-acceptor conjugation for highly efficient photocatalytic hydrogen peroxide production

被引：57

作者：

Yuan, Ling ^{[1
]}

Zhang, Chaoqi ^{[1
]}

Wang, Jing ^{[1
]}

Liu, Chao ^{[1
]}

Yu, Chengzhong ^{[1
,2
]}

机构：

[1] East China Normal Univ, Sch Chem & Mol Engn, Shanghai 200241, Peoples R China

[2] Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia

来源：

NANO RESEARCH | 2021年 / 14卷 / 09期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

donor-acceptor couples; mesoporous; resin; photocatalysts; hydrogen peroxide; GRAPHITIC CARBON NITRIDE; H2O2; PRODUCTION; O-2; REDUCTION; DEGRADATION; OXYGEN; WATER; OXIDE;

D O I：

10.1007/s12274-021-3517-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Design of metal-free photocatalysts with customized chemical structure and nano-architecture is promising for photocatalytic hydrogen peroxide (H2O2) production. Herein, for the first time, mesoporous resorcinol-formaldehyde (MRF) nanobowls with optimized benzenoid-quinoid donor-acceptor (D-A) couples have been synthesized via an assembly-hydrothermal-etching process as high-performance photocatalysts for H2O2 production in a sacrificial agent-free system. At the hydrothermal temperature of similar to 250 degrees C, MRF-250 exhibits optimized structural features including a large surface area, suitable D-A couple ratio, enhanced light absorption, charge-hole separation and mass transfer. Thus, MRF-250 shows an unexpected H2O2 yield of 19.4 mM center dot g(-1)center dot h(-1) in pure water, outperforming other RF samples prepared under different conditions and superior to most reported metal-free photocatalysts without the aid of sacrificial agents. Our work paves the way towards the elaborate design of highly effective metal-free photocatalysts for H2O2 production.

引用

页码：3267 / 3273

页数：7

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