Accelerating NADH oxidation and hydrogen production with mid-gap states of nitrogen-rich carbon nitride photocatalyst

被引：17

作者：

Bhoyar, Toshali ^{[1
]}

Kim, Dong Jin ^{[2
]}

Abraham, B. Moses ^{[3
]}

Gupta, Akanksha ^{[4
]}

Maile, Nagesh ^{[5
]}

Manwar, Nilesh R. ^{[6
]}

Tonda, Surendar ^{[5
]}

Vidyasagar, Devthade ^{[7
]}

Umare, Suresh S. ^{[1
]}

机构：

[1] Visvesvaraya Natl Inst Technol VNIT, Mat & Catalysis Lab, Nagpur 440010, India

[2] Kyungpook Natl Univ, Sch Energy Engn, Daegu 41566, South Korea

[3] Indian Inst Technol Kanpur, Dept Chem Engn, Kanpur 208016, India

[4] Bar Ilan Univ, Dept Chem, IL-5290002 Ramat Gan, Israel

[5] Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea

[6] Inst Chem Technol, Dept Chem, Mumbai 400019, India

[7] Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea

来源：

ISCIENCE | 2022年 / 25卷 / 12期

关键词：

ENERGY-CONVERSION; G-C3N4; WATER;

D O I：

10.1016/j.isci.2022.105567

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Regeneration of electron carriers such as NAD(+)/NADH is highly desirable and essential for enzymatic conversions. Here, we demonstrate a sustainable strategy for the regeneration of NAD(+) as an electron carrier via photon-assisted heterogeneous catalysis. For this, a mid-gap state induced nitrogen-rich polymeric carbon nitride (NPCN) catalyst was synthesized by an additive-assisted thermal copolymerization. Utilizing NPCN as a photocatalyst presented NADH photooxidation efficiency of over 98% and a high hydrogen production rate of 11.18 mmolg(-1)h(-1) with an apparent quantum yield of 9.16% (lambda = 420 nm), outperforming other state-of-art metal-free photocatalysts. The experimental and theoretical simulations suggest that mid-gap states in NPCN catalyst are main platform for charge-carrier separation that enhances the overall photocatalytic performance.

引用

页数：19

共 53 条

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