In situ synthesis of a novel Mn3 O4 /g-C3 N4 p-n heterostructure photocatalyst for water splitting

Journal of Colloid and Interface Science
Yuanyuan LiZhenduo Cui

Abstract

Designing high-efficiency photocatalyst for photocatalytic water splitting is a considerable challenge. Herein, a new Mn3O4/g-C3N4 p-n heterostructure photocatalyst is prepared by an in-situ growth method. The introduction of Mn3O4 can enhance light absorption ability of g-C3N4. The Mn3O4/g-C3N4 photocatalyst exhibits outstanding photocatalytic activity for hydrogen evolution reaction (HER) efficiency of ~2700 μmol g-1h-1 at λ > 420 nm. For the separate reactions of H2 evolution and O2 evolution under simulated sunlight, the efficiencies of Mn3O4/g-C3N4 heterostructure photocatalyst are 3300 μmol g-1h-1 and 654 μmol g-1h-1, respectively. The p-n junction is also capable of catalyzing the overall water splitting reaction to generate H2 and O2 products in a stoichiometric molar ratio of 2:1. The formation of electric field in p-n Mn3O4/g-C3N4 junction promotes electron transfer and improves photocatalytic performance.

References

Nov 11, 2008·Nature Materials·Xinchen WangMarkus Antonietti
Aug 13, 2015·Advanced Materials·Peng ZhangJinlong Gong
Aug 8, 2019·Advanced Materials·Lei TangXinhe Bao
Oct 22, 2019·Journal of Environmental Management·Yanan XuHaifeng Tian
Dec 24, 2019·Journal of Colloid and Interface Science·Elham Vesali-KermaniSrabanti Ghosh
May 7, 2020·Journal of Colloid and Interface Science·Baorong Duan, Li Mei
May 29, 2020·Journal of Colloid and Interface Science·Beibei WangJianmei Lu
Aug 11, 2020·Journal of Colloid and Interface Science·Changcun HanZhifeng Liu

❮ Previous
Next ❯

Citations

Oct 28, 2021·ACS Applied Materials & Interfaces·Junyu ZhangQing Jiang

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.