Highly-efficient photocatalytic hydrogen evolution triggered by spatial confinement effects over co-crystal templated boron-doped carbon nitride hollow nanotubes

Dai, Wei1,2; Wang, Ranhao2; Chen, Zhijie2; Deng, Shimao2; Huang, Changzhu2; Luo, Wenjun1; Chen, Hong2

2023-02-01

10.1039/d3ta00199g

JOURNAL OF MATERIALS CHEMISTRY A   影响因子和分区

2050-7488

2050-7496

Conversion of solar energy into hydrogen energy through photocatalytic water splitting is vital for addressing the energy crisis problem and achieving carbon neutrality. Herein, boron-doped carbon nitride (BCN) hollow nanotubes have been successfully fabricated via a boric acid-assisted co-crystallization templating approach. The as-synthesized BCN hollow nanotubes with the optimal boron doping concentration show a significantly improved photocatalytic hydrogen evolution efficiency of 3.0658 mmol g(-1) h(-1), which is 7.2 times higher than that of the well-explored bulk C3N4. The electron density is redistributed as caused by electron-deficient boron dopants, leading to extended visible light capture and accelerated charge transport. The remarkable performance enhancement is attributed to the overall synergetic effects of the unique spatial confinement in hollow nanotubes and exceptionally modulated band structure. This work demonstrates an efficient strategy to enhance photocatalytic activity via synergetic morphology engineering and band structure engineering, which paves the way for engineering carbon nitride materials for energy and environmental catalysis applications.

SCI ; EI

英语

通讯

Foundation of Shenzhen Science, Technology and Innovation Commission (SSTIC)["JCYJ20200109141625078","2020231312","JCYJ20190809144409460"] ; Natural Science Funds for Distinguished Young Scholar of Guangdong Province, China[2020B151502094] ; National Natural Science Foundation of China[21777045]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000953948000001

ROYAL SOC CHEMISTRY

20231613895024

Band structure ; Boric acid ; Energy policy ; Nanotubes ; Photocatalytic activity ; Solar energy ; Solar power generation

Energy Policy:525.6 ; Solar Power:615.2 ; Solar Energy and Phenomena:657.1 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Inorganic Compounds:804.2 ; Solid State Physics:933 ; Crystalline Solids:933.1

Web of Science

1.China Univ Geosci, Fac Mat Sci & Chem, 68 Jincheng St, Wuhan 430078, Hubei, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen Key Lab Interfacial Sci & Engn Mat, State Environm Protect Key Lab Integrated Surface, Sch Environm Sci & Engn,Guangdong Prov Key Lab Soi, Shenzhen 518055, Peoples R China

Dai, Wei,Wang, Ranhao,Chen, Zhijie,et al. Highly-efficient photocatalytic hydrogen evolution triggered by spatial confinement effects over co-crystal templated boron-doped carbon nitride hollow nanotubes[J]. JOURNAL OF MATERIALS CHEMISTRY A,2023,11(14):7584-7595.

Dai, Wei.,Wang, Ranhao.,Chen, Zhijie.,Deng, Shimao.,Huang, Changzhu.,...&Chen, Hong.(2023).Highly-efficient photocatalytic hydrogen evolution triggered by spatial confinement effects over co-crystal templated boron-doped carbon nitride hollow nanotubes.JOURNAL OF MATERIALS CHEMISTRY A,11(14),7584-7595.

Dai, Wei,et al."Highly-efficient photocatalytic hydrogen evolution triggered by spatial confinement effects over co-crystal templated boron-doped carbon nitride hollow nanotubes".JOURNAL OF MATERIALS CHEMISTRY A 11.14(2023):7584-7595.