Constructing Pd-N interactions in Pd/g-C3N4 to improve the charge dynamics for efficient photocatalytic hydrogen evolution

Xiao, Xudong1; Lin, Siying1; Zhang, Liping2; Meng, Huiyuan3; Zhou, Jing4; Li, Qi1; Liu, Jianan1; Qiao, Panzhe5; Jiang, Baojiang1; Fu, Honggang1

2021-12-01

10.1007/s12274-021-3905-y

Nano Research   影响因子和分区

1998-0124

1998-0000

The formation of chemical bonds between metal ions and their supports is an effective strategy to achieve good catalytic activity. However, both the synthesis of active metal species on a support and control of their coordination environment are still challenging. Here, we show the use of an organic compound to produce tubular carbon nitride (TCN) as a support for Pd nanoparticles (NPs), creating a composite material (NP-Pd-TCN). It was found that Pd ions preferentially bind with the electron-rich N atoms of TCN, leading to strong metal-support interactions that benefit charge transfer from g-C3N4 to Pd. X-ray absorption spectroscopy further revealed that the metal-support interactions resulted in the formation of Pd-N bonds, which are responsible for the improvement in the charge dynamics as evidenced by the results from various techniques including photoluminescence (PL) spectroscopy, photocurrent measurements, and electrochemical impedance spectroscopy (EIS). Owing to the good dynamical properties, NP-Pd-TCN was used for photocatalytic hydrogen evolution under visible-light irradiation (lambda > 420 nm) and an excellent evolution rate of similar to 381 mu mol.h(-1) (0.02 g of the photocatalyst) was attained. This work aims to promote a strategy to synthesize efficient photocatalysts for hydrogen production by controllably introducing metal nanoparticles on a support and in the meantime forming chemical bonds to achieve intimate metal-support contact.

carbon nitride charge transfer dynamics photocatalysis hydrogen evolution reaction

SCI ; EI

英语

通讯

National Key R&D Program of China[2018YFE0201704] ; National Natural Science Foundation of China[21771061] ; Outstanding Youth Fund of Heilongjiang Province[JQ 2020B002]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000726491300001

TSINGHUA UNIV PRESS

20214911289485

Carbon nitride ; Catalyst activity ; Charge transfer ; Complexation ; Coordination reactions ; Dynamics ; Electrochemical impedance spectroscopy ; Metal ions ; Metal nanoparticles ; Nanosheets ; Palladium ; Palladium compounds ; Photocatalytic activity ; Photoluminescence spectroscopy ; Synthesis (chemical) ; X ray absorption spectroscopy

Gas Fuels:522 ; Metallurgy:531.1 ; Precious Metals:547.1 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Chemistry:801 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Atomic and Molecular Physics:931.3 ; Solid State Physics:933 ; Optical Variables Measurements:941.4

Web of Science

1.Heilongjiang Univ, Sch Chem & Mat Sci, Minst Educ Peoples Republ China, Key Lab Funct Inorgan Mat Chem, Harbin 150080, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
3.Heilongjiang Univ Sci & Technol, Sch Safety Engn, Harbin 150080, Peoples R China
4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
5.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Radiat Facil, Shanghai 201204, Peoples R China

Xiao, Xudong,Lin, Siying,Zhang, Liping,et al. Constructing Pd-N interactions in Pd/g-C3N4 to improve the charge dynamics for efficient photocatalytic hydrogen evolution[J]. Nano Research,2021,15:2928-2934.

Xiao, Xudong.,Lin, Siying.,Zhang, Liping.,Meng, Huiyuan.,Zhou, Jing.,...&Fu, Honggang.(2021).Constructing Pd-N interactions in Pd/g-C3N4 to improve the charge dynamics for efficient photocatalytic hydrogen evolution.Nano Research,15,2928-2934.

Xiao, Xudong,et al."Constructing Pd-N interactions in Pd/g-C3N4 to improve the charge dynamics for efficient photocatalytic hydrogen evolution".Nano Research 15(2021):2928-2934.