Exploring efficient and stable photoanode materials is a necessary link to realize the practical application of solar-driven photoelectrochemical (PEC) water splitting. Hence

we prepared rutile TiO

2

nanorods

with a width of 50 nm

which was growth

in situ

on carbon cloth (TiO

2

@CC) by hydrothermal reaction. And then

Ag nanoparticles (NPs) and biomass N

S-C NPs were chosen for the additional modification of the fabricated TiO

2

nanorods to produce broccoli-like Ag-N

S-C/TiO

2

@CC nanocomposites. According to the result of ultraviolet–visible diffuse reflectance spectroscopy (UV–vis) and PEC water splitting performance tests

Ag-N

S-C/TiO

2

@CC broadens the absorption region of TiO

2

@CC from the ultraviolet region to the visible region. Under AM 1.5G solar light irradiation

the photocurrent density of Ag-N

S-C/TiO

2

@CC is 89.8 μA·cm

-2

which is 11.8 times higher than TiO

2

@CC. Under visible light irradiation

the photocurrent density of Ag-N

S-C/TiO

2

@CC reaches to 12.6 μA·cm

-2

which is 21.0 times higher than TiO

2

@CC. Moreover

Ag-N

S-C/TiO

2

@CC shows a photocurrent responses in full pH range. It can be found that Ag NPs and N

S-C NPs play key roles in broaden the absorption range of TiO

2

nanorods to the visible light region and

promote the occurrence of PEC water oxidation reaction due to the surface plasmon resonance effect of Ag NPs and the synergistic effect of N

S-C NPs. The mechanism demonstrated that Ag-N

S-C/TiO

2

@CC can separate the photogenerated electron-hole pairs effectively and transfer the photogenerated electrons to the photocathode (Pt plate) in time. This research provides a new strategy for exploration surface plasma metal coupled biomass carbon materials in the field of PEC water splitting.