Nanoporous Co-doped ZnCdS were facilely fabricated via adopting ZIFs as templates, and Cd(NO) and thiourea as precursors. The highly porous microstructure and uniform Co-doping of the photocatalyst afford a high H-production rate (45.2 and 422.2 times larger than those of ZnCdS and CdS), providing an effective way for the development of high performance nanoporous photocatalysts.

Through doping the Zn ion with the transition metal, this work fabricated the bimetallic ZnM-ZIF (M = Ni, Cu, Co) encapsulated CdS nanorod heterostructure for the first time.

Phosphorus doping could modulate the band structure and hydrogen evolution reaction over potential, and bring about the excellent photocatalytic hydrogen evolution activity of CdS/P-MoS2.

The application of new single-beam normalized photo-acoustic spectroscopy in semiconductor Pb3O4 nano-crystals photo-acoustic spectroscopy was carried out. The measured spectra of semiconductor Pb3O4 nano-crystals absorption coefficient of 0.95, and then measured the semiconductor Pb3O4 nano-crystals powders band gap is 2.3 . The TEM image shows the semiconductor Pb3O4 nano-crystals are round granular structure, while the XRD spectrum indicates that the semiconductor Pb3O4 nano-crystals are tetragonal. The grain size measured to be about 30nm, and the average particle size after the reunion is 100nm. Compared with the micron crystal, the optical properties of semiconductor nano-crystals and nano-particle size are closely related. By changing the size of semiconductor nano-crystals, doped to change shape and optical, electrical properties of the goal. Because the defense and photoconductive materials with very special properties, they were widely used in many areas of modern technology, especially in delay bombings and stealth coating.

By using a new type of single-beam normalized photo-acoustic spectroscopy that with weak signal detection and non-invasive testing, the photo-acoustic spectroscopy of semiconductor SiO2 nano-crystals was measured，the measured spectra of semiconductor SiO2 nano-crystals absorption coefficient was 0.20, and powders band gap is 3.4eV. The TEM image shows that the semiconductor SiO2 nano-crystals are round lump structure, while the grain size of the semiconductor SiO2 nano-crystals is about 70x200 nm, and the average particle size after the reunion is 100x300 nm. Compared with their micron crystal, the optical and electrical properties of semiconductor nano-crystals and nano-particle size are closely related. By changing the size of semiconductor nano-crystals, the mix could achieve the goal of changing the optical and electrical properties. Because of the semiconductor SiO2 nano-crystals‘ special properties of optics and electronics and photo-semiconductor nano-materials, they are widely used in many areas of modern science and technology.