以正硅酸四乙酯为硅源，钛酸四丁酯为钛源，溴代十六烷基吡啶为模板剂，合成了具有中孔结构的Ti MCM 41，并对其进行了第4周期过渡金属氧化物的负载。紫外可见漫反射光谱（uv-vis）表明，负载金属氧化物后得到的M/Ti MCM 41的吸收光谱较Ti MCM 41发生了明显的红移。产氢实验结果表明，在300w高压汞灯照射下，M/Ti MCM 41的产氢活性较Ti MCM 41有明显的提高，前者的产氢速率最高可达后者的5.78倍。

采用化学共沉淀法制备了掺杂Cu、In的ZnSeS半导体光催化剂，并通过X射线粉末衍射、紫外-可见漫反射光谱和比表面积与孔径分析、X射线荧光光谱、热质量损失（热失重）分析对催化剂的结构进行了表征，在自制的反应装置上评价了催化剂的光分解水产氢性能。结果表明：在Cu，In-ZnSeS中掺杂Cu、In的摩尔分数为2%时其光吸收性能最好，最大吸收边红移至700nm紫外光照射下该催化剂光分解水产氢的量子效率达到4.83%；催化剂具有良好的热稳定性和光学稳定性，反应100h其产氢性能没有衰减。

A series of Cd1−xZnxS (x=0-0.92) photocatalysts were prepared by coprecipitation method and were calcined at 723K under N2 atmosphere. X-ray diffraction patterns results showed that the solid solution of Cd1-xZnxS were formed between ZnS and CdS. UV-Vis spectra indicated that the absorption edges of Cd1-xZnxS were red-shifted as the value of x decreased. The band gaps of the photocatalysts were estimated to be between 2.20-3.12 eV (x=0-0.92) from the onsets of the absorption edges and almost showed linear variation with x increasing. The position of conduction band for solid solution is shifted towards more negative potential as compared to that of CdS. The hydrogen productions of Cd1-xZnxS (x=0-0.92) by splitting water photocatalytically under ultraviolet and visible light irradiation were carried out in an inner-irradiation type reactor. The results indicated that the photocatalyst of Cd0.62Zn0.16S has the highest rate of hydrogen evolution with the quantum efficiency of 2.17%and 0.60%under ultraviolet and visible light irradiation, respectively. It has been considered that the crystallite size, (101) plane and band gap for the Cd1-xZnxS solid solutions have a strong influence on the efficiency of hydrogen production capability for water splitting.

A novel composite photocatalyst, Pt-TiO2-xNx-WO3 was synthesized by the template method and characterized by X-ray diffraction (XRD), ultraviolet-visible light diffusion spectroscopy (UV-vis), and element analysis. XRD spectra indicated that the photocatalyst was in anatase form and the diagnostic peak for WO3 existed. Combined with the XRD spectra and the results of elemental analysis, the formula of the composite photocatalyst was determined to be Pt-TiO2-xNx-WO3. UV-vis spectra showed the absorption edge was red-shifted to around 750 nm. Under the irradiation of ultraviolet, and with Na2S/Na2SO3 as the sacrificial reagent, the composite photocatalyst showed higher hydrogen production activity than anatase TiO2, and under irradiation with visible light (λ>400nm) it showed higher hydrogen production activity than TiO2-xNx while the anatase TiO2 showed negligible activity. An explanation was put forward for the mechanism of the red-shift of the absorption edge and the hydrogen production activity improvement.

A composite photocatalyst, Pd-TiO2-xNx-WO3, was synthesized by the template method and characterized by energy dispersive X-ray microanalysis (EDX), X-ray diffraction (XRD), UV-vis spectrometer, and scanning electron microscope (SEM). The results of EDX analysis reveals that the molecular formula of the composite photocatalyst can be expressed as Pd-TiO1.72N0.28-WO3. The UV–vis absorption spectrum indicates that the absorption edge of the catalyst red-shifts to around 600 nm. Under the irradiation with ultraviolet and visible light, the catalyst showed good performance for photocatalytic hydrogen production with a Na2S/Na2SO3 system as the sacrificial agent.