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Pengwei Huo,Yanfeng Tang,Mingjun Zhou,Jinze Li,Zhefei Ye,CHANGCHANG MA,Longbao Yu,Yongsheng Yan 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.37 No.-
ZnWO4-CdS heterostructure photocatalysts have been successfully synthesized by hydrothermalmethod with assembling CdS on the surface of ZnWO4. The obtained composite photocatalysts werecharacterized by X-ray diffraction, transmission electron microscopy, Raman, thermo-gravimetricanalysis, UV–vis diffuse reflectance spectroscopy, photoluminescence and photocurrent measurement. The results show that the interface between ZnWO4 and CdS is well formed, and the CdS nanoparticlesare uniformly distributed onto ZnWO4 nanorods which could facilitate charge transfer and reducerecombination of photo-generated electrons and holes. Compared with pure ZnWO4 and CdS, the aspreparedheterostructure photocatalysts exhibit excellent photostability and photodegradation abilityof ciprofloxacin (CIP) under visible light irradiation.
Honghui Tong,Qinchuan Chen,LiLu Shen,Yanfeng Huo,Ke Wang,Tanmin Feng,Lilan Mu,Jun Zha,Paul K. Chu 한국진공학회(ASCT) 2002 Journal of Korean Vacuum Science & Technology Vol.6 No.2
Hydraulic pumps are used to control the landing wheels of aircrafts, and their proper operation is vital to plane safety. It is well known that adhesive wear failure is a major cause of pump failure. A dual nitrogen plasma immersion ion implantation process calling for the implantation of nitrogen at two different energies and doses has been developed to enhance the surface properties of the disks in the pumps. The procedures meet the strict temperature requirement of <200℃, and after the treatment, the working lifetime of the pumps increases by more than a factor of two. This experimental protocol has been adopted by the hydraulic pump factory as a standard manufacturing procedure.