Preparation and Characteristic Measurement of Born Doped Diamond Film Electrode on Tantalum Substrate and its Properties for Degradation of High COD Wastewater

2011 ◽  
Vol 138-139 ◽  
pp. 612-617 ◽  
Author(s):  
Cheng Yao Gao

The boron-doped diamond film electrode grown on tantalum substrate (BDD/Ta) was prepared by hot filament chemical vapor deposition (HFCVD) technique. The morphology and quality of BDD/Ta film electrode were investigated by SEM and Raman spectroscopy respectively. The electrochemical behavior of the BDD/Ta film electrodes in Na2SO4 solution was also investigated by cyclic voltammetry and the window potential of BDD/Ta film electrode in Na2SO4 solution is of 4.1V, the hydrogen and oxygen evolution potentials are of-1.8V and +2.3V respectively. The characteristic measurements of BDD/Ta film electrode and its application to degradation of high concentration organic wastewater indicated that BDD/Ta film electrode have a series of advantages, including high overpotential for oxygen revolution, high current efficiency, good removal of chemical oxygen demand (COD).

2012 ◽  
Vol 476-478 ◽  
pp. 2353-2356
Author(s):  
Wen Qi Dai ◽  
Lin Jun Wang ◽  
Jian Huang ◽  
Yi Feng Liu ◽  
Ke Tang ◽  
...  

Nanocrystalline diamond (NCD) films were synthesized by hot-filament chemical vapor deposition (HFCVD) method at different temperatures (600 °C, 620°C, 640°C and 660°C). The AFM and Raman analyses demonstrated that deposition temperature has a great effect on the surface roughness and quality of NCD films and 620°C is the temperature to grow NCD films with smooth surfaces.


2007 ◽  
Vol 19 (18) ◽  
pp. 1933-1938 ◽  
Author(s):  
Yanzhu Lei ◽  
Guohua Zhao ◽  
Meichuan Liu ◽  
Xiaoe Xiao ◽  
Yiting Tang ◽  
...  

2010 ◽  
Vol 114 (13) ◽  
pp. 5906-5913 ◽  
Author(s):  
Guohua Zhao ◽  
Peiqiang Li ◽  
Fuqiao Nong ◽  
Mingfang Li ◽  
Junxia Gao ◽  
...  

2012 ◽  
Vol 1395 ◽  
Author(s):  
Jorge Arturo Lara Viera ◽  
Manoj K. Ram ◽  
Pedro Villalba ◽  
Mikhail Ladanov ◽  
Ashok Kumar

ABSTRACTThe present paper reports the utilization of a boron-doped nanocrystalline diamond film (BDD) in electrochemical oxidization (ECO) process of organic phenol compound in 0.1 M H2SO4 water solution. The nano BDD films were synthesized by microwave plasma chemical vapor deposition (MWPCVD), and then characterized by Raman spectroscopy and SEM before and after the electrochemical oxidation treatment. For the ECO treatment performed to the test sample solution, an observation of the first and the last voltammetric plots exhibited a qualitatively differences between the two plots where the first one represent the initial concentration and the last one the signal produced by the organic solution after treatment. UV-Vis analysis through the application of a standard calibration curve, quantitatively confirmed the composition of phenol remaining in the sample solution subdued to the ECO treatment.


2019 ◽  
Vol 680 ◽  
pp. 81-84
Author(s):  
Shin-ichiro Suzuki ◽  
Shinya Ohmagari ◽  
Hiroyuki Kawashima ◽  
Takeyasu Saito ◽  
Hitoshi Umezawa ◽  
...  

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