Effect of Structure of Ti/Boron-doped Diamond Electrode on the Electrochemical Degradation Performance for Aspirin†

doi:10.7503/cjcu20150153

Abstract

Abstract:

The surface morphology and crystal structure of three-dimensional 3D-porous titanium/boron-doped diamond(porous Ti/BDD) and planar Ti/BDD electrodes were studied by scanning electron microscopy(SEM) and X-ray diffraction(XRD). The cyclic voltammetry measurements of porous Ti/BDD and planar Ti/BDD electrodes were also performed. Porous Ti/BDD and planar Ti/BDD electrodes were used as anodes in the degradation of Aspirin, respectively. The results indicate that porous Ti/BDD has larger total, outer, and inner charges, porosity, and actual surface area due to the porous structure. Compared to planar Ti/PDD, porous Ti/BDD electrode is better on removal rate of chemical oxygen demand(COD) and Aspirin and energy consumption.

Key words: Porous titanium substrate, Boron-doped diamond film electrode, Aspirin, Electrochemical degradation

CLC Number:

O646

TrendMD:

HUANG Weimin, LIN Haibo. Effect of Structure of Ti/Boron-doped Diamond Electrode on the Electrochemical Degradation Performance for Aspirin^†[J]. Chem. J. Chinese Universities, 2015, 36(9): 1765.

Figures/Tables 8

Fig.1 SEM images of planar Ti(A) and porous Ti(B) substrates and planar Ti/BDD(C) and porous Ti/BDD(D) electrodes

Fig.2 XRD patterns of BDD films deposited on planar Ti(a) and porous Ti(b) substrates

Fig.3 Cyclic voltammograms for planar Ti/BDD(a) and porous Ti/BDD(b) electrodes in 0.5 mol/L H2SO4 solution(scan rate=50 mV/s)

Table 1 Data obtained from voltammetric charge analyses of different electrodes

Electrode	Total charge/C	Outer charge/C	Inner charge/C	Porosity(%)
Porous Ti/BDD	5.714	3.61	2.104	36.82
Planar Ti/BDD	3.774	3.00	0.824	20.51

Fig.4 Change of the COD value(A) and instant current efficiency(B) during the degradation of Aspirin at planar and porous Ti/BDD anodes in 100 mg/L Aspirina. 20 mA/cm2@planar Ti/BDD; b. 30 mA/cm2@planar Ti/BDD; c. 40 mA/cm2@planar Ti/BDD;d. 20 mA/cm2@porous Ti/BDD; e. 30 mA/cm2@porous Ti/BDD; f. 40 mA/cm2@porous Ti/BDD.

Fig.5 Change of the energy consumption value with COD removal rate during the degradation of Aspirin at planar and porous Ti/BDD anodes in 100 mg/L Aspirina. 20 mA/cm2@planar Ti/BDD; b. 30 mA/cm2@planar Ti/BDD; c. 40 mA/cm2@planar Ti/BDD; d. 20 mA/cm2@porous Ti/BDD; e. 30 mA/cm2@porous Ti/BDD; f. 40 mA/cm2@porous Ti/BDD.

Fig.6 Change of the concentration of Aspirin with current density during the degradation of Aspirin using planar and porous Ti/BDD anodesa. 20 mA/cm2@planar Ti/BDD; b. 30 mA/cm2@planar Ti/BDD; c. 40 mA/cm2@planar Ti/BDD; d. 20 mA/cm2@porous Ti/BDD; e. 30 mA/cm2@porous Ti/BDD; f. 40 mA/cm2@porous Ti/BDD.

Table 2 Degradation of Aspirin at planar and porous Ti/BDD anodes*

Electrode	Current density/(mA·cm^-2)	Time/h	Energy consumption/(kW·h·m^-3)	Cell volatge/V
Planar Ti/BDD	20	12.0	11.615	3.42
	30	9.0	13.373	3.58
	40	5.5	13.687	3.96
Porous Ti/BDD	20	6.8	6.871	3.15
	30	4.7	7.395	3.27
	40	3.7	8.687	3.66

References 28

[1]	Swain G. M., Anal. Chem., 1993, 65, 345—351
[2]	Conatant L., Normand F. L. E., Thin Solid Films, 2008, 15, 691—695
[3]	Wang A., Sun C., Zou Y. S., Acta Metallurgica Sinica, 2002, 38(11), 1228—1232
[4]	Pleskov Y. V., Russ. Chem. Rev., 1999, 68, 381—392
[5]	Li C.Y., Pan K., Lü X.Y., Chem. J. Chinese Universities, 2006, 27(11), 2136—2139
	(李春燕, 潘凯, 吕宪义. 高等学校化学学报, 2006, 27(11), 2136—2139)
[6]	Martin H. B., Argoitia A., Landau U., J. Electrochem. Soc., 1996, 143(6), 133—135
[7]	Swain G. M., Adv. Mater., 1994, 6(5), 388—392
[8]	Weiss E., Saez C., Groenen S. K., J. Appl. Electrochem., 2008, 38(1), 93—100
[9]	Canizares P., Larrondo F., Lobato J., J. Electrochem. Soc., 2005, 152(11), 191—196
[10]	Panizza M., Michaud P. A., Cerisola G., J. Electroanal. Chem., 2007, 507, 206—214
[11]	Ardizzone S., Fregonara G., Trasatti S., Electrochimi. Acta, 1990, 35, 263—267
[12]	Yamada D., Ivandini T. A., Komatsu M., J. Electroanal. Chem., 2008, 615(2), 145—153
[13]	Trstera I., Fryda M., Herrmann D., Diamond and Related Materials, 2002, 11, 640—645
[14]	Panizza M., Cerisola G., Electrochim. Acta, 2005, 51, 191—199
[15]	Braga N. A., Baldan M. R., Ferreira N. G., J. Mater. Sci., 2012, 47, 23—40
[16]	Braga N. A., Cairo C. A. A., Matsushima J. T., Baldan M. R., Ferreira N. G., J. Solid State Electrochem., 2010, 14, 313—321
[17]	Sun J. R., Lu H. Y., Lin H. B., Huang W. M., Li H. D., Lu J., Cui T., Mater. Lett., 2012, 83, 112—114
[18]	Marion R., Anne T., Francois B., Jean-Luc S., Helene B., Francoise E. P., Environ. Sci. Technol., 2006, 40, 5282—5288
[19]	Adebayo G. I., Williams J., Healy S., European Journal of Internal Medicine, 2007, 18, 299—303
[20]	Schror K., Semin. Thromb. Hemost., 1997, 23, 349—356
[21]	Barnett H.J. M., Hirsh J., Mustard F. J., Acetylsalicylic Acid: New Uses for an Old Drug, Raven Press, New York, 1982, 278
[22]	Liang L. Q., Huang W. M., Lin H. B., Chem. J. Chinese Universities, 2015, 36(8), 1606—1611
	(梁龙琪, 黄卫民, 林海波. 高等学校化学学报, 2015, 36(8), 1606—1611)
[23]	Tian Y., Chen X., Shang C., Chen G., J. Electrochem. Soc., 2006, 153, J80—J85
[24]	Swain G. M., Ramesham R., Anal. Chem., 1993, 65, 345—351
[25]	Marselli B., Garcia-Gomez J., Michaud P. A., Rodrigo M. A., Comninellis C., J. Electrochem. Soc., 2003, 150, D79—D83
[26]	Rabaaoui N., Mel K. S., Moussaoui Y., Allagui M. S., Bedoui A., Elaloui E., J. Hazard. Mater., 2013, 250, 447—453
[27]	Rabaaoui N., Allagui M. S., J. Hazard. Mater., 2012, 243, 187—192
[28]	Dirany A., Sireés I., Oturan N., Özcan A., Oturan M. A., Environmental Science & Technology, 2012, 46, 4074—4082