为了研究3种掺Sb、掺Ru和掺Ru、Ce钛基SnO2电极的性能,以热分解法制备了改性钛基SnO2电极.利用扫描电镜和X射线衍射分析方法表征了电极的表面形貌和晶体结构,通过加速寿命实验考察电极的使用寿命,并以邻硝基苯酚为目标有机物,考察了电极的电催化性能.实验结果表明:Ru和Ce的掺杂减小了晶体颗粒的尺寸;Ti/Ru-Ce-SnO2电极的使用寿命远远高于Ti/Sb-SnO2电极;用Ti/Sb-SnO2电极电催化氧化降解ONP时,溶液中的COD去除率是最高的(80.3%),比Ti/Ru-Ce-SnO2电极的去除率(78%)略高;Ti/Sb-SnO2电极对ONP的去除速率是最快的,同时Ti/Ru-Ce-SnO2电极对ONP的去除速率与前者相比相差不大.因此,Ti/Ru-Ce-SnO2具有较高的电催化性能和高的使用寿命,综合分析认为Ti/Ru-Ce-SnO2电极具有更好的应用前景.
参考文献
| [1] | M.H.Priya;Giridhar Madras .Kinetics of Photocatalytic Degradation of Chlorophenol,Nitrophenol,and Their Mixtures[J].Industrial & Engineering Chemistry Research,2006(2):482-486. |
| [2] | Egerton TA;Christensen PA;Harrison RW;Wang JW .The effect of UV absorption on the photocatalytic oxidation of 2-nitrophenol and 4-nitrophenol[J].Journal of Applied Electrochemistry,2005(7):799-813. |
| [3] | Sun ZR;Takahashi F;Odaka Y;Fukushi K;Oshima Y;Yamamoto K .Effects of potassium alkalis and sodium alkalis on the dechlorination of o-chlorophenol in supercritical water[J].Chemosphere: Environmental toxicology and risk assessment,2007(2):151-157. |
| [4] | Yuan Liu;Huiling Liu;Yan Li .Comparative study of the electrocatalytic oxidation and mechanism of nitrophenols at Bi-doped lead dioxide anodes[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2008(1/2):297-302. |
| [5] | XIUPING ZHU;SHAOYUAN SHI;JUNIUN WEI .Electrochemical Oxidation Characteristics of p-Substituted Phenols Using a Boron-Doped Diamond Electrode[J].Environmental Science & Technology: ES&T,2007(18):6541-6546. |
| [6] | Yuan Liu;Huiling Liu .Comparative studies on the electrocatalytic properties of modified PbO{sub}2 anodes[J].Electrochimica Acta,2008(16):5077-5083. |
| [7] | Vaghela SS;Jethva AD;Mehta BB;Dave SP;Adimurthy S;Ramachandraiah G .Laboratory studies of electrochemical treatment of industrial azo dye effluent[J].Environmental Science & Technology: ES&T,2005(8):2848-2855. |
| [8] | Sires I;Centellas F;Garrido JA;Rodriguez RM;Arias C;Cabot PL;Brillas E .Mineralization of clofibric acid by electrochemical advanced oxidation processes using a boron-doped diamond anode and Fe2+ and UVA light as catalysts[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2007(3/4):373-381. |
| [9] | Liu HL;Liu Y;Zhang C;Shen RS .Electrocatalytic oxidation of nitrophenols in aqueous solution using modified PbO2 electrodes[J].Journal of Applied Electrochemistry,2008(1):101-108. |
| [10] | M.A.Quiroz;S.Reyna;C.A.Martinez-Huitle;S.Ferro;A.De Battisti .Electrocatalytic oxidation of p-nitrophenol from aqueous solutions at Pb/PbO_2 anodes[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2005(3/4):259-266. |
| [11] | Xueming Chen;Guohua Chen .Stable Ti/RuO{sub}2-Sb{sub}2O{sub}5-SnO{sub}2 electrodes for O{sub}2 evolution[J].Electrochimica Acta,2005(20):4155-4159. |
| [12] | MINGHUA ZHOU;QIZHOU DAI;LECHENG LEI;CHUNAN MA;DAHUI WANG .Long Life Modified Lead Dioxide Anode for Organic Wastewater Treatment: Electrochemical Characteristics and Degradation Mechanism[J].Environmental Science & Technology: ES&T,2005(1):363-370. |
| [13] | X. CHEN;F. GAO;G. CHEN .Comparison of Ti/BDD and Ti/SnO_2-Sb_2O-5 electrodes for pollutant oxidation[J].Journal of Applied Electrochemistry,2005(2):185-191. |
| [14] | Xiao-yan Li;Yu-hong Cui;Yu-jie Feng;Zhao-ming Xie;Ji-Dong Gu .Reaction pathways and mechanisms of the electrochemical degradation of phenol on different electrodes[J].Water research: A journal of the international water association,2005(10):1972-1981. |
| [15] | Hai-yang Ding;Yu-jie Feng;Jun-feng Liu .Preparation and properties of Ti/SnO_2-Sb_2O_5 electrodes by electrodeposition[J].Materials Letters,2007(27):4920-4923. |
| [16] | 李善评,曹翰林,胡振.稀土La掺杂Ti/Sb-SnO2电极的制备及性能研究[J].无机化学学报,2008(03):369-374. |
| [17] | 韩国成,刘峥,王永燎.Pr改性SnO2/Ti电催化电极制备、表征及性能的研究[J].稀土,2008(02):30-34. |
| [18] | Li GR;Qu DL;Yu XL;Tong YX .Microstructural evolution of CeO2 from porous structures to clusters of nanosheet arrays assisted by gas bubbles via electrodeposition[J].Langmuir: The ACS Journal of Surfaces and Colloids,2008(8):4254-4259. |
| [19] | 颜志鹏,崇明本,程党国,陈丰秋,詹晓力.纯与掺杂CeO2的氧化还原性质及其催化领域的应用[J].化学进展,2008(07):1037-1043. |
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