脉冲放电等离子体诱导Fe、N掺杂活性炭负载TiO_2降解偶氮染料废水的研究
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- 英文论文题名：Study on Degradation of Azo Dye Wastewater by Pulsed Discharge Plasma Induced Doping Activated Carbon Supported TiO2
- 论文作者：屈广周 ; 王铁成 ; 刘娜 ; 梁东丽 ; 呼世斌
- 英文论文作者：Qu Guangzhou ; Wang Tiecheng ; Liu Na ; Liang Dongli ; Hu Shibin ; College of Natural Resources and Environment ; Northwest A&F University ; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China ; Ministry of Agriculture
- 年：2015
- 作者机构：西北农林科技大学资源环境学院;农业部西北植物营养与农业环境重点实验室;
- 论文关键词：脉冲放电 ; 掺杂TiO_2 ; 活性炭 ; 偶氮染料废水 ; 去除
- 英文论文关键词：pulse discharge ; doping TiO_2 ; activated carbon ; azo dye wastewater ; removal
- 会议召开时间：2015-08-12
- 会议录名称：静电放电：从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议论文集
- 语种：中文
- 分类号：X703;O643.36
- 学会代码：WLJD
- 会议名称：静电放电 ; 从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议
- 会议地点：中国河北石家庄
- 主办单位：中国物理学会静电专业委员会
- 学会名称：中国物理学会静电专业委员会
- 页数：4
- 文件大小：529k
- 原文格式：D
- 会议级别：全国
摘要
采用溶胶-凝胶和浸渍-焙烘相结合的方法制备了Fe、N掺杂活性炭负载型TiO_2(TiO_2/AC)催化剂,研究了脉冲放电等离子体诱导掺杂TiO_2/AC对偶氮染料橙黄Ⅱ的去除。通过扫描电镜对催化剂的形貌进行了表征,分析了不同Fe、N掺杂TiO_2/AC催化剂对脉冲放电等离子体去除橙黄Ⅱ的影响。实验结果表明:Fe、N被均匀的分布在TiO_2/AC催化剂上;在脉冲放电等离子体作用下,Fe、N掺杂有利于提高TiO_2/AC催化剂对橙黄Ⅱ的去除率,这可能是由于Fe掺杂抑制了电子-空穴的复合,N掺杂导致TiO_2形成杂质能级,提高了光子的利用效率;随着Fe、N掺杂量的增加,橙黄Ⅱ的去除率增加;在Fe、N共掺杂的情况下,当Fe、N、Ti的摩尔比为0.1%:1.0%:1时,橙黄Ⅱ的去除率最高,可达到70%以上。
the Fe,N-doped activated carbon supported Ti O2(Ti O2/AC)catalyst was prepared by sol-gel combining with impregnation-baking.The removal of azo dye orangeⅡwas studied by pulsed discharge plasma induced doping TiO_2/AC.The morphology of the catalyst was characterized by scanning electron microscopy.The effects of different Fe,N-doped TiO_2/AC catalyst on removal of orangeⅡunder pulsed discharge plasma was analyzed.The results showed that Fe,N is evenly distributed over TiO_2/AC catalyst.Under pulsed discharge plasma,Fe,N-doped is helpful to the removal of orangeⅡby TiO_2/AC catalyst,which may be due Fe doping restrains electron-hole complex,while N-doped leads to the formation of impurity levels,as a result,improve the utilization efficiency of photons.With the increase of Fe,N doping amount,the removal rate of orangeⅡincreased in certain content.When molar ratio of Fe,N,Ti is 0.1%:1.0%:1,removal rate of orangeⅡcan reach more than 70%.
the Fe,N-doped activated carbon supported Ti O2(Ti O2/AC)catalyst was prepared by sol-gel combining with impregnation-baking.The removal of azo dye orangeⅡwas studied by pulsed discharge plasma induced doping TiO_2/AC.The morphology of the catalyst was characterized by scanning electron microscopy.The effects of different Fe,N-doped TiO_2/AC catalyst on removal of orangeⅡunder pulsed discharge plasma was analyzed.The results showed that Fe,N is evenly distributed over TiO_2/AC catalyst.Under pulsed discharge plasma,Fe,N-doped is helpful to the removal of orangeⅡby TiO_2/AC catalyst,which may be due Fe doping restrains electron-hole complex,while N-doped leads to the formation of impurity levels,as a result,improve the utilization efficiency of photons.With the increase of Fe,N doping amount,the removal rate of orangeⅡincreased in certain content.When molar ratio of Fe,N,Ti is 0.1%:1.0%:1,removal rate of orangeⅡcan reach more than 70%.
引文
[1]张若兵,马文长,张永锐,张弦.负载型Ti O2在双脉冲放电水处理中的应用[J].高电压技术,2012,38(12):3363-3369.
[2]Li J.,Zhou Z.G.,Wang H.J.,et al.Research on decoloration of dye wastewater by combination of pulsed discharge plasma and Ti O2 nanoparticles[J].Desalination,2007,212:123-1281.
[3]Lukes P.,Clupek M.,Sunka P.,et al.Degradation of phenol by underwater pulsed corona di scharge in combination with Ti O2 photocatalysis[J].Res.Chem.Intermed.,2005,31:285-2941.
[4]Hao X.L.,Zhou M.H.,Zhang Y.,et al.Enhanced degradation of organic pollutant 4-chlorophenol in water by non-thermal plasma process with Ti O2[J].Plasma Chem.Plasma Process.,2006,26(5):455-4681
[5]Romero D.C.,Torres G.T.,Arvalo J.C.Synthesis and characterization of Ti O2 doping with rare earths by sol-gel method photocatalytic activity for phenol degradation[J].J.Sol-Gel Sci.Technol.,2010,56(3):219-226.
[6]Laurent D.,Jean F.C.,Here L.Synthesis of titanium dioxide nanoparticles by reactive DCmagnetron sputtering[J].Thin Solid Films.2009,518(1):112-115.
[7]屈广周,查康达,梁东丽,等.Fe、N掺杂活性炭负载Ti O2光催化降解酸性橙Ⅱ的研究[J].西北农林科技大学学报(自然科学版),2014,42:1-6.
[8]屈广周,赵良琪,梁东丽,等.脉冲放电等离子体-活性炭协同去除废水中重金属离子和有机物的研究[J].高电压技术,2014,40:98-102.
[9]Zeng L.,Yin,B.L.,Gan,J.J.,et al.Preparation of Nanometer Ti O2-Fe Catalyst by Sol-Gel Method and Its Photocatalytic Performance[J].Rare.Metal Mat.Eng.,2010,39:350-352.
[10]Zhao B.X.,Mele,G.,Pio I.Degradation of4-nitrophenol(4-NP)using Fe-Ti O2 as a heterogeneous photo-Fenton catalyst[J].J.Hazard.Mater.,2010,176(1-3):569-574.
[11]Tu Y.F.,Huang S.Y.,Sang J.P.,et al.Preparation of Fe-doped Ti O2 nanotube arrays and their photocatalytic activities under visible light[J].Mater.Res.Bull.,2010,45(2):224-229.
[12]Irie H,Watanabe Y,Hashimoto K.Nitrogen concentration dependence on photocatalytic activity of Ti O2-x Nx powders[J].J.Phys.Chem.C.,2003,107(23):5483-5486.
[13]Collazzo,G.C.,Foletto E.L.,Jahn S.L.,et al.Degradation of direct black 38 dye under visible light and sunlight irradiation by n-doped anatase Ti O2 as photocatalyst[J].J Environ.Manage.,2012,98:107-111.
[2]Li J.,Zhou Z.G.,Wang H.J.,et al.Research on decoloration of dye wastewater by combination of pulsed discharge plasma and Ti O2 nanoparticles[J].Desalination,2007,212:123-1281.
[3]Lukes P.,Clupek M.,Sunka P.,et al.Degradation of phenol by underwater pulsed corona di scharge in combination with Ti O2 photocatalysis[J].Res.Chem.Intermed.,2005,31:285-2941.
[4]Hao X.L.,Zhou M.H.,Zhang Y.,et al.Enhanced degradation of organic pollutant 4-chlorophenol in water by non-thermal plasma process with Ti O2[J].Plasma Chem.Plasma Process.,2006,26(5):455-4681
[5]Romero D.C.,Torres G.T.,Arvalo J.C.Synthesis and characterization of Ti O2 doping with rare earths by sol-gel method photocatalytic activity for phenol degradation[J].J.Sol-Gel Sci.Technol.,2010,56(3):219-226.
[6]Laurent D.,Jean F.C.,Here L.Synthesis of titanium dioxide nanoparticles by reactive DCmagnetron sputtering[J].Thin Solid Films.2009,518(1):112-115.
[7]屈广周,查康达,梁东丽,等.Fe、N掺杂活性炭负载Ti O2光催化降解酸性橙Ⅱ的研究[J].西北农林科技大学学报(自然科学版),2014,42:1-6.
[8]屈广周,赵良琪,梁东丽,等.脉冲放电等离子体-活性炭协同去除废水中重金属离子和有机物的研究[J].高电压技术,2014,40:98-102.
[9]Zeng L.,Yin,B.L.,Gan,J.J.,et al.Preparation of Nanometer Ti O2-Fe Catalyst by Sol-Gel Method and Its Photocatalytic Performance[J].Rare.Metal Mat.Eng.,2010,39:350-352.
[10]Zhao B.X.,Mele,G.,Pio I.Degradation of4-nitrophenol(4-NP)using Fe-Ti O2 as a heterogeneous photo-Fenton catalyst[J].J.Hazard.Mater.,2010,176(1-3):569-574.
[11]Tu Y.F.,Huang S.Y.,Sang J.P.,et al.Preparation of Fe-doped Ti O2 nanotube arrays and their photocatalytic activities under visible light[J].Mater.Res.Bull.,2010,45(2):224-229.
[12]Irie H,Watanabe Y,Hashimoto K.Nitrogen concentration dependence on photocatalytic activity of Ti O2-x Nx powders[J].J.Phys.Chem.C.,2003,107(23):5483-5486.
[13]Collazzo,G.C.,Foletto E.L.,Jahn S.L.,et al.Degradation of direct black 38 dye under visible light and sunlight irradiation by n-doped anatase Ti O2 as photocatalyst[J].J Environ.Manage.,2012,98:107-111.
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