镧掺杂氧化锌的制备及其降解染料废水研究
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摘要
用乙酸锌、氧化镧制备La掺杂氧化锌,研究La掺杂氧化锌光催化降解甲基橙染料废水的性能。结果表明,La掺杂能够明显提高氧化锌对甲基橙的降解率,当La的掺杂量为5%时,照射120 min,甲基橙的降解率达到95. 2%。
La-doped ZnO was prepared by zinc acetate and lanthanum oxide. The performance of La-doped ZnO photocatalytic degradation of dye wastewater was studied with methyl orange. The results show that La-doped zinc oxide can significantly improve the degradation rate of zinc oxide to methyl orange. When the doping amount of La is 5%,the degradation rate of methyl orange reaches 95. 2% after 120 min of irradiation.
La-doped ZnO was prepared by zinc acetate and lanthanum oxide. The performance of La-doped ZnO photocatalytic degradation of dye wastewater was studied with methyl orange. The results show that La-doped zinc oxide can significantly improve the degradation rate of zinc oxide to methyl orange. When the doping amount of La is 5%,the degradation rate of methyl orange reaches 95. 2% after 120 min of irradiation.
引文
[1] Zhao C,Zheng H,Sun Y,et al. Evaluation of a novel dextran-based flocculant on treatment of dye wastewater:Effect of Kaolin particles[J]. Science of the Total Environment,2018,640:243-254.
[2] Wang Y,Pan Y,Zhu T,et al. Enhanced performance and microbial community analysis of bioelectrochemical system integrated with bio-contact oxidation reactor for treatment of wastewater containing azo dye[J]. Science of the Total Environment,2018,634:616-627.
[3] Yadav N G,Chaudhary L S,Sakhare P A,et al. Impact of collected sunlight on Zn Fe2O4,nanoparticles for photocatalytic application[J]. Journal of Colloid&Interface Science,2018,527:289-297.
[4] Kansal S K,Singh M,Sud D. Studies on Ti O2/Zn O photocatalysed degradation of lignin[J]. Journal of Hazardous Materials,2008,153(1/2):412-417.
[5] Li Y,Xie W,Hu X,et al. Comparison of dye photodegradation and its coupling with light-to-electricity conversion over Ti O2and Zn O[J]. Langmuir the Acs Journal of Surfaces&Colloids,2010,26(1):591-597.
[6]黄文艺,魏慧丹,史智鹏,等. Zn O@Si O2核壳量子点的制备及其荧光性能的研究[J].光学学报,2015,35(8):209-217.
[7] Wang Z,Liu Y,Huang B,et al. Progress on extending the light absorption spectra of photocatalysts[J]. Physical Chemistry Chemical Physics Pccp,2014,16(7):2758-2774.
[8] Fang Y,Lang J,Wang J,et al. Rare-earth doping engineering in nanostructured Zn O:a new type of eco-friendly photocatalyst with enhanced photocatalytic characteristics[J]. Applied Physics A-Materials Science&Processing,2018. https://doi. org/10. 1007/s00339-018-2044-0.
[9] Cerrato E,Gionco C,Berruti I,et al. Rare earth ions doped Zn O:Synthesis,characterization and preliminary photoactivity assessment[J]. Journal of Solid State Chemistry,2018,264:42-47.
[10] Labhane P K,Sonawane G H,Sonawane S H. Influence of rare-earth metal on the zinc oxide nanostructures:application in the photocatalytic degradation of methylene blue and p-nitro phenol[J]. Green Processing&Synthesis,2017,7(4):360-371.
[11] Thi H T,Lee B K. Effective photocatalytic degradation of paracetamol using La-doped Zn O photocatalyst under visible light irradiation[J]. Materials Research Bulletin,2017,96(SI):171-182.
[12] Anandan S,Vinu A,Mori T,et al. Photocatalytic degradation of 2,4,6-trichlorophenol using lanthanum doped Zn O in aqueous suspension[J]. Catalysis Communications,2007,8(9):1377-1382.
[13] Shakir M,Faraz M,Sherwani M A,et al. Photocatalytic degradation of the Paracetamol drug using Lanthanum doped Zn O nanoparticles and their in-vitro cytotoxicity assay[J]. Journal of Luminescence,2016,176:159-167.
[14]黄方映,罗莉,戴强钦.铕掺杂纳米氧化锌晶体结构和荧光光谱的研究[J].光谱学与光谱分析,2011,31(11):2978-2980.
[15] Ali R N,Naz H,Li J,et al. Band gap engineering of transition metal(Ni/Co)codoped in zinc oxide(Zn O)nanoparticles[J]. Journal of Alloys&Compounds,2018,744:90-95.
[16] Kumar B V,Velchuri R,Devi V R,et al. Preparation,characterization,magnetic susceptibility(Eu,Gd and Sm)and XPS studies of Ln2Zr Ti O7(Ln=La,Eu,Dy and Gd)[J]. Journal of Solid State Chemistry,2011,184(2):264-272.
[17] Xu X L,Chen Y,Ma S Y,et al. Excellent acetone sensor of La-doped Zn O nanofibers with unique bead-like structures[J]. Sensors&Actuators B Chemical,2015,213:222-233.
[18] Velayi E,Norouzbeigi R. Annealing temperature dependent reversible wettability switching of micro/nano structured Zn O superhydrophobic surfaces[J]. Applied Surface Science,2018,441:156-164.
[19] Nerenkte A. Characterization and photocatalytic activity of Ln(La,Eu,Gd,Dy and Ho)loaded Zn O nanocatalysts[J]. Applied Catalysis A General,2014,475(5):27-39.
[20] Montero-Muoz M,Ramos-Ibarra J E,Rodríguez-Páez J E,et al. Role of defects on the enhancement of the photocatalytic response of Zn O nanostructures[J]. Applied Surface Science,2018,448:646-654.
[2] Wang Y,Pan Y,Zhu T,et al. Enhanced performance and microbial community analysis of bioelectrochemical system integrated with bio-contact oxidation reactor for treatment of wastewater containing azo dye[J]. Science of the Total Environment,2018,634:616-627.
[3] Yadav N G,Chaudhary L S,Sakhare P A,et al. Impact of collected sunlight on Zn Fe2O4,nanoparticles for photocatalytic application[J]. Journal of Colloid&Interface Science,2018,527:289-297.
[4] Kansal S K,Singh M,Sud D. Studies on Ti O2/Zn O photocatalysed degradation of lignin[J]. Journal of Hazardous Materials,2008,153(1/2):412-417.
[5] Li Y,Xie W,Hu X,et al. Comparison of dye photodegradation and its coupling with light-to-electricity conversion over Ti O2and Zn O[J]. Langmuir the Acs Journal of Surfaces&Colloids,2010,26(1):591-597.
[6]黄文艺,魏慧丹,史智鹏,等. Zn O@Si O2核壳量子点的制备及其荧光性能的研究[J].光学学报,2015,35(8):209-217.
[7] Wang Z,Liu Y,Huang B,et al. Progress on extending the light absorption spectra of photocatalysts[J]. Physical Chemistry Chemical Physics Pccp,2014,16(7):2758-2774.
[8] Fang Y,Lang J,Wang J,et al. Rare-earth doping engineering in nanostructured Zn O:a new type of eco-friendly photocatalyst with enhanced photocatalytic characteristics[J]. Applied Physics A-Materials Science&Processing,2018. https://doi. org/10. 1007/s00339-018-2044-0.
[9] Cerrato E,Gionco C,Berruti I,et al. Rare earth ions doped Zn O:Synthesis,characterization and preliminary photoactivity assessment[J]. Journal of Solid State Chemistry,2018,264:42-47.
[10] Labhane P K,Sonawane G H,Sonawane S H. Influence of rare-earth metal on the zinc oxide nanostructures:application in the photocatalytic degradation of methylene blue and p-nitro phenol[J]. Green Processing&Synthesis,2017,7(4):360-371.
[11] Thi H T,Lee B K. Effective photocatalytic degradation of paracetamol using La-doped Zn O photocatalyst under visible light irradiation[J]. Materials Research Bulletin,2017,96(SI):171-182.
[12] Anandan S,Vinu A,Mori T,et al. Photocatalytic degradation of 2,4,6-trichlorophenol using lanthanum doped Zn O in aqueous suspension[J]. Catalysis Communications,2007,8(9):1377-1382.
[13] Shakir M,Faraz M,Sherwani M A,et al. Photocatalytic degradation of the Paracetamol drug using Lanthanum doped Zn O nanoparticles and their in-vitro cytotoxicity assay[J]. Journal of Luminescence,2016,176:159-167.
[14]黄方映,罗莉,戴强钦.铕掺杂纳米氧化锌晶体结构和荧光光谱的研究[J].光谱学与光谱分析,2011,31(11):2978-2980.
[15] Ali R N,Naz H,Li J,et al. Band gap engineering of transition metal(Ni/Co)codoped in zinc oxide(Zn O)nanoparticles[J]. Journal of Alloys&Compounds,2018,744:90-95.
[16] Kumar B V,Velchuri R,Devi V R,et al. Preparation,characterization,magnetic susceptibility(Eu,Gd and Sm)and XPS studies of Ln2Zr Ti O7(Ln=La,Eu,Dy and Gd)[J]. Journal of Solid State Chemistry,2011,184(2):264-272.
[17] Xu X L,Chen Y,Ma S Y,et al. Excellent acetone sensor of La-doped Zn O nanofibers with unique bead-like structures[J]. Sensors&Actuators B Chemical,2015,213:222-233.
[18] Velayi E,Norouzbeigi R. Annealing temperature dependent reversible wettability switching of micro/nano structured Zn O superhydrophobic surfaces[J]. Applied Surface Science,2018,441:156-164.
[19] Nerenkte A. Characterization and photocatalytic activity of Ln(La,Eu,Gd,Dy and Ho)loaded Zn O nanocatalysts[J]. Applied Catalysis A General,2014,475(5):27-39.
[20] Montero-Muoz M,Ramos-Ibarra J E,Rodríguez-Páez J E,et al. Role of defects on the enhancement of the photocatalytic response of Zn O nanostructures[J]. Applied Surface Science,2018,448:646-654.