污水中有机污染物的光催化降解研究
|
摘要
本文报道了一种利用枸杞子制备的金纳米颗粒来降解对硝基苯酚的研究。以枸杞子为还原剂,在水解条件下还原氯金酸制备金纳米颗粒,并且对其进行表征。采用硼氢化钠为还原剂,金纳米颗粒为催化剂,太阳光照下催化降解对硝基苯酚。结果表明15 min后对硝基苯酚被还原成无污染的对氨基苯酚。
This paper reports on the use of Au nanoparticles(NPs) prepared by wolfberries to degrade 4-aminophenol. Using wolfberries as reductive agent, Au NPs are prepared by reducing chlorauric acid under hydrolysis conditions, and characterized. Using sodium borohydride as reductive agent and Au NPs as catalyzer,Catalyzing and degrading 4-nitrophenol, under sunlight incident conditions. The result shows that 4-aminophenol is reduced to pollution-free 4-aminophenol after 15 minutes.
This paper reports on the use of Au nanoparticles(NPs) prepared by wolfberries to degrade 4-aminophenol. Using wolfberries as reductive agent, Au NPs are prepared by reducing chlorauric acid under hydrolysis conditions, and characterized. Using sodium borohydride as reductive agent and Au NPs as catalyzer,Catalyzing and degrading 4-nitrophenol, under sunlight incident conditions. The result shows that 4-aminophenol is reduced to pollution-free 4-aminophenol after 15 minutes.
引文
[1]Henglein A.Small-particle research physicochemical properties of extremely small colloidal metal and semiconductor particles[J].Chem Rev,1989,89(8):1861-1873.
[2]Leon R,Petroff P M,Leonard D.Spatially resolved visible luminescence of self-assembled semiconductor quantum dots[J].Science,1995,267(5206):1966-1968.
[3]Ball P,Garwin L.Science at the atomic scale[J].Nature,1992,355(6363):761-766.
[4]Leggett L J,Chakravaty S,Dosey A T.Dynamics of the dissipative two-state system[J].Rev mod Phys,1987,59(1):81-85.
[5]左国防.基于纳米尺寸的分子电子信息存储研究[J].微纳电子技术,2009,46(6):327-334.
[6]Kennedy L C,Bickford L R,Lewinski N A,et al.A new era for cancer treatment:gold-nanoparticle-mediated thermal therapies[J].Small,2011,7(2):169-183.
[7]张立德.环境纳米科技研究面临的机遇和挑战[J].自然杂志,2008,30(2):67-73.
[8]Ojha M,Chatterjee A,Mont F,et al.The role of solid surface structure on dropwise phase change processes[J].International Journal of Heat and Mass Transfer,2010,53(5-6):910-922.
[9]Deepak S,Niladri S,Gyanaranjan S,et al.Nano silver imprinted polyvinyl alcohol nanocomposite thin films for Hg2+sensor[J].Sensors Actuators B:Chemical,2017,246:96-107.
[10]Seralathan J,Stexenson P,Subramaniam S,et al.Spectroscopy investigation on chemo-catalytic,free radical scavenging and bactericidal properties of biogenic silver nanoparticles synthesized using salicornia brachiata aqueous extract[J].Spectrochim Acta A,2014,118(2):349-355.
[11]Malathi S,Ezhilarasu T,Abiraman T,et al.One pot green synthesis of Ag,Au and Au-Ag alloy nanoparticles using isonicotinic acid hydrazide and starch[J].Carbohydrate Polymers,2014,111(20):734-743.
[2]Leon R,Petroff P M,Leonard D.Spatially resolved visible luminescence of self-assembled semiconductor quantum dots[J].Science,1995,267(5206):1966-1968.
[3]Ball P,Garwin L.Science at the atomic scale[J].Nature,1992,355(6363):761-766.
[4]Leggett L J,Chakravaty S,Dosey A T.Dynamics of the dissipative two-state system[J].Rev mod Phys,1987,59(1):81-85.
[5]左国防.基于纳米尺寸的分子电子信息存储研究[J].微纳电子技术,2009,46(6):327-334.
[6]Kennedy L C,Bickford L R,Lewinski N A,et al.A new era for cancer treatment:gold-nanoparticle-mediated thermal therapies[J].Small,2011,7(2):169-183.
[7]张立德.环境纳米科技研究面临的机遇和挑战[J].自然杂志,2008,30(2):67-73.
[8]Ojha M,Chatterjee A,Mont F,et al.The role of solid surface structure on dropwise phase change processes[J].International Journal of Heat and Mass Transfer,2010,53(5-6):910-922.
[9]Deepak S,Niladri S,Gyanaranjan S,et al.Nano silver imprinted polyvinyl alcohol nanocomposite thin films for Hg2+sensor[J].Sensors Actuators B:Chemical,2017,246:96-107.
[10]Seralathan J,Stexenson P,Subramaniam S,et al.Spectroscopy investigation on chemo-catalytic,free radical scavenging and bactericidal properties of biogenic silver nanoparticles synthesized using salicornia brachiata aqueous extract[J].Spectrochim Acta A,2014,118(2):349-355.
[11]Malathi S,Ezhilarasu T,Abiraman T,et al.One pot green synthesis of Ag,Au and Au-Ag alloy nanoparticles using isonicotinic acid hydrazide and starch[J].Carbohydrate Polymers,2014,111(20):734-743.