Powder Quartz/Nano-TiO_2 Composite: Mechanochemical Preparation and Photocatalytic Degradation of Formaldehyde
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摘要
Powder quartz(PQ)/nano-TiO_2 composite was prepared by a mechanochemical method. Based on as-prepared PQ/nano-TiO_2 composite, we prepared interior paints and investigated the degradation efficiency of formaldehyde(DEF). Scanning electron microscopy showed that nano-TiO_2 got well dispersed by the adding of PQ. Thermogravimetric analysis indicated that the mass ratio of 4:1 was a relatively good proportion for the most production of PQ/nano-TiO_2 composite. Fourier transform-infrared spectrometry showed that the peak position of Ti-O-Si bond varied with the milling time. At the early stage, no characteristic peak of Ti-O-Si bond was observed, while at the later stage, new peaks at 902 cm~(-1) and 937 cm~(-1) appeared. Meanwhile, PQ/nano-TiO_2 composite-based interior paint exhibited significant DEF of 96.3% compared to that consisting of sole nanoTiO_2 of 92.0% under visible light illumination. As an abundant mineral resource, PQ would make interior paints with HCHO purifying effect much more efficient and cheaper.
Powder quartz(PQ)/nano-TiO_2 composite was prepared by a mechanochemical method. Based on as-prepared PQ/nano-TiO_2 composite, we prepared interior paints and investigated the degradation efficiency of formaldehyde(DEF). Scanning electron microscopy showed that nano-TiO_2 got well dispersed by the adding of PQ. Thermogravimetric analysis indicated that the mass ratio of 4:1 was a relatively good proportion for the most production of PQ/nano-TiO_2 composite. Fourier transform-infrared spectrometry showed that the peak position of Ti-O-Si bond varied with the milling time. At the early stage, no characteristic peak of Ti-O-Si bond was observed, while at the later stage, new peaks at 902 cm~(-1) and 937 cm~(-1) appeared. Meanwhile, PQ/nano-TiO_2 composite-based interior paint exhibited significant DEF of 96.3% compared to that consisting of sole nanoTiO_2 of 92.0% under visible light illumination. As an abundant mineral resource, PQ would make interior paints with HCHO purifying effect much more efficient and cheaper.
Powder quartz(PQ)/nano-TiO_2 composite was prepared by a mechanochemical method. Based on as-prepared PQ/nano-TiO_2 composite, we prepared interior paints and investigated the degradation efficiency of formaldehyde(DEF). Scanning electron microscopy showed that nano-TiO_2 got well dispersed by the adding of PQ. Thermogravimetric analysis indicated that the mass ratio of 4:1 was a relatively good proportion for the most production of PQ/nano-TiO_2 composite. Fourier transform-infrared spectrometry showed that the peak position of Ti-O-Si bond varied with the milling time. At the early stage, no characteristic peak of Ti-O-Si bond was observed, while at the later stage, new peaks at 902 cm~(-1) and 937 cm~(-1) appeared. Meanwhile, PQ/nano-TiO_2 composite-based interior paint exhibited significant DEF of 96.3% compared to that consisting of sole nanoTiO_2 of 92.0% under visible light illumination. As an abundant mineral resource, PQ would make interior paints with HCHO purifying effect much more efficient and cheaper.
引文
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[26] ZhangS, YuQ,ChenZ,etal.Nano-TiO2,ParticleswithIncreased Photocatalytic Activity Prepared by the Miniemulsion Method[J]. Materials Letters, 2007, 61(26):4 839-4 842
[27]Tada H, Nishio O, Kubo N, et al. Dispersion Stability of TiO2, Nanoparticles Covered with SiOx, Monolayers in Water[J]. Journal of Colloid&Interface Science, 2007, 306(2):274-280
[2]Ye W, Won D, Zhang X. A Preliminary Ventilation Rate Determination Methods Study for Residential Buildings and Offices based on VOC Emission Database[J]. Building&Environment, 2014, 79(8):168-180
[3]Yang M, He J. Graphene Oxide as Quartz Crystal Microbalance Sensing Layers for Detection of Formaldehyde[J]. Sensors&Actuators B Chemical, 2016, 228:486-490
[4]Kuwahara Y, YamashitaH.EfficientPhotocatalyticDegradationof Organics Diluted in Water and Air Using TiO2 Designed with Zeolites and Mesoporous Silica Materials[J]. Journal of Materials Chemistry,2011, 21(8):2 407-2 416
[5]Fujishima A. TiO2 Photocatalysis and Related Surface Phenomena[C].In:60th Annual Meeting of the International Society of Electrochemistry, 2009:515-582
[6]Mo J, Zhang Y, Xu Q, et al. Photocatalytic Purification of Volatile Organic Compounds in Indoor Air:A Literature Review[J]. Atmospheric Environment, 2009, 43(14):2 229-2 246
[7]Zainudin N F, Abdullah A Z, Mohamed A R. Characteristics of Supported Nano-TiO2/ZSM-5/Silica Gel(SNTZS):Photocatalytic Degradation of Phenol[J]. Journal of Hazardous Materials, 2010, 174(1):299-306
[8]Bouna L, Rhouta B, Amjoud M, et al. Synthesis, Characterization and Photocatalytic Activity of TiO Supported Natural Palygorskite Microfibers[J]. Applied Clay Science, 2011, 52(3):301-311
[9]EskandarianM,FazliM,RasoulifardMH,etal.Decompositionof Organic ChemicalsbyZeolite-TiO2,Nanocomposite Supportedonto Low Density Polyethylene Film under UV-LED Powered by Solar Radiation[J]. Applied Catalysis B Environmental, 2016, 183:407-416
[10]Ji BJ, Liu H, Lee YJ, et al. Tailored Synthesis of C@TiO2, Yolk-shell Nanostructures for Highly Efficient Photocatalysis[J]. Catalysis Today,2016, 264:261-269
[11]Duan H, Qiu T, Zhang Z, et al. The Atmospheric Pressure Synthesis of TiO2@carbon Nanocomposite Microspheres and the Enhanced Photocatalytic Performance[J]. Materials Letters, 2015, 153:51-54
[12]Sun Q, Li H, Zheng S, et al. Characterizations of Nano-TiO2/Diatomite Composites and Their Photocatalytic Reduction of Aqueous Cr(VI)[J].Applied Surface Science, 2014, 311(9):369-376
[13]ChuanXY,HiranoM,InagakiM.PreparationandPhotocatalytic Performanceof Anatase-mountedNaturalPorousSilica,Pumice,by HydrolysisunderHydrothermalConditions[J].AppliedCatalysisB Environmental, 2004, 51(4):255-260
[14]Nasiri-Tabrizi B, Zalnezhad E, Hamouda AMS, et al. Gradual Mechanochemical Reaction to Produce Carbonate Doped Fluorapatite-titania CompositeNanopowder[J].CeramicsInternational,2014,40(10):15 623-15 631
[15]James SL, Adams CJ, Bolm C, et al. Mechanochemistry:Opportunities for New and Cleaner Synthesis[J]. Chem.soc.rev, 2011, 41(1):413-447
[16]Silveira D, Fernandes JO, Pereira EA. Evaluation of Different ColorimetricReagentsfortheDeterminationofFormaldehydeinIndoor Environments[J]. Quim. Nova. 38(2015):842-847
[17]Song N, Yan H. Novel Silicone-based Polymer Containing Active Methylene Designed for the Removal of Indoor Formaldehyde[J]. Journal of Hazardous Materials, 2015, 287:259-267
[18]Baradaran S, Zalnezhad E, Basirun WJ, et al. Statistical Optimization and Fretting Fatigue study of Zr/ZrO2, Nanotubular Array Coating on Ti-6Al-4V[J]. Surface&Coatings Technology, 2014, 258:979-990
[19]Morozov R, Krivtsov I, Avdin V, et al. Peroxo Method for Preparation of Composite Silica-titania Spheres[J]. Journal of Non-Crystalline Solids, 2016, 435:8-16
[20]Mueller R, Kammler HK, Karsten Wegner A, et al. OH Surface DensityofSiO2and TiO2by Thermogravimetric Analysis[J].Langmuir,2003, 19(1):160-165
[21]Houmard M, Riassetto D, Roussel F, et al. Morphology and Natural Wettability Properties of Sol-gel Derived TiO2-SiO2, Composite Thin Films[J]. Applied Surface Science, 2007, 254(5):1 405-1 414
[22]Zhang Q, Saito F. A Review on Mechanochemical Syntheses of Functional Materials[J]. Cheminform, 2013, 44(27):523-531
[23]Milanova M, Iordanova R, Tatsumisago M, et al. Soft Mechanochemical Synthesis and Electrochemical Behavior of LiVMoO6, for all-solid-state Lithium Batteries[J]. Journal of Materials Science, 2016, 51(7):1-11
[24]Paola A D, Bellardita M, Palmisano L, et al. Influence of Crystallinity and OH Surface Density on the Photocatalytic Activity of TiO2, Powders[J]. Journal of Photochemistry&Photobiology A Chemistry, 2014,273(2):59-67
[25]LiK,Chen T, YanL,etal.SynthesisofMesoporousGrapheneand TourmalineCo-doped TitaniaCompositesand TheirPhotocatalytic Activity Towards Organic Pollutant Degradation and Eutrophic Water Treatment[J]. Catalysis Communications, 2012, 28(44):196-201
[26] ZhangS, YuQ,ChenZ,etal.Nano-TiO2,ParticleswithIncreased Photocatalytic Activity Prepared by the Miniemulsion Method[J]. Materials Letters, 2007, 61(26):4 839-4 842
[27]Tada H, Nishio O, Kubo N, et al. Dispersion Stability of TiO2, Nanoparticles Covered with SiOx, Monolayers in Water[J]. Journal of Colloid&Interface Science, 2007, 306(2):274-280