Preparation and Photothermal Conversion Performance of Submicron Ti4O7
MA Chenyu1, 2, LI Xiaoyu2, ZHANG Hui2, LI Jianqiang2, ZHAO Jianling1, HE Gang3, LI Jiangtao3, QI Tao2
1 School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130; 2 National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190; 3 Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190
Abstract: Photothermal conversion is considered to be the efficient solar energy utilization technology, which is highly dependent on solar absorption capacity of photothermal conversion materials. In this paper, the method of ball-milling was used to obtain submicron Ti4O7 powders. Scanning electron microscopy (SEM), laser particle size analyzer, X-ray diffractometry (XRD), and scanning calorimetry (DSC) were used to characterize the morphology, compositions of samples, and absorption spectrum was mea-sured by UV-Vis-NIR spectrophotometer, and the photothermal conversion efficiency was performed by solar light simulator. The results showed that the Ti4O7 with particle size of ~0.35 μm were obtained, and its solar light absorption capacity was about 89.5%. Importantly, they can efficiently convert solar energy to thermal energy with photothermal conversion efficiency of 73.7%. When the submicron Ti4O7 was floating on the surface of the water, solar water vapor generation efficiency was increased by 2.15 times compared to the efficiency that submicron Ti4O7 was absent in the solar evaporation water experiment. Therefore, the submicron Ti4O7 is very promising photothermal conversion material.
1 Tong H, Ouyang S X, Bi Y P, et al.Nano-photocatalytic materials: Possibilities and challenges[J].Advanced Materials,2012,24(2):229. 2 Lewis N S.Research opportunities to advance solar energy utilization[J].Science,2016,351(6271):1920. 3 Tao P, Shang W, Song C Y, et al.Bioinspired engineering of thermal materials[J].Advanced Materials,2015,27(3):428. 4 Liu Y M, Yu S T, Feng R, et al.A bioinspired, reusable, paper-based system for high-performance large-scale evaporation[J].Advanced Materials,2015,27(17):2768. 5 Wang Z H, Liu Y M, Tao P, et al.Bio-inspired evaporation through plasmonic film of nanoparticles at the air-water interface[J].Small,2014,10(16):3234. 6 Zhou L, Tan Y L, Ji D X, et al.Self-assembly of highly efficient, broadband plasmonic absorbers for solar steam generation[J].Science Advances,2016,2(4):e1501227. 7 Zhou L, Tan Y L, Wang J Y, et al.3D self-assembly of aluminium nanoparticles for plasmon-enhanced solar desalination[J].Nature Photonics,2016,10(6):393. 8 Zeng Y, Yao J F, Horri B A, et al.Solar evaporation enhancement using floating light-absorbing magnetic particles[J].Energy & Environmental Science,2011,4(10):4074. 9 Ghasemi H, Ni G, Marconnet A M, et al.Solar steam generation by heat localization[J].Nature Communications,2014,5:4449. 10 Liu Y M, Chen J W, Guo D W, et al.Floatable, self-cleaning, and carbon-black-based superhydrophobic gauze for the solar evaporation enhancement at the air-water interface[J].ACS Applied Materials & Interfaces,2015,7(24):13645. 11 Ito Y, Tanabe Y, Han J H, et al.Multifunctional porous graphene for high-efficiency steam generation by heat localization[J].Advanced Materials,2015,27(29):4302. 12 Li X Q, Xu W C, Tang M Y, et al.Graphene oxide-based efficient and scalable solar desalination under one sun with a confined 2D water path[J].Proceedings of the National Academy of Sciences of the United States of America,2016,113(49):13953. 13 Hu X Z, Xu W C, Zhou L, et al.Tailoring graphene oxide-based aerogels for efficient solar steam generation under one sun[J].Advanced Materials,2017,29(5):1604031. 14 Zhang L B, Tang B, Wu J B, et al.Hydrophobic light-to-heat conversion membranes with self-healing ability for interfacial solar heating[J].Advanced Materials,2015,27(33):4889. 15 Lang X J, Zhao J C, Chen X D.Visible-light-induced photoredox catalysis of dye-sensitized titanium dioxide: Selective aerobic oxidation of organic sulfides[J].Angewandte Chemie-International Edition,2016,55(15):4697. 16 Zhao Z H, Tian J, Sang Y H, et al.Structure, synthesis, and applications of TiO2 nanobelts[J].Advanced Materials,2015,27(16):2557. 17 Jiang R B, Li B X, Fang C H, et al.Metal/semiconductor hybrid nanostructures for plasmon-enhanced applications[J].Advanced Materials,2014,26(31):5274. 18 Khan S U M, Al-Shahry M, Ingler W B. Efficient photochemical water splitting by a chemically modified n-TiO2[J].Science,2002,297(5590):2243. 19 Chen X B, Liu L, Yu P Y, et al.Increasing solar absorption for photocatalysis with black hydrogenated titanium dioxide nanocrystals[J].Science,2011,331(6018):746. 20 Ou G, Li Z W, Li D K, et al.Photothermal therapy by using titanium oxide nanoparticles[J].Nano Research,2016,9(5):1236. 21 Zhang X Y, Lin Y H, Zhong X X, et al.Fabrication and characteri-zation of Magneli phase Ti4O7 submicron rods[J].Journal of Mate-rials Science-Materials In Electronics,2016,27(5):4861. 22 Smith J R, Walsh F C, Clarke R L.Electrodes based on Magnéli phase titanium oxides: The properties and applications of Ebonex (R) materials[J].Journal of Applied Electrochemistry,1998,28(10):1021. 23 Zhang X Y, Liu Y, Ye J W, et al.Fabrication and characterisation of Magneli phase Ti4O7 nanoparticles[J].Micro & Nano Letters,2013,8(5):251. 24 Leveque G, Martin O J F. Tunable composite nanoparticle for plasmonics[J].Optics Letters,2006,31(18):2750. 25 Li Xiuqiang, Lin Renxing, Ni George, et al.Three-dimensional artificial transpiration for efficient solar waste-water treatment[J].National Science Review,2018,5(1):70. 26 Court A.A new formula for latent-heat of vaporization of water as a function of temperature-comment[J].Quarterly Journal of the Royal Meteorological Society,1986,112(471):283. 27 Granqvist C G.Solar energy materials[J].Advanced Materials,2003,15(21):1789. 28 Khan Z, Khannam M, Vinothkumar N, et al.Hierarchical 3D NiO-CdS heteroarchitecture for efficient visible light photocatalytic hydrogen generation[J].Journal of Materials Chemistry,2012,22(1):1.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2018, Vol. 32 
