Facile synthesis of nano­Zn2GeO4 for efficient photocatalytic conversion of CO2 into CH4

Wan Lijuan1,2,Yang Ming3*

Journal of Nanjing University(Natural Sciences) ›› 2017, Vol. 53 ›› Issue (3) : 610.

PDF(2823708 KB)
PDF(2823708 KB)
Journal of Nanjing University(Natural Sciences) ›› 2017, Vol. 53 ›› Issue (3) : 610.

Facile synthesis of nano­Zn2GeO4 for efficient photocatalytic conversion of CO2 into CH4

  • Wan Lijuan1,2,Yang Ming3*
Author information +
History +

Abstract

Zn2GeO4 nanorods and nanoparticles were prepared by a solution phase route.The as­prepared products were characterized by X­ray powder diffraction(XRD),scanning electron microscopy(SEM),high­resolution transmission electron microscopy(HRTEM),inductively coupled plasma atomic emission spectrometer(ICP­AES),UV­vis diffuse reflection spectroscopy,photoluminescence(PL) spectroscopy and Brunauer­Emmett­Teller(BET) surface area measurements.Nano­Zn2GeO4 has higher photocatalytic activity in photoreduction of CO2 than Zn2GeO4 prepared through solid­state reaction due to the higher surface area.Zn2GeO4 nanorods show higher photoreduction performance than Zn2GeO4 nanoparticles due to the strong CO2 gas adsorption.

Cite this article

Download Citations
Wan Lijuan1,2,Yang Ming3*. Facile synthesis of nano­Zn2GeO4 for efficient photocatalytic conversion of CO2 into CH4[J]. Journal of Nanjing University(Natural Sciences), 2017, 53(3): 610

References

[1] Meng S,Ren J.Kaxiras E.Natural dyes adsorbed on TiO2 nanowire for photovoltaic applications:Enhanced light absorption and ultrafast electron injection.Nano Letters,2008,8(10):3266-3272.  [2] Liu Z Q,Zhang D H,Han S,et al.Laser ablation synthesis and electron transport studies of tin oxide nanowires.Advanced Materials,2003,15(20):1754-1757. [3] Fang X S,Bando Y,Liao M Y,et al.Single­crystalline ZnS nanobelts as ultraviolet­light sensors.Advanced Materials,2009,21(20):2034-2039. [4] Wan L J,Wang X Y,Yan S C,et al.ZnO plates synthesized from the ammonium zinc nitrate hydroxide precursor.CrystEngComm,2012,14:154-159. [5] Steven R,Woodfield B F,Boerio­Goates J,et al.Heat capacities,third­law entropies and thermodynamic function of the negative thermal expansion material Zn2GeO4 from T=(0 to 400)K.The Journal of Chemical Thermodynamics,2004,36(5):349-357. [6] Yan C,Singh N,Lee P S.Wide­bandgap nanowire networks as efficient ultraviolet photodetectors with fast response and recovery time.Applied Physics Letters,2010,96(5):053108. [7] Liu Z S,Jing X P,Wang L X.Luminescence of native defects in Zn2GeO4.Journal of the Electrochemical Society,2007,154(6):H500-H506. [8] Tsai M Y,Yu C Y,Wang C C,et al.Water­driven formation of luminescent Zn2GeO4 nanorods from Zn­containing Ge nanoparticles.Crystal Growth & Design,2008,8(7):2264-2269. [9] Liu Q,Zhou Y,Kou J H,et al.High­yield synthesis of ultralong and ultrathin Zn2GeO4 nanoribbons toward improved photocatalytic reduction of CO2 into renewable hydrocarbon fuel.Journal of the American Chemistry Society,2010,132(41):14385-14387. [10] Sato J,Kobayashi H,Ikarashi K,et al.Photocatalytic activity for water decomposition of RuO2­dispersed Zn2GeO4 with d10 configura­tion.Journal of Physical Chemistry B,2004,108(14):4369-4375. [11] Huang J H,Ding K N,Hou Y D,et al.Synthesis and photocatalytic activity of Zn2GeO4 nanorods for degradation of organic pollutants in water.ChemSusChem,2008,1(12):1011-1019. [12] Huang J H,Wang X C,Hou Y D,et al.Degradation of benzene over a zinc germanate photocatalyst under ambient conditions.Environmental Science & Technology,2008,42(19):7387-7391. [13] Yan C,Lee P S.Crystallographic alignment of ZnO nanorod arrays on Zn2GeO4 nanocrystals:Promising lattice­matched substrates.Journal of Physical Chemistry C,2010,114(1):265-268. [14] Liu J,Zhang G K.Template­free synthesis and high photocatalytic activity of hierarchical Zn2GeO4 microspheres.CrystEngComm,2013,15(2):382-389. [15] Sun Y G,Yu L,Rao P H.Rational growth of ternary Zn2GeO4 nanorods and self­assembled hierarchical nanostructures.Journal of Crystal Growth,2012,347(1):73-76. [16] Boppana V B R,Hould N D,Lobo R F.Synthesis,characterization and photocatalytic properties of novel zinc germanate nano­materials.Journal of Solid State Chemistry,2011,184(5):1054-1062. [17] Pei L Z,Yang Y,Yang L J,et al.Large­scale synthesis and the roles of growth conditions on the formation of Zn2GeO4 nanorods.Solid State Communications,2011,151(14-15):1036-1041.  [18] Xu J,Wang C R,Zhang Y,et al.Structural,vibrational and luminescence properties of longitudinal twinning Zn2GeO4 nanowires.CrystEngComm,2013,15(4):764-768. [19] Yan C Y,Lee P S.Synthesis and structure characterization of ternary Zn2GeO4 nanowires by chemical vapor transport.Journal of Physical Chemistry C,2009,113(32):14135-14139. [20] Yi R,Feng J K,Lv D P,et al.Amorphous Zn2GeO4 nanoparticles as anodes with high reversible capacity and long cycling life for Li­ion batteries.Nano Energy,2013,2(4):498-504. [21] Feng Y,Li X D,Shao Z P,et al.Morphology­dependent performance of Zn2GeO4 as a high­performance anode material for rechargeable lithium ion batteries.Journal of Materials Chemistry A,2015,3:15274-15279. [22] Xia Y N,Yang P D,Sun Y G,et al.One­dimensional nanostructures:Synthesis,characterization,and applications.Advanced Materials,2003,15(5):353-389. [23] Sun Y G,Hu J Q,Chen Z G,et al.Prospective important semiconducting nanotubes:Synthesis,properties and applications.Journal of Materials Chemistry,2009,19(41):7592-7605. [24] Zhou Y,Kogiso M,Shimizu T.Necklace­like chains of hybrid nanospheres consisting of Pd nanocystals and peptidic lipids.Journal of the American Chemistry Society,2009,131(7):2456-2457. [25] Zhang N,Ouyang S X,Li P,et al.Ion­exchange synthesis of a micro/mesoporous Zn2GeO4 photocatalyst at room temperature for photore­duction of CO2.Chemical Communications,2011,47(7):2041-2043. [26] Liu Q,Zhou Y,Tian Z P,et al.Zn2GeO4 crystal splitting toward sheaf­like,hyperbranched nanostructures and photocatalytic reduction of CO2 into CH4 under visible light after nitridation.Journal of Materials Chemistry,2012,22(5):2033-2038. [27] Yan S C,Wan L J,Li Z S,et al.Facile temperature­controlled synthesis of hexagonal Zn2GeO4 nanorods with different aspect ratios toward improved photocatalytic activity for overall water splitting and photoreduction of CO2.Chemical Communications,2011,47(19):5632-5634. [28] Yang M,Jin X Q.Facile synthesis of Zn2GeO4 nanorods toward improved photocatalytic reduction of CO2 into renewable hydrocarbon fuel.Journal of Central South University,2014,21(7):2837-2842. [29] Indrakanti V P,Kubicki J D,Schobert H H.Photoinduced activation of CO2 on Ti­based heterogeneous catalysts:Current state,chemical physics­based insights and outlook.Energy & Environmental Science,2009,2(7):745-758. [30] Xu Y,Schoonen M A A.The absolute energy positions of conduction and valence bands of selected semiconducting minerals.American Mineralogist,2000,85(3-4):543-556.
PDF(2823708 KB)

1481

Accesses

0

Citation

Detail

Sections
Recommended

/