碳量子点-二氧化钛复合光催化剂的研究进展

doi:10.11896/j.issn.1005-023X.2018.19.009

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (2224KB)
Export: BibTeX | EndNote (RIS)

Abstract With the photocatalytic technology, people can make further progress in tackling the potential threat of environmental pollution and energy shortage, by effectively utilize solar energy to degrade pollutants in water or atmosphere and to generate hydrogen via photocatalyzed water splitting reactions. Titanium dioxide (TiO₂), currently the most widely used photocatalyst with excellent photocatalytic activity, high chemical stability, low price and non-toxicity, suffers great limitation in application due to its wide band gap and rapid recombination of electrons and holes. Over the past decade or more, researchers have developed a series of methods to improve the photocatalytic activity of TiO₂, including adjusting TiO₂ crystal and morphology, sensitizing TiO₂ using quantum dot or organic dye, depositing precious metal on catalyst surface, doping transition metal ion or non-metal ion.
The sensitization of TiO₂ with quantum dot refers to the combination of TiO₂ and quantum dots, which can adjust the band width of TiO₂, broaden the photoresponse range of the photocatalyst. However, the traditional quantum dots mostly contain toxic heavy metal ions, and will no doubt be a hazard to environment and human health. This urges intensive research efforts to seek non-toxic fluorescent nanomaterials, among which carbon quantum dots (CDs or CQDs) have displayed impressive potential and representativeness. CDs, consisting of sp²/sp³ hybridized carbon atoms and holding various surface functional groups, enjoy the advantages of abundant ingredient, stable physical and chemical performance, non-toxicity, good biocompatibility, ease of functionalization, and excellent resistance to photobleaching, compared with the traditional quantum dots. In addition, CDs possess photoinduced electron transfer character and photosensitivity, and part of them display excellent up-conversion photoluminescence. By integrating CDs and TiO₂, we can obtain CDs-TiO₂ composite photocatalyst which surpasses the traditional hazardous quantum dots by virtue of its low toxicity. And on the other hand, it has an enhanced ultraviolet light absorption, and also extended visible light absorption and near-infrared light absorption, and moreover, can inhibit the recombination of photogenerated electrons and holes, thus effectively promoting the photocatalytic performance and having broad application prospects in the field of photocatalysis.
Previous works intend to improve the photocatalytic activity of CDs-TiO₂ photocatalysts mainly from the prospectives of regulating TiO₂ and regulating CDs. The former mainly includes the adjustment of TiO₂ crystal and crystal surface, the control of TiO₂ morphology and the hybridization of TiO₂. The latter mainly includes the hybridization of CDs, the change of the particle size and loading capacity of CDs. This review analyzes the hypothesized photocatalytic mechanism of CDs-TiO₂ composite photocatalysts, and describes the research results with respect to the above mentioned regulation methods. Finally, it briefly discusses the preparation and application of CDs-TiO₂ as well as the future development trend.

Key words： carbon quantum dots titanium dioxide photocatalyst

Published: 18 October 2018

CLC number:

TQ174

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Chunlai
	LI Fan
	YANG Kun
	LIU Changjun
	TIAN Feng

Cite this article:

WANG Chunlai,LI Fan,YANG Kun, et al. Materials Research Progress on Carbon Quantum Dots TitaniumDioxide Composite Photocatalysts[J]. Materials Reports, 2018, 32(19): 3348-3357.

URL:

http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.19.009 OR http://www.mater-rep.com/EN/Y2018/V32/I19/3348

1 Lee K M, Lai C W, Ngai K S, et al. Recent developments of zinc oxide based photocatalyst in water treatment technology: A review[J].Water Research,2016,88:428.
2 Zhang J, Xiao G, Xiao F X, et al. Revisiting one-dimensional TiO₂ based hybrid heterostructures for heterogeneous photocatalysis: A critical review[J].Materials Chemistry Frontiers,2017,1:231.
3 Bhanvase B A, Shende T P, Sonawane S H. A review on graphene-TiO₂ and doped graphene-TiO₂ nanocomposite photocatalyst for water and wastewater treatment[J].Environmental Technology Reviews,2017,6(1):1.
4 Yun H J, Paik T, Diroll B, et al. Nanocrystal size-dependent efficiency of quantum dot sensitized solar cells in the strongly coupled CdSe nanocrystals/TiO₂ system[J].ACS Applied Materials and Interfaces,2016,8(23):14692.
5 Sudhakar C, Selvankumar T, Selvam K, et al. Bauhinia purpurea L. flower mediated dye used as sensitizers for TiO₂ based dye-sensitized solar cells[J].International Journal of Advanced Science and Engineering,2016,2(4):209.
6 Tang Y, Hao R, Fu Y, et al. Carbon quantum dot/mixed crystal TiO₂ composites via a hydrogenation process: An efficient photoca-talyst for the hydrogen evolution reaction[J].RSC Advances,2016,6(99):96803.
7 Du G, Yuan J, Zhu C. Hierarchical nanostructures of Ag₃PO₄ on TiO₂ nanofibers with enhanced photocatalytic activity for the degradation of rhodamine B[J].Journal of Materials Science: Materials in Electronics,2017,28(10):7307.
8 Choi Y, Kim H, Moon G, et al. Boosting up the low catalytic activity of silver for H₂ production on Ag/TiO₂ photocatalyst: Thiocyanate as a selective modifier[J].ACS Catalysis,2016,6(2):821.
9 Xu M, Wang Y, Geng J, et al. Photodecomposition of NO_xon Ag/TiO₂ composite catalysts in a gas phase reactor[J].Chemical Engineering Journal,2017,307:181.
10 Du J, Wang H, Chen H, et al. Synthesis and enhanced photocataly-tic activity of black porous Zr-doped TiO₂ monoliths[J].Nano,2016,11(6):1650068.
11 Chen X, Xie Z, Liang Y, et al. Hybridizing TiO₂ with nitrogen-doped carbon: A new route to a highly visible light-active photocatalyst[J].Chemistry Select,2017,2(4):1565.
12 Xu X, Song W. Enhanced H₂ production activity under solar irradiation over N-doped TiO₂ prepared using pyridine as a precursor: A typical sample of N-doped TiO₂ series[J].Materials Technology,2017,32(1):52.
13 Benítez-martínez S, Valcárcel M. Graphene quantum dots in analytical science[J].TrAC Trends in Analytical Chemistry,2015,72:93.
14 Yu H, Shi R, Zhao Y, et al. Smart utilization of carbon dots in semi-conductor photocatalysis[J].Advanced Materials,2016,28(43):9454.
15 Liu Y, Yu Y X, Zhang W D. Carbon quantum dots-doped CdS microspheres with enhanced photocatalytic performance[J].Journal of Alloys and Compounds,2013,569:102.
16 Ming H, Ma Z, Liu Y, et al. Large scale electrochemical synthesis of high quality carbon nanodotsand their photocatalytic property[J].Dalton Transactions,2012,41(31):9526.
17 Cao L, Sahu S, Anilkumar P, et al. Carbon nanoparticles as visible-light photocatalysts for efficient CO₂ conversion and beyond[J].Journal of the American Chemical Society,2011,133(13):4754.
18 Li H, Liu R, Lian S, et al. Near-infrared light controlled photocatalytic activity of carbon quantum dots for highly selective oxidation reaction[J].Nanoscale,2013,5(8):3289.
19 Li H, Liu R, Liu Y, et al. Carbon quantum dots/Cu₂O composites with protruding nanostructures and their highly efficient (near) infrared photocatalytic behavior[J].Journal of Materials Chemistry,2012,22(34):17470.
20 Wang H, Wei Z, Matsui H, et al. Fe₃O₄/carbon quantum dots hybrid nanoflowers for highly active and recyclable visible-light driven photocatalyst[J].Journal of Materials Chemistry A,2014,2(38):15740.
21 Xie S, Su H, Wei W, et al. Remarkable photoelectrochemical performance of carbon dots sensitized TiO₂ under visible light irradiation[J].Journal of Materials Chemistry A,2014,2(39):16365.
22 Huang Z, Fang L, Dong W, et al. Design and fabrication of carbon quantum dots/TiO₂ photonic crystal complex with enhanced photocatalytic activity[J].Journal of Nanoscience and Nanotechnology,2014,14(6):4156.
23 Li H, He X, Kang Z, et al. Water-soluble fluorescent carbon quantum dots and photocatalyst design[J].Angewandte Chemie International Edition,2010,49(26):4430.
24 Li H, Zhu Y, Cao H, et al. Preparation and characterization of photocatalytic carbon dots-sensitized electrospun titania nanostructured fibers[J].Materials Research Bulletin,2013,48(2):232.
25 Zhou Q, Zhou J, Zeng M, et al. Photoelectrochemical performance of quantum dot-sensitized TiO₂ nanotube arrays: A study of surface modification by atomic layer deposition coating[J].Nanoscale Research Letters,2017,12(1):261.
26 Zhuo S, Shao M, Lee S T. Upconversion and downconversion fluorescent graphene quantum dots: Ultrasonic preparation and photocatalysis[J].ACS Nano,2012,6(2):1059.
27 Pan J, Liu G, Lu G Q M, et al. On the true photoreactivity order of {001},{010}, and {101} facets of anatase TiO₂ crystals[J].Angewandte Chemie International Edition,2011,50(9):2133.
28 Maitani M M, Tanaka K, Mochizuki D, et al. Enhancement of photoexcited charge transfer by {001} facet-dominating TiO₂ nanoparticles[J].The Journal of Physical Chemistry Letters,2011,2(20):2655.
29 Yu X, Liu J, Yu Y, et al. Preparation and visible light photocataly-tic activity of carbon quantum dots/TiO₂ nanosheet composites[J].Carbon,2014,68:718.
30 Xue J, Song F, Yin X W, et al. Cellulose nanocrystal-templated synthesis of mesoporous TiO₂ with dominantly exposed (001) facets for efficient catalysis[J].ACS Sustainable Chemistry and Engineering,2017,5(5):3721.
31 Wang W, Ni Y, Xu Z. One-step uniformly hybrid carbon quantum dots with high-reactive TiO₂ for photocatalytic application[J].Journal of Alloys and Compounds,2015,622:303.
32 Tian J, Leng Y, Zhao Z, et al. Carbon quantum dots/hydrogenated TiO₂nanobelt heterostructures and their broad spectrum photocatalytic properties under UV, visible, and near-infrared irradiation[J].Nano Energy,2015,11:419.
33 Liu R, Li H, Duan L, et al. In situ synthesis and enhanced visible light photocatalytic activity of C-TiO₂ microspheres/carbon quantum dots[J].Ceramics International,2017,43(12):8648.
34 Yu H, Zhao Y, Zhou C, et al. Carbon quantum dots/TiO₂ compo-sites for efficient photocatalytic hydrogen evolution[J].Journal of Materials Chemistry A,2014,2(10):3344.
35 Pan J, Sheng Y, Zhang J, et al. Preparation of carbon quantum dots/TiO₂ nanotubes composites and their visible light catalytic applications[J].Journal of Materials Chemistry A,2014,2(42):18082.
36 Qu A, Xie H, Xu X, et al. High quantum yield graphene quantum dots decorated TiO₂ nanotubes for enhancing photocatalytic activity[J].Applied Surface Science,2016,375:230.
37 Zhang Y Q, Ma D K, Zhang Y G, et al. N-doped carbon quantum dots for TiO₂-based photocatalysts and dye-sensitized solar cells[J].Nano Energy,2013,2(5):545.
38 Liu J, Zhu W, Yu S, et al. Three dimensional carbogenic dots/TiO₂ nanoheterojunctions with enhanced visible light-driven photocatalytic activity[J].Carbon,2014,79:369.
39 Dai Y, Long H, Wang X, et al. Versatile graphene quantum dots with tunable nitrogen doping[J].Particle and Particle Systems Cha-racterization,2014,31(5):597.
40 Safardoust-hojaghan H, Salavati-niasari M. Degradation of methy-lene blue as a pollutant with N-doped graphene quantum dot/titanium dioxide nanocomposite[J].Journal of Cleaner Production,2017,148:31.
41 Qu D, Zheng M, Du P, et al. Highly luminescent S, N co-doped graphene quantum dots with broad visible absorption bands for visible light photocatalysts[J].Nanoscale,2013,5(24):12272.
42 Qu D, Sun Z, Zheng M, et al. Three colors emission from S, N co-doped graphene quantum dots for visible light H₂ production and bioimaging[J].Advanced Optical Materials,2015,3(3):360.
43 Ma Z, Zhang Y L, Wang L, et al. Bio-inspired photoelectric conversion system based on carbon quantum dot doped dye-semiconductor complex[J].ACS Applied Materials and Interfaces,2013,5(11):5080.
44 Bian J, Huang C, Wang L, et al. Carbon dot loading and TiO₂ nanorod length dependence of photoelectrochemical properties in carbon dot/TiO₂ nanorod array nanocomposites[J].ACS Applied Materials and Interfaces,2014,6(7):4883.
45 Long R, Casanova D, Fang W H, et al. Donor-acceptor interaction determines the mechanism of photoinduced electron injection from graphene quantum dots into TiO₂: π-stacking supersedes covalent bonding[J].Journal of the American Chemical Society,2017,139(7):2619.
46 Miao R, Luo Z, Zhong W, et al. Mesoporous TiO₂ modified with carbon quantum dots as a high-performance visible light photocatalyst[J].Applied Catalysis B: Environmental,2016,189:26.
47 Chen J, Shu J, Anqi Z, et al. Synthesis of carbon quantum dots/TiO₂ nanocomposite for photo-degradation of rhodamine B and cefradine[J].Diamond and Related Materials,2016,70:137.
48 Ke J, Li X, Zhao Q, et al. Upconversion carbon quantum dots as visible light responsive component for efficient enhancement of photocatalytic performance[J].Journal of Colloid and Interface Science,2017,496:425.
49 Li F, Tian F, Liu C, et al. One-step synthesis of nanohybrid carbon dots and TiO₂ composites with enhanced ultraviolet light active photocatalysis[J].RSC Advances,2015,5(11):8389.
50 Hou Y, Lu Q, Wang H, et al. One-pot electrochemical synthesis of carbon dots/TiO₂ nanocomposites with excellent visible light photocatalytic activity[J].Materials Letters,2016,173:13.
51 Wang J, Gao M, Ho G W. Bidentate-complex-derived TiO₂/carbon dot photocatalysts: In situ synthesis, versatile heterostructures, and enhanced H₂ evolution[J].Journal of Materials Chemistry A,2014,2(16):5703.
52 Wang J, Ng Y H, Lim Y F, et al. Vegetable-extracted carbon dots and their nanocomposites for enhanced photocatalytic H₂ production[J].RSC Advances,2014,4(83):44117.
53 Zhang X, Wang F, Huang H, et al. Carbon quantum dot sensitized TiO₂ nanotube arrays for photoelectrochemical hydrogen generation under visible light[J].Nanoscale,2013,5(6):2274.
54 Yu X, Liu R, Zhang G, et al. Carbon quantum dots as novel sensitizers for photoelectrochemical solar hydrogen generation and theirsize-dependent effect[J].Nanotechnology,2013,24(33):335401.
55 Wei J, Li X D, Wang H Z, et al. Nitrogen doped carbon quantum dots/titanium dioxide composites for hydrogen evolution under sunlight[J].Journal of Inorganic Materials,2015,30(9):925(in Chinese).
魏婕,李雪冬,王宏志,等.NCDs/TiO₂复合材料的制备及其在太阳光下催化制氢的应用[J].无机材料学报,2015,30(9):925.
56 Saud P S, Pant B, Alam A M, et al. Carbon quantum dots anchored TiO₂ nanofibers: Effective photocatalyst for waste water treatment[J].Ceramics International,2015,41(9):11953.
57 Sun M, Ma X, Chen X, et al. A nanocomposite of carbon quantum dots and TiO₂ nanotube arrays: Enhancing photoelectrochemical and photocatalytic properties[J].RSC Advances,2014,4(3):1120.
58 Mirtchev P, Henderson E J, Soheilnia N, et al. Solution phase synthesis of carbon quantum dots as sensitizers for nanocrystalline TiO₂ solar cells[J].Journal of Materials Chemistry,2012,22(4):1265.
59 Zhang X, Liu C, Li Z, et al. An easily prepared carbon quantum dots and employment for inverted organic photovoltaic devices[J].Chemical Engineering Journal,2017,315:621.
60 Li H, Shi W, Huang W, et al. Carbon quantum dots/TiO_x electron transport layer boosts efficiency of planar heterojunction perovskite solar cells to 19%[J].Nano Letters,2017,17(4):2328.
61 Jin J, Chen C, Li H, et al. Enhanced performance and photostability of perovskite solar cells by introduction of fluorescent carbon dots[J].ACS Applied Materials and Interfaces,2017,9(16):14518.
62 Ming H, Yan Y, Ming J, et al. Porous TiO₂ nanoribbons and TiO₂ nanoribbon/carbon dot composites for enhanced Li-ion storage[J].RSC Advances,2014,4(25):12971.
63 Wang F, Zhang Y, Liu Y, et al. Opto-electronic conversion logic behaviour through dynamic modulation of electron/energy transfer states at the TiO₂-carbon quantum dot interface[J].Nanoscale,2013,5(5):1831.
64 Le Z, Liu F, Nie P, et al. Pseudocapacitive sodium storage in mesoporous single-crystal-like TiO₂-graphene nanocomposite enables high-performance sodium-ion capacitors[J].ACS Nano,2017,11(3):2952.