Research progress on factors affecting heterogeneous photocatalytic degradation of organic pollutants over titanium dioxide
WAN Yan1, WEI Ren-xing1, LU Ting2, WEI Shun-an1, JI Jin-gou1, XIE Fang-kui3
1. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China; 2. Chongqing Ba'nan District Ecological Environmental Monitoring Centre, Chongqing 401320, China; 3. Chongqing Xingyu Paint Co., Ltd., Chongqing 400009, China
Abstract: This paper introduces the latest research progress on the factors affecting the heterogeneous photocatalytic degradation of organic pollutants over TiO2 and the effects of pH,additives and other factors on the heterogeneous photocatalytic degradation over TiO2.More ·OH can be generated in a solution with a higher pH,therefore the catalyst will exhibit stronger photocatalytic degradation performance even if the electrostatic attraction between TiO2 and pollutants is weaker.Particularly,the TiO2 heterogeneous photocatalytic technology is not suitable for treating with high concentration organic wastewater,but has potential development in treatment of emerging contaminants with low concentration and high toxicity.
万燕, 魏任星, 卢挺, 魏顺安, 季金苟, 谢方奎. 二氧化钛多相光催化降解有机污染物影响因素研究进展[J]. 现代化工, 2018, 38(5): 53-56,58.
WAN Yan, WEI Ren-xing, LU Ting, WEI Shun-an, JI Jin-gou, XIE Fang-kui. Research progress on factors affecting heterogeneous photocatalytic degradation of organic pollutants over titanium dioxide. Modern Chemical Industry, 2018, 38(5): 53-56,58.
 Rimoldi L,Meroni D,Falletta E,et al.The role played by different TiO2 features on the photocatalytic degradation of paracetamol[J].Applied Surface Science,2017,424:198-205.  Iikaeva M,Krivtsov I,Diaz E,et al.Photocatalytic degradation of 2-(4-methylphenoxy)ethanol over TiO2 spheres[J].J Hazard Mater,2017,332:59-69.  Ambrosio E,Lucca D L,Garcia M H,et al.Optimization of photocatalytic degradation of biodiesel using TiO2/H2O2 by experimental design[J].Sci Total Environ,2017,581-582:1-9.  Babi Ać1 S, AĆG1 urkovi Ać1 L,Ljubas D,et al.TiO2 assisted photocatalytic degradation of macrolide antibiotics[J].Current Opinion in Green and Sustainable Chemistry,2017,6:34-41.  Murgolo S,Yargeau V,Gerbasi R,et al.A new supported TiO2 film deposited on stainless steel for the photocatalytic degradation of contaminants of emerging concern[J].Chemical Engineering Journal,2017,318:103-111.  Ramirez-sanchez I M,Tuberty S,Hambourger M,et al.Resource efficiency analysis for photocatalytic degradation and mineralization of estriol using TiO2 nanoparticles[J].Chemosphere,2017,184:1270-1285.  Luttrell T,Halpegamage S,Tao J G,et al.Why is anatase a better photocatalyst than rutile?——Model studies on epitaxial TiO2 films[J].Scientific Reports,2014,4:4043.  Li Z,Cong S,Xu Y M.Brookite vs Anatase TiO2 in the photocatalytic activity for organic degradation in water[J].ACS Catalysis,2014,4(9):3273-3280.  Suwannaruang T,Rivera K K P,Neramittagapong A,et al.Effects of hydrothermal temperature and time on uncalcined TiO2 synthesis for reactive red 120 photocatalytic degradation[J].Surface and Coatings Technology,2015,271:192-200.  Tada H,Jin Q L,Iwaszuk A,et al.Molecular-scale transition metal oxide nanocluster surface-modified titanium dioxide as solar-activated environmental catalysts[J].The Journal of Physical Chemistry C,2014,118(23):12077-12086.  Pfeifer V,Erhart P,Li S Y,et al.Energy band alignment between anatase and rutile TiO2[J].The Journal of Physical Chemistry Letters,2013,4(23):4182-4187.  Xu H F,Li G,Zhu G,et al.Enhanced photocatalytic degradation of rutile/anatase TiO2 heterojunction nanoflowers[J].Catalysis Communications,2015,62:52-56.  Cong S,Xu Y M.Explaining the high photocatalytic activity of a mixed phase TiO2:A combined effect of O2 and crystallinity[J].The Journal of Physical Chemistry C,2011,115(43):21161-21168.  Khan S B,Hou M J,Shuang S,et al.Morphological influence of TiO2 nanostructures (nanozigzag,nanohelics and nanorod) on photocatalytic degradation of organic dyes[J].Applied Surface Science,2017,400:184-193.  Dariani R S,Esmaeili A,Mortezaali A,et al.Photocatalytic reaction and degradation of methylene blue on TiO2 nano-sized particles[J].Optik-International Journal for Light and Electron Optics,2016,127(18):7143-7154.  Soto-vazquez L,Cotto M,Duconge J,et al.Synthesis and photocatalytic activity of TiO2 nanowires in the degradation of p-aminobenzoic acid:A comparative study with a commercial catalyst[J].J Environ Manage,2016,167:23-28.  Nguyen A T,Juang R S.Photocatalytic degradation of p-chlorophenol by hybrid H2O2 and TiO2 in aqueous suspensions under UV irradiation[J].J Environ Manage,2015,147:271-277.  Amalraj A,Pius A.Photocatalytic degradation of monocrotophos and chlorpyrifos in aqueous solution using TiO2 under UV radiation[J].Journal of Water Process Engineering,2015,7:94-101.  Friedmann D,Mendive C,Bahnemann D.TiO2 for water treatment:Parameters affecting the kinetics and mechanisms of photocatalysis[J].Applied Catalysis B:Environmental,2010,99(3/4):398-406.  Jia Z,Lalb T,Zhang W C,et al.Strong enhancement on dye photocatalytic degradation by ball-milled TiO2:A study of cationic and anionic dyes[J].Journal of Materials Science & Technology,2017,33(8):856-863.  Maeng S K,Cho K,Jeong B,et al.Substrate-immobilized electrospun TiO2 nanofibers for photocatalytic degradation of pharmaceuticals:The effects of pH and dissolved organic matter characteristics[J].Water Res,2015,86:25-34.  Melián E P,Díaz O G,Rodríguez J M D,et al.Adsorption and photocatalytic degradation of 2,4-dichlorophenol in TiO2 suspensions.Effect of hydrogen peroxide,sodium peroxodisulphate and ozone[J].Applied Catalysis A:General,2013,455:227-233.  Herrmann J M.Heterogeneous photocatalysis:Fundamentals and applications to the removal of various types of aqueous pollutants[J].Catalysis Today,1999,53:115-129.  Vinodgopa K,Kamat P V.Photochemistry on surfaces.photodegradation of 1,3-diphenyiisobenzofuran over metal oxide particles[J].J Phys Chem,1992,96:5053-5059.  Harimurti S,Rahmah A U,Omar A A,et al.Application of response surface method in the degradation of wastewater containing MDEA using UV/H2O2 advanced oxidation process[J].Applied Scienves,2012,12(11):1093-1099.  Herrmann J M.Photocatalysis fundamentals revisited to avoid several misconceptions[J].Applied Catalysis B:Environmental,2010,99(3/4):461-468.  郭璐瑶.纳米二氧化钛分散及其表面改性研究[D].上海:东华大学,2015.