石墨相g-C_3N_4聚合物半导体光催化剂
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摘要
半导体光催化技术通过太阳能驱动化学反应净化水体、处理土壤和空气污染物、催化制氢,在解决环境污染和能源短缺等问题上具有重要的应用前景。在光催化技术的推广应用过程中,一种仅由C、N两种元素通过sp~2杂化组成的共轭半导体氮化碳,因其独特的半导体能带结构和优异的化学稳定性,被作为一类不含金属成分的新型可见光催化剂,引起人们的广泛关注。本文介绍石墨相氮化碳的结构、性质及其在光催化领域的一些研究进展。
Semiconductor photocatalysis could drive photocatalytic oxidation-reduction reactions to purify water, remove pollutions in soil and air, catalytic hydrogen production via sunlight. Semiconductor photocatalytic technology was regarded as a effective path to deal with the problem o f environment pollution and energy shortage, In the process of application of photocatalysis technology, conjugated graphitic carbon nitride was a new type of visible light catalyst, only consisted of C and N metal-free elements which through sp~2 hybridization. g-C_3N_4 was widely used owing to the fact of unique semiconductor band structure and excellent chemical stability. In this paper, g-C_3N_4 was described around structure, properties and research progress in photocatalytic field.
Semiconductor photocatalysis could drive photocatalytic oxidation-reduction reactions to purify water, remove pollutions in soil and air, catalytic hydrogen production via sunlight. Semiconductor photocatalytic technology was regarded as a effective path to deal with the problem o f environment pollution and energy shortage, In the process of application of photocatalysis technology, conjugated graphitic carbon nitride was a new type of visible light catalyst, only consisted of C and N metal-free elements which through sp~2 hybridization. g-C_3N_4 was widely used owing to the fact of unique semiconductor band structure and excellent chemical stability. In this paper, g-C_3N_4 was described around structure, properties and research progress in photocatalytic field.
引文
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[16]Pan H,Li X,Zhuang Z,Zhang C.g-C3N4/Si O2-HNb3O8composites with enhanced photocatalytic activities for rhodamine B degradation under visible light[J].Journal of Molecular Catalysis A:Chemical,2011(345):90-95.
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[19]Di Y,Wang X,Thomas A,et al.Making metal carbon nitride heterojunctions for improved photocatalytic hydrogen evolution with visible light[J].Chem.Cat.Chem.,2010(2):834.
[20]Li X,Wang X,Antonietti M.Mesoporous g-C3N4 nanorods as multifunctional supports of ultrafine metal nanoparticles:hydrogen generation from water and reduction of nitrophenol with tandem catalysis in one step[J].Chemical Science,2012(3):2170.
[2]吴星瞳.石墨相氮化碳微纳米材料的制备及光催化性能研究[D]长春:吉林大学,2015.
[3]Thomas A,Fischer A,Goettmann F,et al.Graphitic carbon nitride materials:variation of structure and morphology and their use as metal-free catalysts[J].Journal of Materials Chemistry,2008,18(41):4893-4908.
[4]Kroke E,Sehwarz M,Horath-Bordon E,et al.Tri-s-triazine derivatives.Part I.from trichloro-tri-s-triazine to graphitic C3N4 structures[J].New Journal of Chemistry,2002,26(5):508-512.
[5]Frank S.,Bard A.Heterogeneous photocatalytic oxidation of cyanide and sulfite in aqueous solutions at emiconductor powders[J].Journal Physics Chemistry,1977,81(15):1484-1488.
[6]Wang Z.Zinc oxide nanostructures:growth,properties and applications[J].Journal Physics Condensed Matter,2004,16(25):R829-R858.
[7]Wang X,Maeda K,Thomas A,et al.A metal-free polymeric photocatalyst for hydrogen production from water under visible light[J].Nature Materials,2009,8(1):76-80.
[8]张金水,王博,王心晨.氮化碳聚合物半导体光催化[J].化学进展,2014,26(1):19-29.
[9]郑华荣,张金水,王心晨,付贤智.二氨基马来腈共聚合改性氮化碳光催化剂[J].物理化学学报,2012,28(10):120-126.
[10]Huang C,Chen C,Zhang M,et al.Carbon-doped BN nanosheets for metal-free photoredox catalysis[J].Nat.Commun.,2015(6):7698.
[11]Zhang J,Wang X.Solar Water Splitting atλ=600 nm:a step closer to sustainable hydrogen production[J].Angewandte Chemie International Edition,2015(54):7230-7232..
[12]Min S,Lu G.Enhanced electron transfer from the excited eosin Y to mpg-C3N4 for Highly efficient hydrogen evolution under 550 nm irradiation[J].Journal of Physical Chemistry C,2012(116):19644.
[13]Cui Y,Ding Z,Fu X,Wang X.Solution-construction of conjugated carbon nitride nanoarchitectures at low temperatures for photoredox catalysis[J].Angewandte Chemie International Edition,2012(51):11814.
[14]Takanabe K,Kamata K,Wang X,et al.Photocatalytic hydrogen evolution on dye-sensitized mesoporous carbon nitride photocatalyst with magnesium phthalocyanine[J].Physical Chemistry Chemical Physics,2010(12):13020.
[15]Sun L,Zhao X,Jia C,et al.Enhanced visible-light photocatalytic activity of g-C3N4-Zn WO4 by fabricating a heterojunction:investigation based on experimental and theoretical studies[J].Journal Materials Chemistry,2012(22):23428.
[16]Pan H,Li X,Zhuang Z,Zhang C.g-C3N4/Si O2-HNb3O8composites with enhanced photocatalytic activities for rhodamine B degradation under visible light[J].Journal of Molecular Catalysis A:Chemical,2011(345):90-95.
[17]Yan S,Lv S,Li Z,et al.Organic–inorganic composite photocatalyst of g-C3N4 and Ta ON with improved visible light photocatalytic activities[J].Dalton Transactions,2010(39):1488.
[18]Sun J,Yuan Y,Qiu L,et al.Fabrication of composite photocatalyst g-C3N4-Zn O and enhancement of photocatalytic activity under visible light[J].Dalton Transactions,2012(41):6756.
[19]Di Y,Wang X,Thomas A,et al.Making metal carbon nitride heterojunctions for improved photocatalytic hydrogen evolution with visible light[J].Chem.Cat.Chem.,2010(2):834.
[20]Li X,Wang X,Antonietti M.Mesoporous g-C3N4 nanorods as multifunctional supports of ultrafine metal nanoparticles:hydrogen generation from water and reduction of nitrophenol with tandem catalysis in one step[J].Chemical Science,2012(3):2170.