Because of the suitable energy band structure,stable physicochemical properties and simple preparation method of g-C3N4 materials,they have been widely used in photocatalytic hydrogen production.The g-C3N4 materials have the problems of high photogenerated charge transfer resistance,low utilization of photogenerated carriers,and insufficient redox active sites on the surface during the photocatalytic reaction.The modification study of g-C3N4 materials to enhance their photocatalytic performance has been a hot research topic in this field.In this paper,we reviewed the modification strategies of g-C3N4 materials in terms of elemental doping,construction of heterojunction and co-catalysts loading,and enumerated the research progress based on g-C3N4 materials in recent years.
[1] Zhang Y C,Ran X L,Fu H T,et al.Band alignment tunning via the facets of CdS nanocrystals with g-C3N4 for unveiling their enhanced photocatalytical property[J].Advanced Functional Materials,2024,2404585.
[2] Rahman M Z,Davey K,Mullins C B.Tuning the intrinsic properties of carbon nitride for high quantum yield photocatalytic hydrogen production[J].Advanced Science,2018,5(10):1800820.
[3] He F,Wang Z,Li Y,et al.The nonmetal modulation of composition and morphology of g-C3N4-based photocatalysts[J].Applied Catalysis B:Environmental,2020,269:118828.
[4] Kong Y,Li D,Zhang C,et al.Synergistic silver doping and N vacancy promoting photocatalytic performances of carbon nitride for pollutant oxidation and hydrogen production[J].Chemical Engineering Journal,2024,479:147676.
[5] Wang K,Yang Y,Farhan S,et al.S-scheme PN junction Na0.6CoO2/g-C3N4 heterostructure as an efficient photocatalyst for green hydrogen production:fabrication,characterization and mechanisms[J].Chemical Engineering Journal,2024,490:151408.
[6] Huang Y J,Xie J Y,Zhang J,et al.Preparation of carbon/Fe-doped g-C3N4 and study on its photocatalytic hydrogen production performance[J].Journal of Molecular Structure,2024,1307:138043.
[7] Saman F,Bahruji H,Mahadi A H,et al.Pd/g-C3N4 photocatalyst for hydrogen production:role of experimental condition for Schottky barrier[J].Fuel,2023,349:128725.
[8] Wu C,Chen Y,Yao Y.Morphology regulation and photocatalytic performance of modified g-C3N4[J].Journal of Materials Science:Materials in Electronics,2024,35(2):183.
[9] Deng P Q,Xiong J S,Lei S J,et al.Nickel formate induced high-level in situ Ni-doping of g-C3N4 for a tunable band structure and enhanced photocatalytic performance[J].Journal of Materials Chemistry A,2019,7(39):22385-22397.
[10] Yu X,Su H,Zou J,et al.Doping-induced metal-N active sites and bandgap engineering in graphitic carbon nitride for enhancing photocatalytic H2 evolution performance[J].Chinese Journal of Catalysis,2022,43(2):421-432.
[11] Ismael M.One-step ultrasonic-assisted synthesis of Ni-doped g-C3N4 photocatalyst for enhanced photocatalytic hydrogen evolution[J].Inorganic Chemistry Communications,2023,151:110607.
[12] Sun S,Li J,Cui J,et al.Simultaneously engineering K-doping and exfoliation into graphitic carbon nitride (g-C3N4) for enhanced photocatalytic hydrogen production[J].International Journal of Hydrogen Energy,2019,44(2):778-787.
[13] Naseri A,Samadi M,Pourjavadi A,et al.Graphitic carbon nitride(g-C3N4)-based photocatalysts for solar hydrogen generation:recent advances and future development directions[J].Journal of Materials Chemistry A,2017,5(45):23406-23433.
[14] Guo Q,Zhang Y,Qiu J,et al.Engineering the electronic structure and optical properties of g-C3N4 by non-metal ion doping[J].Journal of Materials Chemistry C,2016,4(28):6839-6847.
[15] Lin Q,Li Z,Lin T,et al.Controlled preparation of P-doped g-C3N4 nanosheets for efficient photocatalytic hydrogen production[J].Chinese Journal of Chemical Engineering,2020,28(10):2677-2688.
[16] Yan B,Yang G.Enhancing electron density of bulk g-C3N4 through phosphorus doping for promoting photocatalytic hydrogen evolution reaction[J].Applied Surface Science,2021,570:151186.
[17] Wang Q,Tian Y,Chen M,et al.Preparation of porous C doped g-C3N4 nanosheets controlled by acetamide for photocatalytic H2 evolution[J].International Journal of Hydrogen Energy,2022,47(71):30517-30529.
[18] Ismael M.A review on graphitic carbon nitride (g-C3N4) based nanocomposites:synthesis,categories,and their application in photocatalysis[J].Journal of Alloys and Compounds,2020,846:156446.
[19] Tong Z,Yang D,Sun Y,et al.Tubular g-C3N4 isotype heterojunction:enhanced visible-light photocatalytic activity through cooperative manipulation of oriented electron and hole transfer[J].Small,2016,12(30):4093-4101.
[20] Iqbal W,Yang B,Zhao X,et al.Controllable synthesis of graphitic carbon nitride nanomaterials for solar energy conversion and environmental remediation:the road travelled and the way forward[J].Catalysis Science & Technology,2018,8(18):4576-4599.
[21] Jing L Q,Xu Y G,Chen Z G,et al.Different morphologies of SnS2 supported on 2D g-C3N4 for excellent and stable visible light photocatalytic hydrogen generation[J].ACS Sustainable Chemistry & Engineering,2018,6(4):5132-5141.
[22] Rajput Y,Kumar P,Zhang T C,et al.Recent advances in g-C3N4-based photocatalysts for hydrogen evolution reactions[J].International Journal of Hydrogen Energy,2022,47(91):38533-38555.
[23] Chen Z,Guo F,Sun H,et al.Well-designed three-dimensional hierarchical hollow tubular g-C3N4/ZnIn2S4 nanosheets heterostructure for achieving efficient visible-light photocatalytic hydrogen evolution[J].Journal of Colloid and Interface Science,2022,607:1391-1401.
[24] Zhu Y,Wan T,Wen X,et al.Tunable type Ⅰ and Ⅱ heterojunction of CoOx nanoparticles confined in g-C3N4 nanotubes for photocatalytic hydrogen production[J].Applied Catalysis B:Environmental,2019,244:814-822.
[25] Garg T,Goyal A,Kaushik A,et al.State-of-the-art evolution of g-C3N4 based Z-scheme heterostructures towards energy and environmental applications:a review[J].Materials Research Bulletin,2023:112448.
[26] Zhu K L,Wang C J,Luan X X,et al.Efficient charge transfer in Z-scheme g-C3N4/Cu/MoS2 heterojunctions for enhanced photocatalysis and photoenhanced electrocatalysis[J].Advanced Materials Interfaces,2022,9(25):2201114.
[27] Chen F Y,Cheng L,Tang Y B,et al.Construction of Z-scheme heterojunction g-C3N4/CQDs/InVO4 with broad-spectrum response for efficient rhodamine B degradation and H2 evolution under visible light[J].Journal of Chemical Technology & Biotechnology,2021,96(11):3074-3083.
[28] Shen R C,Zhang L,Li N,et al.W-N bonds precisely boost Z-scheme interfacial charge transfer in g-C3N4/WO3 heterojunctions for enhanced photocatalytic H2 evolution[J].ACS Catalysis,2022,12(16):9994-10003.
[29] Bi Z X,Guo R T,Ji X Y,et al.Direct Z-scheme CoS/g-C3N4 heterojunction with NiS co-catalyst for efficient photocatalytic hydrogen generation[J].International Journal of Hydrogen Energy,2022,47(81):34430-34443.
[30] Fu J W,Xu Q L,Low J X,et al.Ultrathin 2D/2D WO3/g-C3N4 step-scheme H2-production photocatalyst[J].Applied Catalysis B:Environmental,2019,243:556-565.
[31] Qian A,Han X,Liu Q N,et al.Photocatalytic hydrogen production from pure water using a IEF-11/g-C3N4 S-scheme heterojunction[J].ChemSusChem,2024,17(6):e202301538.
[32] Wang T Y,Pan X L,He M Y,et al.In situ construction of hollow coral-like porous S-doped g-C3N4/ZnIn2S4 S-scheme heterojunction for efficient photocatalytic hydrogen evolution[J].Advanced Science,2024,11(33):2403771.
[33] Zhang Q,Li Y M,Zhong J B,et al.Facile construction of CuO/g-C3N4 heterojunctions with promoted photocatalytic hydrogen generation behaviors[J].Fuel,2023,353:129224.
[34] Dai B L,Li Y Y,Xu J M,et al.Photocatalytic oxidation of tetracycline,reduction of hexavalent chromium and hydrogen evolution by Cu2O/g-C3N4 S-scheme photocatalyst:performance and mechanism insight[J].Applied Surface Science,2022,592:153309.
[35] Li R J,Li H X,Zhang X D,et al.S-scheme g-C3N4/CdS eterostructures grafting single Pd atoms for ultrafast charge transport and efficient visible-light-driven H2 evolution[J].Advanced Functional Materials,2024,34(38):2402797.
[36] Xiao N,Li S S,Li X L,et al.The roles and mechanism of cocatalysts in photocatalytic water splitting to produce hydrogen[J].Chinese Journal of Catalysis,2020,41(4):642-671.
[37] Zhu Q H,Qiu B C,Duan H,et al.Electron directed migration cooperated with thermodynamic regulation over bimetallic NiFeP/g-C3N4 for enhanced photocatalytic hydrogen evolution[J].Applied Catalysis B:Environmental,2019,259:118078.
[38] Li J X,Xie Y L,Yang S M.AgCo bimetallic cocatalyst modified g-C3N4 for improving photocatalytic hydrogen evolution[J].Journal of Physics and Chemistry of Solids,2024:112119.
[39] Ding F J,Yu H B,Liu W,et al.Au-Pt heterostructure cocatalysts on g-C3N4 for enhanced H2 evolution from photocatalytic glucose reforming[J].Materials & Design,2024,238:112678.
[40] Wang Z H,Peng X F,Tian S S,et al.Enhanced hydrogen production from water on Pt/g-C3N4 by room temperature electron reduction[J].Materials Research Bulletin,2018,104:1-5.
[41] Nazir M A,Najam T,Altaf M,et al.Tuning the photocatalytic hydrogen production via co-catalyst engineering[J].Journal of Alloys and Compounds,2024:174378.
[42] Sun D W,Long C C,Huang J H.Highly dispersed platinum-anchored g-C3N4 nanotubes for photocatalytic hydrogen generation[J].International Journal of Hydrogen Energy,2023,48(3):943-952.
[43] Lv S M,Zhong J B,Li J Z.Enhanced photocatalytic hydrogen evolution performance of Pd/g-C3N4 with carbon vacancies[J].Solid State Sciences,2024:107579.
[44] Zhao Y H,Liu W,Liu P,et al.In situ photodeposition of Au nanoparticle plasma:enhanced defect-state g-C3N4 photocatalytic hydrogen evolution[J].Crystal Growth & Design,2024,24(13):5794-5805.
[45] Chen Y F,Ren X H,Wang X F,et al.Construction of Ag decorated P-doped g-C3N4 nanosheets Schottky junction via silver mirror reaction for enhanced photocatalytic activities[J].International Journal of Hydrogen Energy,2022,47(1):250-263.
[46] Zhang Y Z,Shi J W,Huang Z X,et al.Synchronous construction of CoS2 in-situ loading and S doping for g-C3N4:enhanced photocatalytic H2-evolution activity and mechanism insight[J].Chemical Engineering Journal,2020,401:126135.
[47] Shen R C,He K L,Zhang A P,et al.In-situ construction of metallic Ni3C@Ni core-shell cocatalysts over g-C3N4 nanosheets for shell-thickness-dependent photocatalytic H2 production[J].Applied Catalysis B:Environmental,2021,291:120104.
[48] Fang K,Chen Z W,Wei Y M,et al.Single site Co-S anchored on carbon nitride as a highly active cocatalyst for photocatalytic hydrogen evolution[J].Journal of Alloys and Compounds,2022,925:166257.
[49] Su H W,Yin H B,Wang R,et al.Atomic-level coordination structures meet graphitic carbon nitride (g-C3N4) for photocatalysis:energy conversion and environmental remediation[J].Applied Catalysis B:Environmental,2024:123683.
[50] Zhang Q,Yue M,Chen P,et al.Accelerating photocatalytic hydrogen production by anchoring Pt single atoms on few-layer g-C3N4 nanosheets with Pt-N coordination[J].Journal of Materials Chemistry C,2024,12(10):3437-3449.
[51] Han X,Liu Q N,Qian A,et al.Transition-metal single atom anchored on MoS2 for enhancing photocatalytic hydrogen production of g-C3N4 photocatalysts[J].ACS Applied Materials & Interfaces,2023,15(22):26670-26681.
[52] Touati W,Karmaoui M,Bekka A,et al.Photocatalytic hydrogen generation from a methanol-water mixture in the presence of g-C3N4 and graphene/g-C3N4[J].New Journal of Chemistry,2022,46(43):20679-20690.
[53] Liang J N,Yang X H,Fu H T,et al.Integrating optimal amount of carbon dots in g-C3N4 for enhanced visible light photocatalytic H2 evolution[J].International Journal of Hydrogen Energy,2022,47(41):18032-18043.
[54] Shang Y R,Liu T X,Chen G,et al.Facile synthesis of ultrathin g-C3N4 nanosheets modified with N-doped carbon dots:enhanced photocatalytic hydrogen production activity and mechanism insight[J].International Journal of Hydrogen Energy,2023,48(93):36377-36388.
基金资助
国家自然科学基金(51672081)