REDUCTION OF CO2 BY Cu2O/MnCo2O4 HETEROJUNCTION NANO-PHOTOCATALYST

Abstract

Abstract: Z-type heterojunction photocatalyst is favored by researchers because of strong charge separation ability of conduction band and valence band, and strong oxidation- reduction ability. Z-type Cu₂O/MnCo₂O₄ heterojunction nano-photocatalysts were prepared by hydrothermal method, their physical and chemical properties were characterized in detail, and their photocatalytic CO₂ reduction performance was evaluated. The characteristic results of XRD, HRTEM, UV vis, PL and EIS showed that compared with MnCo₂O₄ nano-particles,Cu₂O/MnCo₂O₄eterojunction nano-photocatalyst could improve the visible light absorption performance, reduce the band gap, delay the recombination of electron-hole pairs effectively, and reduce the transfer resistance of electron-hole pairs, which confirmed that heterojunction nano-structures could effectively improve the photocatalytic activity for CO₂. The evaluation results of photocatalytic reduction of CO₂ showed that heterojunction nano-photocatalyst with 15%（w) Cu₂O content had the best photocatalytic activity for CO₂ reduction, and the CO yield was 98.6 μmol/g, the yield of CH₄ was 68.4 μmol/g, and its catalytic activity remained unchanged after 6 times of recycling uses.

Key words: hotocatalytic, CO₂ reduction, Cu₂O, MnCo₂O₄, Z-type heterojunction, CO, CH₄

References

[1]Schrag D P. Preparing to capture carbon[J]. Science，2007，315（5813）：812-813
[2]Yuan Dandan，Yan Cuihong，Lu Bin，et al. Electroc- hemical activation of carbon dioxide for synthesis of dimethyl carbonate in an ionic liquid Electrochim[J]. Electrochimica Acta，2009，54（10）：2912-2915
[3]Whipple D T，Kenis P. Prospects of CO2 Utilization via Direct Heterogeneous Electrochemical Reduction[J]. The Journal of Physical Chemistry Letters，2010，1（24）：3451-3458
[4]Handoko A D，Tang Junwang. Controllable proton and CO2 photoreduction over Cu2O with various morphologies[J]. International Journal of Hydrogen Energy，2013，38（29）：13017-13022
[5]An Xiaoqiang，Li Kimfung，Tang Junwang. Insider Cover: Cu2O/reduced graphene oxide composites for the photocatalytic conversion of CO[J]. Chem Sus Chem，2014，7（4）：1086-1093
[6]Wang Jichao，Zhang Lin，Fang Wenxue，et al. Enhanced Photoreduction CO2 Activity over Direct Z-Scheme α-Fe2O3/Cu2O Heterostructures under Visible Light Irradiation[J]. ACS applied materials & interfaces，2015，7（16）：8631-8639.
[7]Aguirre M E，Zhou Ruixin，Eugene A J，et al. Cu2O/TiO2 heterostructures for CO2 reduction through a direct Z-scheme: Protecting Cu2O from photocorrosion[J].Applied Catalysis B: Environmental，2017，217：485-493
[8]Tashkandi N Y，Mohamed R M. Sol-gel assembled MnCo2O4/rGO photocatalyst for enhanced production of aniline from photoreduction of nitrobenzene under visible light[J]. Ceramics International，2022，48（9）：13216-13228
[9]Alhaddad M，Mohamed R M，Mahmoud M H H. Promoting visible light generation of hydrogen using a sol-gel-prepared MnCo2O4@g-C3N4 p-n heterojunction photocatalyst[J].ACS Omega，2021，6（12）：8717-8725
[10]Mohammad H H，Payman B. Enhanced photo-catalytic degradation of naphthol blue black on nano-structure MnCo2O4: charge separation of the photo-generated electron- hole pair[J]. Journal of Materials Science: Materials in Electronics，2017，28（1）：289-294
[11]Wang Sibo，Hou Yidong，Wang Xinchen. Development of a stable MnCo2O4 cocatalyst for photocatalytic CO2 reduction with visible light[J]. ACS Applied Materials & Interfaces，2015，7（7）：4327-4335
[12]Zhu Hailing，Zhang Junying，Li Chunzhi，et al. Cu2O thin films deposited by reactive direct current magnetron sputtering[J]. Thin Solid Films，2009，517（19）：5700-5704
[13]Mousavi-Kamazani M，Zarghami Z，Rahmatolahzadeh R，et al. Solvent-free synthesis of Cu-Cu2O nanocomposites via green thermal decomposition route using novel precursor and investigation of its photocatalytic activity[J]. Advanced Powder Technology，2017，28（9）：2078-2086
[14]Wang Peng，Zhao Xinhong，Li Hairong，et al. Temperature sensitive optical properties of exciton and room-temperature visible light emission from disordered Cu2O nanowires[J]. RSC Advances，2014，4（71）：37542-37546
[15]Prajapati P K，Saini S，Nandal N，et al. Photochemical fixation of carbon dioxide for N-formylation of amine using Cu(II) embedded BiVO4 nanocomposite under visible light[J]. Journal of CO2 Utilization，2021，45：101402
[16]Xu Quanlong，Zhang Liuyang，Yu Jiaguo，et al. Direct Z-scheme photocatalysts: Principles, synthesis, and applications[J]. Materials. Today，2018，21（10）：1042-1063
[17]Hao Jingyuan，Qi Baojin，Wei Jinjia，et al. A Z-scheme Cu2O/WO3 heterojunction for production of renewable hydrocarbon fuel from carbon dioxide[J]. Fuel，2021，287（1）：119439
[18]Nan Fengtang，Yan Pingliang. Study on photoelectric catalysis reduction of CO2 on a WO3 Modified Cu2O composite electrode[J]. Applied Mechanics and Materials，2014，3637（694）：442-445

REDUCTION OF CO₂ BY Cu₂O/MnCo₂O₄ HETEROJUNCTION NANO-PHOTOCATALYST

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	. RESEARCH PROGRESS ON PREPARATION AND APPLICATION OF SiO2 COATED CORE-SHELL CATALYSTS [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 148-153.
[2]	. MODE-FREE ADAPTIVE CONTROL WITH REAL-TIME PARAMETER TUNING AND ITS APPLICATION IN GAS FRACTIONATION UN [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 97-106.
[3]	. THERMODYNAMIC ANALYSIS AND KINETIC SIMULATING ON SYNTHESIS OF ETHYLENE CARBONATE [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 82-88.
[4]	. INFLUENCE OF LUBRICATION IN COLD ROLLING PROCESS OF IF STEEL ON MINIMUM ROLLED THICKNESS OF STRIP AND POWER OF MAIN MOTOR [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 138-142.
[5]	. LOW-COST PREPARATION OF SUPER-HYDROPHILIC ALKALI-ACTIVATED SLAG/COPPER MESH COMPOSITE MEMBRANE AND ITS OIL-WATER SEPARATION PERFORMANCE [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 124-131.
[6]	. PREPARATION OF Cu-Mn-Si CATALYST AND ITS APPLICATION IN 2-BUTANOL DEHYDROGENATION [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 21-26.
[7]	. CAUSE ANALYSIS OF COKING IN THE REACTION SYSTEM OF CATALYTIC CRACKING UNIT AND CUONTERMEASURES [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 50-54.
[8]	. RENOVATION SCHEME OF DIRTY OIL RECOVERY TECHNOLOGY IN DELAYED COKING COMBINED UNIT [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 38-42.
[9]	. STUDY ON SEPARATED POLYCYCLIC AROMATIC HYDROCARBONS FOR THINNING AND VISCOSITY REDUCTION OF ULTRA-HEAVY OIL [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(3): 55-60.
[10]	. PROGRESS ON CATALYSTS FOR AMMONIA DECOMPOSITION [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(2): 10-22.
[11]	. RESEARCH PROGRESS OF HETEROGENEOUS CATALYSTS FOR SELECTIVE HYDROGENATION OF FATTY ACIDS TO ALCOHOLS [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(2): 43-51.
[12]	. RESEARCH PROGRESS ON SULFUR AND PHOSPHORUS POISONING IN DIESEL VEHICLE EXHAUST OXIDATION CATALYSTS [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(2): 23-35.
[13]	. PROGRESS IN METHANOL SYNTHESIS BY CO₂CATALYTIC HYDROGENATION [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(2): 75-83.
[14]	. RESEARCH PROGRESS OF CATALYSTS FOR DIRECT SYNTHESIS OF DIMETHYL CARBONATE FROM CO₂ AND METHANOL [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(2): 84-90.
[15]	. RESEARCH PROGRESS ON CATALYTIC COMBUSTION CATALYSTS FOR LOW-CONCENTRATION METHANE FROM THE PERSPECTIVE OF INDUSTRIAL APPLICATION [J]. PETROLEUM PROCESSING AND PETROCHEMICALS, 2024, 55(2): 121-127.