Inorganic Chemicals Industry >
Study on photocatalytic CO2 reduction performance of Cu-doped TiO2/PCN heterojunction
Received date: 2023-06-08
Online published: 2023-08-25
TiO2/PCN heterojunctions（CuTiCN） with different Cu doping contents were prepared by calcination methods using CuCl2，NH2-MIL-125（Ti） and urea as precursors. The 3CuTiCN photocatalyst exhibited the best photocatalytic CO2 reduction performance with CO evolution rate of 735 µmol/（g·h），which was 9 and 3 times of the PCN and TiO2/PCN heterojunction，respectively.The composition，structure and photoelectrochemical properties of the photocatalysts were characterized by X-ray diffraction（XRD），Fourier transform infrared spectroscopy（FT-IR），scanning electron microscopy（SEM），X-ray photoelectron spectroscopy（XPS），nitrogen physical adsorption，UV-Vis-DRS spectra，PL spectra，and etc.It was found that Cu doping and construction of heterojunction enhanced the visible light absorption，increased the specific surface area and promoted the separation and transfer efficiency of photogenerated carriers.Furthermore，the band structure of the heterojunction was obtained based on the band gap data and Mott-Schottky plots，and the photocatalytic mechanism of CO2 reduction over Cu-doped TiO2/PCN heterojunction was proposed.
Key words： photocatalysis; CO2 reduction; polymeric carbon nitride; Cu doping; heterojunction
ZHAO Yan , HAO Xuewei , SHI Hainan , LI Jiahui , LI Keyan , GUO Xinwen . Study on photocatalytic CO2 reduction performance of Cu-doped TiO2/PCN heterojunction[J]. Inorganic Chemicals Industry, 2023 , 55(8) : 21 -27 . DOI: 10.19964/j.issn.1006-4990.2023-0310
| 1 | 邵斌，孙哲毅，章云，等.二氧化碳转化为合成气及高附加值产品的研究进展［J］.化工进展，2022，41（3）：1136-1151. |
| SHAO Bin， SUN Zheyi， ZHANG Yun，et al.Recent progresses in CO2 to syngas and high value-added products［J］.Chemical Industry and Engineering Progress，2022，41（3）：1136-1151. | |
| 2 | DAS S， PéREZ-RAMíREZ J， GONG Jinlong，et al.Core-shell st-ructured catalysts for thermocatalytic，photocatalytic，and electrocatalytic conversion of CO2 ［J］.Chemical Society Reviews，2020，49（10）：2937-3004. |
| 3 | GAO Dunfeng， LI Wanjun， WANG Hanyu，et al.Heterogeneous catalysis for CO2 conversion into chemicals and fuels［J］.Transactions of Tianjin University，2022，28（4）：245-264. |
| 4 | 唐兰勤，贾茵，朱志尚，等.光催化二氧化碳还原研究进展［J］.物理学进展，2021，41（6）：254-263. |
| TANG Lanqin， JIA Yin， ZHU Zhishang，et al.Development of functional materials for photocatalytic reduction of CO2 ［J］.Progress in Physics，2021，41（6）：254-263. | |
| 5 | LIN Huiwen， LUO Shunqin， ZHANG Huabin，et al.Toward solar-driven carbon recycling［J］.Joule，2022，6（2）：294-314. |
| 6 | WANG Xinchen， 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. |
| 7 | 班昌胜，李军，金央，等.超分子前体制备g-C3N4/g-C3N4同质结及光催化性能研究［J］.无机盐工业，2022，54（3）：125-131. |
| BAN Changsheng， LI Jun， JIN Yang，et al.Study on preparation of g-C3N4/g-C3N4 homojunction by supramolecular precursor and its photocatalytic property［J］.Inorganic Chemicals Industry，2022，54（3）：125-131. | |
| 8 | LUO Lei， ZHANG Anfeng， JANIK M J，et al.Facile fabrication of metal-free urchin-like g-C3N4 with superior photocatalytic activi- ty［J］.RSC Advances，2016，6（97）：94496-94501. |
| 9 | ONG W J， TAN L L， NG Y H，et al.Graphitic carbon nitride（g-C3N4）-based photocatalysts for artificial photosynthesis and environmental remediation：Are we a step closer to achieving sustainability？［J］.Chemical Reviews，2016，116（12）：7159-7329. |
| 10 | 李佳慧，李克艳，宋春山，等.聚合氮化碳的制备、改性及光催化还原二氧化碳性能研究［J］.无机盐工业，2021，53（12）：21-28. |
| LI Jiahui， LI Keyan， SONG Chunshan，et al.Study on preparation，modification and carbon dioxide photocatalytic reduction performance of polymeric carbon nitride［J］.Inorganic Chemicals Industry，2021，53（12）：21-28. | |
| 11 | YANG Xiaohang， GUO Zilong， ZHANG Xiaoyu，et al.The effect of indium doping on the hydrogen evolution performance of g-C3N4 based photocatalysts［J］.New Journal of Chemistry，2021，45（2）：544-550. |
| 12 | YANG Xi， TIAN Zhen， CHEN Yufang，et al. In situ synthesis of 2D ultrathin cobalt doped g-C3N4 nanosheets enhances photocatalytic performance by accelerating charge transfer［J］.Journal of Alloys and Compounds，2021，859：157754. |
| 13 | JIANG Longbo， YANG Jinjuan， YUAN Xingzhong，et al.Defect engineering in polymeric carbon nitride photocatalyst：Synthesis，properties and characterizations［J］.Advances in Colloid and Interface Science，2021，296：102523. |
| 14 | LIU Tongyao， HAO Lin， BAI Liqi，et al.Z-scheme junction Bi2O2（NO3）（OH）/g-C3N4 for promoting CO2 photoreduction［J］.Chemical Engineering Journal，2022，429：132268. |
| 15 | SHI Hainan， LONG Saran， HU Shen，et al.Interfacial charge transfer in 0D/2D defect-rich heterostructures for efficient solar-driven CO2 reduction［J］.Applied Catalysis B：Environmental，2019，245：760-769. |
| 16 | ZHAO Shuangchao， LI Keyan， DU Jun，et al.Facile construction of a hollow In2S3/polymeric carbon nitride heterojunction for efficient visible-light-driven CO2 reduction［J］.ACS Sustainable Chemistry & Engineering，2021，9（17）：5942-5951. |
| 17 | JIANG Zhifeng， WAN Weiming， LI Huaming，et al.A hierarchical Z-scheme α-Fe2O3/g-C3N4 hybrid for enhanced photocatalytic CO2 reduction［J］.Advanced Materials，2018，30（10）：1706108. |
| 18 | SHI Hainan， DU Jun， HOU Jungang，et al.Solar-driven CO2 conversion over Co2+ doped 0D/2D TiO2/g-C3N4 heterostructure：Insights into the role of Co2+ and cocatalyst［J］.Journal of CO2 Utilization，2020，38：16-23. |
| 19 | KHAN M A， MUTAHIR S， WANG Fengyun，et al.Facile one-step economical methodology of metal free g-C3N4 synthesis with remarkable photocatalytic performance under visible light to degrade trans-resveratrol［J］.Journal of Hazardous Materials，2019，367：293-303. |
| 20 | ZHONG Jiapeng， HUANG Jiaxing， LIU Yang，et al.Construction of double-functionalized g-C3N4 heterojunction structure via optimized charge transfer for the synergistically enhanced photocatalytic degradation of sulfonamides and H2O2 production［J］.Journal of Hazardous Materials，2022，422：126868. |
| 21 | WANG Jian， YANG Zhuang， YAO Wenqing，et al.Defects modified in the exfoliation of g-C3N4 nanosheets via a self-assembly process for improved hydrogen evolution performance［J］.Applied Catalysis B：Environmental，2018，238：629-637. |
| 22 | LEI Juying， CHEN Bin， ZHOU Liang，et al.Efficient degradation of antibiotics in different water matrices through the photocatalysis of inverse opal K-g-C3N4：Insights into mechanism and assessment of antibacterial activity［J］.Chemical Engineering Journal，2020，400：125902. |
| 23 | DU Jun， SHI Hainan， WU Jiaming，et al.Interface and defect engineering of a hollow TiO2@ZnIn2S4 heterojunction for highly enhanced CO2 photoreduction activity［J］.ACS Sustainable Chemistry & Engineering，2023，11（6）：2531-2540. |
| 24 | LI Xiaochun， WANG Jiawen， XIA Jiawei，et al.One-pot synthesis of CoS2 merged in polymeric carbon nitride films for photoelectrochemical water splitting［J］.ChemSusChem，2022，15（8）：e202200330. |
/
| 〈 |
|
〉 |