Inorganic Chemicals Industry >
Hollow Cu-doped TiO2 for enhancing photocatalytic CO2 reduction performance
Received date: 2023-05-30
Online published: 2023-08-25
Photocatalytic CO2 reduction， as a new green technology， is expected to simultaneously solve the energy crisis and environmental pollution problems，so it has attracted much attention in recent years.As one of the most widely studied photocatalysts， TiO2 still has the disadvantages of limited light absorption range and rapid recombination of photogenerated carriers.Cu can be doped into TiO2 with hollow structure by pyrolyzing Ti-based MOF（metal-organic framework） precursors.The structure and morphology of the as-prepared photocatalysts were analyzed by X-ray diffraction（XRD），scanning electron microscopy（SEM），and transmission electron microscopy（TEM）.In addition， the structure-activity relationship was investigated using UV-Visible diffuse reflection spectroscopy（UV-Vis DRS） and photoluminescence spectroscopy（PL）.The experimental results revealed that Cu doping could improve the light absorption capacity and promote the separation of photogenerated carries， thereby improving the performance in photocatalytic CO2 reduction.When Cu doping mass fraction was 0.50%，the catalyst exhibited the best performance，and the yield of CO and CH4 reached 6.3 μmol/g and 1.6 μmol/g， respectively.
Key words： photocatalysis; CO2 reduction; Cu-doped hollow TiO2
SONG Zhijia , WANG Suisui , KUANG Qin . Hollow Cu-doped TiO2 for enhancing photocatalytic CO2 reduction performance[J]. Inorganic Chemicals Industry, 2023 , 55(8) : 45 -50 . DOI: 10.19964/j.issn.1006-4990.2023-0295
| 1 | HUANG Hengming， SONG Hui， KOU Jiahui，et al.Atomic-level insights into surface engineering of semiconductors for photocatalytic CO2 reduction［J］.Journal of Energy Chemistry，2022，67：309-341. |
| 2 | 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. | |
| 3 | WANG Haining， ZOU Yanhong， SUN Hongxu，et al.Recent progress and perspectives in heterogeneous photocatalytic CO2 reduction through a solid-gas mode［J］.Coordination Chemistry Reviews，2021，438：213906. |
| 4 | WANG Shuobo， HAN Xu， ZHANG Yihe，et al.Inside-and-out semiconductor engineering for CO2 photoreduction：From recent advances to new trends［J］.Small Structures，2021，2（1）：2000061. |
| 5 | 李书文，周严，汪铁林.BiVO4/rGO复合物的制备及其光催化还原CO2研究［J］.无机盐工业，2019，51（11）：82-87. |
| LI Shuwen， ZHOU Yan， WANG Tielin.Study on preparation and photocatalysis-reduction for CO2 of BiVO4/rGO composite［J］.Inorganic Chemicals Industry，2019，51（11）：82-87. | |
| 6 | LI Kai， TENG Chao， WANG Shuang，et al.Recent advances in TiO2-based heterojunctions for photocatalytic CO2 reduction with water oxidation：A review［J］.Frontiers in Chemistry，2021，9：637501. |
| 7 | WANG Zhiqiang， ZHU Juncheng， ZU Xiaolong，et al.Selective CO2 photoreduction to CH4 via Pdδ+-assisted hydrodeoxygenation over CeO2 nanosheets［J］.Angewandte Chemie，2022，61（30）：e202203249. |
| 8 | LIANG Yujie， WU Xi， LIU Xueyan，et al.Recovering solar fuels from photocatalytic CO2 reduction over W6+-incorporated crystalline g-C3N4 nanorods by synergetic modulation of active cente-rs［J］.Applied Catalysis B：Environmental，2022，304：120978. |
| 9 | XIA Yu， MAN Jianwei， WU Xiaodong，et al.Oxygen-vacancy-assisted construction of Ce-TiO2 aerogel for efficiently boosting photocatalytic CO2 reduction without any sacrifice agent［J］.Ceramics International，2023，49（4）：6100-6112. |
| 10 | ZHANG Yumin， ZHAO Jianhong， WANG Hui，et al.Single-atom Cu anchored catalysts for photocatalytic renewable H2 production with a quantum efficiency of 56%［J］.Nature Communications，2022，13：58. |
| 11 | ZHAO Yunxuan， ZHAO Yufei， SHI Run，et al.Tuning oxygen vacancies in ultrathin TiO2 nanosheets to boost photocatalytic nitrogen fixation up to 700 nm［J］.Advanced Materials，2019，31（16）：1806482. |
| 12 | JIANG Deli， ZHOU Yimeng， ZHANG Qianxiao，et al.Synergistic integration of AuCu co-catalyst with oxygen vacancies on TiO2 for efficient photocatalytic conversion of CO2 to CH4 ［J］.ACS Applied Materials & Interfaces，2021，13（39）：46772-46782. |
| 13 | WU Siyao， JI Yangqi， WANG Lei，et al.Selective CO2-to-CH4 photoconversion in aqueous solutions catalyzed by atomically dispersed copper sites anchored on ultrathin graphdiyne oxide nano- sheets［J］.Solar RRL，2021，5（7）：2100200. |
| 14 | XU Miao， WU Heng， TANG Yawen，et al.One-step in situ synthesis of porous Fe3+-doped TiO2 octahedra toward visible-light photocatalytic conversion of CO2 into solar fuel［J］.Microporous and Mesoporous Materials，2020，309：110539. |
| 15 | MORADI M， KHORASHEH F， LARIMI A.Pt nanoparticles decorated Bi-doped TiO2 as an efficient photocatalyst for CO2 photo-reduction into CH4 ［J］.Solar Energy，2020，211：100-110. |
| 16 | XIONG Zhuo， LEI Ze， MA Siming，et al.Photocatalytic CO2 reduction over V and W codoped TiO2 catalyst in an internal-illuminated honeycomb photoreactor under simulated sunlight irradiation［J］.Applied Catalysis B：Environmental，2017，219：412-424. |
| 17 | WANG Tao， MENG Xianguang， LIU Guigao，et al. In situ synthesis of ordered mesoporous Co-doped TiO2 and its enhanced photocatalytic activity and selectivity for the reduction of CO2 ［J］.Journal of Materials Chemistry A，2015，3（18）：9491-9501. |
| 18 | JI Jixiang， LI Ruru， ZHANG Hao，et al.Highly selective photocatalytic reduction of CO2 to ethane over Au-O-Ce sites at micro-interface［J］.Applied Catalysis B：Environmental，2023，321：122020. |
| 19 | YU Yangyang， DONG Xingan， CHEN Peng，et al.Synergistic effect of Cu single atoms and Au-Cu alloy nanoparticles on TiO2 for efficient CO2 photoreduction［J］.ACS Nano，2021，15（9）：14453-14464. |
| 20 | PI Jiacheng， JIA Xiaofang， LONG Zhangwen，et al.Surface and defect engineering coupling of halide double perovskite Cs2NaBiCl6 for efficient CO2 photoreduction［J］.Advanced Energy Materials，2022，12（43）：2270179. |
| 21 | YIN Haibo， DONG Feng， WANG Dingsheng，et al.Coupling Cu single atoms and phase junction for photocatalytic CO2 reduction with 100% CO selectivity［J］.ACS Catalysis，2022，12（22）：14096-14105. |
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