Chinese Journal of Catalysis ›› 2026, Vol. 80: 20-37.DOI: 10.1016/S1872-2067(25)64869-8
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Jinpeng Zhanga,1, Teng Liangb,1, Jaenudin Ridwana, Tian Chena, Elhussein M. Hashema, Meijun Guoa, Amin Talebian-Kiakalaieha, Le Yua, Ping Sheb,*(
), Jingrun Rana,*(
)
Received:2025-07-30
Accepted:2025-09-10
Online:2026-01-18
Published:2026-01-05
Contact:
Ping She, Jingrun Ran
About author:Ping She (College of Chemistry, Jilin University) received her bachelor’s degree from Jilin University in 2014. In 2018, she obtained her Ph.D. degree in engineering from Jilin University. She then completed post-doctoral work at Jilin University (Post Doctoral Innovative Talent Support Program of China from 2018 to 2021). Her research focuses on inorganic porous nanomaterial-based catalysis evolution.Supported by:Jinpeng Zhang, Teng Liang, Jaenudin Ridwan, Tian Chen, Elhussein M. Hashem, Meijun Guo, Amin Talebian-Kiakalaieh, Le Yu, Ping She, Jingrun Ran. Key components for realistic application of plastic photoreforming coupled with H2 evolution[J]. Chinese Journal of Catalysis, 2026, 80: 20-37.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(25)64869-8
Fig. 3. (a) Mechanical pretreatment of plastics to reduce plastic size. Reprinted with permission from Ref. [21]. Copyright 2024, Wiley-VCH. (b) Plasma pretreatment cleaves C-H bonds and forms -OH, O-C=O, and C=O groups in PE. Reprinted with permission from Ref. [29]. Copyright 2023, Wiley-VCH. (c) PE is hydrolyzed to dicarboxylic acid after pretreatment with HNO3. Reprinted with permission from Ref. [30]. Copyright 2022, American Chemical Society. (d) Mechanism of EG and TPA from PET pretreated with KOH. Reprinted with permission from Ref. [31]. Copyright 2023, American Chemical Society. (e) The monomers are obtained at the optimum pretreatment temperatures of LCC and Dura in 100 mmol L?1 carbonate buffer solution with pH = 8.5, respectively, and the influence of different pretreatment conditions (including plastic size, pretreatment method and time) on the depolymerization effect of plastics. Reprinted with permission from Ref. [32]. Copyright 2023, American Chemical Society.
| Photocatalysts | Light source | Plastic | Rate max. (H2) | Chemicals | Stability (h) | Ref. |
|---|---|---|---|---|---|---|
| CdS/CdOx | solar simulator | PET PLA PUR | 12.4 ± 2.0 mmol g-1 h-1 64.3 ± 14.7 mmol g-1 h-1 3.22 ± 0.13 mmol g-1 h-1 | formate, glycolate, ethanol, acetate, lactate Pyruvate-based formate, acetate, pyruvate, lactate | 144 | [ |
| BiVO4/MoOx | 300 W Xe lamp | PET | 1.96 mmol g-1 h-1 | formate, acetate | 25 | [ |
| CPDs-C3N4 | 300 W Xe lamp | PET PLA | 1034 ± 134 μmol g−1 h−1 1326 ± 181 μmol g−1 h−1 | glycolic acid, glycolaldehyde, ethanol — | 216 | [ |
| NiCo2S3-ZnxCd1-xS | 300 W Xe lamp | PET PLA | 57.0 mmol g−1 h−1 106.0 mmol g−1 h−1 | formate, glycolate, acetate pyruvate, acetate | 45 | [ |
| FeSA-hCN | 300 W Xe lamp | PE | 42 μmol h-1 | carboxylic acid, ether, alkane, furanone | 144 | [ |
| MoS2/CdS | solar simulator | PET PLA PE | 3.90 ± 0.07 mmol g-1 h-1 6.68 ± 0.10 mmol g-1 h-1 1.13 ± 0.06 mmol g-1 h-1 | formate, acetate, glycolate formate formic acid | 200 | [ |
| O-CuIn5S8 | 300 W Xe lamp | PET | 2.57 ± 0.02 mmol g−1 h−1 | formate, acetate, glycolate | 25 | [ |
| PCN/WO3 | 300 W Xe lamp | PLA | 402.09 μmol g−1 h−1 | acetate, formate | 24 | [ |
| Cu/TiO2 | Solar simulator | PET | 193.6 μmol g−1 h−1 | formate, acetate, glycollate, lactate | 25 | [ |
| Pd-CdS | 300 W Xe lamp | PLA | 49.8 μmol g−1 h−1 | pyruvic acid-based | >100 | [ |
| d-NiPS3/CdS | 300 W Xe lamp | PET PLA | 31.38 mmol g-1 h-1 39.76 mmol g-1 h-1 | formate, acetate, glycolate acetate, pyruvate-based | >100 | [ |
| T-ZnSe | 300 W Xe lamp | PET PLA | 42 μmol h−1 54 μmol h−1 | formate, acetate, lactate, ethanol acetate, propionate-based | 12 | [ |
| CNx|Ni2P | Solar simulator | PET PLA | 31.2 μmol g-1 h-1 32.9 μmol g-1 h-1 | formate, glyoxal, glycolate, acetate formate, acetate | 120 | [ |
| Ni2P/ZnIn2S4 | 4 × 25W, LED | PLA PET PTT PBT | 781.3 μmol g−1 h−1 686.1 μmol g−1 h−1 519.4 μmol g−1 h−1 330.0 μmol g−1 h−1 | pyruvic acid glycolate, formate, acetate malonate, 3-hydroxypropionate succinate, 4-hydroxybutyrate | 20 | [ |
| Pt/g-C3N4 | Solar simulator | PET | 2000 μmol g−1 h−1 | formic acid, acetic acid | 20 | [ |
| Cu-SA/TiO2 NPs | 122 mW cm-2 | PET | 3.45 mmol h-1 m-2 | — | 336 | [ |
| Pt1/TiO2 PtNPs/TiO2 | 300 W Xe lamp 300 W Xe lamp | PET PET | 51.8 μmol g−1 h−1 219.1 μmol g−1 h−1 | glyoxal, glyoxylate, lactate, acetate acetate | 120 120 | [43] [43] |
| CN-CNTs-NiMo | 500 W Xe lamp | PET | 90 μmol g−1 h−1 | glyoxal, glycolate | 20 | [ |
| ZnZn-Salen-Ni COF | 300 W Xe lamp | PET | 421.46 μmol g−1 h−1 | formic acid | 48 | [ |
| Pt SA/BCN100 | 300 W Xe lamp | PLA | 993 μmol g−1 h−1 | acetic acid | 16 | [ |
| Ni3S4/ZnCdS | 300 W Xe lamp | PLA | 27.9 mmol g-1 h-1 | pyruvate, acetate | 15 | [ |
| PET | 17.4 mmol g-1 h-1 | acetate, glycolate, formate | ||||
| NiSA/CeO2 | 300 W Xe lamp | PE | 0.23 mmol h-1 | propionic acid, adipic acid | 12 | [ |
Table 1 Photocatalysts for plastic photoreforming.
| Photocatalysts | Light source | Plastic | Rate max. (H2) | Chemicals | Stability (h) | Ref. |
|---|---|---|---|---|---|---|
| CdS/CdOx | solar simulator | PET PLA PUR | 12.4 ± 2.0 mmol g-1 h-1 64.3 ± 14.7 mmol g-1 h-1 3.22 ± 0.13 mmol g-1 h-1 | formate, glycolate, ethanol, acetate, lactate Pyruvate-based formate, acetate, pyruvate, lactate | 144 | [ |
| BiVO4/MoOx | 300 W Xe lamp | PET | 1.96 mmol g-1 h-1 | formate, acetate | 25 | [ |
| CPDs-C3N4 | 300 W Xe lamp | PET PLA | 1034 ± 134 μmol g−1 h−1 1326 ± 181 μmol g−1 h−1 | glycolic acid, glycolaldehyde, ethanol — | 216 | [ |
| NiCo2S3-ZnxCd1-xS | 300 W Xe lamp | PET PLA | 57.0 mmol g−1 h−1 106.0 mmol g−1 h−1 | formate, glycolate, acetate pyruvate, acetate | 45 | [ |
| FeSA-hCN | 300 W Xe lamp | PE | 42 μmol h-1 | carboxylic acid, ether, alkane, furanone | 144 | [ |
| MoS2/CdS | solar simulator | PET PLA PE | 3.90 ± 0.07 mmol g-1 h-1 6.68 ± 0.10 mmol g-1 h-1 1.13 ± 0.06 mmol g-1 h-1 | formate, acetate, glycolate formate formic acid | 200 | [ |
| O-CuIn5S8 | 300 W Xe lamp | PET | 2.57 ± 0.02 mmol g−1 h−1 | formate, acetate, glycolate | 25 | [ |
| PCN/WO3 | 300 W Xe lamp | PLA | 402.09 μmol g−1 h−1 | acetate, formate | 24 | [ |
| Cu/TiO2 | Solar simulator | PET | 193.6 μmol g−1 h−1 | formate, acetate, glycollate, lactate | 25 | [ |
| Pd-CdS | 300 W Xe lamp | PLA | 49.8 μmol g−1 h−1 | pyruvic acid-based | >100 | [ |
| d-NiPS3/CdS | 300 W Xe lamp | PET PLA | 31.38 mmol g-1 h-1 39.76 mmol g-1 h-1 | formate, acetate, glycolate acetate, pyruvate-based | >100 | [ |
| T-ZnSe | 300 W Xe lamp | PET PLA | 42 μmol h−1 54 μmol h−1 | formate, acetate, lactate, ethanol acetate, propionate-based | 12 | [ |
| CNx|Ni2P | Solar simulator | PET PLA | 31.2 μmol g-1 h-1 32.9 μmol g-1 h-1 | formate, glyoxal, glycolate, acetate formate, acetate | 120 | [ |
| Ni2P/ZnIn2S4 | 4 × 25W, LED | PLA PET PTT PBT | 781.3 μmol g−1 h−1 686.1 μmol g−1 h−1 519.4 μmol g−1 h−1 330.0 μmol g−1 h−1 | pyruvic acid glycolate, formate, acetate malonate, 3-hydroxypropionate succinate, 4-hydroxybutyrate | 20 | [ |
| Pt/g-C3N4 | Solar simulator | PET | 2000 μmol g−1 h−1 | formic acid, acetic acid | 20 | [ |
| Cu-SA/TiO2 NPs | 122 mW cm-2 | PET | 3.45 mmol h-1 m-2 | — | 336 | [ |
| Pt1/TiO2 PtNPs/TiO2 | 300 W Xe lamp 300 W Xe lamp | PET PET | 51.8 μmol g−1 h−1 219.1 μmol g−1 h−1 | glyoxal, glyoxylate, lactate, acetate acetate | 120 120 | [43] [43] |
| CN-CNTs-NiMo | 500 W Xe lamp | PET | 90 μmol g−1 h−1 | glyoxal, glycolate | 20 | [ |
| ZnZn-Salen-Ni COF | 300 W Xe lamp | PET | 421.46 μmol g−1 h−1 | formic acid | 48 | [ |
| Pt SA/BCN100 | 300 W Xe lamp | PLA | 993 μmol g−1 h−1 | acetic acid | 16 | [ |
| Ni3S4/ZnCdS | 300 W Xe lamp | PLA | 27.9 mmol g-1 h-1 | pyruvate, acetate | 15 | [ |
| PET | 17.4 mmol g-1 h-1 | acetate, glycolate, formate | ||||
| NiSA/CeO2 | 300 W Xe lamp | PE | 0.23 mmol h-1 | propionic acid, adipic acid | 12 | [ |
Fig. 4. (a) Chronological development of photocatalysts for plastic reforming. Reprinted with permission from Ref. [19,33]. Copyright 2018 and 2023, Royal Society of Chemistry. Reprinted with permission from Ref. [30,32,36,37,39,41,46]. Copyright 2019, 2022, 2023, 2024 and 2025, American Chemical Society. Reprinted with permission from Ref. [35]. Copyright 2024, Elsevier. Reprinted with permission from Refs. [47,49]. Copyright 2021 and 2025, Wiley. (b) Trends in publications in recent years related to the keywords “photocatalysis” include “plastic” (The data based on Web of Science). (c) Schematic image of photocatalyst exploration for plastic photo-reforming.
Fig. 5. (a) Schematic illustration of BiVO4/MoOx photoreforming pretreated PET plastic into H2 and chemicals. (b) Effect of MoOx loading on H2O-TPD results. Reprinted with permission from Ref. [22]. Copyright 2024, Elsevier. (c) Theoretical diagram of O doping site in CuIn5S8. (d) Band structure diagram of CuIn5S8 before and after doping with O. Reprinted with permission from Ref. [33]. Copyright 2023, Royal Society of Chemistry. (e) Theoretical model of heterostructure photocatalyst MoS2/CdxZn1-xS containing CdxZn1-xS solid solution. (f) Effect of Cd/Zn content ratio in CdxZn1-xS on band structure. Reprinted with permission from Ref. [49]. Copyright 2021, Wiley-VCH. (g) Cell structure of anatase TiO2 and Au/TiO2 (after doping Au nanoparticles). (h) Absorption spectra of TiO2 and Au/TiO2. Reprinted with permission from Ref. [50]. Copyright 2023, Elsevier.
Fig. 6. (a) Synthesis illustration of PCN/WO3 heterostructure photocatalysts. (b) Z-scheme charge transfer mechanism in PCN/WO3 heterostructure. Reprinted with permission from Ref. [34]. Copyright 2024, Springer Nature. (c) Preparation procedure of Cu1-O4 SAC. (d) Photocatalysis process over SACs. Reprinted with permission from Ref. [35]. Copyright 2024, Elsevier. (e) H2 yield of CdS loaded with different cocatalysts after 8 h photo-reforming. (f) k2-weighted Pd K-edge Fourier-transformed EXAFS spectra of different Pd species in R space. Reprinted with permission from Ref. [36]. Copyright 2024, American Chemical Society. (g) HAADF-STEM image of T-ZnSe. (h) XRD patterns of T-ZnSe and S-ZnSe. H2 (i) and organic acid (j) yields from PLA and PET photo-reforming by T-ZnSe and S-ZnSe. Reprinted with permission from Ref. [38]. Copyright 2024, Royal Society of Chemistry.
Fig. 7. (a) Schematic image of floatable photocatalytic nanocomposites. (b) H2 evolution through PET reforming. Reprinted with permission from Ref. [42]. Copyright 2023, Springer Nature. (c) Schematic of the conversion to single atom and nanoparticles on CeO2 (100) and CeO2 (111), respectively. Reprinted with permission from Ref. [77]. Copyright 2022, Wiley. (d) Preparation process of PDMS microreactor. Reprinted with permission from Ref. Copyright 2023, Elsevier. Continuous flow (e) and batch preparation routes (f). Reprinted with permission from Refs. [78,79]. Copyright 2023, Elsevier.
Fig. 8. (a) Schematic diagram of a machine learning process. Reprinted with permission from Ref. [90]. Copyright 2023, Springer Nature. (b) Theoretical calculation guided by AI. Reprinted with permission from Ref. [91]. Copyright 2025, Wiley. (c) A machine learning and AI-guided photocatalysis experimental platform. Reprinted with permission from Ref. [93]. Copyright 2024, Science.
Fig. 10. (a) Concentrated solar power technology for promoting photocatalytic reactions. Reprinted with permission from Ref. [101]. Copyright 2024, MDPI. Image of suspended reactor (b) (Reprinted with permission from Ref. [39]. Copyright 2019, American Chemical Society) and immobilized reactor (c) (Reprinted with permission from Ref. [32]. Copyright 2023, American Chemical Society).
Fig. 11. (a) Pilot plant model for photoreforming of mixed waste (plastic, food waste, and biomass). (b) A sensitivity analysis was conducted for each parameter with respect to H2 production cost, carbon footprint, and EROI (blue indicating optimistic scenarios; red indicating pessimistic scenarios). The hollow circles in the ‘catalyst reuse’ section illustrate the impact of utilizing the more expensive TiO2|Pt photocatalyst in H2O. Photoreforming in 1 mol L?1 NaOH is examined only in the ‘NaOH reuse’ case. Reprinted with permission from Ref. Copyright 2020, Springer Nature [4].
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