References
  -  C. Chen, H. Zeng, M. Yi, G. Xiao, S. Xu, S. Shen, B. Feng, In-situ
	   growth of Ag3PO4 on calcined Zn-Al layered double hydroxides
    for enhanced photocatalytic degradation of tetracycline under
    simulated solar light irradiation and toxicity assessment,
  Appl. Catal., B, 252 (2019) 47–54. 
-  X.N. Hu, Y. Ye, W.B. Dong, Y.C. Huang, M.S. Zhu, Quantitative
    evaluation of structure-activity relationships in heterogeneous
    photocatalytic oxidation towards organic contaminants, Appl.
    Catal., B, 309 (2022) 121238, doi: 10.1016/j.apcatb.2022.121238. 
-  K. Domagala, C. Jacquin, M. Borlaf, B. Sinnet, T. Julian, D. Kata,
    T. Graule, Efficiency and stability evaluation of Cu2O/MWCNTs
    filters for virus removal from water, Water Res., 179 (2020)
  115879, doi: 10.1016/j.watres.2020.115879. 
-  D. Pathania, A. Sharma, S. Kumar, A.K. Srivastava, A. Kumar,
    L. Singh, Bio-synthesized Cu-ZnO hetro-nanostructure
    for catalytic degradation of organophosphate chlorpyrifos
    under solar illumination, Chemosphere, 277 (2021) 130315,
    doi: 10.1016/j.chemosphere.2021.130315. 
-  A. Kumar, G. Sharma, M. Thakur, D. Pathania, Sol-gel
    synthesis of polyacrylamide stannic arsenate nanocomposite
    ion exchanger: binary separations and enhanced photocatalytic
    activity, SN Appl. Sci., 1 (2019) 862, doi: 10.1007/s42452-019-0905-6. 
-  A. Kumar, D. Pathania, N. Gupta, P. Raj, A. Sharma, Photodegradation
    of noxious pollutants from water system using
    Cornulaca monacantha stem supported ZnFe2O4 magnetic bionanocomposite,
    Sustainable Chem. Pharm., 18 (2020) 100290,
  doi: 10.1016/j.scp.2020.100290. 
-  M. Liu, T. Peng, H. Li, L. Zhao, Y. Sang, Q. Feng, L. Xu, Y. Jiang,
    H. Liu, J. Zhang, Photoresponsive nanostructure assisted
    green synthesis of organics and polymers, Appl. Catal., B,
    249 (2019) 172–210. 
-  N.A. Khan, S.H. Jhung, Adsorptive removal and separation
    of chemicals with metal–organic frameworks: contribution of
    pi-complexation, J. Hazard. Mater., 325 (2017) 198–213. 
-  K. Hemine, N. Lukasik, M. Gazda, I. Nowak, β-cyclodextrincontaining
    polymer based on renewable cellulose resources for
    effective removal of ionic and non-ionic toxic organic pollutants
    from water, J. Hazard. Mater., 418 (2021) 126286, doi: 10.1016/j.jhazmat.2021.126286. 
-  S. Singh, R. Punia, K.K. Pant, P. Biswas, Effect of work-function
    and morphology of heterostructure components on CO2
    reduction photo-catalytic activity of MoS2-Cu2O heterostructure,
  Chem. Eng. J., 433 (2022) 132709, doi: 10.1016/j.cej.2021.132709. 
-  J. Li, A.N. Pham, R. Dai, Z. Wang, T.D. Waite, Recent advances in
    Cu-Fenton systems for the treatment of industrial wastewaters:
    role of Cu complexes and Cu composites, J. Hazard. Mater.,
  392 (2020) 122261, doi: 10.1016/j.jhazmat.2020.122261. 
-  L.K. Cui, L.Q. Hu, Q.Q. Shen, X.G. Liu, H.S. Jia, J.B. Xue,
    Three-dimensional porous Cu2O with dendrite for efficient
    photocatalytic reduction of CO2 under visible light, Appl. Surf.
  Sci., 581 (2022) 152343, doi: 10.1016/j.apsusc.2021.152343. 
-  X.S. Zhou, B. Jin, J. Luo, X.X. Gu, S.Q. Zhang, Photoreduction
    preparation of Cu2O@polydopamine nanospheres with enhanced
    photocatalytic activity under visible light irradiation,
  J. Solid State Chem., 254 (2017) 56–61. 
-  H.M. Zhu, Y. Li, X.C. Jiang, Room-temperature synthesis
    of cuprous oxide and its heterogeneous nanostructures for
    photocatalytic applications, J. Alloys Compd., 772 (2019)
    447–459. 
-  J.F. Zhang, P. Wang, C.P. Yu, X. Shu, L. Jiang, Enhanced
    visible-light photoelectrochemical behavior of heterojunction
    composite with Cu2O nanoparticles-decorated TiO2 nanotube
  arrays, New J. Chem., 38 (2014) 4975–4984. 
-  J. Shravanti, J.I. Samuel, S.V. Manorama, Convenient
    architectures of Cu2O/SnO2 type II p-n heterojunctions and their
    application in visible light catalytic degradation of Rhodamine
  B, RSC. Adv., 6 (2016) 43672–43684. 
-  S.H. Liu, Y.S. Wei, J.S. Lu, Visible-light-driven photodegradation
    of sulfamethoxazole and methylene blue by Cu2O/rGO
  photocatalysts, Chemosphere, 154 (2016) 118–123. 
-  S.W. Lee, J.W. Hong, H. Lee, D.H. Wi, S.M. Kim, S.W. Han,
    J.Y. Park, The surface plasmon-induced hot carrier effect on
    the catalytic activity of CO oxidation on a Cu2O/hexoctahedral
  Au inverse catalyst, Nanoscale, 10 (2018) 10835–10843. 
-  Q. Li, Y.W. Li, P.G. Wu, R.C. Xie, Palladium oxide nanoparticles
    on nitrogen-doped titanium oxide: accelerated photocatalytic
    disinfection and post-illumination catalytic “memory”,
    Adv. Mater., 20 (2008) 3717–3723. 
-  Q. Li, Y.W. Li, Z.Q. Liu, R.C. Xie, K.S. Jian, Memory antibacterial
    effect from photoelectron transfer between nanoparticles and
    visible light photocatalyst, J. Mater. Chem., 20 (2010) 1068–1072. 
-  L.N. Li, Z.S. Liu, L.T. Guo, H.L. Fan, X.Y. Tao, NaBiO3/BiO2–x
    composite photocatalysts with post-illumination “memory”
  activity, Mater. Lett., 234 (2019) 30–34. 
-  M. Wei, C.S. Chen, X. Chen, X.Y. Liu, Z. Yang, F. Ding, Z.S. Chao,
    T.G. Liu, Low-temperature construction of MoS2 quantum
    dots/ZnO spheres and their photocatalytic activity under
  natural sunlight, J. Colloid Interface Sci., 530 (2018) 714–724. 
-  T. Cai, Y.T. Liu, L.L. Wang, W.Y. Dong, G.M. Zeng, Recent
    advances in round-the-clock photocatalytic system:
    mechanisms, characterization techniques and applications,
    J. Photochem. Photobiol., C, 39 (2019) 58–75. 
-  W. Yang, Y. Chen, S. Gao, L.C. Sang, R.G. Tao, C.X. Sun,
    J.K. Shang, Q. Li, Post-illumination activity of Bi2WO6 in the
    dark from the photocatalytic “memory” effect, J. Adv. Ceram.,
  10 (2021) 355–367. 
-  M.Y. Kuo, C.F. Hsiao, Y.H. Chiu, T.H. Lai, Y.J. Hsu, Au@Cu2O core@shell nanocrystals as dual-functional catalysts
    for sustainable environmental applications, Appl. Catal., B,
  242 (2019) 499–506. 
-  S. Begum, S.R. Mishra, M. Ahmaruzzaman, Facile synthesis
    of NiO-SnO2 nanocomposite for enhanced photocatalytic
    degradation of Bismarck brown, Inorg. Chem. Commun.,
  143 (2022) 109721, doi: 10.1016/j.inoche.2022.109721. 
-  S.M. Lam, Z.H. Jaffari, J.C. Sin, H.H. Zeng, H. Lin, H.X. Li,
    A.R. Mohamed, D.Q. Ng, Surface decorated coral-like magnetic
    BiFeO3 with Au nanoparticles for effective sunlight
    photodegradation of 2,4-D and E. coli inactivation, J. Mol. Liq.,
    326 (2021) 115372, doi: 10.1016/j.molliq.2021.115372. 
-  B. Pan, Y. Wu, B. Rhimi, J. Qin, Y. Huang, M. Yuan, C. Wang,
    Oxygen-doping of ZnIn2S4 nanosheets towards boosted
  photocatalytic CO2 reduction, J. Energy Chem., 57 (2021) 1–9. 
-  V. Kumar, V. Kumar, S. Som, J.H. Neethling, E. Olivier,
    O.M. Ntwaeaborwa, H.C. Swart, The role of surface
    and deep-level defects on the emission of tin oxide
    quantum dots, Nanotechnology, 25 (2014) 135701,
  doi: 10.1088/0957-4484/25/13/135701. 
-  J.F. Zhang, Y. Wang, T.K. Shen, X. Shu, J.W. Cui, Z. Chen,
    Y.C. Wu, Visible light photocatalytic performance of 
 Cu2O/TiO2 nanotube heterostructures prepared by pulse deposition,
    Acta Phys. Chim. Sin., 30 (2014) 1535–1542.
-  D.J. Yang, I. Kamienchick, D.Y. Youn, A. Rothschild,
    I.D. Kim, Ultrasensitive and highly selective gas sensors based
    on electrospun SnO2 nanofibers modified by Pd loading,
    Adv. Funct. Mater., 20 (2010) 4258–4264. 
-  L.M. Liu, W.Z. Sun, W.Y. Yang, Q. Li, J.K. Shang, Postillumination
    activity of SnO2 nanoparticle-decorated Cu2O
    nanocubes by H2O2 production in dark from photocatalytic
    “memory”, Sci. Rep., 6 (2016) 20878, doi: 10.1038/srep20878. 
-  X.Z. Yang, C.Y. Wang, B. Zhou, S.C. Cheng, Characterization of
    an iron-copper bimetallic metal-organic framework for adsorption
    of methyl orange in aqueous solution, J. Autom. Methods
    Manage. Chem., 2023 (2023) 9985984, doi: 10.1155/2023/9985984. 
-  X.Y. Cheng, R.Q. Guan, Y.N. Chen, Y.D. Qian, Q.K. Shang,
    Y.N. Sun, Adsorption and photocatalytic degradation process
    of oxytetracycline using mesoporous Fe-TiO2 based on highresolution
    mass spectrometry, Chem. Eng. J., 460 (2023) 141618,
    doi: 10.1016/j.cej.2023.141618. 
-  H.S. El-Sheshtawy, H.M. El-Hosainy, K.R. Shoueir,
    I.M. El-Mehasseb, M. El-Kemary, Facile immobilization of Ag
    nanoparticles on g-C3N4/V2O5 surface for enhancement of postillumination,
    catalytic, and photocatalytic activity removal of
    organic and inorganic pollutants, Appl. Surf. Sci., 467 (2019)
    268–276. 
-  Y.D. Chiou, Y.J. Hsu, Room-temperature synthesis of singlecrystalline
    Se nanorods with remarkable photocatalytic
    properties, Appl. Catal., B, 105 (2011) 211–219. 
-  Y. Jia, Y. Zhang, X. Zhang, J.H. Cheng, Y.J. Xie, Y. Zhang,
    X.Y. Yin, F. Song, H.Y. Cui, Novel CdS/PANI/MWCNTs
    photocatalysts for photocatalytic degradation of xanthate
    in wastewater, Sep. Purif. Technol., 309 (2023) 123022,
    doi: 10.1016/j.seppur.2022.123022. 
-  H. Gao, Y.W. Hu, Y. Xue, One-step solvothermal synthesis of
    Cu-Cu2O composite with improved photocatalytic activity
    under visible light irradiation, Micro Nano Lett., 14 (2019)
    1136–1139. 
-  J.W. Li, J.S. Guo, J.X. Zhang, Z.L. Sun, J.P. Gao, Surface
    etching and photodeposition nanostructures core-shell Cu2O@
    CuO-Ag with S-scheme heterojunction for high efficiency
    photocatalysis, Surf. Interfaces, 34 (2022) 102308, doi: 10.1016/j.
    surfin.2022.102308. 
-  K. Daideche, H. Lahmar, D. Lerari, A. Azizi, Influence
    of deposition potential on the electrochemical growth
    and photocatalysis performance of SnO2 nanostructures,
    Inorg. Chem. Commun., 147 (2023) 110154, doi: 10.1016/j.inoche.2022.110154. 
-  L. Zhao, S.M. Lam, Y.T. Ong, J.C. Sin, H.H. Zeng, Q.D. Xie,
    J.W. Lim, Fe2WO6 coupling on cube-like SrTiO3 as a highly
    active S-scheme heterojunction composite for visible light
    photocatalysis and antibacterial applications, Environ. Technol.
    Innovation, 28 (2022) 102941, doi: 10.1016/j.eti.2022.102941. 
-  H.M. Zhang, W. Xu, G. Li, Z.M. Liu, Z.C. Wu, B.G. Li, Assembly
    of coupled redox fuel cells using copper as electron acceptors
    to generate power and its in-situ retrieval, Sci. Rep., 6 (2016)
    21059, doi: 10.1038/srep21059. 
-  C.M. Fan, Y. Peng, Q. Zhu, L. Lin, R.X. Wang, A.W. Xu,
	  Synproportionation reaction for the fabrication of Sn2+ self-doped
	  SnO2–x nanocrystals with tunable band structure and
    highly efficient visible light photocatalytic activity, J. Phys.
    Chem. C, 46 (2013) 24157–24166.