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• Energy storage heterojunction has broad-spectrum degradation capability in the dark. • The S-scheme interface electric field enhances piezoelectric effect of heterojunction. • Under NIR, the double LSPR effect enhanced photocatalytic ability of heterojunction. Hydrothermal heterogeneous nucleation forms S-scheme BiOBr@Bi 2 O 2 (CO 3) 1-x N x heterojunction energy storage materials. Interface electric field makes intrinsic polarization electric field of BiOBr and Bi 2 O 2 (CO 3) 1-x N x form a series polarization electric field, which enhances its polarization electric field and piezoelectric effect. Its d 33 value is 4.30 nm·V−1, and 67.73 μmol·g−1 electrons and 84.72 μmol·g−1 holes are stored. Under darkness for 50 min, its degradation rates for ciprofloxacin, tetracycline, and bisphenol A were 79.13 %, 48.84 %, and 86.54 %, respectively, which showed circulation stability and repair ability. Electrons and holes stored in near infrared light form double local surface plasmon resonance effect to generate hot electrons and hot holes, BiOBr photogenerated electrons and Bi 2 O 2 (CO 3) 1-x N x photogenerated holes are continuously supplemented by piezoelectric effect, and the degradation rates of ciprofloxacin, tetracycline, and bisphenol A are 62.43 %, 68.6 % and 88.34 % respectively after 25 min. This work provides a new idea for preparing energy storage catalyst with broad-spectrum degradation ability in dark-full spectrum. [ABSTRACT FROM AUTHOR]

An energy storage BiOBr@Bi 4 O 5 Br 2 heterojunction piezoelectric catalyst was prepared by homogeneous nucleation hydrothermal crystallization. The interfacial electric field enhances the polarization electric field and the piezoelectric effect of the heterojunction, the stored electron and hole concentrations are 94.23 and 86.17 μmol·g−1, respectively, and d 33 is increased to 6.29 nm·V−1. In the dark for 50 min, the degradation rates of tetracycline, ciprofloxacin and bisphenol A caused by energy storage and positive piezoelectric effect are 63.44%, 75.95% and 73.90%, respectively, and it has good dark cycle stability and dark repair. Under the visible and near infrared light, the double localized surface plasmon resonance effects of heterojunction electron-hole storage and the enhanced series polarized electric field accelerate the migration rate of stored electrons and holes. This work provides a new idea of the preparation of around the clock energy storage piezoelectric catalytic materials from traditional energy storage bismuth-based nanomaterials with the intrinsic polarization electric field. [Display omitted] • The interfacial electric field enhances the polarization electric field and piezoelectric effect of heterojunction. • Energy storage BiOBr@Bi 4 O 5 Br 2 heterojunction stores electrons and holes under the action of series polarized electric field. • Heterojunction has repairable and broad-spectrum around the clock energy storage piezoelectric catalytic performance. [ABSTRACT FROM AUTHOR]

A round-the-clock Ag/BiO 2−x /Bi 2 O 2.75 energy storage catalyst with the unique electron-hole storage mechanism is prepared by natural photo-deposition method. Ag is directional deposited on the surface of BiO 2−x due to the Z-scheme mechanism, and electrons and holes are severally stored in Ag and Bi 2 O 2.75. The recombination of electron-hole pairs is efficiently suppressed owing to the formation of Schottky junction, and the capacitance nature of Ag, leading to that the concentrations of the stored electrons and holes are markedly increased from 24.94 and 0.0042 μmol·g−1 to 86.55 and 0.0481 μmol·g−1. Hence, Ag/BiO 2−x /Bi 2 O 2.75 shows the boosted and long-lasting dark catalytic activity for organic pollutants mineralization, meanwhile possessing appealing structural stability, recyclability and repairability. Furthermore, the generation of the reactive oxygen species is promoted and NO oxidation pathway is changed due to the light-induced surface plasmon resonance effect of the stored electrons and holes and the resultant near-field enhancement effect, resulting in the significantly enhanced full-spectrum photocatalytic performance for antibiotic degradation and NO deep oxidation. This work may open up new horizons for the design and preparation of high-active round-the-clock catalytic materials. [Display omitted] • Round-the-clock Ag/BiO 2−x /Bi 2 O 2.75 with electron-hole storage mechanism is prepared. • Storage concentrations of electrons and holes are respectively increased by 3.46 and 11.45 times. • Enhanced and long-lasting dark catalyst activity are achieved. • Heterojunction shows the boosted full-solar-spectrum catalytic performance. • NO oxidation pathway is changed from NO→NO 2 /N 2 O 4 →NO 2 -/NO 3 - to NO→NO+/N 2 O 2 2-→NO 2 -/NO 3 -. [ABSTRACT FROM AUTHOR]