Metal−organic framework (MOFs) films have a wide range of applications in gas separation and chemical sensing. By contrast, MOF films have rarely been reported in the field of photocatalysis. Compared with crystalline MOF powders, the photocatalysis of films can surmount the defects of agglomeration, light scattering, and poor recyclability. The preparation of suitable MOF films for high-efficiency photocatalytic CO 2 reduction is currently the research focus. Herein, we successfully prepared zirconium-based MOF particles on PET (polyethylene terephthalate) fiber textiles (denoted as PET@NH 2 -UiO-66 film) by a straightforward hydrothermal method and investigated visible-light-driven photocatalytic overall reduction of CO 2 . The powder X-ray diffraction and scanning electron microscopy images demonstrate that the NH 2 -UiO-66 particles grew well on PET fiber textiles. The photocatalytic performance of the PET@NH 2 -UiO-66 film was studied in gas−solid and pure water systems without sacrificial agents. The photocatalytic results show that the PET@NH 2 -UiO-66 film has excellent photocatalytic activity, and reusability is better than that of the NH 2 -UiO-66 powder. By measuring the photocurrent response and electrochemical impedance spectroscopy, the results demonstrate that the electron−hole pairs of the film separate rapidly. Moreover, a possible mechanism of overall photoreduction of CO 2 was proposed. This work provides a straightforward and simple strategy to design flexible and stable MOF films for visible-light-driven efficient overall photocatalytic reduction of CO 2 .
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