Boosting the adsorption and photocatalytic activity of carbon fiber/MoS2-based weavable photocatalyst by decorating UiO-66-NH2 nanoparticles.

CFs/MoS 2 /UiO-66-NH 2 can be used as weavable photocatalyst to eliminate levofloxacin (LVFX) or hexavalent chromium (Cr(VI)) in water under visible-light irradiation. [Display omitted] • UiO-66-NH 2 nanoparticles decoration of MoS 2 nanosheets on carbon-fibers. • Enhanced adsorption ability due to large surface area and total pore volume. • High photocatalytic activity owing to two-component synergistic effect. • Good stability and simple recyclable process. MoS 2 -based nanocomposites on carbon fibers (CFs) have been well developed, but their practical applications are still limited owing to the unsatisfactory adsorption and photodegradation performances. To deal with these issues, we report the growth of UiO-66-NH 2 nanoparticles as a porous co-photocatalyst to decorate MoS 2 nanosheets on CFs. CFs/MoS 2 /UiO-66-NH 2 bundles are woven into a macroscopical cloth (4 × 4 cm2, 0.15 g). CFs/MoS 2 /UiO-66-NH 2 cloth can efficiently adsorb 34.9% levofloxacin (LVFX) and 35.3% hexavalent chromium (Cr(VI)) after 60 min, which is an obvious improvement (1.3–2.9 times) compared with that by CFs/MoS 2 cloth. Importantly, the cloth can remove 88.4% LVFX or 98.4% Cr(VI) within 120 min, which is 1.6–2.7 times compared with that by CFs/MoS 2 cloth, resulting from the high adsorption and two-component synergistic photocatalytic activity. Furthermore, CFs/MoS 2 /UiO-66-NH 2 shows a slight decline from 88.4% to 76.9% under visible light irradiation after 4 cycles. Thus, the semiconductor/MOF-based heterojunction on CF provides a general strategy to develop novel weavable photocatalysts for eliminating various pollutants. [ABSTRACT FROM AUTHOR]