Constructing Cu ion sites in MOF/COF heterostructure for noble-metal-free photoredox catalysis

In situ self-exsolved ultrasmall Fe2P quantum dots from attapulgite nanofibers as superior cocatalysts for solar hydrogen evolution

“…Nevertheless, many approaches for synthesizing TM-based cocatalysts are tedious and highly energy-consuming and require the use of toxic reagents, flammable gases (H 2 S, NH 3 , and CH 4 /CO), and high-purity metal precursors, which increases the cost of mass production, thus limiting large-scale application. Moreover, to increase the activity of TM-based cocatalysts towards the HER, the cocatalyst particles are often grown on large-surface-area supports (conductive nanostructured carbons, 26 metal–organic frameworks (MOFs), 27 covalent organic frameworks (COFs), 28 MXenes, 29 nanostructured metal oxides, 30 etc .) to achieve an improved dispersion and reduced size for maximizing the exposure of active sites.…”

In-situ construction of Zr-based metal-organic framework core-shell heterostructure for photocatalytic degradation of organic pollutants

“…Inspired by the natural photosynthesis process, photocatalysis has currently emerged as a promising green approach for the conversion of solar energy into chemical energy ( Gao et al, 2017 ). Due to its high efficiency, feasibility, low energy consumption, and eco-friendly feature, semiconductor-induced photocatalysis has been successfully harnessed in diverse applications including energy storage and conversion ( Wei et al, 2021 ; Han et al, 2022 ; Qin et al, 2022 ), CO 2 reduction ( Li et al, 2020 ; Xiong et al, 2020 ), organic synthesis ( Zhang et al, 2019b ; Xiong and Tang, 2021 ), Cr(VI) reduction ( Yi et al, 2019 ; Zhang et al, 2020 ) and water treatment ( Zeng et al, 2018 ; Feng et al, 2022 ; Shi et al, 2022 ). Up to present, several semiconductor photocatalysts have been intensively studied such as metal oxides [TiO 2 , ZnO, Fe 2 O 3 ( Ba-Abbad et al, 2013 ; Franking et al, 2013 ; Kreft et al, 2020 )], metal sulphides [MoS 2 , CdS, In 2 S 4 ( Ning et al, 2019 ; Liang et al, 2021 ; Pan et al, 2021 )], and organic semiconductors [(g-C 3 N 4 , perylene diimide, covalent organic framework ( Zhou et al, 2018 ; Sivula, 2020 ; Zhou et al, 2021 )].…”

Numerical Recognition System and Ultrasensitive Fluorescence Sensing Platform for Al3+ and UO22+ Based on Ln (III)-Functionalized MOF-808 via Thiodiglycolic Acid Intermediates

“…As the important branch of metal–organic frameworks (MOFs), LMOFs have bloomed out not only in the sensing of metal ions but also in other areas such as gas separation, catalysis, adsorption, and so on. , Among the reported metal-based LMOFs, lanthanide-containing metal–organic frameworks (Ln-MOFs) have attracted tremendous attention as efficient chemical sensors for the sensing of metal ions owing to their high photostability and large stokes shift. , Furthermore, Ln-MOFs can be divided as Ln 3+ -centered MOFs by in situ synthesis and lanthanide (III)-functionalized MOFs by postsynthetic modification (PSM). By the way, the PSM method has been widely used to obtain MOFs with better performance. , In both of them, lanthanides can be sensitized via the energy transfer from organic linkers to metal ions (antenna effect). , To date, only a few Ln 3+ -centered MOFs were applied for the sensing of Al 3+ and UO 2 2+ , and the recent cases include {[Eu­(BTB)­(phen)]·4.5DMF·2H 2 O} n , Eu-MOF, Tb-TATAB, and [Eu 2 (MTBC)­(OH) 2 (DMF) 3 (H 2 O) 4 ]·2DMF·7H 2 O .…”