Encapsulating Perovskite Quantum Dots in Iron‐Based Metal–Organic Frameworks (MOFs) for Efficient Photocatalytic CO₂ Reduction

Abstract

Theauthors declare no conflict of interest.Keywords: CO 2 reduction ·i ron ·metalorganic frameworks (MOFs) ·perovskite quantum dots · photocatalysis Figure 3. a) Mott-Schottky plots of PCN-221(Fe 0.2 )and b) MAP-bI 3 @PCN-221(Fe 0.2 ). c) Steady-state photoluminescence spectrao f PCN-221, PCN-221(Fe 0.2 ), MAPbI 3 @PCN-221,a nd MAPbI 3 @PCN-221-(Fe 0.2 ). d) Time-resolved photoluminescence decays of PCN-221, PCN-221(Fe 0.2 ), MAPbI 3 @PCN-221, and MAPbI 3 @PCN-221(Fe 0.2 )with ET519LP as long-wavelength pass filter,after excitation at 375 nm.

Facile electron delivery from graphene template to ultrathin metal-organic layers for boosting CO2 photoreduction

“…To address these issues, metal-organic frameworks (MOFs), bene ting from their porous feature, ordered structure and molecular tunability, have been widely used to mediate photocatalytic CO 2 reduction. [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] In this eld, Lin et al, 16 incorporated Re(CO) 3 (bpy)Cl (bpy = bipyridine) modules into the UiO-67 framework, achieving a total turnover number (TON) of 10.9 in photocatalytic CO 2 -to-CO conversion. Wang et al achieved a high TON of 450 by using a Co-based zeolitic imidazolate framework as the cocatalyst in the presence of [Ru(bpy) 3 ] 2+ photosensitizer (PS).…”

“…15 Recently, perovskite quantum dots were introduced into MOF matrices to synergistically catalyze CO 2 photoreduction. 17,18 For CO 2 reduction, great progress has been achieved with MOFs as low-cost catalysts. However, their performances were seriously hindered by the generally bulky nature with insu cient active sites and lethargic mass/charge transfer.…”

Halide perovskite photocatalysis: progress and perspectives

“…Recently, Wu et al reported a novel strategy for enhancing the efficiency of photocatalysis for the CO 2 RR and improving the stability of HPs by encapsulating MAPbI 3 QDs into the porous framework of Fe-porphyrin-based MOF PCN-221(Fe x ). 81 The composite was synthesized following the sequential deposition method (Fig. 8(a)), whereby pristine PCN-221(Fe x ) was first dipped in DMF/ethanol PbI 2 solution, followed by treatment with MAI ethanol solution.…”

Recent advances in synthesis and application of perovskite quantum dot based composites for photonics, electronics and sensors

“…And, by using ethyl acetate as the solvent for CO 2 , where ethyl acetate could help stabilize the QDs, no degradation was observed after working 12 h [116]. Other composites as CsPbBr 3 /g-C 3 N 4 nanosheet with chemical bonding [168], HP-QDs /metal-organic framework (MOF) with outstanding yield of 1559 μmol/g were also reported [169,170]. Another composite Ag-CsPbBr 3 /CN was fabricated and reported by Zhao et al to degrade 7-aminocephalosporanic acid and exhibited outstanding catalytic activity due to the reduced charge recombination, improved chargeseparation efficiency and light absorption of the whole composite structure [115].…”