Photocatalytic reduction of low-concentration CO₂ by metal–organic frameworks

Abstract

Direct conversion of the diluted CO2 to value-added chemical stocks and fuels with solar energy is an energy-saving approach to relieve global warming and realize carbon-neutral cycle. The exploration of...

Rational Construction of Metal Organic Framework Hybrid Assemblies for Visible Light-Driven CO2 Conversion

“…According to previous reports, g-C 3 N 4 had little adsorption capacity for CO 2 , so most of the CO 2 adsorption by Co-MOF/g-C 3 N 4 was attributed to the adsorption capacity of Co-MOFs. The presence of MOFs increased the specific surface area, catalytic activity sites, and CO 2 adsorption of the composites, all of which were beneficial to the photocatalytic reaction. − …”

Catalytic heterostructured materials for CO2 mitigation and conversion into fuels: a renewable energy approach towards a sustainable environment

“…In a recent study, in addition to their advantages including high porosity and active sites, large specific surface area, and high CO 2 adsorption, MOFs demonstrated enhanced catalytic performance at low-concentration CO 2 . 263 In another study, a porous coordination polymer (PCP)-based catalyst, PCP-RuII composite, demonstrated high catalytic activity under low CO 2 concentrations (5% CO 2 /Ar gas mixture). 260 Similarly, 76% selectivity for CO 2 to CO conversion was shown by using a covalent organic framework bearing single Ni sites (Ni-TpBpy) when the CO 2 partial pressure was reduced to 0.1 atm.…”

Novel benzimidazole-linked microporous conjugated polymers for highly selective adsorption and photocatalytic reduction of diluted CO2

“…[3][4][5][6] As is known, the actual CO 2 concentration in the industrial exhaust gas, such as the flue gas emitted from coalfired power plants, is generally below 15%. 7,8 The high cost of the CO 2 condensation and purification technology makes the utilization and conversion of pure or high-concentration CO 2 unfavorable. [9][10][11][12][13] From the perspective of practical applications, the exploration of efficient photocatalysts that can directly utilize low-concentration CO 2 from gas mixtures will provide a great deal of real benefits, such as simplified procedures, energy-saving and low-cost, but this field is still in the initial stage.…”