Confined amorphous red phosphorus in metal–organic framework as a superior photocatalyst

Elemental phosphorus for recent sustainable processes: rules and strategies in preparation and applications

“…Through the reasonable design of the synthesis method, an interface with close contact and good electrical conductivity can be obtained, which is conducive to the full performance of the RP matrix composite material. Some typical cases of elemental P-based photocatalytic degradation materials in recent years are summarized in Table 4 for comparison purposes, such as ZIF-67/RP, 138 MoS 2 /RP, 139 g-C 3 N 4 /RP, 87 etc. RP showed good potential for microbial degradation in water.…”

Red Phosphorus: An Up-and-Coming Photocatalyst on the Horizon for Sustainable Energy Development and Environmental Remediation

“…345 On the grounds of these characteristics, ZIF regularly serves as a catalyst support as demonstrated by the work of Ma and coworkers who prepared a composite photocatalyst comprising Zeolitic imidazolate framework-67 and RP (ZIF-67/RP) for the simultaneous photoreduction and photooxidation of Cr(VI) and RhB, respectively. 346 On the basis of the XRD analysis, the wider peak exhibited by the ZIF-67/RP in comparison to pure RP implied the inhibition of overgrowth and agglomeration of RP by ZIF-67, thus producing smaller-sized photocatalyst. By virtue of the augmented pore size, increased light responsivity and suppressed recombination of photoinduced charge carriers, the adsorption rates of ZIF-67/RP for Cr(VI) and RhB were determined to be 78% and 65%, respectively, which was a near 2times increase as compared to pristine RP.…”

“…The cooperative effects between ZIF-67 and RP were subsequently evaluated by the concurrent photoreduction and photooxidation of Cr(VI) and RhB and the coexistence between the two catalytic materials in the same reaction environment achieved a k value of 10.7 × 10 −2 min −1 for the degradation of Cr(VI) whereas a k value of 11.1 × 10 −2 min −1 was reached for the photodegradation of RhB. 346 The synchronizm between Cr(VI) and RhB in the same environment can accelerate the rate of photocatalytic reactions such that Cr(VI) functioned as an electron acceptor for heavy metal reduction whereas RhB held the role of an electron donor for organic material oxidation. In addition to the synergism between photocatalytic reduction and oxidation, the principal reasons underlying the superlative photocatalytic performance of ZIF-67/RP could be ascribed to the improved photoresponsiveness, increased electron density and the higher separation efficiency of light-induced charge carriers.…”

Construction of Bi2Fe4O9/red phosphorus heterojunction for rapid and efficient photo‐reduction of Cr(VI)

“…The k of 3%BFO/ HRP was the highest, which was about 15 times than that of pure HRP. In addition, some typical RP-based photocatalysts and bismuth-based photocatalysts used for the treatment of Cr(VI) wastewater in recent years were shown in Table S1 21,22,25,26,[39][40][41][42][43][44] . The 3%BFO/HRP composite exhibited better performance and obvious advantages, indicating that the catalyst had a unique potential in the treatment of Cr(VI) wastewater.…”

“…Red phosphorus (RP) is a novel non-metallic semiconductor photocatalyst with suitable energy band structure and bandgap width (E g =1.8 eV), therefore, RP-based photocatalysts are often used for photocatalytic water splitting to produce hydrogen, [15][16][17][18][19] photodegradation of organic pollutants, [20][21][22][23][24] and photoreduction of heavy metal ions. 21,25,26 Whereas, the photogenerated electrons and holes of RP are easily recombined in the bulk, limiting its photocatalytic performance and leaving it far from practical applications.…”