In:
Green Chemistry, Royal Society of Chemistry (RSC), Vol. 24, No. 23 ( 2022), p. 9253-9262
Abstract:
Using liquid water as a proton source could greatly improve the economy of photocatalytic ammonia synthesis and environmental protection. However, the commonly used powder dispersion diphase system (liquid–solid) is seriously hindered by the scarce N 2 supply and the waste of photothermal energy. Here, a triphase reaction system (gas–solid–liquid) was constructed through a bismuth/carbon cloth (Bi/CC) float, which was self-supported on liquid water and directly exposed to a N 2 -gas atmosphere. Assisted by the plentiful N 2 capture and efficient use of the photothermal effect of the CC for N 2 co-activation, this Bi/CC float triphase system breaks the N 2 concentration-dependent limitation in the traditional diphase system and exhibited a photothermal temperature ( T )-dependent characteristic. A higher ammonia yield of 2.85 mmol L −1 h −1 g −1 in the Bi/CC triphase system was achieved compared to that of 0.70 mmol L −1 h −1 g −1 in a diphase system. Moreover, this triphase system also exhibited good stability and sunlight-driven feasibility, showing a real possibility for practical application in photocatalytic ammonia synthesis.
Type of Medium:
Online Resource
ISSN:
1463-9262
,
1463-9270
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
1485110-6
detail.hit.zdb_id:
2006274-6
