In:
Angewandte Chemie, Wiley, Vol. 131, No. 42 ( 2019-10-14), p. 14992-14996
Abstract:
Black liquor, an industrial waste product of papermaking, is primarily used as a low‐grade combustible energy source. Despite its high lignin content, the potential utility of black liquor as a feedstock in products manufacturing, remains to be exploited. Demonstrated here in is the use of black liquor as a primary feed‐stock for synthesizing graphene quantum dots that exhibit both up‐conversion and photoluminescence when excited using visible/near‐infrared radiation, thereby enabling the photosensitization of ultraviolet‐absorbing TiO 2 nanosheets. In addition, these graphene quantum dots can trap photo‐generated electrons to realize the effective separation of electron‐hole pairs. Together, these two processes facilitate the solar‐powered generation of H 2 from H 2 O, and CO from H 2 O–CO 2 , using broadband solar radiation.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v131.42
DOI:
10.1002/ange.201909222
Language:
English
Publisher:
Wiley
Publication Date:
2019
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505872-7
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1479266-7
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506259-7
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