TY - JOUR
T1 - Structural characteristics of dissolved black carbon and its interactions with organic and inorganic contaminants
T2 - A critical review
AU - Hameed, Rashida
AU - Li, Guanlin
AU - Son, Yowhan
AU - Fang, Huajun
AU - Kim, Taewan
AU - Zhu, Chaodong
AU - Feng, Yanfang
AU - Zhang, Lihua
AU - Abbas, Adeel
AU - Zhao, Xin
AU - Wang, Jiaqian
AU - Li, Jian
AU - Dai, Zhicong
AU - Du, Daolin
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/5/10
Y1 - 2023/5/10
N2 - Biochar (BC) is a sustainable and renewable carbonaceous material, and its soluble component, dissolved black carbon (DBC), is the key to understanding BC's geological and environmental processes. Although the relationship between the changes in DBC structure and its properties, functions, and associated environmental risks has been explored, a gap remains in our understanding of DBC's fate and behavior in the natural environment. Thus, in this review, we have highlighted the molecular and chemical compositions and the structural evolution of DBC during pyrolysis, the influence of DBC's physicochemical properties on its fate and transport, DBC's interaction with soil and its contaminants, and DBC stability in soil and water environments along with potential risks. Based on our in-depth assessment of DBC and its biogeochemical roles, we believe that future studies should focus on the following: (1) using advanced techniques to understand the chemical and molecular structure of DBC deeply and concisely and, thus, determine its fundamental role in the natural environment; (2) investigating the multi-functional properties of DBC and its interaction mechanisms; and (3) evaluating the environmental behaviors of and risks associated with DBC after BC application. In future, it is necessary to gain a deeper insight into the fate and transport of DBC with contaminants and study its associated risks under BC application in the environment.
AB - Biochar (BC) is a sustainable and renewable carbonaceous material, and its soluble component, dissolved black carbon (DBC), is the key to understanding BC's geological and environmental processes. Although the relationship between the changes in DBC structure and its properties, functions, and associated environmental risks has been explored, a gap remains in our understanding of DBC's fate and behavior in the natural environment. Thus, in this review, we have highlighted the molecular and chemical compositions and the structural evolution of DBC during pyrolysis, the influence of DBC's physicochemical properties on its fate and transport, DBC's interaction with soil and its contaminants, and DBC stability in soil and water environments along with potential risks. Based on our in-depth assessment of DBC and its biogeochemical roles, we believe that future studies should focus on the following: (1) using advanced techniques to understand the chemical and molecular structure of DBC deeply and concisely and, thus, determine its fundamental role in the natural environment; (2) investigating the multi-functional properties of DBC and its interaction mechanisms; and (3) evaluating the environmental behaviors of and risks associated with DBC after BC application. In future, it is necessary to gain a deeper insight into the fate and transport of DBC with contaminants and study its associated risks under BC application in the environment.
KW - Biochar
KW - Dissolved black carbon
KW - Interaction
KW - Organic contaminants
KW - Structural properties
UR - http://www.scopus.com/inward/record.url?scp=85150311829&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2023.162210
DO - 10.1016/j.scitotenv.2023.162210
M3 - Review article
C2 - 36791863
AN - SCOPUS:85150311829
SN - 0048-9697
VL - 872
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 162210
ER -
