TY - JOUR
T1 - A green strategy to synthesize two-dimensional lead halide perovskite via direct recovery of spent lead-acid battery
AU - Wang, Junxiong
AU - Yang, Jiakuan
AU - Hou, Huijie
AU - Li, Wei
AU - Hu, Jingping
AU - Li, Mingyang
AU - Yu, Wenhao
AU - Wang, Zhongyi
AU - Liang, Sha
AU - Xiao, Keke
AU - Liu, Bingchuan
AU - Xi, Kai
AU - Kumar, R. Vasant
N1 - Publisher Copyright:
© 2021
PY - 2021/6
Y1 - 2021/6
N2 - Hybrid organic-inorganic perovskite is a class of emerging materials with promising application prospects in optoelectronics. However, the consumption of lead resources and poor stability in moisture environment have limited their practical applications. Herein, a family of air-stable two-dimensional (2D) hybrid organic-inorganic perovskite crystal (C4H9NH3)2PbX4 (X=Cl, Br, I or mixed halides of them) is efficiently synthesized by direct recovery of spent lead-acid battery (LAB) paste. More than 95 wt% of the total lead element in spent lead paste could be recovered and converted into low-impurity lead ion solution via a facile recovery process at room temperature. Then 2D hybrid perovskite crystal is synthesized from the recovered lead ion solution with a one-pot solvent evaporation method. Excellent air stability is observed for the prepared perovskite crystals after exposure in high-humidity air at a high temperature of 75 °C, attributing to its layered structure which is capped with long-chain hydrophobic alkyl groups. The emission wavelengths of the synthesized perovskite crystals are tunable from 380 to 560 nm (corresponding to visible purple to yellow light) by compositional modulations, demonstrating their potential applications as optoelectronic materials. This research has proposed a promising strategy to synthesize high-value 2D hybrid perovskite optoelectronic materials directly recovered from spent LAB.
AB - Hybrid organic-inorganic perovskite is a class of emerging materials with promising application prospects in optoelectronics. However, the consumption of lead resources and poor stability in moisture environment have limited their practical applications. Herein, a family of air-stable two-dimensional (2D) hybrid organic-inorganic perovskite crystal (C4H9NH3)2PbX4 (X=Cl, Br, I or mixed halides of them) is efficiently synthesized by direct recovery of spent lead-acid battery (LAB) paste. More than 95 wt% of the total lead element in spent lead paste could be recovered and converted into low-impurity lead ion solution via a facile recovery process at room temperature. Then 2D hybrid perovskite crystal is synthesized from the recovered lead ion solution with a one-pot solvent evaporation method. Excellent air stability is observed for the prepared perovskite crystals after exposure in high-humidity air at a high temperature of 75 °C, attributing to its layered structure which is capped with long-chain hydrophobic alkyl groups. The emission wavelengths of the synthesized perovskite crystals are tunable from 380 to 560 nm (corresponding to visible purple to yellow light) by compositional modulations, demonstrating their potential applications as optoelectronic materials. This research has proposed a promising strategy to synthesize high-value 2D hybrid perovskite optoelectronic materials directly recovered from spent LAB.
KW - Lead recovery
KW - Optoelectronics
KW - Solvent evaporation synthesis
KW - Spent lead-acid battery
KW - Two-dimensional (2D) hybrid perovskite
UR - http://www.scopus.com/inward/record.url?scp=85100469361&partnerID=8YFLogxK
U2 - 10.1016/j.resconrec.2021.105463
DO - 10.1016/j.resconrec.2021.105463
M3 - 文章
AN - SCOPUS:85100469361
SN - 0921-3449
VL - 169
JO - Resources, Conservation and Recycling
JF - Resources, Conservation and Recycling
M1 - 105463
ER -