Photocatalytic properties of Co/Co3O4 films recycled from spent Li-ion batteries

被引：9

作者：

Falqueto, J. B. ^{[1
]}

Magnago, L. B. ^{[2
]}

Rocha, A. K. S. ^{[2
]}

Pegoretti, V. C. B. ^{[2
]}

Dixini, P. V. M. ^{[3
]}

Celante, V. G. ^{[3
]}

Lelis, M. F. F. ^{[2
]}

Freitas, M. B. J. G. ^{[2
]}

机构：

[1] Univ Fed Sao Carlos, Dept Chem, Rod Washington Luis Km 235, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Fed Espirito Santo, Dept Chem, Lab Electrochem & Electroanalyt, Ave Fernando Ferrari 514, BR-29075910 Vitoria, ES, Brazil

[3] Fed Inst Educ Sci & Technol Espirito Santo, BR-29192733 Aracruz, ES, Brazil

来源：

IONICS | 2018年 / 24卷 / 07期

关键词：

Li-ion batteries; Catalyzes; Ionic conductivities; Thin films; Batteries; REACTIVE BLACK 5; CATHODES; RECOVERY; METALS; COBALT;

D O I：

10.1007/s11581-018-2614-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cobalt recycled from spent Li-ion batteries has been used in the catalysis of azo dye. Metallic cobalt with a compact hexagonal structure was recycled by electrodeposition after leaching a solution of Li-ion battery cathode and applying a potential of - 1.1 V, with charge density = 15 C cm(-2) and pH = 2.7. This cobalt, with H2O2 0.27 mol L-1, was used for degradation of azo dye. H2O2 transformed Co in situ into Co3O4 with a spinel-type structure. Co3O4 was confirmed by Raman spectrum bands in the region of 450 and 700 cm(-1) (.) The kinetics of the degradation reactions are of first order. Discoloration efficiency of 85% was reached after 210 min under UV radiation. Formation of Co3O4 in situ is an innovative and efficient method to solve two problems: Li-ion battery recycling and azo dye discolorization.

引用

页码：2167 / 2173

页数：7

共 50 条

[1] Photocatalytic properties of Co/Co3O4 films recycled from spent Li-ion batteries
J. B. Falqueto
L. B. Magnago
A. K. S. Rocha
V. C. B. Pegoretti
P. V. M. Dixini
V. G. Celante
M. F. F. Lelis
M. B. J. G. Freitas
Ionics, 2018, 24 : 2167 - 2173
[2] Recycling of cobalt from spent Li-ion batteries as β-Co(OH)2 and the application of Co3O4 as a pseudocapacitor
Barbieri, E. M. S.
Lima, E. P. C.
Lelis, M. F. F.
Freitas, M. B. J. G.
JOURNAL OF POWER SOURCES, 2014, 270 : 158 - 165
[3] A nanocrystalline Co3O4 thin film electrode for Li-ion batteries
Wang, Y
Fu, ZW
Qin, QZ
THIN SOLID FILMS, 2003, 441 (1-2) : 19 - 24
[4] Synthesis, characterization and photocatalytic properties of nanostructured CoFe2O4 recycled from spent Li-ion batteries
Moura, M. N.
Barrada, R. V.
Almeida, J. R.
Moreira, T. F. M.
Schettino, M. A.
Freitas, J. C. C.
Ferreira, S. A. D.
Lelis, M. F. F.
Freitas, M. B. J. G.
CHEMOSPHERE, 2017, 182 : 339 - 347
[5] Co3O4 and its composites for high-performance Li-ion batteries
Shi, Yuxin
Pan, Xiaofan
Li, Bing
Zhao, Mingming
Pang, Huan
CHEMICAL ENGINEERING JOURNAL, 2018, 343 : 427 - 446
[6] Enhanced Lithium Storage in Co3O4/carbon Anode for Li-ion Batteries
Marzuki, Nur Syukirah
Taib, Nur Umira
Hassan, Mohd Faiz
Idris, Nurul Hayati
ELECTROCHIMICA ACTA, 2015, 182 : 452 - 457
[7] Controllable preparation of Co3O4 nanosheets and their electrochemical performance for Li-ion batteries
Hao, Qin
Li, Menghua
Jia, Suzhen
Zhao, Xiaoyun
Xu, Caixia
RSC ADVANCES, 2013, 3 (21) : 7850 - 7854
[8] Photocatalytic properties of Co3O4/LiCoO2 recycled from spent lithium-ion batteries using citric acid as leaching agent
Santana, I. L.
Moreira, T. F. M.
Lelis, M. F. F.
Freitas, M. B. J. G.
MATERIALS CHEMISTRY AND PHYSICS, 2017, 190 : 38 - 44
[9] Li Storage and Impedance Spectroscopy Studies on Co3O4, CoO, and CoN for Li-Ion Batteries
Reddy, M. V.
Prithvi, Gundlapalli
Loh, Kian Ping
Chowdari, B. V. R.
ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (01) : 680 - 690
[10] Mesocrystal Co3O4 nanoplatelets as high capacity anode materials for Li-ion batteries
Su, Dawei
Dou, Shixue
Wang, Guoxiu
NANO RESEARCH, 2014, 7 (05) : 794 - 803

← 1 2 3 4 5 →