A facile chemical route for recovery of high quality zinc oxide nanoparticles from spent alkaline batteries
- Authors
- Deep, Akash; Sharma, Amit L.; Mohanta, Girish C.; Kumar, Parveen; Kim, Ki-Hyun
- Issue Date
- May-2016
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Spent batteries; Recycling; ZnO; Nanoparticles; Functional
- Citation
- WASTE MANAGEMENT, v.51, pp.190 - 195
- Indexed
- SCIE
SCOPUS
- Journal Title
- WASTE MANAGEMENT
- Volume
- 51
- Start Page
- 190
- End Page
- 195
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/5044
- DOI
- 10.1016/j.wasman.2016.01.033
- ISSN
- 0956-053X
- Abstract
- Recycling of spent domestic batteries has gained a great environmental significance. In the present research, we propose a new and simple technique for the recovery of high-purity zinc oxide nanoparticles from the electrode waste of spent alkaline Zn-MnO2 batteries. The electrode material was collected by the manual dismantling and mixed with 5 M HCl for reaction with a phosphine oxide reagent Cyanex 923 (R) at 250 degrees C for 30 min. The desired ZnO nanoparticles were restored from the Zn-Cyanex 923 complex through an ethanolic precipitation step. The recovered particle product with about 5 nm diameter exhibited fluorescent properties (emission peak at 400 nm) when excited by UV radiation (excitation energy of 300 nm). Thus, the proposed technique offered a simple and efficient route for recovering high purity ZnO nanoparticles from spent alkaline batteries.
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