Partial oxidation of polyvinyl alcohol using a commercially available DSA anode
- Resource Type
- Article
- Authors
- Guo-Ting Liang; Weiyong Zhu; Xiaoqi Chai; Lingfeng Zhu; Xiwang Zhang
- Source
- Journal of Industrial and Engineering Chemistry, 31(0), pp.55-60 Nov, 2015
- Subject
- 화학공학
- Language
- English
- ISSN
- 1876-794X
1226-086X
The removal of polyvinyl alcohol (PVA) by electrochemical oxidation was investigated systematicallyunder various conditions using a commercial Dimensionally Stable Anodes anode. It was observed thathigher electrode potential led to more PVA degradation and gases evolution. Acidic conditions werebeneficial for PVA degradation. The higher degradation of PVA was achieved with KBr compared withother salts. The PVA degradation was slightly improved by ultraviolet irradiation while hydrogenperoxide lowered the degradation evidently. FTIR analysis indicated that PVA was partially oxidizedrather than completely mineralized. The iso-propanol quenching test indicated hydroxyl radicals weremainly responsible for PVA degradation.