We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Silk Sericin Enrichment through Electrodeposition and Carbonous Materials for the Removal of Methylene Blue from Aqueous Solution.
- Authors
Ji, Yansong; Zhang, Xiaoning; Chen, Zhenyu; Xiao, Yuting; Li, Shiwei; Gu, Jie; Hu, Hongmei; Cheng, Guotao
- Abstract
The recycling and reuse of biomass waste for the preparation of carbon-based adsorbents is a sustainable development strategy that has a positive environmental impact. It is well known that a large amount of silk sericin (SS) is dissolved in the wastewater from the silk industry. Utilizing the SS instead of discharging it into the environment without further treatment would reduce environmental and ecological problems. However, effective enrichment of the SS from the aqueous solution is a challenge. Here, with the help of carboxymethyl chitosan (CMCS), which can form a gel structure under low voltage, an SS/CMCS hydrogel with SS as the major component was prepared via electrodeposition at a 3 V direct-current (DC) voltage for five minutes. Following a carbonization process, an SS-based adsorbent with good performance for the removal of methylene blue (MB) from an aqueous solution was prepared. Our results reveal that the SS/CMCS hydrogel maintains a porous architecture before and after carbonization. Such structure provides abundant adsorption sites facilitating the adsorption of MB molecules, with a maximum adsorptive capacity of 231.79 mg/g. In addition, it suggests that the adsorption is an exothermic process, has a good fit with the Langmuir model, and follows the intra-particle diffusion model. The presented work provides an economical and feasible path for the treatment of wastewater from dyeing and printing.
- Subjects
METHYLENE blue; SERICIN; AQUEOUS solutions; WASTE recycling; WASTEWATER treatment; SUSTAINABLE development; ELECTROPLATING; HYDROGELS
- Publication
International Journal of Molecular Sciences, 2022, Vol 23, Issue 3, p1668
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms23031668