Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Human Health Effects Remediation Sign in to save

La-doped Ti/Sb-SnO2 electrode enhanced removal of microplastics by advanced electrocatalysis oxidation process (AEOP) strategy

Desalination and Water Treatment 2024 20 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 65 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Weikang Zheng, Weikang Zheng, Weikang Zheng, Weikang Zheng, Weikang Zheng, Zhenzhong Liu, Boyan Wang, Boyan Wang, Zhenzhong Liu, Hongwei Yang, Hongwei Yang, Zhenzhong Liu, Zhenzhong Liu, Zhenzhong Liu, Zhenzhong Liu, Boyan Wang, Hongwei Yang, Hongwei Yang, Hongwei Yang Hongwei Yang Zhanli Chen, Zhanli Chen, Zhanli Chen, Xiangrong Sun, Boyan Wang, Hongwei Yang, Xiangrong Sun, Hongwei Yang

Summary

Scientists developed an improved electrode using a rare earth element called lanthanum that can break down microplastics in water through an advanced electrical process. After 3 hours of treatment, the system removed about 28% of microplastics by generating powerful chemical reactions that attack the plastic particles. This technology could offer a new way to clean microplastic-contaminated water.

Microplastics (MPs) in the aqueous environments has attracted widespread attention because of its potential risk to human health.Its high stability makes it difficult to be degraded and long term presence in the environment. Therefore, it is crucial to find an efficient and clean technology to remove microplastics in water. The advanced electrocatalysis oxidation process (AEOP) shows great potential for application. In this work, We focused on preparing Ti/Sb-SnO2 electrodes doped with different rare earth elements (La, Ce, Sm or Nd) as active layer by sol-gel method. The electrooxidation system has efficiently degraded MPs in aqueous solution. The optimal parameters for the removal of MPs were electrode spacing of 1.5 cm, current density of 46.67 mA·cm−2, Na2SO4 electrolyte concentration of 0.22 mol·L−1, and initial solution pH of 7. After 3 h, MPs removal rate by Ti/La-Sb-SnO2 system reached 28.3 %, which was higher than the Ti/Ce-Sb-SnO2, Ti/Sm-Sb-SnO2, Ti/Nd-Sb-SnO2 and Ti/Sb-SnO2 electrode, the removal rates were increased by 8.23 %, 10.13 %, 16.28 % and 77 %, respectively. Electrochemical performance tests and •OH (Hydroxyl radicals) generation results indicated that the surface of Ti/La-Sb-SnO2 electrode had abundant active sites, which promoted the formation of •OH to degrade microplastics effectively. In summary, the rare earth element-doped Ti/Sb-SnO2 electrode provides crucial technological support for the electrooxidative removal of microplastics from water.

Read via DOI Download PDF

Share this paper

Post Share Share Pin Email