Preparation of Polyaniline/Cellulose Nanofiber Aerogel for Efficient Removal of Cr(Ⅵ) from Aqueous Solution

• 作者: LI Jiaqiang LIAO Yaozu LÜ Wei YU Junrong
• 来源期刊: 东华大学学报（英文版）
• 学科: 地球科学
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: Electroactive Polymers for Energy and Environmental Applications
• 页码范围: 7-14
• 页数: 8页
• 分类号: X52|TB32
• 语种: 英文
• DOI: 10.19884/j.1672-5220.202106007

摘要

Aerogel composed of polyaniline/cellulose nanofiber ( PANI/CNF ) was synthesized by a two-step method and used as an adsorbent to remove Cr ( Ⅵ ) from wastewater in this study. Adsorption results showed that PANI/CNF aerogel adsorbent exhibited a high adsorption capacity of 298. 5 mg·g-1 for Cr(Ⅵ) (318 K, pH=2. 0). Meanwhile, the adsorption process can be fitted well with the pseudo-second-order model and the Freundlich model. Moreover, the Cr( Ⅵ) removal efficiency of the adsorbent remained above 85％ after ten recycling experiments, indicating that PANI/CNF aerogel had excellent stability and reusability. Therefore, PANI/CNF aerogel showed a potential application in the treatment of chromium-containing wastewater.