Your browser doesn't support javascript.
loading
MXene/ZnS/chitosan-cellulose composite with Schottky heterostructure for efficient removal of anionic dyes by synergistic effect of adsorption and photocatalytic degradation.
Lin, Jing; Gao, Die; Zeng, Jia; Li, Zhou; Wen, Zeng; Ke, Famin; Xia, Zhining; Wang, Dandan.
Afiliação
  • Lin J; School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
  • Gao D; School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
  • Zeng J; School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
  • Li Z; School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
  • Wen Z; School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
  • Ke F; School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
  • Xia Z; School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China. Electronic address: tcm_anal_cqu@163.com.
  • Wang D; School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China. Electronic address: wangdandan_93@163.com.
Int J Biol Macromol ; 269(Pt 1): 131994, 2024 Jun.
Article em En | MEDLINE | ID: mdl-38697431
ABSTRACT
Nowadays, dye water pollution is becoming increasingly severe. Composite of MXene, ZnS, and chitosan-cellulose material (MX/ZnS/CC) was developed to remove anionic dyes through the synergistic effect of adsorption and photocatalytic degradation. MXene was introduced as the cocatalyst to form Schottky heterostructure with ZnS for improving the separation efficiency of photocarriers and photocatalytic performance. Chitosan-cellulose material mainly served as the dye adsorbent, while also could improve material stability and assist in generation of free radicals for dye degradation. The physics and chemistry properties of MX/ZnS/CC composite were systematically inspected through various characterizations. MX/ZnS/CC composite exhibited good adsorption ability to anionic dyes with adsorption capacity up to 1.29 g/g, and excellent synergistic effects of adsorption and photodegradation with synergistic removal capacity up to 5.63 g/g. MX/ZnS/CC composite performed higher synergistic removal ability and better optical and electrical properties than pure MXene, ZnS, chitosan-cellulose material, and MXene/ZnS. After compounding, the synergistic removal percentage of dyes increased by a maximum of 309 %. MX/ZnS/CC composite mainly adsorbs anionic dyes through electrostatic interactions and catalyzes the generation of •O2-, h+, and •OH to degrade dyes, which has been successfully used to remove anionic dyes from environmental water, achieving a 100 % removal of 50 mg/L dye.
Assuntos
Palavras-chave

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Celulose / Compostos de Zinco / Quitosana / Corantes Idioma: En Revista: Int J Biol Macromol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Celulose / Compostos de Zinco / Quitosana / Corantes Idioma: En Revista: Int J Biol Macromol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China