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Pretreatment of wastepaper with an aqueous solution of amino acid-derived ionic liquid for biochar production as adsorbent.
Jia, Yi; Nian, Shuai; Zhao, Wenxia; Fu, Lin; Zhang, Xiaokai; Beadham, Ian; Zhao, Shuchang; Zhang, Changbo; Deng, Yun.
Afiliação
  • Jia Y; School of Environment and Ecology, Jiangnan University, Wuxi, 214122, China; Institute of Future Food Technology, JITRI, Yixing, 214200, China. Electronic address: 6211403005@stu.jiangnan.edu.cn.
  • Nian S; School of Environment and Ecology, Jiangnan University, Wuxi, 214122, China; Tongling Nonferrous Metals Holding Company Nonferrous Metals Technology Center, Tongling, 244000, China. Electronic address: 18656202670@163.com.
  • Zhao W; School of Environment and Ecology, Jiangnan University, Wuxi, 214122, China. Electronic address: 6211405038@stu.jiangnan.edu.cn.
  • Fu L; Key Laboratory of Original Agro‒Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs (MARA), Agro‒Environmental Protection Institute, MARA/ Tianjin Key Laboratory of Agro‒Environment and Agro‒Product Safety, MARA, Tianjin, 300191, China. Electronic addres
  • Zhang X; School of Environment and Ecology, Jiangnan University, Wuxi, 214122, China. Electronic address: xiaokai.zhang@jiangnan.edu.cn.
  • Beadham I; School of Pharmacy and Chemistry, Kingston University, Kingston Upon Thames KT1 2EE, UK. Electronic address: I.Beadham@kingston.ac.uk.
  • Zhao S; School of Environment and Ecology, Jiangnan University, Wuxi, 214122, China. Electronic address: 1104210202@stu.jiangnan.edu.cn.
  • Zhang C; Key Laboratory of Original Agro‒Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs (MARA), Agro‒Environmental Protection Institute, MARA/ Tianjin Key Laboratory of Agro‒Environment and Agro‒Product Safety, MARA, Tianjin, 300191, China. Electronic addres
  • Deng Y; School of Environment and Ecology, Jiangnan University, Wuxi, 214122, China. Electronic address: dengyun@jiangnan.edu.cn.
J Environ Manage ; 360: 121195, 2024 Jun.
Article em En | MEDLINE | ID: mdl-38761622
ABSTRACT
The carbonization of lignocellulosic biomass with ionic liquids (ILs) are considered as an advantageous approach for the preparation of carbonaceous materials. The commonly used imidazolium and pyridinium based ILs have drawbacks such as toxicity, resistance to biodegradation, high cost and viscosity. These issues can be mitigated by diluting ILs with water, although excessive water content above 1 wt% can reduce the solubility of biomass. This research aims to investigate the potential of pretreating wastepaper with a "fully green" ILs, amino acid-based IL with high water content, followed by pyrolysis without IL, in enhancing the properties of biochar. For this purpose, the paper was treated with an aqueous solution of IL cysteine nitrate ([Cys][NO3]), and the IL was not involved in the pyrolysis process to prevent the formation of secondary gaseous pollutants. The findings revealed that the hemicellulose and mineral filler in the paper were eliminated during pretreatment, leading to higher carbon content but lower oxygen content. As a result, the biochar exhibited micropores of 0.42 cm3g-1 and a specific surface area of 1011.21 m2 g-1. The biochar demonstrated high adsorption capacities for Cd2+, enrofloxacin, bisphenol A, ciprofloxacin, and tetracycline, with values of 45.20 mg g-1, 49.82 mg g-1, 49.90 mg g-1, 49.88 mg g-1, and 49.65 mg g-1, respectively. The proposed mechanism for the adsorption of enrofloxacin by the biochar primarily involves physical adsorption such as pore filling and electrostatic interactions, along with chemical adsorption facilitated by graphitic nitrogen.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Carvão Vegetal / Líquidos Iônicos / Aminoácidos Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Carvão Vegetal / Líquidos Iônicos / Aminoácidos Idioma: En Ano de publicação: 2024 Tipo de documento: Article