文献类型：期刊文献

英文题名：Biochar with Inherited Negative Surface Charges Derived from Enteromorpha Prolifera as a Promising Cathode Material for Capacitive Deionization Technology

作者：Li, Bei[1,2] Liu, Xiaojing[2] Wang, Ao[3] Tan, Chang[3] Sun, Kang[3] Deng, Libo[4] Fan, Mengmeng[5] Cui, Jian[2] Xue, Jianhui[1,2] Jiang, Jianchun[3] Yao, Dongrui[2]

第一作者：Li, Bei

机构：[1] College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China; [2] Jiangsu Engineering Research Center of Aquatic Plant Resources and Water Environment Remediation, Institute of Botany, Chinese Academy of Sciences, Jiangsu Province, Nanjing, 210014, China; [3] Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, 210042, China; [4] College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China; [5] College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20222912386280);Scopus(收录号：2-s2.0-85134336128)

语种：英文

外文关键词：Carbonization - Cathodes - Chemical bonds - Desalination - Electronegativity - Scalability - Surface charge - Textures

摘要：The conversion of biowaste into valuable carbon-based materials is beneficial for developing a sustainable energy economy. In this study, activated carbons (ACs) are successfully synthesized by one-step carbonization using Enteromorpha prolifera (EP) as the precursor, which is a kind of ocean biowaste. Owing to the ordered anatomic texture and the naturally embedded alkalis in the source EP, the produced EP-derived ACs (EPACs) exhibit hierarchical porous structure without any support from active agents. The plentiful heteroatoms are also formed on surface of EPACs, endowing the carbon with good hydrophilicity and unique electronegativity. Consequently, the salt adsorption capacity and the charge efficiency of the capacitive deionization (CDI) system are improved by 12.1% and 11.95% respectively by replacing the commercial-AC cathode with the EPAC-800 cathode (pyrolyzed at 800 ). The potential distribution test and the modified Donnan (mD) model simulation suggest that the hierarchical pore volume of EPAC-800 offers great desalination capacity, while its surface electronegativity optimizes the potential distribution of the two electrodes. The new knowledge gained from this work will hopefully not only establish a scalable method to utilize the EP waste, but also guide the design and manufacture of high-performance electrodes for CDI technology. ? 2022, The Authors. All rights reserved.