文献类型：期刊文献

英文题名：Tailoring microstructure and microenvironment in carbonaceous sorbent for all-round superior naphthalene capture

作者：Wang, Qianyu[1];Qin, Mingli[1,2,3];Wu, Haoyang[1];Zhao, Yang[1];Zhang, Chuanzhao[4];Zhou, Shiqi[1];Jia, Baorui[1];Liu, Yingshu[5];Qu, Xuanhui[1,2];Yang, Ralph T.[6];Li, Ziyi[5]

第一作者：Wang, Qianyu

通讯作者：Wu, HY[1];Li, ZY[2]

机构：[1]Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China;[2]Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing 100083, Peoples R China;[3]Liaoning Acad Mat, Inst Mat Intelligent Technol, Shenyang, Peoples R China;[4]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[5]Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China;[6]Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA

第一机构：Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China

通讯机构：[1]corresponding author), Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China;[2]corresponding author), Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China.

年份：2024

卷号：335

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20240215363454);Scopus(收录号：2-s2.0-85181831004);WOS:【SCI-EXPANDED(收录号:WOS:001153543300001)】；

基金：This work was supported by the National Natural Science Foundation of China (52104359 and 52370107) , the Beijing Natural Science Foun-dation (No. L233015) , and the Fundamental Research Funds for the Central Universities (FRF-EYIT-23-02 and FRF-IDRY-GD21-002) .

语种：英文

外文关键词：Naphthalene capture; Carbon sorbents; Solution combustion synthesis; Adsorption; Mesopore

摘要：Sorptive capture and recycling of gaseous naphthalene from industrial emissions are of both environmental significance and economic benefit. Constructing carbonaceous sorbents with matchable pore size and adequate active sites is significant towards the trade-off between adsorption and desorption for naphthalene. In this study, we developed a series of porous carbonaceous sorbents (ECSCs) using facile, inexpensive, and effective solution combustion synthesis (SCS) with subsequent calcination and pickling. The MgO@C precursors were fabricated via a fast and self-exothermic combustion reaction, and after calcination and MgO removal by pickling, the tailored pore structure was created. The morphology, porous structure, and surface chemical properties of ECSCs are precisely controlled by adjusting the type and content of fuel in combustion. For the optimized ECSC-G14 prepared on fuel-balanced condition, its layer-by-layer network facilitates adsorption mass transfer, and its high specific surface area (1987 m2 center dot g- 1) and abundant 3-6 nm mesoporosity promotes the accessibility of active sites. Consequently, an unprecedented high naphthalene uptake (3.075 mmol center dot g- 1 at 398 K) and fast kinetics (-1.43 x 10-2 s-1 at 2.82 x 10-3 mol center dot m- 3 feed concentration) were achieved. Combined characterization and molecular calculation revealed the synergistic contribution of O and N to reversible adsorption with superb regenerability (Ea of 42.71 kJ center dot mol- 1) and cyclic properties. This study provides an effective strategy and theoretical support to customize the properties of porous carbons, overcoming the adsorption-desorption dilemma for gas purification.