1
|
Dai Y, Lv R, Fan J, Peng H, Zhang Z, Cao X, Liu Y. Highly ordered macroporous silica dioxide framework embedded with supramolecular as robust recognition agent for removal of cesium. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:121467. [PMID: 32058224 DOI: 10.1016/j.jhazmat.2019.121467] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/09/2019] [Accepted: 10/12/2019] [Indexed: 06/10/2023]
Abstract
Owning to highly mechanical strength and non-interference effectivity, silica dioxide is often explored as a stable supporter commonly with mesopore. It is known that a macroporous framework has larger mass transfer channel, possibly beneficial to adsorption process. Herein highly ordered macroporous silica dioxide framework (homogeneous pore size of 194.20 nm) was synthesized and embedded with supramolecular (CC/OMS). Cs cation adsorption onto CC/OMS was explored under different pH (presence or absence of humic acid), initial cesium concentration, shaking time, competing ions. The robust cesium uptake capacity demonstrated by a theory adsorption amount of 150.01 mg/g highlighted unique CC/OMS properties combining large mass transfer channel and superior complex capacity of supramolecular. The adsorption was well fit with Langmuir and pseudo-second-order model. Sodium and potassium at a lower concentration showed little influence on cesium adsorption. The results demonstrated that CC/OMS was an alternative material for cesium capture from acidic aqueous solution.
Collapse
Affiliation(s)
- Ying Dai
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, Jiangxi, China; School of Chemistry, Biological and Materials Sciences, East China University of Technology, Nanchang 330013, Jiangxi, China
| | - Riwen Lv
- School of Chemistry, Biological and Materials Sciences, East China University of Technology, Nanchang 330013, Jiangxi, China
| | - Jiali Fan
- School of Chemistry, Biological and Materials Sciences, East China University of Technology, Nanchang 330013, Jiangxi, China
| | - Hong Peng
- School of Chemistry, Biological and Materials Sciences, East China University of Technology, Nanchang 330013, Jiangxi, China
| | - Zhibin Zhang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, Jiangxi, China; School of Chemistry, Biological and Materials Sciences, East China University of Technology, Nanchang 330013, Jiangxi, China
| | - Xiaohong Cao
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, Jiangxi, China; School of Chemistry, Biological and Materials Sciences, East China University of Technology, Nanchang 330013, Jiangxi, China
| | - Yunhai Liu
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, Jiangxi, China; School of Chemistry, Biological and Materials Sciences, East China University of Technology, Nanchang 330013, Jiangxi, China.
| |
Collapse
|
2
|
Tumanov VV, Storozhenko PA, Stolyarova IV. Composition of Hydrosolvates during the Extraction of Nitric Acid in the HNO3–H2O–EHEHPA System. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420060291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
3
|
Cesium separation from radioactive waste by extraction and adsorption based on crown ethers and calixarenes. NUCLEAR ENGINEERING AND TECHNOLOGY 2020. [DOI: 10.1016/j.net.2019.08.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
4
|
Dai Y, Lv R, Fan J, Zhang X, Tao Q. Adsorption of cesium using supermolecular impregnated XAD-7 composite: isotherms, kinetics and thermodynamics. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06625-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|