1
|
Lan S, Xia X, Liu Z, Yang Y, Qian Q, Luo Y, Chen Q, Cao C, Xiao L. 3D printed cylindrical capsules as a Chlorella pyrenoidosa immobilization device for removal of lead ions contamination. Front Chem 2022; 10:987619. [PMID: 36531318 PMCID: PMC9748691 DOI: 10.3389/fchem.2022.987619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 11/16/2022] [Indexed: 12/01/2023] Open
Abstract
Immobilization is considered as a promising strategy toward the practical applications of powdered adsorbent. Herein, three dimensional (3D) printing cylindrical capsules with cross-linked PVA hydrogels membrane in encapsulate Chlorella pyrenoidosa (Cp) were utilized for removal of lead ions. The chemical compositions, hydrogels performance and morphologies of the membranes were determined by Fourier transformed infrared spectroscopy (FTIR), cross-linking degree, swelling degree, membrane flux and scanning electron microscopy (SEM). It is found that PVA cross-linking structure is successfully synthesized on the surface of capsule body and cap due to the presence of PVA in the filament. The lead ions adsorption capacity related to initial concentration of 50 mg/L in 48 h is reached 75.61%, revealing a good removal ability. The self-floating 3D printed capsules device also shows an excellent recovering property. After 7 runs of adsorption experiment, the lead ions adsorption ratio remains 78.56%, which will bring a broad prospect in wastewater treatment, chemical slow release along with sample preparation and separation.
Collapse
Affiliation(s)
- Shuzhen Lan
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, China
| | - Xinshu Xia
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Zhen Liu
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, China
| | - Yujin Yang
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Qingrong Qian
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Yongjin Luo
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Qinghua Chen
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Changlin Cao
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Liren Xiao
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, China
| |
Collapse
|
2
|
Zeolite-assisted radiolysis of aromatic chlorides mitigating influence of coexisting ions in water matrix. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2021.109831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
3
|
Ichiura H, Seike T, Kozu A. Acetaldehyde gas removal by a nylon film-TiO 2 composite sheet prepared on a paper surface using interfacial polymerization and electrostatic interactions. CHEMOSPHERE 2020; 256:127143. [PMID: 32473469 DOI: 10.1016/j.chemosphere.2020.127143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
In this study, preparation of a nylon film-TiO2 composite sheet with both physical durability under UV irradiation and TiO2 photocatalysis functionality was investigated. First, a nylon film was directly prepared on paper by interfacial polymerization using ethylenediamine and terephthaloyl chloride in a cyclohexane-chloroform mixture (3:1, v/v). Next, the nylon-coated paper was treated with tetraethyl orthosilicate and 3-aminopropyltrimethoxysilane to prepare polysiloxane on its surface. This was followed by fixation of TiO2 powder via electrostatic interactions with the polysiloxane. Although nylon films on paper usually decompose under TiO2 photocatalysis, the nylon film-TiO2 composite sheets prepared using 0.5%-1.0% (w/v) TiO2 did not decompose under photocatalysis. The residual rate of strength of the sheet remained at almost 100% after 240 h, which could be attributed to protection of the sheet by the polysiloxane layer. The nylon film was fibrous and could effectively adsorb acetaldehyde gas. All of the nylon film-TiO2 composite sheets prepared using 0.5%-5.0% TiO2 photocatalytically removed acetaldehyde under UV irradiation and no acetaldehyde gas was detected after 240-300 min. These results show the nylon film-TiO2 composite sheet can effectively remove acetaldehyde gas by photocatalysis and adsorption and could be applied to removal of volatile organic compounds in indoor air.
Collapse
Affiliation(s)
- Hideaki Ichiura
- Faculty of Agriculture, Kochi University, 200 Monobe-Otsu, Nankoku, Kochi, 783-8502, Japan.
| | - Takenori Seike
- Faculty of Agriculture, Kochi University, 200 Monobe-Otsu, Nankoku, Kochi, 783-8502, Japan
| | - Ayako Kozu
- Faculty of Agriculture, Kochi University, 200 Monobe-Otsu, Nankoku, Kochi, 783-8502, Japan
| |
Collapse
|
4
|
Elghniji K, Elaloui E, Moussaoui Y. Coating of anatase titania on clinoptilolite by metal organic chemical vapor deposition method: enhanced mesoporosity and photocatalytic activity. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0350-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|