|
1
|
Yang L, Zhang Y, Hu X, Shiu BC, Lou CW, Lin JH, Li TT. Photodynamic Rechargeable Nanofibrous Membranes with High-Efficient Antibacterial/Antiviral Properties for Medical Protection. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2022.12.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
|
2
|
Lei M, Yang L, Shen Y, Yang L, Sun J. Efficient Adsorption of Anionic Dyes by Ammoniated Waste Polyacrylonitrile Fiber: Mechanism and Practicability. ACS OMEGA 2021; 6:19506-19516. [PMID: 34368537 PMCID: PMC8340109 DOI: 10.1021/acsomega.1c01780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/18/2021] [Indexed: 05/15/2023]
Abstract
Adsorption is one of the commonly used methods in wastewater treatment, but it has the problem of high cost and a complicated production process. In this paper, a low-cost and efficient decolorizing adsorbent was successfully prepared based on waste polyacrylonitrile fiber (PANF). The waste PANF was ammoniated by propylene diamine derivates (PANAMF), and benzylamine (PANABMF) and quaternary ammonium ions (PANQMF) were introduced for PANAMF to regulate hydrophilicity and hydrophobicity. With acidic red 249 as the model anionic dye, influences of the adsorption center structure, the degree of modification, the concentration of acid, the dye structure, and the auxiliary agent in the solution on the dye adsorption performance were studied. Isothermal models, kinetic models, reusability, and continuous application ability of the fiber adsorbent were discussed. PANAMF, PANABMF, and PANAQF exhibit excellent adsorption performance compared to the common adsorbent. After protonation, the saturation adsorption value can reach 2051.3 mg/g for PANAMF. PANAMF also exhibited excellent reusability, and the adsorption capacity after being reused eight times still can keep 72.7% of that for the first time. The adsorption of the anionic dye for PANAMF is a chemisorption process, and the rate-determining step is changed from the diffuse step to the adsorption on the surface with the adsorption time. PANAMF can also be used in the continuous flow process, and the absorption amount is similar to that in the batch adsorption, which shows excellent commercial application potential.
Collapse
Affiliation(s)
- Manjun Lei
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Lihui Yang
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Yifeng Shen
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Lei Yang
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Jie Sun
- Key
Laboratory of Advance Textile Materials and Manufacturing Technology,
Ministry of Education, College of Textile Science and Engineering
(International Institute of Silk), Zhejiang
Sci-Tech University, Hangzhou 310018, Zhejiang, China
- Engineering
Research Center for Eco-Dyeing and Finishing of Textiles, Ministry
of Education, College of Textile Science and Engineering (International
Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| |
Collapse
|
|
3
|
Zhang C, Xiao S, Shen Z, Li R, Liu J, Guo S, Xu L. Effects of oxidation treatment by KClO 3/H 2SO 4 systems on the chemical, crystal and microscopic structures of polyacrylonitrile fibers. NEW J CHEM 2020. [DOI: 10.1039/d0nj00442a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Oxidation treatment of PAN fibers (PFs) in a KClO3/H2SO4 system as a new pretreatment method for carbon fiber oxidation stabilization.
Collapse
Affiliation(s)
- Cheng Zhang
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
| | - Shijie Xiao
- SINOPEC Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
| | - Zhigang Shen
- SINOPEC Shanghai Research Institute of Petrochemical Technology
- Shanghai 201208
- China
| | - Runping Li
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
- Key Laboratory of Unconventional Metallurgy, Ministry of Education
| | - Jianhua Liu
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
| | - Shenghui Guo
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
| | - Lei Xu
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
- Key Laboratory of Unconventional Metallurgy, Ministry of Education
| |
Collapse
|