Decolorization of dark-colored waste cotton fabric using redox decoloring agents?
RSC Advances Pub Date: 2022-06-15 DOI: 10.1039/D2RA02071H
Abstract
A huge quantity of dark-colored waste cotton fabrics with a high content of dye powder is dumped in landfills and incinerated, which is a waste of resources and pollutes the land and atmosphere. Also, it is meaningful to effectively strip the color from these dark-colored waste cotton fabrics with minimal damage to the strength of the textiles. In this study, a dark-colored waste cotton fabric dyed with reactive dyes was subjected to chemical treatment with redox decoloring agents. The effects of various treatments on the coloration and mechanical properties of the fabric were compared. This work developed an effective Na2S2O4–H2O2 system for decolorizing waste cotton fabric, with numerous advantages over conventional physicochemical approaches including achieving a CIE whiteness index of 74.1, tensile strength loss of 24.0%, weight loss of 1.2%, decoloration rate of 97.8%, and a degree of polymerization of 735.3. Furthermore, a mechanism was proposed to explain the two-step synergistic decolorization process.
Recommended Literature
- [1] Evolution in surface coverage of CH3NH3PbI3?XClXvia heat assisted solvent vapour treatment and their effects on photovoltaic performance of devices Dhirendra K. Chaudhary,Pramendra Kumar,Lokendra KumarRSC Adv., 2016,6, 94731-94738 10.1039/C6RA18729C
- [2] Excellent peroxidase mimicking property of CuO/Pt nanocomposites and their application as an ascorbic acid sensor? Xinhuan Wang,Shuangfei Cai,Cui QiAnalyst, 2017,142, 2500-2506 10.1039/C7AN00589J
- [3] Evolution study of photo-synthesized gold nanoparticles by spectral deconvolution model: a quantitative approach Chung-Sung Yang,Mong-Shian Shih,Fang-Yi ChangNew J. Chem., 2006,30, 729-735 10.1039/B516465F
- [4] Examination of the hydrogen-bonding networks in small water clusters (n = 2–5, 13, 17) using absolutely localized molecular orbital energy decomposition analysis? Erika A. Cobar,Paul R. Horn,Robert G. Bergman,Martin Head-GordonPhys. Chem. Chem. Phys., 2012,14, 15328-15339 10.1039/C2CP42522J
- [5] Dissociation of large gaseous serine clusters produces abundant protonated serine octamer Jacob S. Jordan,Evan R. WilliamsAnalyst, 2021,146, 2617-2625 10.1039/D1AN00273B
- [6] Embedding heteroatoms: an effective approach to create porphyrin-based functional materials Norihito Fukui,Keisuke Fujimoto,Hideki Yorimitsu,Atsuhiro OsukaDalton Trans., 2017,46, 13322-13341 10.1039/C7DT02815F
- [7] Esterase-responsive polymeric prodrug-based tumor targeting nanoparticles for improved anti-tumor performance against colon cancer? Gang Pan,Yi-jie Bao,Jie Xu,Tao Liu,Cheng Liu,Yan-yan Qiu,Xiao-jing Shi,Hui Yu,Ting-ting Jia,Xia Yuan,Ze-ting Yuan,Yi-jun CaoRSC Adv., 2016,6, 42109-42119 10.1039/C6RA05236C
- [8] Emerging investigator series: heterogeneous reactions of sulfur dioxide on mineral dust nanoparticles: from single component to mixed components? Tao Wang,Yangyang Liu,Yue Deng,Hongbo Fu,Jianmin ChenEnviron. Sci.: Nano, 2018,5, 1821-1833 10.1039/C8EN00376A
- [9] Emergence of cationic polyamine dendrimersomes: design, stimuli sensitivity and potential biomedical applications Partha Laskar,Christine DufèsNanoscale Adv., 2021,3, 6007-6026 10.1039/D1NA00536G
- [10] Examination of ammonia–poly(pyrrole) interactions by piezoelectric and conductivity measurements Analyst, 1991,116, 1125-1130 10.1039/AN9911601125
Journal Name：RSC Advances
research_products
-
CAS no.: 89640-58-4
![N-(3-cyanothiolan-3-yl)-2-[(2,2,2-trifluoroethyl)sulfanyl]pyridine-4-carboxamide](https://ossimg.kuujia.com/scimg/1444500/1444113-98-7x500.png)
![1,2,3,4,5,6-Hexahydro-[2,3]bipyridinyl-6-ol](https://ossimg.kuujia.com/scimg/1271000/1270529-38-8x500.png)
![2,2-Difluoro-3-[methyl(2-methylbutyl)amino]propanoic acid](https://ossimg.kuujia.com/scimg/2138500/2138166-62-6x500.png)
![2-(1H-indol-3-yl)-N-{[6-(thiophen-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]methyl}acetamide](https://ossimg.kuujia.com/scimg/2034500/2034271-14-0x500.png)