Article
Chemistry, Physical
Lun Zhou, Meng-Qi Zhong, Teng Wang, Jing-Xin Liu, Meng Mei, Si Chen, Jin-Ping Li
Summary: This study explores the catalytic effects of heavy metals on the pyrolysis of waste polyester textiles (WPTs) and the adsorption behaviors of the pyrolysis products for Cr(VI). The findings indicate that metal ions catalyze the pyrolysis process by reducing the temperature of WPTs decomposition. The activated carbons derived from WPTs exhibit a large specific surface area and acidic functional groups on their surface, which contribute to the adsorption of Cr(VI). The adsorption capacity varies among different activated carbons, and the adsorption mechanism involves pore filling, electrostatic effect, reduction reaction, and complexation.
Article
Environmental Sciences
Shaoqin Chen, Siyuan Fang, Aniqa Ibnat Lim, Jiming Bao, Yun Hang Hu
Summary: Converting waste plastic into valuable carbon materials as supercapacitor electrodes is a sustainable solution for plastic-related environmental issues. In this study, MgO-templated pyrolysis with chemical activation was used to convert waste PET plastic bottles into 3D meso/macroporous carbon with large surface area. The resulting carbon material exhibited high capacitance (191.4 F/g) and excellent rate capability (86.3% retention from 0.5 to 10 A/g). This work provides a facile method to synthesize 3D meso/macroporous carbon materials and contributes to mitigating plastic pollution.
Article
Chemistry, Multidisciplinary
Anis Atikah Ahmad, Mohd Azmier Ahmad, Nasehir Khan E. M. Yahaya, Jamilah Karim
Summary: This study focused on utilizing gasified Hevea brasiliensis root based activated carbon for the adsorption of malachite green dye. The characteristics responsible for adsorption were analyzed, revealing a multilayer adsorption process. The thermodynamic data showed the adsorption process to be spontaneous and endothermic, making GHBRAC economically feasible for commercialization.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Pingqiang Gao, Yan Zhang, Jinze Du, Hong Sui, Lin He
Summary: Porous carbons (PCs) were prepared using the heavy fraction of phenolic distillation residue as raw materials, and synthesized through a carbonize-activated one-step method with different templates. PCs prepared with Al2O3 and MgO templates demonstrated higher specific surface area and abundant pores, showing promising potential for the adsorption of VOCs and wastewater treatment.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Environmental Sciences
Sousan Hadi, Ensiyeh Taheri, Mohammad Mehdi Amin, Ali Fatehizadeh, Eder C. Lima
Summary: The study focused on the fabrication of activated carbon from pomegranate husk through dual consecutive activation processes, and its adsorption capacity for 4-chlorophenol. Results showed that PHAC exhibited high efficiency in removing 4CP, with optimal conditions achieved at specific compound concentrations and PHAC dosages.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
De-Cai Wang, Min-Da Xu, Zhen Jin, Yi-Fan Xiao, Yang Chao, Jie Li, Shao-Hua Chen, Yi Ding
Summary: A porous MgO nanosheet-modified activated carbon fiber felt (MgO@ACFF) was prepared and characterized for fluoride removal. The MgO@ACFF showed fast adsorption rate with more than 90% of fluoride ions being adsorbed within 100 min, and the adsorption kinetics followed a pseudo-second-order model. The Freundlich model fitted well for the adsorption isotherm of MgO@ACFF. The MgO@ACFF exhibited efficient fluoride removal from water in a wide pH range of 2-10 and a fluoride adsorption capacity larger than 212.2 mg/g at neutral. Co-existing anions had an effect on the fluoride removal efficiency of MgO@ACFF. The mechanism of fluoride adsorption by MgO@ACFF was revealed to be a hydroxyl and carbonate co-exchange mechanism through FTIR and XPS analysis. The column test showed that MgO@ACFF had the potential to be used as a fluoride adsorbent.
Article
Materials Science, Textiles
Xun Qiu, Yuanyuan Liu, Xiaoqiang Zhang, Dongzhi Liu, Ran Wang, Chong Wang, Jun Liu, Wei Liu, Yan Gong
Summary: Near-Infrared (NIR) spectroscopic analysis is a rapid and non-invasive method for waste textile recycling, providing qualitative and quantitative results. Orthogonalization of External Parameters (EPO) reduces water interference in NIR signals, improving accuracy and reliability in modeling.
JOURNAL OF INDUSTRIAL TEXTILES
(2023)
Article
Thermodynamics
Hongmei Peng, Pingli Li, Qi Yang
Summary: Large amounts of textile wastes are discarded annually, causing pollution and resource waste. A pyrolysis treatment has been investigated to recycle polyester and viscose fibers, obtaining valuable chemicals. The addition of a co-feed influences the product distribution, and PET decreases the relative content of oxygen-containing products. The presence of ZSM-5 reduces the generation of polycyclic aromatic hydrocarbons and increases the production of monocyclic aromatic hydrocarbons, improving selectivity.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Environmental Sciences
Muniandy Gayathiri, Thiruchelvi Pulingam, K. T. Lee, Kumar Sudesh
Summary: The use of activated carbon is increasing in various industrial applications, and its production from biomass waste requires further research on key factors and mechanisms. Optimizing key parameters and understanding the characteristics and mechanisms of activated carbon are important for its effective production and application.
Article
Environmental Sciences
Manisha Kumari, Ganga Ram Chaudhary, Savita Chaudhary, Ahmad Umar
Summary: In this study, solid waste plastic was converted into activated carbon fibres through carbonization and chemical activation. The produced activated carbon materials were characterized in terms of morphological structure, composition, thermal stability, and pore structure. The study found that the activation process significantly increased the specific surface area of the carbon materials, making them effective in removing thymol blue dye through adsorption. The study also provided insights into the adsorption isotherm and kinetic measurements of dye removal, as well as the regeneration and reusability of the activated carbon.
Article
Water Resources
Ibrahim Metin Hasdemir, Emre Yilmazoglu, Senem Gungor, Belma Hasdemir
Summary: In this study, activated carbon was prepared using hazelnut shells, orange peel, and melon seeds as raw materials. The adsorption efficiencies of the produced activated carbons were evaluated and compared with a commercial activated carbon. The results showed that the activated carbons derived from hazelnut shells and orange peel exhibited higher adsorption efficiencies.
APPLIED WATER SCIENCE
(2022)
Review
Environmental Sciences
Md Saif Hasan, Aneek Krishna Karmakar
Summary: Spent automobile batteries are a significant source of harmful heavy metals for the environment, and activated carbons have been proven effective in treating these metals. This review provides a comprehensive overview of the application of activated carbons in adsorbing heavy metals from spent car batteries in aquatic systems, discussing their preparation, adsorption mechanisms, and future research recommendations.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Fei Zhu, Zhenqi Wang, Jingchun Huang, Wei Hu, Di Xie, Yu Qiao
Summary: This study investigated the effect of chemical components (cellulose, xylan, pectin, and lignin) on the physicochemical properties and adsorption performance of activated carbon derived from pomelo peel. The results showed that lignin-added activated carbon had the highest adsorption capacity, followed by cellulose-added and xylan-added activated carbon. These findings provide insights into the correlations between the feedstock components and the ammonia adsorption styles of activated carbon, which can guide the selection of appropriate materials for efficient ammonia removal.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Biotechnology & Applied Microbiology
Norshila Abu Bakar, Norzila Othman, Zalilah Murni Yunus, Wahid Ali Hamood Altowayti, Muhammad Tahir, Nurina Fitriani, Siti Nor Aishah Mohd-Salleh
Summary: Textile industry effluents containing high concentrations of heavy metals are harmful to humans, plants, and animals. Adsorption technology, particularly using activated carbon from agricultural waste such as banana peel, is an effective and eco-friendly method for heavy metal removal in textile wastewater treatment. Different heavy metals show varying affinity towards adsorbents, with Ni2+ and Cd2+ having lower affinity, requiring adsorbents with high porosity and surface area for their removal.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Environmental
Ana Ligero, Monica Calero, Antonio Perez, Rafael R. Solis, Mario J. Munoz-Batista, M. Angeles Martin-Lara
Summary: Chemical recycling of plastic waste through pyrolysis is a potential approach, but little attention has been given to the reuse of the resulting char residue. This study focuses on the preparation of activated carbons from char residues obtained from the pyrolysis of post-consumer plastic waste, which have been applied to CO2 adsorption.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Chemistry, Physical
Zhihang Yuan, Zhihua Xu, Daofang Zhang, Weifang Chen, Tianqi Zhang, Yuanxing Huang, Lin Gu, Haixuan Deng, Danqi Tian
APPLIED SURFACE SCIENCE
(2018)
Article
Chemistry, Physical
Zhihang Yuan, Zhihua Xu, Daofang Zhang, Weifang Chen, Yuanxing Huang, Tianqi Zhang, Danqi Tian, Haixuan Deng, Yuwei Zhou, Zhenhua Sun
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2018)
Article
Green & Sustainable Science & Technology
Zhihua Xu, Zhihang Yuan, Daofang Zhang, Weifang Chen, Yuanxing Huang, Tianqi Zhang, Danqi Tian, Haixuan Deng, Yuwei Zhou, Zhenhua Sun
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Chemistry, Physical
Zhihua Xu, Zhihang Yuan, Daofang Zhang, Yuanxing Huang, Weifang Chen, Zhenhua Sun, Yuwei Zhou
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Green & Sustainable Science & Technology
Houmin Yin, Jing Hu, Zhihang Yuan, Nanwen Zhu, Haiping Yuan, Yanwen Shen, Ziyang Lou
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Green & Sustainable Science & Technology
Zhihang Yuan, Yaoya Shen, Haiping Yuan, Aimin Sui, Nanwen Zhu, Ziyang Lou
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Thermodynamics
Wei Li, Zhihang Yuan, Xiaoliang Chen, Hui Wang, Luochun Wang, Ziyang Lou
Summary: The study developed a green-RDF using waste from different sources directly. By optimizing the waste composition, a green-RDF that meets market demands was prepared, with good mechanical and combustion performance.
Article
Chemistry, Multidisciplinary
Zhihua Xu, Tianqi Zhang, Zhihang Yuan, Daofang Zhang, Zhenhua Sun, YuanXing Huang, Weifang Chen, Danqi Tian, Haixuan Deng, Yuwei Zhou