Article
Engineering, Environmental
Myong Nam Pak, Jiaojiao Yang, Qimeng Li, Guoxiang Wang, Fei He
Summary: A novel magnetic anion exchange microbead (NAEM) with excellent reuse and anti-fouling performance was developed for the removal of reactive dye sunset yellow (FCF). NAEM exhibited a significantly higher initial adsorption rate and equilibrium adsorption capacity for FCF compared to commercial anion-exchange resins. The multilayered adsorption of FCF on different resins suggests the contribution of physical adsorption. NAEM also demonstrated enhanced anti-interference capacity and prolonged reusability compared to other resins.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Xin Wei, Dong Chen, Li Wang, Yuhong Ma, Wantai Yang
Summary: The study involved the design and synthesis of a modified polyurethane foam material that serves as an effective dye adsorbent with significant pH-sensitive properties. Experimental results demonstrated the material's good regenerability and high removal efficiency in dye treatment.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Mai Lien Tran, Thi Tuong Van Tran, Ruey-Shin Juang, Chi Hieu Nguyen
Summary: In this study, chitosan (CS) and graphene oxide (GO) were combined to synthesize CS/GO composites with different GO contents. The combination of CS and GO not only improved the surface area by reducing agglomeration of GO sheets, but also significantly enhanced the adsorption capacity of cationic dye on CS. The Langmuir adsorption capacity of methylene blue (MB) reached 259.5 mg/g at pH 8 and 30 degrees C for the CS/GO12 material. The composite showed good adsorption-regeneration performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Materials Science, Multidisciplinary
Maryam Hasanpour
Summary: The increasing industrial activities have led to the influx of pollutants into water resources, calling for their removal due to their toxicity. A microcrystalline cellulose/graphene oxide aerogel was synthesized as an adsorbent and its efficiency in removing methylene blue dye from aqueous solutions was investigated. Various factors were optimized to determine the adsorption capacity, including the concentration of graphene oxide in the aerogel, pH of the solution, adsorbent dosage, initial concentration of dye, and contacting time. The results showed a maximum adsorption capacity of 645 mg g(-1), with the pseudo-second-order and Langmuir isotherm models providing the best fit for the adsorption process.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Reza Eivazzadeh-Keihan, Zeinab Pajoum, Hooman Aghamirza Moghim Aliabadi, Fatemeh Ganjali, Amir Kashtiaray, Milad Salimi Bani, Farnaz Lalebeigi, Elaheh Ziaei Ziabari, Ali Maleki, Majid M. Heravi, Mohammad Mahdavi
Summary: This study successfully prepared a biocompatible magnetic nanobiocomposite with high structural uniformity, thermal stability, biocompatibility, and stability in an aqueous solution. Various analysis methods were used to evaluate the characteristics of the composite material, and the results showed excellent performance in magnetic fluid hyperthermia process.
CARBOHYDRATE POLYMERS
(2023)
Article
Engineering, Chemical
Boyu Du, Yating Bai, Zheng Pan, Jingyu Xu, Qingyu Wang, Xing Wang, Gaojin Lv, Jinghui Zhou
Summary: This study successfully separated fractionated lignin (L2) with more hydroxyl and carboxyl groups from black liquor using a simple sequential acid precipitation method, and then prepared high-efficiency and low-cost fractionated lignin-based magnetic nanoparticles (L2-MNPs) adsorbent by introducing L2 onto the surface of magnetic Fe3O4 nanoparticles (MNPs). The experimental results showed that L2-MNPs had a high adsorption capacity for methylene blue (MB) dye in wastewater, making it an environmentally friendly, cost-effective, and recyclable adsorbent.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Zahid Sarwar, Martynas Tichonovas, Edvinas Krugly, Goda Masione, Vytautas Abromaitis, Dainius Martuzevicius
Summary: The study showed that hosting graphene oxide particles on polyether block amide fibers can effectively adsorb dyes from water. However, increasing the graphene oxide content may affect fiber diameter and dye adsorption efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Physical
Yafei Liu, Yiyu Shi, Yan Cui, Fen Zhao, Mindong Chen
Summary: In this study, a novel imidazolium-based ionic liquid-modified magnetic polymer was synthesized and used for the adsorption of acid dye FCF. The results showed that the magnetic polymer had excellent adsorption capacity in a wide pH range and good reusability.
Article
Chemistry, Multidisciplinary
Wenju Liu, Hongjuan Bai, Weiqiang Gao, Zihan Chen, Zhuangzhuang Liu, Zilong Chen, Junhang Chen
Summary: In this study, a renewable magnetic alginate composite containing graphene oxide (M-GO/Alg) was used to investigate the adsorption behavior of methylene blue (MB) and crystal violet (CV) in single and binary systems. The results showed that M-GO/Alg had high adsorption capacity for both dyes and exhibited no significant performance loss after multiple adsorption cycles. Additionally, M-GO/Alg could be easily separated under an external magnetic field, making it an eco-friendly and recyclable adsorbent for cationic dyes.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Ali Beryani, Carlo Bianco, Alessandro Casasso, Rajandrea Sethi, Tiziana Tosco, Navid B. Saleh
Summary: The study investigated the potential application of graphene oxide (GO) for soil washing, showing a high adsorption capacity for methylene blue (MB) in alkaline conditions under synthetic groundwater. The results suggest a very high recovery of injected particles can be expected in the field.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Hongyun Nie, Lijiao Chen, Jing Chen, Maiqian Nie, Zhenjun Diwu, Lei Wang, Ying Cui
Summary: In this study, cationic graphene oxide (C-GO) was prepared to adsorb and purify rhamnolipids (RLs) from fermentation broth. The prepared C-GO exhibited high adsorption capacity and rapid adsorption rate for RLs. Ethanol was able to recover the adsorbed RLs with high purity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Pazhanivel Devendran, Duraisamy Selvakumar, Govindarajan Ramadoss, Ramachandran Sivaramakrishnan, Thangavel Alagesan, Ramasamy Jayavel, Kannaiyan Pandian
Summary: The study found that rare earth metals doped cadmium sulfide grafted reduced graphene oxide nanocomposites have excellent performance in photocatalytic dye degradation, with cerium-cadmium sulfide-reduced graphene oxide nanocomposites showing the best photocatalytic performance under sunlight, achieving a degradation rate of 99.0%. The nanocatalyst efficiently accelerates the separation of photo excited charge carriers and retains high catalytic activity even after multiple cycles of use.
Article
Engineering, Environmental
Guobin Song, Yawei Shi, Haonan Wang, Anqi Li, Wanran Li, Ya Sun, Guanghui Ding
Summary: The excellent properties of micro-nano materials and structures have attracted extensive attention in wastewater treatment. In this study, magnetic multi-walled carbon nanotubes (MMWCNTs) were prepared and used for the sorptive removal of five typical cationic dyes from aqueous solutions. The effects of various factors on the adsorption process were investigated, and it was found that the kinetics processes could be well described by the pseudo-second-order kinetic model. The results showed that the MMWCNTs had high adsorption capacities and could be regenerated for reuse.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Jyoti Chaudhary, Sourbh Thakur, Gcina Mamba, Prateek, Raju Kumar Gupta, Vijay Kumar Thakur
Summary: Gelatin grafted environment-friendly hydrogel composite was used for the effective adsorption of methyl violet (MV) dye, showing excellent adsorption efficiency. The GE-g-MMA/Gph hydrogel composite exhibited significant advantages in adsorption efficiency, demonstrating environmentally friendly and cost-effective characteristics.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Caroline Maria Bezerra de Araujo, Albertina Goncalves Rios, Alexandre Filipe Porfirio Ferreira, Mauricio Alves da Motta Sobrinho, Alirio Egidio Rodrigues, Marcos Gomes Ghislandi
Summary: Nano-biocomposite hydrogel samples prepared with graphene oxide and agar have demonstrated effective removal of organic components in water, particularly for cationic dyes Nile Blue A and methylene blue. The hydrogel samples showed satisfactory adsorption capacities and regenerative potential for the cationic dyes, while exhibiting limited removal for the anionic dye Acid Orange 7.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
