Article
Chemistry, Inorganic & Nuclear
Nildeniz Adman, Sabriye Yusan
Summary: In this study, graphene oxide and aginate were used to synthesize nanobiocomposites for the adsorption of Th (IV) ions from aqueous solutions. The materials were characterized using various techniques, and the adsorption efficiency was investigated under different conditions. The results showed significant effects of concentration, time, and temperature on the adsorption process.
Article
Chemistry, Physical
Yun Wang, Xinchen Chen, Xuewen Hu, Peng Wu, Tu Lan, Yang Li, Hong Tu, Yan Liu, Dingzhong Yuan, Zhenyu Wu, Zhirong Liu, J. W. Chew
Summary: The ultralight three-dimensional porous network phosphonic acid functionalized polymer/graphene oxide nanoribbons aerogel (PAFP/GONRs-A) showed excellent adsorption capacity for thorium, with a maximum capacity of 457.9 mg g(-1) at a pH of 3.0 and a maximum thorium selectivity of 87.1% at a pH of 2.0 under optimal experimental conditions. Additionally, the adsorption process of Th(IV) on PAFP/GONRs-A was found to be pH-dependent, spontaneous, and endothermic.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Yangyang Gao, Yongbo Qin, Meng Zhang, Lihong Xu, Zhencong Yang, Zhanglian Xu, Yin Wang, Meng Men
Summary: The presence of oxygen-containing functional groups on carbon materials enhances the adsorption capacity of radioactive thorium ions (Th(IV)), with the adsorption capacity dependent not only on the oxygen content but also on the type of oxygen-containing functional groups. Coordination of Th(IV) with oxygen functional groups induces the aggregation and sedimentation of graphene oxide nanoflakes (GONFs), facilitating the separation of adsorbents. This study deepens our understanding of the role of oxygen-containing groups in Th(IV) adsorption and provides a new strategy for the design and synthesis of high-performance carbon-based adsorbents.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Applied
Bing Chen, Yanhui Li, Meixiu Li, Mingfei Cui, Wenshuo Xu, Liubo Li, Yaohui Sun, Mingzhen Wang, Yang Zhang, Kewei Chen
Summary: By improving the synthesis process, a MOF-525/GO composite with high surface area and good adsorption properties was obtained; the adsorption rate of TC by MOF-525/GO is rapid and stable, mainly driven by pi-pi stacking and hydrogen bonding, as well as complexation between Zr and TC.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Polymer Science
Naveen Kumar, Bijender Kumar, Himanshu Gupta, Anuj Kumar
Summary: In this study, a graphene oxide/cellulose composite (GO-cellulose) was prepared and found to have a higher specific surface area compared to cellulose. UV-Visible spectroscopy demonstrated that the GO-cellulose composite efficiently removed phenol from aqueous solutions. The adsorption capacity of the composite was optimized at pH 7 with a dose of 0.125 g/30 L in approximately 40 minutes, and the adsorption behavior followed the pseudo-second-order kinetic model and the Langmuir isotherms.
Article
Engineering, Environmental
Yufan Zhang, Lei Wu, Heli Deng, Na Qiao, Desuo Zhang, Hong Lin, Yuyue Chen
Summary: Exploiting adsorbents with high adsorption activity, good durability and low cost remains the core focus of water pollution treatment. In this study, a composite aerogel was synthesized using SA, GO, and β-CD, showing excellent adsorption properties for metal ions. The results suggest that the synthesis of SA/GO-β-CD-4 composite aerogels could pave a new way for versatile adsorbents.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Yingxin Chen, Qian Chen, Richard M. Kasomo, Yanfeng Jin, Pujia Yang, Huifang Zheng, Xiaoqing Weng, Hongqiang Li, Shaoxian Song
Summary: Adsorption methods are highly regarded for their selectivity, simplicity, and wide applicability in removing fluoride from water bodies. The development of adsorbents with improved performance is crucial. Graphene oxide is modified by doping polyhydroxy complexes onto its surface structure and controlling potential charge to enhance its affinity towards fluoride. Various detection techniques were employed to analyze the textural properties of the modified graphene oxide. Additionally, the effects of different parameters on the adsorption behavior were systematically investigated.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Applied
Muge Sari Yilmaz
Summary: In this study, graphene oxide/hollow mesoporous silica and layered double hydroxide/hollow mesoporous silica composites were synthesized and compared for their adsorption behavior towards different dyes. The graphene oxide/hollow mesoporous silica showed better selectivity and stability in adsorption of methylene blue compared to layered double hydroxide/hollow mesoporous silica.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Environmental
Rini K. Vishwakarma, Pavan K. Narayanam, Pabitra Ghosh
Summary: The preparation and evaluation of GO-CE composites for strontium separation were conducted, highlighting the superiority of GO-18C6 composites. The interaction mechanism between 18C6 molecules and GO layers was investigated, and optimal adsorption conditions were determined. The composite membranes exhibited high adsorption capacity for Sr(II) and showed potential in the removal of alkali/alkaline earth metal ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Jun Shang, Yanni Guo, Deliang He, Wei Qu, Yining Tang, Lei Zhou, Rilong Zhu
Summary: The novel graphene oxide-dicationic ionic liquid composite (GO-DIL) showed good adsorption performance for Cr(VI), with a high maximum adsorption capacity and maintained high adsorption capacity even after multiple cycles. The adsorption process fit well with pseudo-first-order kinetic model and Langmuir model, indicating that adsorption is a spontaneous endothermic process.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Amina Bibi, Shazia Bibi, Mohammed Abu-Dieyeh, Mohammad A. Al-Ghouti
Summary: In this study, the removal of phenol from synthetic and real wastewater using a new polyacrylic acid-modified graphene oxide (GO-PAA) composite material was investigated. Results showed that the adsorption capacity of GO-PAA was double compared to un-modified GO, and under the optimum conditions (pH 2 and 25°C), GO-PAA was able to remove approximately 75% of phenol from synthetic wastewater. These findings suggest that adsorption using GO-PAA could be an effective and simple method for remediating pollution, especially in acidic conditions.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Engineering, Environmental
Jiangbo Huo, Guoce Yu, Jianlong Wang
Summary: By preparing a composite of polyvinyl alcohol, graphene oxide, and MnO2, the adsorbent showed enhanced adsorption capacity for Co2+ and Sr2+. The composite exhibited high adsorption capacity under different pH conditions and different responses to interfering substances in competitive adsorption tests.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Junya Wang, Shimeng Cui, Zhiheng Li, Shikun Wen, Ping Ning, Shijian Lu, Peng Lu, Liang Huang, Qiang Wang
Summary: The study utilized Mg/DOBDC MOF as a precursor to fabricate a Mg/DOBDC MOF and GO composite, with a comprehensive investigation of its CO2 capture performance. The obtained Mg/DOBDC MOF@GO composite showed significantly improved CO2 uptake compared to the parent MOF. This research not only provides insights into synthesis and utilization of composites for CO2 capture, but also enhances understanding of adsorption kinetics and mechanisms for future guidance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Songyuan Xiong, Zijun Wu, Zhili Li
Summary: This study developed BC-GO composite monoliths with abundant microchannels and nanopores, showing high adsorption capacity and exceptional oil absorption capabilities. They also exhibited good stability and reusability for pollutants removal, potentially paving the way for future applications in water purification.
Article
Polymer Science
Nuankanya Sathirapongsasuti, Anuchan Panaksri, Sani Boonyagul, Somchai Chutipongtanate, Nuttapol Tanadchangsaeng
Summary: This study prepared electrospun polybutylene succinate (PBS) membrane and found it to have higher protein binding capacity compared to commercial membrane filtration, demonstrating improved efficiency in protein capture.
