Article
Metallurgy & Metallurgical Engineering
Qian Xiao, Xueyu Wang, Lianjun Song, Fengfeng Li, Qiuju Li, Lanlan He, Zhen Shen, Fangxiang Luo, Songdong Ding
Summary: A novel Et-TolDAPhen extraction resin was prepared by impregnating Amberlite XAD-7 resin with a phenanthroline-derived diamide extractant. This new extraction resin exhibited strong adsorption capacity, excellent selectivity, and good reusability for Pd2+ in highly acidic HNO3 solution.
Article
Chemistry, Physical
A. M. Thakre, S. D. Deosarkar, V. V. Hiwase, A. B. Kalambe
Summary: Commercial amberlite XAD-4 resin was modified using the azo spacer technique to obtain AXAD-N=N-HQ. The resin showed semiconducting behavior, and its properties were characterized and studied.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Article
Chemistry, Physical
Jinlong Fan, Li Duan, Yufeng Wang, Ping Huang
Summary: A novel polymer-based extraction resin was developed for the efficient mutual separation of trivalent actinides Am(III) and Cm(III). The resin exhibited excellent physicochemical properties and was capable of effectively separating the actinides in nitric acid solution using extraction chromatography. This strategy is convenient and efficient for the separation of minor actinides, and is expected to enhance the accuracy and sensitivity of mass spectrometry and alpha energy spectrum measurements for Am(III)/Cm(III) isotopes.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Polymer Science
A. I. L. Abd El Fatah, Soaad M. Elashry
Summary: Novel core-shell type polymeric supports with accessible phosphorus groups were synthesized for the synthesis of functional resins. The impregnated resin exhibited high sorption capacity for La (III) ions, with optimal conditions achieved at pH 0.5 and a contact time of 30 min. Sorption process followed pseudo-second-order and Langmuir models. The study demonstrated the potential application of the impregnated resin for removal and recovery of La ions.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Engineering, Chemical
Yong Xiang, Dongfang Dai, Wencai Bai, Li Xu, Guoji Liu
Summary: Current adsorbents for Au(III) recovery have limitations including high costs, low adsorption capacity, recycling difficulty, and limited applications. In this study, a complex adsorbent SA-TRF was developed, which consists of a sodium alginate aerogel as the carrier and TRF resin as the functional element. The SA-TRF exhibited a high adsorption capacity and performed better than other adsorbents, making it promising for industrial applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Sevgi Kocaoba
Summary: The adsorption efficiency of Pb(II) and Cd(II) from aqueous solutions using m-phenylenediamine-modified Amberlite XAD-4 resin was investigated. The impact of various factors such as pH, adsorbent amount, initial metal concentration, eluent type and volume, and flow rate on the retention of the metal ions was studied through column studies. The optimal conditions for quantitative adsorption were found to be pH 5, 10 mg/L concentration, 30 minutes stirring time, 0.2 g adsorbent amount, and 2.5 mL/min flow rate. The sorption data fit well with both the Langmuir and Freundlich equations, and the resin showed high metal adsorption capacity and satisfactory recovery of Pb(II) and Cd(II).
JOURNAL OF ANALYTICAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Sakshi Batra, Dipaloy Datta
Summary: In this study, Bisphenol-A (BP-A) was successfully removed from aqueous solution using Cyphos IL-101 impregnated Amberlite XAD-7 resin, with a removal rate of 97.56% under optimal conditions. The regenerability of the resin was demonstrated through the matching of adsorption and kinetic data.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Metallurgy & Metallurgical Engineering
Yong Xiang, Yun Liu, Mingjie Li, Wencai Bai, Guoji Liu, Li Xu
Summary: A novel RFT-SA adsorbent with high adsorption capacity and selectivity, as well as easy collectability, has been developed for efficient gold recovery.
Article
Engineering, Environmental
Chuchai Sronsri, Napong Panitantum, Wanpasuk Sittipol, Kongpop U-yen, Pongsathorn Kerdphol
Summary: The study confirmed the feasibility of using hydrometallurgy for metal extraction from electronic wastes. By adjusting extraction conditions and using specific resins, copper and gold were efficiently extracted, and gold recovery and resin reusability were successfully achieved.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Chemical
Yan Zhang, Bin Xu, Yunquan Zheng, Qian Li, Yongbin Yang, Xiaoliang Liu, Tao Jiang, Xianjun Lyu
Summary: Hexaamminecobalt(III) is an efficient catalyst for gold thiosulfate leaching, surpassing Co(II) and Cu(II), enabling more efficient gold recovery through resin adsorption. This catalyst shows promise in replacing Cu(II) for gold extraction and recovery from ores.
MINERALS ENGINEERING
(2021)
Article
Chemistry, Applied
Yong Xiang, Yun Liu, Xiaoyuechuan Ma, Wencai Bai, Li Xu, Chunmei Cao, Guoji Liu
Summary: In this study, a new adsorbent RFT was synthesized and exhibited outstanding Au(III) adsorption performance. RFT, with abundant phenolic hydroxyl and thiourea functional groups, efficiently adsorbed Au(III) and also served as a catalyst for the reduction of hazardous substances.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Engineering, Environmental
Chunlin He, Yun Liu, Chunhui Zheng, Yan Liao, Toyohisa Fujita, Yuezhou Wei, Guifang Wang, Shaojian Ma
Summary: Solvent-impregnated resins (CA-12/SIRs) were prepared using amidoxime resin waste as a polymeric support. The CA-12/SIRs exhibited excellent adsorbent properties for gallium and showed promise for gallium purification. This study also provided a new direction for the preparation of impregnated resins using other types of waste resins.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Mustafa Can, Engin Deniz Parlar, Mustafa Akcil, Abdulkadir Kizilarslan, Semra Boran, Abdullah Hulusi Kokcam, Oezer Uygun
Summary: Pyrogallol molecules were successfully immobilized onto aminopropyl molecule functionalized MCM41 nanoparticles to obtain a fast and high gold adsorption capacity. The Taguchi statistical method was used to determine the factors affecting the gold(iii) adsorption efficiency. The optimum adsorption conditions were determined to be pH 5, 250 rpm stirring speed, 0.025 g adsorbent mass, 40 degrees C temperature, 600 mg L-1 Au(iii) concentration and 15 min time. The adsorption mechanism fits the pseudo-second-order kinetic model assuming the formation of a single chemical adsorption layer on the adsorbent surface. The Langmuir isotherm model best represents the adsorption isotherms, which exhibit a spontaneous endothermic behavior. FTIR, SEM, EDX and XRD analyses showed that phenolic -OH functional groups adsorb Au(iii) ions on the APMCMC41-Py surface with their reducing character.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Applied
Sitki Baytak, Saima Qayoom Memon, Mazhar Iqbal Khaskheli, Abdul Majid Channa
Summary: This study demonstrates the effectiveness of a newly synthesized amino resin supported nano scale zero valent iron (RXI) in the remediation of lead and cadmium from aqueous system. The synthesized composite showed high removal efficiency of metal ions and exhibited a good adsorption capacity.
JOURNAL OF WATER CHEMISTRY AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Milena Kostrzewa, Katarzyna Staszak, Dobrochna Ginter-Kramarczyk, Izabela Kruszelnicka, Wojciech Gora, Marek Baraniak, Grzegorz Lota, Magdalena Regel-Rosocka
Summary: This study investigated the removal of Cr(III) from nickel sulfate waste solutions using adsorption and precipitation methods. The results showed that precipitation with a NaOH solution was more efficient in removing Cr(III) compared to adsorption with Dowex G26 resin.
