A Novel One-Pot Route for Large-Scale Synthesis of Novel Magnetic CNTs/Fe@C Hybrids and Their Applications for Binary Dye Removal

Novel magnetic CNTs/Fe@C was prepared via an easy and one-pot method with a high specific surface area (186.3 m²/g) and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectra, etc., and it was used for dye removal. Adsorption experiments showed significant differences between single and binary dye systems. The initial adsorption capacities to methylene blue (MB), methyl orange (MO), and neutral red (NR) were 132.58, 16.53, and 98.81 mg/g, and the adsorption equilibrium time was 80, 40, and 10 min, respectively. The MB-MO dye system showed a cooperative adsorption. Its adsorption capacities increased by 30% and 35%, and equilibrium time decreased by 25% and 50%, whereas the MB-NR system presented a competitive adsorption. Its adsorption capacities decreased by 20% and 33%, and its equilibrium time was elongated 2-fold. Various isotherms and kinetic models were used to fit the data and investigate the adsorption processes as well as mechanisms. Interactions between dyes in the solution and their adsorption mechanisms onto CNTs/Fe@C were also studied through Fourier transform infrared (FT-IR), Raman spectra, and zeta potential. This study indicated that CNTs/Fe@C can be used as a promising adsorbent for large-scale applications, and cooperative and competitive adsorption in binary dye systems has an influence upon the adsorption process, which can help address dye pollution efficiently

Supp Figure 2: Revisiting Ediacaran to early Cambrian depositional history of the western North China: Did it remain passive until mid-Paleozoic?

Appendix Figure 2. Representative cathodoluminescence images of analyzed zircons from Statherian to Cambrian samples from the western North China Block, with red circles showing analytical spots and yellow and white numbers displaying corresponding U-Pb ages and Th/U ratios, respectively. (a) S002, (b) QLSLQ, (c) YSX-1, (d) QLSHW, (e) YSX-3, (f) SYSX-7

Supp Table 2: Revisiting Ediacaran to early Cambrian depositional history of the western North China: Did it remain passive until mid-Paleozoic?

Supplementary Table 2. In-situ Lu-Hf isotope data of detrital zircons with U-Pb ages of c. 1600–500 Ma from Ediacaran and Cambrian sandstones from the western North China Block

Additional file 1 of Secondary ocular hypertension due to tentorial dural arteriovenous fistula: a case report

Supplementary Material

Supp Table 1: Revisiting Ediacaran to early Cambrian depositional history of the western North China: Did it remain passive until mid-Paleozoic?

Supplementary Table 1. Laser ablation inductively coupled plasma spectrometry (LA-ICP-MS) data for detrital zircons of Statherian and Cambrian sandstones from the western North China Block

Supp Table 2: Revisiting Ediacaran to early Cambrian depositional history of the western North China: Did it remain passive until mid-Paleozoic?

Supplementary Table 2. In-situ Lu-Hf isotope data of detrital zircons with U-Pb ages of c. 1600–500 Ma from Ediacaran and Cambrian sandstones from the western North China Block

Supp Figure 1: Revisiting Ediacaran to early Cambrian depositional history of the western North China: Did it remain passive until mid-Paleozoic?

Appendix Figure 1. Representative photomicrographs (cross-polarized light) for sampled selected for detrital zircon U-Pb analyses. Sample locations are shown in Figure 2. (a) Sample S002 from the Hangqikou Formation at the Huating Section. (b) Sample QLSLQ from the Luoqan Formation at the Qinglongshan Section. (c) Sample YSX-1 from the Luoqan Formation at the Yinshixia Section. (d) Sample QLSHW from the Suyukou Formation at the Qinglongshan Section. (e) Sample YSX-3 from the Suyukou Formation at the Yinshixia Section. (f) Sample SYSX-7 from the Mantou Formation at the Yinshixia Section. Qtz, quartz grain; Kfs, K-feldspar; Lv, Volcanic lithic fragement; Ls, Sedimentary lithic fragment

Supp Table 1: Revisiting Ediacaran to early Cambrian depositional history of the western North China: Did it remain passive until mid-Paleozoic?

Supplementary Table 1. Laser ablation inductively coupled plasma spectrometry (LA-ICP-MS) data for detrital zircons of Statherian and Cambrian sandstones from the western North China Block

Additional file 1 of The association between sarcopenia and incident of depressive symptoms: a prospective cohort study

Supplementary Material 1: Characteristics of the participants at baseline in subgroup

Additional file 1: of Association in a Chinese population of a genetic variation in the early B-cell factor 1 gene with coronary artery disease

Clinical data of CAD cases and controls from 2013 to 2015. For the convenience of data analysis, Arabic numbers were used to describe the patient’s specific characteristics and the details were placed in the first line of the Additional file 1. (XLSX 40 kb