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3.2. FTIR spectra of rectorite. The full FTIR spectra (in the range of 450–4000 cm −1) of raw rectorite and rectorite intercalated with different amounts of HDTMA are plotted in Fig. 3 and the band assignment for rectorite is listed in Table 2, while that for adsorbed/intercalated HDTMA is listed in Table 3.
Compared with raw rectorite microplatelets (RMs), rectorite nanosheets (RNs) have considerably greater application prospect in the preparation of advanced composite materials because of their larger aspect ratio, higher surface reactivity, and intrinsically superior mechanical and physical propertie …
Task Force on the Financial Reporting Council Assessment on HKICPA (2021) Mr Cheng received his training and qualified as a Chartered Accountant (ICAEW) in London, UK. …
Sodium-based rectorite modified by organic laponite is chosen to be the primary slurry under high-temperature environments (210℃). We developed a set of simple system structures and relatively stable fluid formulas based on the modified Sodium-based rectorite in elevated-temperature environments. At the same time, XRD, FTIR, TGA, and …
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K-rich rectorite from kaolinized micaschist of the Sesia-Lanzo Zone, Italy - Volume 36 Issue 3
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The nontoxic layered silicate rectorite (REC) with 0.5-1 wt % amount was introduced in the sheath for sustained drug delivery. Layered REC could be intercalated with PLLA macromolecule chains, leading to the densified structure for loading and keeping doxorubicin hydrochloride (DOX) while reversibly capturing and releasing DOX to delay …
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During this process, chitosan (CS) - rectorite (REC) intercalated composite films are built on the surface of cellulose acetate (CA) nanofibrous mats by a coating machine. Then, the immersion process is utilized to allow positively charged CS or CS-REC intercalated composites to uniformly assemble on the surface of negatively charged CA …
Here, an emerging chitin nanogel/rectorite nanocomposite is developed for effective hemorrhage control. Chitin chains are intercalated into rectorite and subsequent mechanical high speed stirring generates chitin nanogels, which assemble on the surface of the rectorite nanoplates through electrostatic interactions to form a sandwich structure.
Hongcheng Liu's 25 research works with 961 citations and 10,775 reads, including: Risk-Based Control Strategies of Recombinant Monoclonal Antibody Charge Variants
The results showed that the optimal condition was that the amount of Na(+)-rectorite was 2wt%, the amount of cross-linker was 0.384% and the amount of the initiator was 8%. SEM showed that it is porous products with spherical particulate surface. XRD showed that intercalation is formed between Na(+)-rectorite and sodium alginate.
rec·tor. (rĕk′tər) n. Abbr. R. 1. A cleric in charge of a parish in the Episcopal Church. 2. An Anglican parish priest in a parish where historically the priest was entitled to the tithes. 3. A Roman Catholic priest appointed to be managerial as well as spiritual head of a church or other institution, such as a seminary or university.
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Figure 8 (a) indicates that the crystal composition of the rectorite contained many impurities including muscovite, quartz, amorphous materials, and rutile. The main components of rectorite are SiO 2 and Al 2 O 3, and the SiO 2 /Al 2 O 3. The infrared spectrum of rectorite in Figure 8 (b) depicts the presence of 4 absorption bands caused …
Hongcheng Mi, School of Minerals Processing and Bioengineering, Central South University, Heping Building, Central South University Headquarters, No. 932, Lushan South Road, Yuelu District, Changsha, Hunan 410083, China. Email: [email protected] Metrics and citations Metrics.
Fig. 1 shows the FT-IR spectra of Na and Al-pillared rectorite. The FT-IR spectra of the two samples are quite similar. The band of ∼ 3640 cm − 1 corresponds to the framework water stretching vibrations. At 1630–1640 cm − 1, there are bands of flexing vibrations of free water at the edge of clay and in clay holes.All the samples have strong …
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In order to confirm the structure of the two chitosan derivatives, FT-IR spectra were investigated, as shown in Fig. 3.Firstly, comparing the spectra of chitosan with quaternized chitosan, it can be observed that the adsorption peak at 1599 cm −1 belonging to NH 2 deformation vibration in chitosan disappears, while there is a new band at 1483 …
The results showed that the polyelectrolyte with a highly cross-linked structure can be obtained by mixing QCMC and SA. The composite sponges had good water-absorption capacity, which could absorb ...
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