45,46 Notably, the weak peak at 402.2 eV was associated with positively charged amine (C–NH3+) (Figure S2B).46,47 Furthermore, the N content of HPC–NH2 determined by XPS and EA were 2.68% and 0.57%, respectively (Table S2), which clearly indicated the successful grafting of –NH2 ...
When pH > 7.2, the main form of phosphate in the solution was the affinity of adsorption sites are relatively weak and thus the removal efficiency E% and adsorption capacity qe shows a decreasing trend. Additionally, it is also noticed that pH affects the surface charge of the adsorbents...
The weak band at 1507 cm−1 is related to the C=C vibration of the benzene ring. The strong band at 1391 cm−1 is ascribed to the C-O bond of the C-OH group of the carboxylic acid [56]. Next to this peak appears a small peak at 1424 cm−1 related to the C-C of the...
(CeO2) has good conductivity and stability, and has high oxygen storage capacity because of the existence of reversible REDOX pairs of Ce3+/Ce4+, which enables it to have strong electronic interaction with other components at the interface [7]. Therefore, it has potential application as a ...
Our previous study on shortened analogs of KLAKLAK-NH2, also containing Ala and β-Ala, revealed that the samples with α-Ala had weak antibacterial activity only against E. coli K12 407, while against B. subtilis 3562 and C. albicans 74, some antimicrobial activity was observed [25]. ...
As a comparison, UiO-66-NH2@BC aerogel has a pressure drop of 28.1 Pa, reflecting that the presence of amine groups presents a weak detrimental effect on gas permeation. Meanwhile, the creation of hierarchal pores is important to reduce gas diffusion barriers. It is obvious that UiO-66-NH2...
It can be seen that Fe 2p had a weak peak at 707.0 eV, indicating that the surface contained a small amount of Fe. Based on the results of S 2p and O 1s, the surface was covered by Lubricants 2019, 7, 26 9 of 14 sulfates (Feu(SO4)v and ZnSO4) [13,23,24]. For O 1s, ...