Characteristics of Carbon Material Formation on SBA-15 and Ni-SBA-15 Templates by Acetylene Decomposition and Their Bioactivity Effects

Abstract

Carbon spheres and tubes were formed from acetylene decomposition on SBA-15 and Ni-SBA-15 at 650–850 °C. At 650 °C, the decomposed carbons covered the surface of the support, and no carbon spheres and filament materials were formed. Carbon sphere formation occurred at 750 °C–850 °C; with diameters ranging from 0.8 μm–1.1 μm. For Ni-SBA-15, the diameters of the spheres and filaments were 0.8 μm and 62 nm, respectively, at 650 °C. At 750 °C, the diameter of the ball carbon materials ranged from 0.7 μm–0.8 μm, the diameter of the carbon tubes formed was 120–130 nm, and their pore diameter was 8.0 nm–11 nm. At 850 °C, the diameters of ball carbon materials and carbon tubes were similar to those of the materials at the formation temperature, 750 °C. Si, O and C were the main constituents of SBA-15; Ni-SBA-15 and carbon material formation supports. High-ring PAHs (such as BaP (five rings); IND (six rings); DBA (five rings) and B[ghi]P (six rings)) exist in carbon materials. SBA-15 revealed insignificant cytotoxicity, but Ni-SBA-15 inhibited the proliferation of human lung cancer cells (A549). Less inhibition on cell viability and reactive oxidative species (ROS) generation on A549 were determined for carbon material formation on the Ni-SBA-15 compared to the Ni-SBA-15.

Retracted: Design and fabrication of electrospun SBA-15-incorporated PVA with curcumin: a biomimetic nanoscaffold for skin tissue engineering

“…The cells that were attached on the surface of the fabricated PVA and SBA-15/PVA nanofiber and TCP after 4 h of incubation are shown in figure 9(A). The higher percentage of cell adhesion observed on the composite nanofibrous scaffold might be due to the presence of mesoporous silica SBA-15 in the nanofiber scaffold, which is said to increase cell adhesion and proliferation with its highly interconnected porous structure and cytocompatibility [45]. The results indicate that all three wt% (1, 3 and 5 wt%)-incorporated SBA-15/ PVA nanofibrous scaffolds showed a similar percentage of HaCaT cell adhesion and proliferation [46].…”

Development and application of SBA‐15 assisted electromembrane extraction followed by corona discharge ion mobility spectrometry for the determination of Thiabendazole in fruit juice samples

“…SBA‐15 has taken an efficient adsorbent into consideration due to its high unique surface areas, surface reactivity, thermal and mechanical stability, highly uniform pore distribution, and tunable pore sizes. Most importantly, due to the presence of silanol (SiOH) groups , this type of nano‐adsorbent has negatively charged surface, which may prevent the absorption of negatively charged ions, whereas it can improve absorption of cationic ions. Therefore, SBA‐15 can be used for the development of sensitive and selective sample preparation methods for the detection of heavy metal ions, and other positively charged organic pollutants.…”

Au and AuCu Nanoparticles Supported on SBA-15 Ordered Mesoporous Titania-Silica as Catalysts for Methylene Blue Photodegradation

“…Nonetheless, titania specific surface area can be substantially increased by incorporating TiO 2 active species in the internal surface of a mesoporous structure with a considerably high specific surface area like SBA-15 silica, obtaining titania-silica nanocomposites with high surface area values [ 31 ]. This is due to the fact that SBA-15 ordered mesoporous silica has unique properties, allowing its successful use in many different applications, including drug delivery, biomedical, diagnostic, engineering catalyst supports, separation of proteins, enzyme immobilization [ 32 , 33 , 34 ] and, thanks to its excellent adsorption ability, adsorption of heavy metal ions [ 35 ], organic dyes [ 24 ], polycyclic aromatic hydrocarbons [ 36 ], and other organic pollutants.…”