Adsorbents for CO₂ captured with nano silica as support were synthesized by impregnating polyethyleneimine (PEI) into silica.

After carbonization and activation, pine cone shell-based activated carbons were used to adsorb CO₂, presenting a good adsorption performance.

Capturing anthropogenic CO2 in a cost-effective and highly efficient manner is one of the most challenging issues faced by scientists today. Herein, we report novel structure-reforming approach to convert steel slag, cheap, abundant, nontoxic calcium-rich industrial waste, as only feedstock into superior CaO-based, self-stabilizing sorbents. The capture capacity all slag-derived sorbents was improved more than 10-fold compared raw with maximum uptake achieving at 0.50 gCO2 gsorbent(-1)....

High-temperature sorption of CO2 via calcium looping has wide applications in postcombustion carbon capture, sorption-enhanced hydrogen production, and inherent energy storage. However, fast deactivations CaO sorbents low uptake the carbonation stage are major drawbacks this technology. For first time, we developed a green approach through reuse nanosilica derived from coal fly ash (CFA) to enhance both cyclic uptakes kinetics sorbents. The as-synthesized nanosilica-supported sorbent showed...

Here we report for the first time, a novel method of low temperature vapor phase hydrolysis production nano-structured silica particles. Silica nanoparticles were obtained by silicon tetrachloride with water at range (150–250 °C). The effects reaction and residence time on specific surface area size distribution determined to obtain optimal synthesis conditions. 418 m2 g−1 an average 141.7 nm 150 °C 5 s. particle morphology, composition, chemical thermal analysis, functional groups present...

An economical and environmentally benign method is proposed for the preparation of silica nanoparticles by hydrolysis silicon tetrachloride vapor with water at a low temperature (∼150 °C). Analysis X-ray fluorescence, diffraction, scanning electron microscopy, examination nanoparticle size distribution, specific surface area, pore diameter revealed that dry processing was more suitable than wet collection nanoparticles. The porous amorphous had high purity (99.89 wt % SiO2), large area...

Ordered mesoporous materials have attracted much attention owing to their superior structural properties. In this work, we develop a green and facile method convert coal fly ash, cheap, abundant, silicon-rich industrial waste, into highly ordered nanosilica. An energy-efficient technique, the alkali-dissolution process, was systematically studied for extraction of silica from waste materials, instead conventional alkaline fusion method. The efficiency could reach up 46.62% within 0.5 h at...

Abstract Direct gas–solid carbonation of steel slag under various operational conditions was investigated to determine the sequestration flue gas CO 2 . X‐ray diffraction analysis revealed existence portlandite, which provided a maximum theoretical potential 159.4 kg t −1 as calculated by reference intensity ratio method. The reaction occurred through fast kinetically controlled stage with an activation energy 21.29 kJ mol , followed 10 3 orders magnitude slower diffusion‐controlled 49.54...

Special-flavor Baijiu is a unique in Jiangxi Province, China, whose uniqueness mainly depends on the production process of special-flavor Daqu . However, microbial structure and physicochemical indices different parts are still unknown. This greatly reduces actual value Therefore, culture-dependent Illumina MiSeq sequencing methods were used to analyze The results indicated that there was complicated diversity Chinese predominant bacterial communities Bacillales, Lactobacillales,...

Ferroptosis is an emerging programmed cell death and plays essential roles in tumorigenesis, including colorectal cancer (CRC). The present study intended to disclose the role of a novel oncogene circular RNA (circRNA) circSTIL CRC phenotypes, especially ferroptosis. expression was measured tissues cells. Then, impacts on proliferation ferroptosis cells were examined by loss-of-function assays vitro. Bioinformatics, luciferase reporter assay rescue further performed reveal ceRNA-associated...

A highly efficient CO₂capture process integrating calcium looping and waste recycling into iron steel production is proposed, which can also valorize the slag<italic>via</italic>a simultaneous CaO recycling.

Carbon-neutral application of renewable biogas to valuable chemical raw materials has received much attention in sustainable areas, while sulfur poisoning remains a big problem dry reforming process. In this work, deactivation and regeneration performance Ni/SiO2 catalyst model related mechanisms were studied. The effects H2S content (50 100 ppm) reaction temperature (700–800 °C) on investigated. Three methods (H2S feeding cessation, temperature-programmed calcination (TPC), O2 activation)...

The rapid deactivation of CaO sorbents due to sintering currently presents a major barrier calcium looping for CO2 capture. In this work, we report an easy method synthesizing highly stable CaO-based through mechanical mixing precursor and coal fly ash (solid waste from coal-fired plants). To investigate the performance as-synthesized sorbents, effects precursors carbonation–calcination conditions were studied discussed. synthetic sorbent derived oxalate (90%CaC2O4-FA-2h) showed best...

Calcium-looping technology has been identified as one of the most favorable CO2 capture techniques for implementation carbon capture, utilization, and storage (CCUS); however, rapid deactivation CaO sorbents due to sintering is currently a major barrier this technology. We report first time an environmentally benign cost-effective strategy reduce by adding waste-derived nanosilica, synthesized from photovoltaic waste (SiCl4), into Cao-based through simple dry mixing procedure. The...

A highly stabilizing effect of fly ash on CaO-based sorbents under severe calcination conditions.

Refractory/relapsed B cell lymphoma patients who received the available anti-CD19 chimeric antigen receptor (CAR) T cells may still experience a short duration of remission. Here in this study, we evaluated safety and efficacy novel dominant-negative programmed death-1 (PD-1) armored CAR cells. A total 9 (including 4 diffuse large lymphomas, DLBCL, 2 transformed follicular TFL, 3 FL) infusion at dose more than 1 × 106/kg. Grade ≥ cytokine release syndrome (CRS) neurotoxicity were observed...

Waste-derived SiO₂ was used as catalyst support in the biogas dry reforming process, which showed a high catalytic activity and good stability.

Amine functional adsorbents as a promising choice for practical CO2 capture applications had attracted extensive interest, but the formation of urea linkages between amine and is extremely adverse to its development application. Therefore, through learning mechanism will be useful promote Temperature moisture are two key factors influencing CO2. In this study, we found that temperature obviously affected kinetics linkages, three points were discerned; when reached 95, 115, 121 °C, rate...