Utilizing Gelatin Waste for Efficient Bimodal Porous Silica Adsorbents for Carbon Dioxide Capture.

This study explores the modification of pore structures in porous silica materials synthesized using sodium silicate and waste gelatin, under varying silica-to-gelatin ratios. At ratios of 1.0-1.

Unraveling the roles of microporous and micro-mesoporous structures of carbon supports on iron oxide properties and As (V) removal performance in contaminated water.

This study investigates the impact of microporous (SP-C) and micro-mesoporous carbon (DP-C) supports on the dispersion and phase transformation of iron oxides and their arsenic (V) removal efficiency. The research demonstrates that carbon-supported iron oxide sorbents exhibit superior As(V) uptake capacity compared to unsupported FeO, attributed to reduced iron oxide crystallite sizes and As(V) adsorption on carbon supports. Maximum As(V) uptake capacities of 23.

FeO-decorated hollow porous silica spheres assisted by waste gelatin template for efficient purification of synthetic wastewater containing As(V).

Purification of As(V)-contaminated water through adsorption by FeO-based materials is a promising technology due to its low-cost and high efficiency. Dispersing the FeO phase on silica supports can improve both the adsorption rate and capacity due to the reduction in FeO particle sizes and the prevention of clumping of the FeO particles. However, the clusters in conventional silica materials largely impede the diffusion of As(V) to reach the FeO sites dispersed inside the clusters.

Hydrothermal synthesis temperature induces sponge-like loose silica structure: A potential support for FeO-based adsorbent in treating As(V)-contaminated water.

Low cost FeO-based sorbents with an exceptional selectivity toward the targeted As(V) pollutant have gained extensive attention in water treatment. However, their structural features often influence removal performance. In this respect, we present herein a rational design of silica-supported FeO sorbents with an enhanced morphological structure based on a simple temperature-induced process.

Rapid effectual entrapment of arsenic pollutant by FeO supported on bimodal meso-macroporous silica for cleaning up aquatic system.

Arsenic (As) contamination in aqueous media is a major concern due to its adverse impacts on humans and the ecosystem more broadly because of its non-biodegradability. Consequently, an effective and selective sorbent is needed urgently to scavenge As pollutant. Herein, the adsorption behaviors of As(V) by FeO and FeO supported on different silica materials, consisting of unimodal mesoporous silica (FeO/U-SiO) and dual meso-macroporous silica (FeO/B-SiO), were compared to examine their structure-efficiency relationships in the elimination of As(V).

Sustainable utilization of waste glycerol for 1,3-propanediol production over Pt/WO/AlO catalysts: Effects of catalyst pore sizes and optimization of synthesis conditions.

Recycling of waste glycerol derived from biodiesel production to high value-added chemicals is essential for sustainable development of Bio-Circular-Green Economy. This work studied the conversion of glycerol to 1,3-propanediol over Pt/WO/AlO catalysts, pointing out the impacts of catalyst pore sizes and operating conditions for maximizing the yield of 1,3-propanediol. The results suggested that both pore confinement effect and number of available reactive metals as well as operating conditions determined the glycerol conversion and 1,3-propanediol selectivity.

Impact of pore characteristics of silica materials on loading capacity and release behavior of ibuprofen.

Impact of pore characteristics of porous silica supports on loading capacity and release behavior of ibuprofen was investigated. The porous silica materials and ibuprofen-loaded porous silica materials were thoroughly characterized by N2-sorption, thermal gravimetric and derivative weight analyses (TG-DTW), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscope (TEM) to determine the physical properties of materials, amount of ibuprofen adsorbed and position of ibuprofen. The detailed characterization reveals that the ibuprofen molecules adsorbed inside the mesopores.