Facile synthesis of reduced graphene oxide/carbon/calcium alginate aerogel for the removal of pharmaceutical pollutants

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 139688 - 139688

Опубликована: Янв. 1, 2025

Язык: Английский

Preparation and Performance Research of Pb(II)-Imprinted Acrylonitrile-Co-Acrylic Acid Composite Material with Modified Sand Particles as Carrier

Polymers, Год журнала: 2025, Номер 17(2), С. 229 - 229

Опубликована: Янв. 17, 2025

Lead (Pb) is classified as a prevalent metallic pollutant, significantly impacting the ecological environment, especially human health. Consequently, it crucial to develop adsorbent materials that are environmentally friendly, cost-effective, and which possess high selectivity. This study aims fabricate Pb(II)-imprinted acrylonitrile-co-acrylic acid composite material by using modified sand particles carrier, then investigate its properties. Through pretreatment of particles, acrylonitrile acrylic were polymerized on surface Pb(II) served template ion for imprinting. A variety characterization methods used verify conduct an analysis morphology, chemical composition, pore characteristics. The adsorption efficiency this comprehensively explored, with process involving kinetics, isotherms, selective adsorption, reuse experiments. static experiments, multiple elements influencing ability towards investigated. It was demonstrated results prepared possesses rich structure excellent recognition ability. investigation kinetics in line quasi-first-order quasi-second-order kinetic models, while isotherm, obeys Langmuir model. ideal conditions pH = 7, reaching equilibrium within 105 min. Even when interfering ions present, still had selectivity Pb(II). showed saturation capability 41.83 mg·g−1, considerably surpassing non-imprinted counterpart. After being reused eight times, can maintain above 79% demonstrates potential practical application environment.

Язык: Английский

SILVER-FUNCTIONALIZED MESOPOROUS SILICA NANOPARTICLE COATINGS: OPTIMAL THERMAL STABILITY AND IONIC ACTIVITY FOR ANTIMICROBIAL APPLICATIONS

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 136387 - 136387

Опубликована: Фев. 1, 2025

Язык: Английский