Development of Ni-doped A-site lanthanides-based perovskite-type oxide catalysts for CO methanation by auto-combustion method.

Engineering the interfacial interaction between the active metal element and support material is a promising strategy for improving the performance of catalysts toward CO methanation. Herein, the Ni-doped rare-earth metal-based A-site substituted perovskite-type oxide catalysts (Ni/AMnO; A = Sm, La, Nd, Ce, Pr) were synthesized by auto-combustion method, thoroughly characterized, and evaluated for CO methanation reaction. The XRD analysis confirmed the perovskite structure and the formation of nano-size particles with crystallite sizes ranging from 18 to 47 nm.

3D-printed zeolite 13X-Strontium chloride units as ammonia carriers.

The selective catalytic reduction (SCR) system in automobiles using urea solution as a source of NH suffers from solid deposit problems in pipelines and poor efficiency during engine startup. Although direct use of high pressure NH is restricted due to safety concerns, which can be overcome by using solid sorbents as NH carrier. Strontium chloride (SrCl) is considered the best sorbent due to its high sorption capacity; however, challenges are associated with the processing of stable engineering structures due to extraordinary volume expansion during the NH sorption.

A review on activated carbon modifications for the treatment of wastewater containing anionic dyes.

Polluted water resources, particularly those polluted with industrial effluents' dyes, are carcinogenic and hence pose a severe threat to sustainable and longstanding worldwide development. Meanwhile, adsorption is a promising process for polluted/wastewater treatment. In particular, activated carbon (AC) is popular among various wastewater treatment adsorbents, especially in the organic contaminants' remediation in wastewater.

A phase conversion method to anchor ZIF-8 onto a PAN nanofiber surface for CO capture.

Polyacrylonitrile (PAN) nanofibers were prepared by electrospinning and coated with zeolitic imidazolate framework-8 (ZIF-8) by a phase conversion growth method and investigated for CO capture. The PAN nanofibers were pre-treated with NaOH, and further coated with zinc hydroxide, which was subsequently converted into ZIF-8 by the addition of 2-methyl imidazolate. In the resulting flexible ZIF-8/PAN composite nanofibers, ZIF-8 loadings of up to 57 wt% were achieved.

KIT-6 induced mesostructured TiO for photocatalytic degradation of methyl blue.

In this study, titania/silica nanocomposite and mesoporous TiO (m-TiO) photocatalysts are developed by KIT-6 template via a sol-gel approach. The synthesized photocatalysts are characterized by XRD, EDX, SEM, Raman, PL, and UV-vis DRS analysis techniques. The as-synthesized series revealed a high surface area, smaller size, a greater number of accessible active sites, and enhanced light-harvesting capability.

Carbon Nanotubes Incorporated Z-Scheme Assembly of AgBr/TiO for Photocatalytic Hydrogen Production under Visible Light Irradiations.

Photocatalytic H production is a promising strategy toward green energy and alternative to carbon-based fuels which are the root cause of global warming and pollution. In this study, carbon nanotubes (CNTs) incorporated Z-scheme assembly of AgBr/TiO was developed for photocatalytic H production under visible light irradiations. Synthesized photocatalysts were characterized through transmission electron microscope (TEM), X-ray photoelectron spectra (XPS), X-ray diffractometer (XRD), Fourier transform infrared (FTIR), photoluminescence spectra (PL), Brunauer Emmet-Teller(BET), and UV-vis spectroscopy analysis techniques.