Fabrication strategies and Cr(VI) elimination activities of the MOF-derivatives and their composites

PdPbAg alloy NPs immobilized on reduced graphene oxide/In2O3 composites as highly active electrocatalysts for direct ethylene glycol fuel cells

“…Metal–organic frameworks (MOFs) have the advantages of high porosity, tunable pore size, and large internal specific surface area. 7,8 Reduced graphene oxide (rGO) can anchor metal nanoparticles through its inherent residual oxygen-containing functional groups and defect sites, 9 which can enhance the conductivity of catalysts. Improve the dispersion of the supported metals to enhance the electrocatalytic activity and stability of EGOR by providing more active centers and electron transport.…”

Recent Advances in Biomass-Based Waste Materials for the Removal of Chromium (VI) from Wastewater: A Review

“…Recently, several review papers on removing Cr(VI) from water and wastewaters by adsorption process have been published [23][24][25]. Most of the reviews focused only one specifi c type of adsorbents such as carbon nanotubes [26], activated carbon derived from biomass [27], carbonaceous nanomaterials [28],microporous polymers [29], silica-based materials [30], chitosanbased nanocomposite [31], magnetic iron oxides [32], nanoparticle-based adsorbent [33,34], polyaniline-based materials [35], metal-organic framework (MOF)derivatives and their composites [36], and natural minerals [37]. This study off ers a signifi cant and thorough review on removing Cr(VI) from water by using biomass-based waste materials (BMWs) as adsorbents, especially those that have emerged in recent years.…”

Visible-Light-Driven Sonophotocatalysis for the Rapid Reduction of Aqueous Cr(VI) Based on Zirconium–Porphyrin Metal–Organic Frameworks with csq Topology

“…Hexavalent chromium Cr­(VI) ions, an essential industrial metal raw material, have been widely applied in paint making, leather tanning, alloy preparation, wood preservation, and so on. − However, water-soluble Cr­(VI) ions existing in the form of Cr 2 O 7 2– or CrO 4 2– are also considered to be highly toxic and carcinogenic contaminants, leading to serious damage to the environment and human beings. , These issues accelerated the development of technology for the removal and conversion of Cr­(VI). Notably, Cr­(III) exhibits characteristics of low toxicity and easily formed insoluble precipitates in neutral or basic solutions .…”