Enhanced photocatalytic degradation of eco-toxic pharmaceutical waste diclofenac sodium by anion loaded Cu-Al LDH⋅BiO composites

Kumari, Pooja; Das, Raj Kumar; Pal, Bonamali

doi:10.1016/j.jtice.2021.07.023

Cited by 12 publications

(1 citation statement)

References 49 publications

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“…As such, LDH exhibits great potential as efficient photocatalyst for organic pollutant degradation. Up to now, various routes have been developed for LDH preparation, such as co-precipitation, hydrothermal, anion exchange and sol-gel methods [17][18][19][20]. Among these methods, alkali-precipitation has attracted much attention due to its simple and low-cost features, and brings LDHs closer to practical applications.…”

Section: Introductionmentioning

confidence: 99%

Efficient Recycling Blast Furnace Slag by Constructing Ti-Embedded Layered Double Hydroxide as Visible-Light-Driven Photocatalyst

et al. 2022

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In this work, a strategy of heat treatment-precipitation has been developed to recycle Ti-containing metallurgical solid waste by forming Ti-embedded MgAl layered double hydroxide (TMA-LDH). This facile and simple route is featured by the dedicated utilization of the composition of slag with high overall recovery efficiency. Importantly, as-obtained product exhibits visible light response distinctly different from that of pristine MA-LDH ascribed to the Fe doping inherited from initial slag. Its mesoporous nanostructure also provides more microchannels for mass and carrier transfer. As such, excellent photocatalytic activity towards degradation of tetracycline hydrochloride is achieved, and 88% removal could be obtained in 60 min. Furthermore, 44% increase in efficiency than that of Ti-excluded LDH also indicates the synergistically promoting effect of Ti incorporation. Mechanism investigation suggests that Ti incorporation regulates the electronic structure of pristine LDH with more active sites, and favors the formation of radicals with improved oxidative ability for photocatalysis.

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Section: Introductionmentioning

confidence: 99%