Ultrahigh adsorption by regenerable iron-cobalt core-shell nanospheres and their synergetic effect on nanohybrid membranes for removal of malachite green dye

Advances in Nanohybrid Membranes for Dye Reduction: A Comprehensive Review

“…5, which differentiates this research from other research that investigated water as a solvent. Also, the dye concentration in this study is the highest value between the values of Tables 2-3, which has also been reported in the work of Iqbal et al [136] with a high dye circuit, albeit less than the present study, and the dye concentration in other studies has been significantly less than the two mentioned studies. The concentration of the selected dyes by Syed Ibrahim et al [54] was as low as 10 mg L −1 .…”

“…All the illustrations except real white–black images in the center: Iron‐cobalt (Fe‐Co) core‐shell nanospheres adsorb Malachite Green dye. [ 136 ] Reprinted with permission. Transmission Electron Microscopy (TEM) as four white–black images in the center: Fe‐Co nanoparticles with a scale bar of 40 nm (top left), Fe‐Co with an average 10 nm diameter and 20 nm scale bar (top right), Fe‐Co nanoparticles with an oxide shell when exposed to air, the scale bar is 5 nm (middle), Fe‐Co with average 20 nm diameter after 30 min annealing at 500 o C, the scale bar is 40 nm (bottom).…”

“…As depicted in Figure 7, the adsorption of 20 to 400 mg L −1 Malachite Green on the nanomaterial was examined, but the initial dye concentrations were limited to 50 to 100 mg L −1 for the dye separation via NHMs. [ 136 ] In addition, XPS, TEM, and XRD tests were only performed on nanomaterial. Leaching tests were also accomplished and the results show that no leaching of Fe or toxic Co occurred.…”

“…Flux of 214.73 l/(m 2 h) in 0.005 MPa was reported that convert to MPa in Table 2 for better comparison. [ 136 ] Lemon‐derived CQDs‐Silver (Ag/CQDs) nanoparticles were used as the membrane nanofiller for 10 mg L −1 Tartrazine filtration. [ 137 ] The modified membrane exhibited higher reversible fouling.…”

Facile Fabrication of Layered Double Hydroxide-Lignin for Efficient Adsorption of Malachite Green

“…Several cutting-edge methods, such as extraction (Raval et al, 2022) , photodegradation (Puthukkara et al, 2022) , membranes (Iqbal et al, 2022) , oxidation combining ultrasonic and electrochemical (Ren et al, 2021) , and adsorption (Moradi and Panahandeh, 2022) , have been used to remove MG from aqueous medium over the past few decades. Adsorption has garnered the most attention among these due to its straightforward functioning, design flexibility, practical recyclability, and excellent reliability.…”