| Title | Multifunctional ternary ZnMgFe LDH as an efficient adsorbent for ceftriaxone sodium and antimicrobial agent: sustainability of adsorption waste as a catalyst for methanol electro-oxidation |
|---|---|
| ID_Doc | 15216 |
| Authors | Mohamed, H; Mahmoud, R; Abdelwahab, A; Farghali, AA; El-Ela, FIA; Allah, AE |
| Title | Multifunctional ternary ZnMgFe LDH as an efficient adsorbent for ceftriaxone sodium and antimicrobial agent: sustainability of adsorption waste as a catalyst for methanol electro-oxidation |
| Year | 2023 |
| Published | Rsc Advances, 13, 37 |
| Abstract | In order to achieve sustainable benefits for the adsorption of wastewater pollutants, spent adsorbents need to be recycled and/or valorized. This work studied a two-dimensional (2D) ZnMgFe layered double hydroxide (LDH) for ceftriaxone sodium (CTX) adsorption. This LDH showed a crystallite size of 9.8 nm, a BET surface area of 367.59 m2 g-1, and a micro-sphere-like morphology. The factors investigated in this study were the adsorbent dose, initial concentration, initial pH, and contact time. ZnMgFe LDH showed 99% removal of CTX with a maximum adsorption capacity of 241.75 mg g-1 at pH = 5. The Dubinin-Radushkevich model was found to be the most adequate isotherm model. The spent adsorbent (ZnMgFe LDH/CTX) was reused as an electro-oxidation catalyst for direct methanol fuel cells. ZnMgFe LDH/CTX showed almost a 10-fold increase in electrochemical activity for all scan rates compared to bare ZnMgFe LDH in 1 M KOH. As methanol concentration increases, the maximum current density generated by both the ZnMgFe LDH and ZnMgFe LDH/CTX samples increases. Moreover, the maximum current density for ZnMgFe LDH/CTX was 47 mA cm-2 at a methanol concentration of 3 M. Both samples possess reasonable stability over a 3600 S time window with no significant deterioration of electrochemical performance. Moreover, the antimicrobial studies showed that ZnMgFe LDH had a significant antifungal (especially Aspergillus, Mucor, and Penicillium species) and antibacterial (with greater action against Gram-positive than negative) impact on several severe infectious diseases, including Aspergillus. This study paves the way for the reuse and valorization of selected adsorbents toward circular economy requirements. ZnMgFe LDH acts as active nano adsorbent for the removal of CTX. The spent adsorbent ZnMgFe LDH/CTX was reused as an electro-catalyst for methanol fuel cell application. In addition, ZnMgFe LDH displays promising antibacterial activity of against several harmful bacterial and fungal strains. |
| https://pubs.rsc.org/en/content/articlepdf/2023/ra/d3ra03426g |
Similar Articles
| ID | Score | Article |
|---|---|---|
8803
|
GadelHak, Y; Salama, E; Tawab, SA; Mouhmed, EA; Alkhalifah, DHM; Hozzein, WN; Mohaseb, M; Mahmoud, RK; Amin, RM Waste Valorization of a Recycled ZnCoFe Mixed Metal Oxide/ Ceftriaxone Waste Layered Nanoadsorbent for Further Dye Removal(2022)Acs Omega, 7.0, 48 | |
| 10478
|
Mahmoud, R; Mohamed, HFM; Hafez, SHM; Gadelhak, YM; Abdel-Hady, EE Valorization of spent double substituted Co-Ni-Zn-Fe LDH wastewater nanoadsorbent as methanol electro-oxidation catalyst(2022)Scientific Reports, 12, 1 | |
| 21194
|
Fu, D; Kurniawan, TA; Avtar, R; Xu, P; Othman, MHD Recovering heavy metals from electroplating wastewater and their conversion into Zn2Cr-layered double hydroxide (LDH) for pyrophosphate removal from industrial wastewater(2021) | |
| 21278
|
Amoh, PO; Samy, M; Elkady, M; Shokry, H; Mensah, K Surface modification of toner-based recyclable iron oxide self-doped graphite nanocomposite to enhance methylene blue and tetracycline adsorption(2024) |