Mechanisms of dyes adsorption on titanium oxide– graphene oxide nanocomposites

Cano, Francisco; Reyes-Vallejo, O.; Ashok, A; Olvera, M. de la L.; Velumani, S.; Kassiba, A.

doi:10.1016/j.ceramint.2023.03.249

Cited by 13 publications

(1 citation statement)

References 83 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Complexes formed between oxygen functional groups on graphene and cationic metals play a crucial role in the adsorption mechanism utilized by graphene for removing hazardous metals. Similarly, in the case of organic dyes (Cano et al, 2023), contact occurs through the expanded configuration of πelectrons within graphene. The incorporation of MnO 2 nanotubes into reduced graphene oxide (rGO) hydrogel by Zeng et al resulted in the creation of a three-dimensional nanomaterial with a size of 20 nm.…”

Section: Functionalized Carbon (C) Nanomaterials For Removing Toxic M...mentioning

confidence: 99%

Nano-revolution in heavy metal removal: engineered nanomaterials for cleaner water

Karnwal,

Malik

2024

Front. Environ. Sci.

View full text Add to dashboard Cite

Engineered nanomaterials have emerged as a promising technology for water treatment, particularly for removing heavy metals. Their unique physicochemical properties enable them to adsorb large quantities of metals even at low concentrations. This review explores the efficacy of various nanomaterials, including zeolites, polymers, chitosan, metal oxides, and metals, in removing heavy metals from water under different conditions. Functionalization of nanomaterials is a strategy to enhance their separation, stability, and adsorption capacity. Experimental parameters such as pH, adsorbent dosage, temperature, contact time, and ionic strength significantly influence the adsorption process. In comparison, engineered nanomaterials show promise for heavy metal remediation, but several challenges exist, including aggregation, stability, mechanical strength, long-term performance, and scalability. Furthermore, the potential environmental and health impacts of nanomaterials require careful consideration. Future research should focus on addressing these challenges and developing sustainable nanomaterial-based remediation strategies. This will involve interdisciplinary collaboration, adherence to green chemistry principles, and comprehensive risk assessments to ensure the safe and effective deployment of nanomaterials in heavy metal remediation at both lab and large-scale levels.

show abstract

Section: Functionalized Carbon (C) Nanomaterials For Removing Toxic M...mentioning

confidence: 99%