A new paradigm of ultrathin 2D nanomaterial adsorbents in aqueous media: graphene and GO, MoS₂, MXenes, and 2D MOFs

Abstract

Due to the high surface area, atomic-level thickness, and abundant exposed active sites, 2D nanomaterials are regarded potential high-performance adsorbents. We review four representative nanomaterials, graphene, MoS2, MXenes, and MOFs, for this application.

The Recent Advances in the Mechanical Properties of Self-Standing Two-Dimensional MXene-Based Nanostructures: Deep Insights into the Supercapacitor

“…There are numerous published reviews in the fields of MXenes for energy, catalysis, and environmental remediation [ 12 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. However, the reviews on the mechanical properties of self-standing MXenes are not yet reported [ 24 ].…”

Emerging pollutants—Part II: Treatment

“…The removal of EPs by CWs is mainly through the absorption and degradation (Li, Gao, et al, 2019; Li, Li, et al, 2019; Li, Zhang, Zeng, et al, 2019; Li, Liu, Zhang, Li, et al, 2019; Li, Zhang, Xia, Wang, et al, 2019; Li, Zhang, Hu, et al, 2019; Li, Sun, Zhang, Feng, et al, 2019; Li, Wang, et al, 2019; Li, Yuan, Gao, et al, 2019; Rabello et al, 2019). Adsorption is an important way to remove EPs, and the substrate, soil, and sediment of packed bed in CWs play major roles in adsorption (Nguyen, Chao, & Chen, 2019; Nguyen, Afzal, et al, 2019; Sardana, Cottrell, Soulsby, & Aziz, 2019; Zhao, Yan, et al, 2019; Zhao, Jian, et al, 2019). The degradation of EPs in CWs is mainly through microbial degradation, photolysis, and hydrolysis (Tara et al, 2019).…”

“…CAMs mainly include activated carbon (AC), carbon nanotubes (CNs), graphene, biochar (Kumari, Alam, et al, 2019; Kumari, Tyagi, et al, 2019; Wang, Ying, et al, 2019; Wang, Su, et al, 2019; Wang, Wang, et al, 2019; Wang, Huang, et al, 2019; Wang, Cai, et al, 2019; Wang, Zhu, et al, 2019; Wang, Yin, et al, 2019; Wang, Qian, et al, 2019; Wang, Zhang, et al, 2019; Yaashikaa, Senthil Kumara, Varjani, & Saravanan, 2019). Some properties, including specific surface area, pore structure, and surface functional groups, have significant impacts on the adsorption capacity of CAMs (Xing et al, 2019; Zhang, Liu, et al, 2019; Zhang, He, et al, 2019; Zhang, An, et al, 2019; Zhang, Cao, et al, 2019; Zhao, Yan, et al, 2019; Zhao, Jian, et al, 2019). In this way, many researchers focus on the modification of CAMs to improve their adsorption performance (Rasheed, Adeel, Nabeel, Bilal, & Iqbal, 2019; Zhang, Liu, et al, 2019; Zhang, He, et al, 2019; Zhang, An, et al, 2019; Zhang, Cao, et al, 2019).…”

Graphene oxide lamellar membrane with enlarged inter-layer spacing for fast preconcentration and determination of trace metal ions

“…[15][16][17][18] Carbon based nanomaterials are of considerable interests in sample preparation techniques, including graphene, graphene oxide and carbon nanotubes. [19][20][21][22] Graphene oxide (GO), a single or few-layer thick twodimensional carbon material derived from the chemical oxidation of graphite, shows excellent mechanical strength with high chemical stability. The large specic surface area and the presence of surface functional groups like epoxy (-COC-), hydroxyl (-OH), carboxyl (-COOH) and carbonyl (-C]O) at the edges and basal plane promotes the GO for its application in analytical science.…”