Carbon-based selenium: an easily fabricated environmental material for removing lead from the electrolytic wastewater

Selenium-doped carbon materials: synthesis and applications for sustainable technologies

“…Utilizing NaHSe selenization of various carbohydrates and biomass (e.g., glucose, fructose, sucrose, maltose, potato starch, cotton, and straw), a whole range of carbonaceous materials was prepared via pyrolysis at ∼500 °C and then probed for heavy metal removal from wastewater. 79 Se and N co-doped carbon nanosheets with a micro-, meso-, macroporous hierarchical structure, S BET of up to 645 m 2 g −1 and up to 1.31 wt% Se content (determined by ICP-MS) were obtained by pyrolyzing SeO 2 , chitosan, and NH 4 Cl at 1000 °C (Fig. 16).…”

“…Many interesting examples of biochars serving as high-performance adsorbents for metal removal and recycling can be found in the literature. 79,123 Zhu et al presented a rich family of Se-doped biochars prepared from various carbohydrates via their selenization followed by pyrolysis. 79,123 The Se-doped chars were utilized to remove Pb from wastewater from a lead battery factory.…”

“…79,123 Zhu et al presented a rich family of Se-doped biochars prepared from various carbohydrates via their selenization followed by pyrolysis. 79,123 The Se-doped chars were utilized to remove Pb from wastewater from a lead battery factory. 79 Even a small amount of Se doping (∼0.34 wt%) significantly enhanced the Pb adsorption capacity.…”

A review on adsorption characteristics and influencing mechanism of heavy metals in farmland soil

“…Zhida et al found that the adsorption capacity of Pb can be signicantly improved by more than 2.56 times when a very small amount of Se is introduced into the material. 21 Gailer's blood analysis of rabbits found that Se can form Se-As and Se-Hg compounds with As and Hg, thus reducing the toxic effects of heavy metals on the body, but whether this mechanism exists in soil remains to be further studied, and although some progress has been made in the study of heavy metal interaction, the mechanism of their interaction is still unclear. 22 Clay minerals have large cation exchange capacities.…”

The efficient removal of diclofenac sodium and bromocresol green from aqueous solution by sea urchin-like Ni/Co-BTC bimetallic organic framework: adsorption isotherms, kinetics and mechanisms

“…11,12 As is known to us, the key component of the adsorption method is the adsorbent. To date, various adsorbents have been prepared and applied for removing ECs from wastewater, such as carbon materials, [13][14][15] porous materials, [16][17][18] inorganic non-metallic materials, [19][20][21] biological materials 22,23 and polymeric materials. [24][25][26][27] However, most adsorbents have some problems of low adsorption capacity and complex preparation process, thus limiting their practical application.…”