Preparation and application of Mg–Al composite oxide/coconut shell carbon fiber for effective removal of phosphorus from domestic sewage

High Selectivity and Reusability of Biomass-Based Adsorbent for Chloramphenicol Removal

“…This is mainly because the pH value of the solution affects the chemical valence state (ionization or neutral) of the CAPC, thus changing the adsorption characteristics of the CAPC on CFS adsorbent [29]. As can be seen from Figure 5b, accordingly, the isoelectric point (pHpzc) of CFS adsorbent was at 6.68 [10], suggesting that the surface of the prepared CFS adsorbents were positively charged at pH < 6.68 and the negatively charged at pH > 6.68. At low pH, the CAPC molecule was better non-ionized.…”

“…The detailed preparation for corn stalk biomass fiber (CF) was described by Yuan et al [10] method. Briefly, 100 g of corn stalk was dried at 60 • C for 6 h, cut into pieces, and placed in a NaOH solution (1 M, 500 mL).…”

“…where q e (mg/g) and q t (mg/g) are the amount of CAPC adsorbed on CFS adsorbent at equilibrium and time t (min), respectively. K 1 (min −1 ), K 2 (g mg −1 min −1 ) and K p (mg g −1 min 1/2 ) are the rate constants of adsorption for the PFO, PSO and IDK model [10,11]. 1.…”

“…Adsorbent is the key to affect the treatment effect. In recent years, more and more attention has been paid to the development of advanced adsorbents through sustainable and environmental protection methods, such as activated carbon and biomass-based material, which can be used to reduce total dissolved solids, including organic matter, dyes, metal ions and drug molecules [10][11][12]. Recently, biomass-based materials have attracted extensive attention because of their advantages of low cost, environment-friendly and nonpollution.…”

“…For example, Yuan et al prepared a Mg-Al/CSF composite adsorbent material by using waste coconut shell fiber (CSF) as the biomass carbon precursor and used for the removal of phosphorus from aqueous solution. The adsorption mechanism was the synergistic combination of surface adsorption and chemical adsorption [10]. Ahmed et al prepared nZVI-fBC composite material with nano-Fe 0 in situ onto surface of biomass material and investigated the removing step of chlorinated antibiotic chloramphenicol [13].…”