Selective removal of anionic dyes with exceptionally high adsorption capacity and removal of dichromate (Cr2O72-) anion using Ni-Co-S/CTAB nanocomposites and its adsorption mechanism

Rational Fabrication of Multiple Dimensional Assemblies from Tryptophan‐Based Racemate

“…The maximum adsorption capacity of the assembly for RhB was about 500 mg/g (Figure S16), which partly exceeds that of nanocomposite adsorbents and are particularly well suited for dye removal. [53][54][55] The same qualitative experiments were conducted with other commercial dyes, methylene blue and Thioflavin T. Similar with RhB, each tested dye was mostly encapsulated in the RPWM assemblies and visibly removed from water (Figure S17). The removal efficiency was separately calculated as 99.2 % and 98.7 % for methylene blue and Thioflavin T, suggesting the remarkable capability of RPWM assemblies for dye removal from aqueous solution.…”

“…The removal efficiency could reach as high as 99.5 %, comparable to the previously reported materials. [51][52][53] Afterwards, the precipitates were mixed with water again and placed under 4 °C for the further release. As shown in Figure S15, only few dye molecules (< 3%) were detected to be released from the assemblies after 24 h. Since the system was kept at 4 °C, the initially formed nanosphere structures were not destroyed, thus the adsorbed or embedded RhB molecules were still persisted in the assembly system.…”

In-situ carbonization of ZIF-67 to fabricate magnetically Co/N-mC with high adsorption capacity toward water remediation

“…The maximum adsorption capacity of Co/N-mC adsorbent for MO and RhB respectively is 178 mg g −1 and 141 mg g −1 . As listed in Table 1, compared with magnetic porous carbon [33], CMK-3 [34], magnetic biochar [35], N-doped carbons [36] and other types of adsorbents [37][38][39], Co@N-mC composites presented higher adsorption activity for RhB or MO. The adsorption capacity over Co@N-mC composites was sequenced by MO > RhB might be caused by (1) small sized MO need shorter time but adsorption amount might be increased which the porosity of carbon plays a leading role.…”

Novel Fe3O4–poly(methacryloxyethyltrimethyl ammonium chloride) adsorbent for the ultrafast and efficient removal of anionic dyes

“…). 14 Huang et al adopted in situ synthesis to prepare PEI-Pt modied bacterial cellulose as a bio-adsorbent for the efficient adsorption of anionic dyes. 15 Methacrylatoethyltrimethyl ammonium chloride (DMC) is a type of cationic monomer containing quaternary ammonium groups.…”

“…For example, Chowdhury et al synthesized a positively charged Ni–Co–S/CTAB adsorbent that exhibited effective adsorption for Congo red, methyl orange, and dichromate (Cr 2 O 7 2− ). 14 Huang et al adopted in situ synthesis to prepare PEI–Pt modified bacterial cellulose as a bio-adsorbent for the efficient adsorption of anionic dyes. 15 Methacrylatoethyltrimethyl ammonium chloride (DMC) is a type of cationic monomer containing quaternary ammonium groups.…”