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- W4313201891 endingPage "141104" @default.
- W4313201891 startingPage "141104" @default.
- W4313201891 abstract "Increasing chromium pollution poses a significant threat to the global environment and human health, and it is critical to remove hexavalent chromium (Cr(VI)) from water. Hence, a three-dimensional (3D) porous structured cellulose nanofibrils-based hydrogel (CNH) was synthesised using cellulose nanofibrils (CNs), carbon dots (CDs) and α-FeOOH, with CDs-enhanced synergetic effects of adsorption and photocatalysis for removing Cr(VI). In the CNH, CNs were conducted as a natural frame to construct a 3D porous structure increasing the specific surface area and providing additional active sites, CDs enhanced the amino group-induced adsorption for Cr(VI) and facilitated the transfer of photogenerated electron from α-FeOOH, and α-FeOOH was nanosized photocatalyst for generating photogenerated electron. A series of adsorption and photocatalysis experiments showed the superior adsorption-photocatalytic performance, as demonstrated by the large adsorption capacity and high kinetic constant of 115.98 mg/g and 0.06380, respectively, which was about 8 and 26 times as high as that of α-FeOOH. This superior removal performance was due to the mechanism of CDs-enhanced adsorption-photocatalysis synergy. This study not only provided a novel strategy for preparing green and efficient bifunctional materials for high-efficient Cr(VI) removal but also proposed a corresponding novel mechanism for CDs-enhanced synergetic effect of adsorption and photocatalysis." @default.
- W4313201891 created "2023-01-06" @default.
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- W4313201891 date "2023-01-01" @default.
- W4313201891 modified "2023-10-18" @default.
- W4313201891 title "A 3D porous structured cellulose nanofibrils-based hydrogel with carbon dots-enhanced synergetic effects of adsorption and photocatalysis for effective Cr(VI) removal" @default.
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- W4313201891 doi "https://doi.org/10.1016/j.cej.2022.141104" @default.
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