School of Life Science, School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, Zhejiang, PR China.
School of Life Science, School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, Zhejiang, PR China.
Bioresour Technol. 2022 Mar;347:126700. doi: 10.1016/j.biortech.2022.126700. Epub 2022 Jan 13.
Novel materials that nano-FeS and starch (or chitosan) loaded on peanut shells biochar(Starch-FeS@PSB and Chitosan-FeS@PSB) were prepared and applied for removal of Pb(II) and nitrogen(NO-N and NH-N) in wastewater. It showed that Starch-FeS@PSB and Chitosan-FeS@PSB had excellent absorptive effects compared with PSB. The maximum adsorption capacity of Pb(II) by Starch-FeS@PSB and Chitosan-FeS@PSB reached 91.74 mg/g, 98.04 mg/g, respectively. Absorption of Pb(II) by Starch-FeS@PSB and Chitosan-FeS@PSB were controlled by monolayer chemisorption. Mechanism studies showed that complexation, electrostatic attraction, REDOX and physical absorption happened on the adsorbent surface. In addition, the maximum adsorption capacity of NO-N and NH-N by Starch-FeS@PSB and Chitosan-FeS@PSB reached 16.89 mg/g, 15.65 mg/g, and 18.45 mg/g, 18.28 mg/g, respectively. Absorption of N by Starch-FeS@PSB and Chitosan-FeS@PSB were controlled by multilayer chemisorption. Mechanism studies showed that complexation, electrostatic attraction and physical absorption happened on the adsorbent surface. Starch-FeS@PSB and Chitosan-FeS@PSB can be utilized in Pb(II) and N wastewater treatment.
新型材料纳米 FeS 和淀粉（或壳聚糖）负载在花生壳生物炭上（Starch-FeS@PSB 和 Chitosan-FeS@PSB）被制备出来，并应用于去除废水中的 Pb(II) 和氮（NO-N 和 NH-N）。结果表明，与 PSB 相比，Starch-FeS@PSB 和 Chitosan-FeS@PSB 具有优异的吸附效果。Starch-FeS@PSB 和 Chitosan-FeS@PSB 对 Pb(II) 的最大吸附容量分别达到 91.74 mg/g 和 98.04 mg/g。Starch-FeS@PSB 和 Chitosan-FeS@PSB 对 Pb(II) 的吸附受单层化学吸附控制。机理研究表明，在吸附剂表面发生了络合、静电吸引、氧化还原和物理吸附。此外，Starch-FeS@PSB 和 Chitosan-FeS@PSB 对 NO-N 和 NH-N 的最大吸附容量分别达到 16.89 mg/g 和 15.65 mg/g，以及 18.45 mg/g 和 18.28 mg/g。Starch-FeS@PSB 和 Chitosan-FeS@PSB 对 N 的吸附受多层化学吸附控制。机理研究表明，在吸附剂表面发生了络合、静电吸引和物理吸附。Starch-FeS@PSB 和 Chitosan-FeS@PSB 可用于处理 Pb(II) 和 N 废水。
