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| Preparation of Papermaking Sludge-based Nanocomposite and Its Adsorption on Heavy Metals in Wastewater |
| Received:February 13, 2023 |
| DOI：10.11981/j.issn.1000-6842.2023.02.109 |
| Key Words:papermaking sludge;chitosan;heavy metal adsorption;Cd2+;Pb2+ |
| Fund Project:玉林师范学院2022年度博士启动项目“TiO2改性光催化剂的制备及其对印染废水的处理研究”（项目编号：G2022ZK22）。 |
| Author Name | Affiliation | Postcode | | LI Na* | College of Chemistry and Food Science，Yulin Normal University，Yulin， Guangxi Zhuang Autonomous Region， 537000 | 537000 | | HU Fengzhe* | Yulin Normal University，Yulin， Guangxi Zhuang Autonomous Region，537000 | 537000 |
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| Abstract: |
| Papermaking sludge-chitosan （SL-CSA） nanocomposite adsorption material was prepared by using papermaking sludge and chitosan. The adsorption properties of SL-CSA nanocomposite material on chromium ion （Cd2+） and lead ion （Pb2+） in wastewater were studied. FT-IR and SEM characterizations proved that the nanocomposite was prepared successfully. The adsorption experiments showed that the adsorptions on Cd2+ and Pb2+ by SL-CSA nanocomposite material conformed to the pseudo-second-order kinetic equation， which was a chemical-adsorption process. According to Langmuir model， the maximum adsorption capacities of Cd2+ and Pb2+ by SL-CSA nanocomposite were 314.05 and 320.06 mg/g， respectively. |
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